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de7b96cc5e53ba32f54bc773311d3e4144fb5023
in the 1999–2000 season, hildebrand played in six
in the 1999–2000 season, hildebrand played in six bundesliga matches. from the summer of 2000, he was the club's number one goalkeeper and contributed largely to stuttgart's successes, particularly as part of what became known as "stuttgart's young wild ones" team under coach felix magath. he began the 2000–01 season b...
wikipedia
54fdbf606dcb3873ec03cb70883daedf4c5c3390
an inscribed clay, soft metal, bitumen, or wax
an inscribed clay, soft metal, bitumen, or wax token used in commercial and legal documentation as a form of authentication and for tamper-proofing whatever is attached to it. in their oldest attested form, as used in the ancient near east and the middle east of the 8th millennium bc onwards, bullae were hollow clay ba...
wikipedia
4d7920d9b1abd347aacd8845e9d4da3af4de3812
the term bulla was eventually applied to seals
the term bulla was eventually applied to seals made out of metal. although the most typical form of bulla was made of lead, it was sometimes made of gold, as the ones affixed to the several golden bulls issued by the byzantine emperors, holy roman emperors, and various other monarchs in the middle ages. a particularly ...
wikipedia
5505400ff7d0ca1ed476c388c9e560309da94568
within a year of studying these unknown clay
within a year of studying these unknown clay marbles, schmandt-besserat determined that they were tokens that were supposed to be grouped together and that they thus formed some sort of counting system. the transition between hunting and gathering to settling and agriculture took place in the period 8,000 to 7,500 bc i...
wikipedia
904856f6c8717be2ea4ed9b953897d77979fbe9a
french-american archaeologist denise schmandt-besserat focused much of her
french-american archaeologist denise schmandt-besserat focused much of her career on the discovery of over 8,000 ancient tokens found in the middle east. she initially visited museums all around the world studying tablets, bricks, and pots and was surprised to find small clay spheres dating from 10,000 to 6,000 bc in e...
wikipedia
cc17a1eb9a967f26b44667feb95e135dbc8e6cfe
a number of clay bullae from the sasanian
a number of clay bullae from the sasanian era have been discovered at various sasanian sites assisting in identifying personal names, government offices, and religious positions. scholars seem to agree on the typology and purpose of bullae in both civil and domestic environments. the bullae for the administration were ...
wikipedia
dce5609793b2d3798ef842d1dea8b78a66e52a99
later, tokens transitioned into cylinders. around the sixth
later, tokens transitioned into cylinders. around the sixth century bc, cylinders were used in international exchanges between empires. a famous one discovered is the cyrus cylinder. the cyrus cylinder is famous for its suggested evidence of cyrus' policy of repatriation of the hebrew people after their captivity in ba...
wikipedia
9adb4670d8396091d048f0b0f3827349b470c75c
the earliest known tokens are those from two
the earliest known tokens are those from two sites in the zagros region of iran: tepe asiab and ganj-i-dareh tepe. schemandt-besserat was able to work back in time and saw the same shapes from cuneiform to pictographs to these tokens. most of these tokens have no translation though.
wikipedia
26ffdaa9797a2a9c495c7b76017bfe7d94291e12
designs were inscribed on the clay seals to
designs were inscribed on the clay seals to mark ownership, identify witnesses or partners in commerce, or control of government officials. the later “official” seals were usually larger than private seals and could be designated seals of office, with inscriptions only identifying the office. in many cases, fingerprint...
wikipedia
0ff998602caca3501425c8ee65a680192b260c64
as papyrus and parchment gradually replaced clay tablets,
as papyrus and parchment gradually replaced clay tablets, bullae became the new encasement for scrolls of this new writing style. documents were split into two halves, separated in the middle by multiple perforations. the top half was rolled into a scroll and a cord would wrap this section tight, going through the perf...
wikipedia
5bc7b11e8190cd2ddff2ad9eda76a075296d3bc2
a further development involved impressing tokens to make
a further development involved impressing tokens to make marks on a solid lump of clay or a tablet. only the tablet was then kept. because of the complicated shapes and designs of the complex tokens, which did not transfer well by impression, an image of the token would be drawn on the clay instead. this practice, in p...
wikipedia
1e849837b515de100d0af250590c447a6e32c4f9
tokens were collected and stored in bullae, either
tokens were collected and stored in bullae, either for future promised transactions or as a record of past transactions. the practice of storing tokens in clay envelopes was more significant for the development of mathematics; initially, because these clay envelopes were not transparent; they would have to be broken op...
wikipedia
c6e54b1ee14484e6d30c3c9e60328c9cd7acdf95
the sumerians developed a complex system of metrology
the sumerians developed a complex system of metrology as early as 3000 bc. from 2600 bc onwards, the sumerians wrote multiplication tables, division problems, and geometry on clay tablets. the earliest evidence of the babylonian numerals also date back to this period. this evidence may suggest that the use of bullae le...
wikipedia
4ea022445338b1dd58f5c7fca1c1fe66bce01461
during the early bronze age, urban economies developed
during the early bronze age, urban economies developed due to urban settlements and the development of trade. the recording of trade became necessary because production, shipments, inventories, and wage payments had to be noted, and merchants needed to preserve records of their transactions. tokens were replaced by pic...
wikipedia
d486cd2c7abb6cc69303438091f6bc83fc5517c0
as the clay tokens and bulla became difficult
as the clay tokens and bulla became difficult to store and handle, impressing the tokens on clay tablets became increasingly popular. clay tablets were easier to store, neater to write on, and less likely to be lost. impressing the tokens on clay tablets was more efficient but using a stylus to inscribe the impression ...
wikipedia
7a3f47d8355f4e39e33b93b97f1ce6dd8ecdeeb2
transactions for trading needed to be accounted for
transactions for trading needed to be accounted for efficiently, so the clay tokens were placed in a clay ball (bulla), which helped to prevent deception and kept all the tokens together. in order to account for the tokens, the bullae would have to be broken open to reveal their contents. seals were impressed into the ...
wikipedia
8ed53d639de91e42474557b96a578e2bf43a45ba
clay tokens allowed agriculturalists to keep track of
clay tokens allowed agriculturalists to keep track of animals and food that had been traded, stored, and/or sold. because grain production became such a major part of life, they needed to store their extra grain in shared facilities and account for their food. this clay token system went unchanged for about 4,000 years...
wikipedia
62ef9b38a42f7b81cb32da06108ea41e2cca665e
in their oldest attested form, as used in
in their oldest attested form, as used in the ancient near east and the middle east of the 8th millennium bc onwards, bullae were hollow clay balls that contained other smaller tokens that identified the quantity and types of goods being recorded. in this form, bullae represent one of the earliest forms of specializati...
wikipedia
0767a183c1b05233af93f3d4fc89b1d721b59f21
a bulla (medieval latin for "a round seal",
a bulla (medieval latin for "a round seal", from classical latin bulla, "bubble, blob"; plural bullae) isan inscribed clay, soft metal (lead or tin), bitumen, or wax token used in commercial and legal documentation as a form of authentication and for tamper-proofing whatever is attached to it (or, in the historical for...
wikipedia
372a33c5beabead9088157bd2422500b6056a332
issam chebake (arabic: عصام شباك; born 12 october
issam chebake (arabic: عصام شباك; born 12 october 1989) is a moroccan professional footballer who plays as a right-back for cypriot first division club apoel and the morocco national team.
wikipedia
a40135b839b8bdad440b63272c873279b55cc701
victoria a. braithwaite was a british scientist who
victoria a. braithwaite was a british scientist who was a professor of animal behaviour and cognition at pennsylvania state university. she was the first person to demonstrate that fish feel pain, which impacted animal welfare research and changed guidelines for the treatment of fish in laboratories and fisheries in th...
wikipedia
6b5613a9d6618adcc1f563c59180c3818a5ea67e
braithwaite joined pennsylvania state university in 2007, where
braithwaite joined pennsylvania state university in 2007, where she was appointed professor of fisheries and biology. here she demonstrated that providing a more natural environment for fish impacted their cognitive abilities and likelihood to survive in the world. before braithwaite's work, fish that had been reared i...
wikipedia
894d31d777f1d7d859d903bc9cf481e389d129e4
she moved to the university of edinburgh in
she moved to the university of edinburgh in 1995 where she began to investigate whether or not fish felt pain – so-called nociception. whilst it was well understood that chickens and sheep experienced pain, before braithwaite it was not known whether or not fish did too. she demonstrated fish felt pain using a series o...
wikipedia
0f2f5995fc6c91ba0afc6f8ec8859e1cbe10d80a
braithwaite spent her career investigating the cognitive abilities
braithwaite spent her career investigating the cognitive abilities of fish and other animals. she showed that fish which live in stable environments (like ponds) use visual markers for guides, whereas fish that live in rivers learn directions using sequences (like left, right, left, right). her research was the first t...
wikipedia
4808bd64e577e8eafc96773a6e3e5aa3004d4eff
braithwaite was born in bradford. she was one
braithwaite was born in bradford. she was one of seven children. her mother, june pickles, was chair of the halifax magistrates' bench, and her father, alan braithwaite, was a company director. she attended bradford grammar school, where she was not encouraged to apply to the university of oxford. she did not take this...
wikipedia
110d0aba014e0378a6f67a7e868b50bd68a40d52
victoria a. braithwaite (19 july 1967 – 30
victoria a. braithwaite (19 july 1967 – 30 september 2019) was a british scientist who was a professor of animal behaviour and cognition at pennsylvania state university. she was the first person to demonstrate that fish feel pain, which impacted animal welfare research and changed guidelines for the treatment of fish ...
wikipedia
109399bbbbe6afcb0c62cb4c8460bfe6c0106b80
2,4-dichlorophenoxyacetic acid is an organic compound with the
2,4-dichlorophenoxyacetic acid is an organic compound with the chemical formula cl2c6h3och2co2h. it is usually referred to by its iso common name 2,4-d. it is a systemic herbicide that kills most broadleaf weeds by causing uncontrolled growth, but most grasses such as cereals, lawn turf, and grassland are relatively un...
wikipedia
f0ecd47506186760ad114104b90bc6bc826575e5
as of april 2014, genetically modified maize and
as of april 2014, genetically modified maize and soybeans resistant to 2,4-d and glyphosate have been approved in canada. in september 2014, the usda also approved dow's maize and soybeans, and in october, the epa registered the "enlist duo" herbicide containing 2,4-d and glyphosate.
wikipedia
511e2d4906fc0416f0dac57674330068f377eae0
in 2010, dow published that it had created
in 2010, dow published that it had created genetically modified soybeans made resistant to 2,4-d by insertion of a bacterial aryloxyalkanoate dioxygenase gene, aad1. dow intended it to be used as an alternative or complement to roundup ready crops due to the increasing prevalence of glyphosate -resistant weeds.
wikipedia
a80acd1995f9c37ba7b9ac1c07f273b075cdbb9b
on 21 august 2013, the australian pesticides and
on 21 august 2013, the australian pesticides and veterinary medicines authority (apvma) banned selected 2,4-d high volatile ester (hve) products due to their environmental hazards. hve 2,4-d products had already been banned in europe and north america for 20 years; low volatile ester products continue to be available i...
wikipedia
cb7949ffb206303dfc91eb6faf532d5b49d84c09
in october 2014, the us epa registered enlist
in october 2014, the us epa registered enlist duo, an herbicide containing the less volatile 2,4-d choline salt, glyphosate, and an antidrift agent, for use in six states: illinois, indiana, iowa, ohio, south dakota, and wisconsin. in november 2015, the epa attempted to withdraw its own approval of enlist duo, as a res...
wikipedia
8178c7a102a01d63b55c0b7ba44f4fd2540b3e9a
in 2012, epa denied the petition filed november
in 2012, epa denied the petition filed november 6, 2008, by the natural resources defense council to revoke all tolerances and to cancel all registrations of 2,4-d. epa stated that new study and epa's comprehensive review confirmed epa's previous finding that the 2,4-d tolerances are safe at anticipated exposure. the e...
wikipedia
74994ff5fc8b27b6672a4a7fb2afdfdc656c99e7
maximum residue limits were first set in the
maximum residue limits were first set in the eu in 2002 and re-evaluated in 2011 by the european food safety authority, which concluded that the codex maximum residue limits were "not expected to be of concern for european consumers". the total chronic exposure represented less than 10% of the acceptable daily intake (...
wikipedia
71d9982760baa653a82ebcc43e8658d24835fe27
a number of 2,4-d-degrading bacteria have been isolated
a number of 2,4-d-degrading bacteria have been isolated and characterized from a variety of environmental habitats. metabolic pathways for the compound's degradation have been available for many years, and genes encoding 2,4-d catabolism have been identified for several organisms. as a result of the extensive metadata ...
wikipedia
bda4689d795513f61018b62f12b2d0a9d6bcb7b5
"the ester forms of 2,4-d can be highly
"the ester forms of 2,4-d can be highly toxic to fish and other aquatic life. 2,4-d generally has moderate toxicity to birds and mammals, is slightly toxic to fish and aquatic invertebrates, and is practically nontoxic to honeybees" per epa.
wikipedia
c75b853728a6679bae6d1b8295fe2b0b0facf8cc
in aerobic aquatic environments, the half life is
in aerobic aquatic environments, the half life is 15 days. in anaerobic aquatic environments 2,4-d is more persistent, with a half life of 41 to 333 days. 2,4-d has been detected in streams and shallow groundwater at low concentrations, in both rural and urban areas. breakdown is ph dependent. some ester forms are high...
wikipedia
1e440bd167b7530642fe585a8293dd820befef23
2,4-d amine salts and esters are not persistent
2,4-d amine salts and esters are not persistent under most environmental conditions. the degradation of 2,4-d is rapid (half life of 6.2 days) in aerobic mineral soils. 2,4-d is broken down by microbes in soil, in processes that involve hydroxylation, cleavage of the acid side-chain, decarboxylation, and ring opening. ...
wikipedia
b2c0ce5ea0bb3987d201e3de58c64e6e56afbefb
when radioactively labeled 2,4-d was fed to livestock,
when radioactively labeled 2,4-d was fed to livestock, 90% or more of the total radioactive residue (trr) was shed in urine unchanged or as conjugated forms of 2,4-d. a relatively small portion of 2,4-d was metabolized into dichlorophenol, dichloroanisole, 4-chlorophenoxyacetic acid (6.9% of the trr in milk), and 2,4-d...
wikipedia
5f5b978de0a22e38114176555d1d27a7ac49df01
a july 2013 four corners investigation found elevated
a july 2013 four corners investigation found elevated levels of dioxins in a generic version of 2,4-d, one of australia's most widely used herbicides. samples imported from china had "one of the highest dioxin readings for 2,4-d in the last 10 to 20 years, and could pose potential health risks."
wikipedia
be1c629c4ec00feeda14cc4401c93bfb9a52bbc8
in a prior 1987 report the iarc classified
in a prior 1987 report the iarc classified some chlorphenoxy herbicides including 2,4-d, mcpa and 2,4,5-t as a group as class 2b carcinogens - "possibly carcinogenic to humans".
wikipedia
8cb83ae8299ff21532beee93b385ee1533be000a
a 1995 panel of 13 scientists reviewing studies
a 1995 panel of 13 scientists reviewing studies on the carcinogenicity of 2,4-d had divided opinions. none of the scientists thought the weight of the evidence indicated that 2,4-d was a "known" or "probable" cause of human cancer. the predominant opinion indicated that it is possible that 2,4-d can cause cancer in hum...
wikipedia
6339b06312ecb9fd88d74d056dc2442d9a4f7893
the international agency for research on cancer classifies
the international agency for research on cancer classifies 2,4-d as a possible carcinogen to humans while the united states environmental protection agency does not. the international agency for research on cancer (iarc), said 2,4-d was classified as "possibly carcinogenic to humans (group 2b), based on inadequate evid...
wikipedia
dd09ccab983564315f12f5b38536567517a378e6
according to the u.s. environmental protection agency, "the
according to the u.s. environmental protection agency, "the toxicity of 2,4-d depends on its chemical forms, including salts, esters, and an acid form. 2,4-d generally has low toxicity for humans, except certain acid and salt forms can cause eye irritation. swimming is restricted for 24 hours after application of certa...
wikipedia
4e6e6b9f9331511eb61c76cf75883bbe075c08b8
2,4-d has been used in laboratories for plant
2,4-d has been used in laboratories for plant research as a supplement in plant cell culture media such as ms medium since at least 1962. 2,4-d is used in plant cell cultures as a dedifferentiation (callus induction) hormone. it is classified as an auxin plant hormone derivative.
wikipedia
3a7abaf3bb093a9c88ea3cc0b47dfdeb6d5e5ef0
in domestic lawn and garden maintenance, 2,4-d is
in domestic lawn and garden maintenance, 2,4-d is commonly used. in forestry, it is used for stump treatment, trunk injection, and selective control of brush in conifer forests. along roadways, railways, and power lines, it is used to control weeds and brush which might interfere with safe operation and damage equipmen...
wikipedia
baff8f6777b2629f2aa32bb469c37b14b82bbc77
a variety of sectors use products containing 2,4-d
a variety of sectors use products containing 2,4-d to kill weeds and unwanted vegetation. in agriculture, it was the first herbicide for selective killing of weeds but not crops. it has been used since 1945 to control broad-leafed weeds in pastures, orchards, and cereal crops such as corn, oats, rice, and wheat. cereal...
wikipedia
4b77ac624e4b73eb9c3b149ce3612f2bca9aa958
2,4-d is primarily used as a selective herbicide
2,4-d is primarily used as a selective herbicide that kills many terrestrial and aquatic broadleaf weeds, but not grasses. 2,4-d can be found in commercial lawn herbicide mixtures, which often contain other active ingredients including mecoprop and dicamba. over 1,500 herbicide products contain 2,4-d as an active ingre...
wikipedia
e42403e639f678201b564f3c0f0dfed9da28311f
2,4-d is a synthetic auxin that induces uncontrolled
2,4-d is a synthetic auxin that induces uncontrolled growth and eventually death in susceptible plants. it is absorbed through the leaves and is translocated to the meristems of the plant. uncontrolled, unsustainable growth ensues, causing stem curl-over, leaf withering, and eventual plant death. 2,4-d is typically app...
wikipedia
7c96f97ad65af3eb2c245b35dff189e44c7cc71d
2,4-d is a member of the phenoxy family
2,4-d is a member of the phenoxy family of herbicides. it is manufactured from chloroacetic acid and 2,4-dichlorophenol, which is itself produced by chlorination of phenol. alternatively, it is produced by the chlorination of phenoxyacetic acid. the production processes may create several contaminants including di-, tr...
wikipedia
7bbf0cfd991e4e47bca86377d6f729f20e4b3439
in the 2000s, dow agrosciences developed a new
in the 2000s, dow agrosciences developed a new choline salt version of 2,4-d (2,4-d choline) that dow included in its "enlist duo" herbicide along with glyphosate and an agent that reduces drift; the choline salt form of 2,4-d is less volatile than 2,4-d.
wikipedia
a10498985bdc35c52860ae08bf78daf0d69575a3
2,4-d is one of the ingredients in agent
2,4-d is one of the ingredients in agent orange, an herbicide that was widely used during the malayan emergency and the vietnam war. however, 2,3,7,8-tetrachlorodibenzodioxin (tcdd), a contaminant in the production of another ingredient in agent orange, 2,4,5-t, was the cause of the adverse health effects associated wi...
wikipedia
83c9279f1ce89a99b6e1a7b7089b1d73a3948813
the first publication of 2,4-d's use as a
the first publication of 2,4-d's use as a selective herbicide came in 1944. the ability of 2,4-d to control broadleaf weeds in turf was documented soon thereafter, in 1944. starting in 1945, the american chemical paint company brought 2,4-d to market as an herbicide called "weedone". it revolutionized weed control, as ...
wikipedia
096f2b8f906ceebd8432efbd5f34feec4d2b0361
2,4-d was not used as a chemical warfare
2,4-d was not used as a chemical warfare agents during the war. the allies of world war ii were looking for a chemical to starve nazi germany and japan into submission by killing their potato and rice crops, but 2,4-d was found to be ineffective for that purpose, because both crops tolerate it. within a year after the ...
wikipedia
75baa28bd07d5b80921da6a0b8ac40182967e09d
in the usa, a similar search for an
in the usa, a similar search for an acid with a longer half life, i.e., a metabolically and environmentally more stable compound, led to 2,4-dichlorophenoxyacetic acid (2,4-d) and 2,4,5-trichlorophenoxyacetic acid (2,4,5-t), both phenoxy herbicides and analogs of iaa. robert pokorny, an industrial chemist for the c.b. ...
wikipedia
fa2b35d4214e13754da059e46379953161a4da27
william templeman found that when indole-3-acetic acid (iaa),
william templeman found that when indole-3-acetic acid (iaa), a naturally-occurring auxin, was used at high concentrations, it could stop plant growth. in 1940, he published his finding that iaa killed broadleaf plants within a cereal field. mcpa was discovered at about that time by his ici group.
wikipedia
97757219125236c15084978105153fcc25a3c3c6
2,4-d was first reported in 1944 by franklin
2,4-d was first reported in 1944 by franklin d-jones at the c. b. dolge company in connecticut. the biological activity of 2,4-d as well as the similar hormone herbicides 2,4,5-t, and mcpa were discovered during world war ii, a case of multiple discovery by four groups working independently under wartime secrecy in the...
wikipedia
480e534ed3263e7c5371c3921f86ccf298387056
2,4-d is one of the oldest and most
2,4-d is one of the oldest and most widely available herbicides and defoliants in the world, having been commercially available since 1945, and is now produced by many chemical companies since the patent on it has long since expired. it can be found in numerous commercial lawn herbicide mixtures, and is widely used as ...
wikipedia
e8c32b8a078e7ee44ebec8f3220d9b4021790d89
2,4-dichlorophenoxyacetic acid is an organic compound with the
2,4-dichlorophenoxyacetic acid is an organic compound with the chemical formula cl c h och co h. it is usually referred to by its iso common name 2,4-d. it is a systemic herbicide that kills most broadleaf weeds by causing uncontrolled growth, but most grasses such as cereals, lawn turf, and grassland are relatively un...
wikipedia
0dae1012daa34c10dbaf0d6fbbd01ee6d25df7dc
avro vulcan xh558 spirit of great britain was
avro vulcan xh558 spirit of great britain was the last remaining airworthy example of the 134 avro vulcan jet-powered delta winged strategic nuclear bomber aircraft operated by the royal air force during the cold war. it was the last vulcan in military service, and the last to fly at all after 1986. it last flew on 28 ...
wikipedia
b3f1fd5e74df09d922c077cceb22e5f4f49d97f0
avro vulcan xh558 spirit of great britain was
to gain an extra two years of flight, on 15 may 2015 it was confirmed that 2015 would be xh558's last flying season, due to the third-party companies responsible for maintaining it withdrawing their support. since its last flight, xh558 is now kept in taxiable condition, in common with two of the other surviving vulca...
wikipedia
6899312bba1ee5f787834af0cdb655283b35d7ea
the only offensive operations for the vulcan came
the only offensive operations for the vulcan came in the 1982 falklands war, by which time only 32 were still in service. the best 10 were selected for use on the black buck raids. having been converted to the maritime reconnaissance role in 1973, xh558 was not involved in the missions, although as the last remaining v...
wikipedia
222ad56c40926f0c0c02721d49e147369db3782d
one of the reasons the heritage lottery fund
one of the reasons the heritage lottery fund accepted the trust's resubmitted proposal in 2003 was because it had been suitably refocused on the educational aspects of the restoration with reference to the vulcan's role as a nuclear deterrent during the cold war, in which the permanent readiness of the v-force provided...
wikipedia
46361080df9ab9b293f128cd6c75680b0e024b28
in civilian configuration xh558 only requires a crew
in civilian configuration xh558 only requires a crew of three to fly – two pilots and the air electronics officer (aeo). when visiting other airfields, a crew chief is added. assistance with pre-flight training of the crew was provided by the owners of ground operational vulcans xm655 and xl426. pilots are said to find...
wikipedia
9b5d318b1df6dd630a9dd97cea1a70424ad4801d
in 2011, the trust relocated to a new
in 2011, the trust relocated to a new base at doncaster sheffield airport, with xh558 flying from raf lyneham to robin hood on 29 march. the airport is the former raf finningley airbase where xh558 was previously based for 8 years during the 1960s. one of the reasons for the move to a commercial airport was to improve ...
wikipedia
026e050bc70a4d9ed17ca0d0dfc23dc93fc25d26
at the end of 2009, xh558 was moved
at the end of 2009, xh558 was moved from its bruntingthorpe winter base to a new temporary base at raf lyneham in wiltshire, an active raf station, while the trust's offices were relocated to hinckley, leicestershire. the move was for cost and logistical reasons, particularly the ongoing risk of foreign body damage to ...
wikipedia
450a73e368de7f2bd47b1cc231515ac7482e6590
for its first summer display season (2008), xh558
for its first summer display season (2008), xh558 was based at raf brize norton in oxfordshire, returning to its maintenance base at bruntingthorpe in winter. it was also a regular visitor to raf waddington for summer practice flights, as it offered more flexibility than bruntingthorpe. in the early years, some display...
wikipedia
816d17ddf001c072f580908a4431f7dd82f50d5c
xh558's first home after its raf career (from
xh558's first home after its raf career (from 1993) was at the bruntingthorpe aerodrome in leicestershire, owned by the walton family. opened in 1942 as raf bruntingthorpe, it now served as a private airport and proving ground.
wikipedia
b1e7c65980fc498390b1cef8cc9e8a07de4eed7a
in early 2013 a feasibility study by cranfield
in early 2013 a feasibility study by cranfield aerospace concluded the wing repair was possible, involving the reverse engineering of the parts required to perform avro's original modification 2221. this would then extend their flying life by two years. consequently, at the start of the 2013 season the trust reversed t...
wikipedia
49c088d9764f2f3a79295855a5a4ee4d95f0da08
at the end of the 2012 season it
at the end of the 2012 season it was announced that 2013 would likely be the last, due to the fact the wings will have reached the end of their permitted flying life without a life-extending rectification (leading edge skin reinforcement) costing £200,000. this carried risks due to the inability to correct any mistakes...
wikipedia
695eab801d42d4535ad6c71dbe185b5a028a7181
with the plan to retire xh558 after 2013
with the plan to retire xh558 after 2013 later reversed, at the start of the 2013 season a major funding drive was announced to address various issues with the goal of securing flight to the end of the 2015 season – see operation 2015.
wikipedia
4fbc58d7b71f5206f6ecee051f2be4d9bab0a449
even though it was now expected to be
even though it was now expected to be its last due to the engineering situation, the ability to even complete the 2013 season was also cast into doubt when the drive to fund the ordinary winter maintenance period only raised half of the target of £400,000.
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83af3d1ee204ed0bd0d6c3cf2919761b7c3cbd8f
at 2012 prices, without taking into account any
at 2012 prices, without taking into account any additional repairs required, the yearly cost of general maintenance, fuel and insurance for one year's display flight was over £2m, still far beyond the earnings made from the actual displays, meaning the project continued to be reliant on donations or other sources of fu...
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86c6ba60c76f26d6ae79d769fe336c1403f9b7bf
having funded the winter 2010/11 maintenance, it was
having funded the winter 2010/11 maintenance, it was hoped that increased marketing and a record season of displays in 2010 would make the need for a summer funding drive unnecessary. this didn't prove to be the case due to rising fuel costs and vat regulation changes, requiring another appeal for £350,000 to be raised...
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296b3648819b1dbdfb9cdde70ecfc22640175868
after the final display of the 2010 season
after the final display of the 2010 season on 26 september, the trust again warned of a shortfall in part due to the recession, launching an appeal for the £400,000 required by the end of october to fund the project through the winter maintenance period. despite reaching a critical stage in the last few days and ultima...
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8a4057469264e27167c0b8c82e4cc2772ef61087
a shortfall in donations again attributed to the
a shortfall in donations again attributed to the recession sparked another funding crisis in early 2010, with staff again put on notice and £650,000 needing to be raised by the end of march. with funding for maintenance work brought forward from 2011 also required, the vulcan 50th birthday appeal was launched to raise ...
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c153e2d164f610eea2f0b6dd68e07c3492b1fba3
during this crisis, appeals were made to the
during this crisis, appeals were made to the government to step in, with celebrity supporters richard branson, robin gibb, frederick forsyth and air chief marshal michael knight appealing in national newspapers for xh558 to be added to the battle of britain memorial flight and the trust starting a downing street petiti...
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8b6f5568a1283fa6a931b11ea93feaf125c2305c
the great recession thwarted plans to secure major
the great recession thwarted plans to secure major commercial sponsorship, with the trust also believing xh558's past as a nuclear bomber made some investors reluctant to get involved. after its first display season, the operating costs for one year's flight were estimated as £1.6m per year, with insurance alone costin...
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aa372ba678fd50dfb61d612db5f084a379191370
with the return to flying, consideration was given
with the return to flying, consideration was given to using the vulcan as a flying billboard as a way to generate continued funding. once restored to flight, some money was able to be recouped by charging a fee for a display (£8,000 for a full display, in the first year). based on a flight time of 50 hours, the fuel bi...
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0baf31e861fcb63398f5cf7215a3b8baa9082af0
the project faced a funding crisis in 2006,
the project faced a funding crisis in 2006, with an appeal being sent out on 1 august for £1.2m to be raised by the end of the month, or the restoration would have to be suspended indefinitely. the target was reached thanks in part to a last minute donation of £500,000 from a mystery donor. the donor was later named as...
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998b3d7b9fa16a35282baf2d7fb5273369ab24c4
an application to the heritage lottery fund lodged
an application to the heritage lottery fund lodged in 2001 was controversially rejected a year later, attributed to the fund's lack of enthusiasm for flight projects. on the hlf's advice, the bid was refocused and a resubmitted proposal in 2003 was accepted; £2,734,000 being awarded on 23 june 2004. a total of £1m from...
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cd57ed6c22947dddb71d0d2cc7a29f1d5bf01152
on 28 may 2012, shortly before a take-off
on 28 may 2012, shortly before a take-off run from doncaster sheffield airport on a practice flight, both port engines developed a fault and had to be shut down, closing the airport for 90 minutes. the cause was ingestion of silica gel desiccant bags into no. 1 engine, which failed and led to debris entering no. 2 engi...
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f4e3ce07acae21cb59dd1e5051e327f125212db9
as the aircraft operated under visual flight rules
as the aircraft operated under visual flight rules (vfr), it could not fly through clouds to higher altitudes where turbulence is lower, as this would require instrument flight rules (ifr) certification. flying vfr in lower, often turbulent air, the airframe suffers from more fatigue which increases fatigue-index (fi) ...
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93c82ae78796c6944aedf86a11400df49608c18f
various electrical faults disrupted the april 2008 test
various electrical faults disrupted the april 2008 test flights – on the 14th a trip to raf cottesmore resulted in the crew declaring an emergency and landing at cottesmore believing the auxiliary power unit (apu) was on fire, only to find later it was simply a faulty warning light. another flight two days later had to...
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70ea4e582051472605e6f70f9817d0a3364ecb6a
the restoration removed the redundant offensive and defensive
the restoration removed the redundant offensive and defensive systems, including the navigation and h2s radar, reducing the maximum all up weight to 146,000 lb. this includes dead weight which had to be re-added in certain places, to re-balance the aircraft. as part of the restoration, all four of the vulcan's original...
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c2c1ff1803a7e9651135f792f9ad5ccaadd713bc
included in the sale to the walton family
included in the sale to the walton family were eight engines and 17.5 tons of spares. to execute the restoration, david walton established the vulcan operating company (tvoc) as an engineering division of c walton ltd, owners of bruntingthorpe airfield. as a suitably approved organisation, marshal aerospace were appoin...
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5661e5f132fa2a67c12fab1a4234da9f92eb86a6
according to andrew edmondson, engineering director of the
according to andrew edmondson, engineering director of the trust, the restoration of xh558 was "the most complex return-to-flight project ever attempted in the world". the trust's head often references the 11-year gap between the first flights of the lancaster bomber and the vulcan to highlight to the public what a tre...
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e659654f71855f97717576b28b7dd2a3c86c44ec
vulcan xh558 flew a final national tour on
vulcan xh558 flew a final national tour on 10 and 11 october 2015. the tour was split into two halves with the northern route being flown on 10 october and the southern route being flown on 11 october. the tour incorporated waypoints which including several locations significant to both the life of xh558 and the v-forc...
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dc6793bd148aac7f2b047335adca6f09caa2462a
until the shoreham crash, the last flying season
until the shoreham crash, the last flying season of the vulcan was attributed as one of the reasons for sell-out crowds at air shows across the country, although in the week after it was not expected to affect spectator numbers at other shows, most of which were due to go ahead on the august bank holiday weekend with o...
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4d4cfb6a8d82152b7b5ff2bd2736fed4b97c9a77
as a result of the crash, on 24
as a result of the crash, on 24 august the caa imposed temporary regulations on civilian vintage jets displaying over land, restricting them to flypasts and banning high energy aerobatics. citing this restriction on the vulcan, on 26 august the durham tees valley air show planned for 29 august was postponed to 2016. th...
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b4c7e4dfb0c5eea252718036f2c71fd16f8dd090
a planned weekend appearance on 21/22 august 2015
a planned weekend appearance on 21/22 august 2015 at the shoreham airshow was interrupted by the crash of a hawker hunter. the hunter crashed on the first day, just before 13.30 (bst), with the vulcan due to appear at 14.05. a de havilland sea vixen that was already airborne for the next display instead flew a tribute,...
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aa07e65645a40f007c01d1d89eb1eaddc2be70bf
the final season began on 6 june 2015
the final season began on 6 june 2015 with a display at throckmorton, worcestershire. it proceeded as planned with into august with only one cancellation, the mini-display for the flywheel festival in bicester, oxfordshire, on 21 june. displays up to august included the salute the v-force tour on the weekend of 27 and ...
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08d033c14521f32a65893de0f138cba1507ced0c
to celebrate 2012 being the 60th anniversary (diamond
to celebrate 2012 being the 60th anniversary (diamond jubilee) of both the first flight of the vulcan and the coronation of elizabeth ii, it was planned for xh558 to visit over 30 displays on a tour to celebrate britain's aviation and engineering achievements during the queen's reign. the engine failure in may led to s...
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0a38f51e9d28631e69641b29d7eb35b27bb02f7e
in order to extend the life of the
in order to extend the life of the aircraft, for the 2010 season the flight time was limited to between 30 and 40 hours, reducing the number of air show appearances from 2009. some two-day fly-in shows were limited to just one appearance, with the first day being given preference to allow the second day to act as a res...
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8f71c101c27c05ac6c7e3c74869a327eade5e170
it was estimated that 3.8 million people saw
it was estimated that 3.8 million people saw xh558 in the summer of 2008, 1.5 million at displays. in 2009, she made her first and only appearance abroad, when she attended the royal netherlands air force open days at volkel air base in the netherlands. a popular feature of xh558 as flypasts and air shows is the so-cal...
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08ebef55f014f69331f54902168f4639777e9276
the first post-restoration display at raf waddington comprised
the first post-restoration display at raf waddington comprised a flypast with the avro lancaster of the battle of britain memorial flight, and then a solo display. for the first season, it was anticipated the vulcan would be able to perform 13 appearances. ultimately however, three appearances were cancelled due to tec...
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17bd7bb0bbb4735e448175fb14abcd165c2975e7
although xh558 had achieved its first flight in
although xh558 had achieved its first flight in 2007, delays had meant it was unable to return to the display circuit for the 2007 season as had been hoped, or join the flypast down the mall in london on 17 june 2007 marking the 25th anniversary of the falklands war. post-restoration, displays were conducted every year...
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37c98d18f159903c3d6f1b20960cad163865abcd
the trust's ongoing commitment was to keep xh558
the trust's ongoing commitment was to keep xh558 in good condition and use it for educational purposes, which they committed to do for 80 years as a condition of the 2005 lottery funding. the first stage was to establish the vulcan aviation academy & heritage centre, involving an academy building for 14–18 year olds, f...
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7ca70036d05f33eafbf066ade01f84b16ce9acbe
with xh558 now permanently grounded, the trust intended
with xh558 now permanently grounded, the trust intended to make the vulcan the focus of a new educational and heritage facility at doncaster sheffield airport, but was given notice to quit in august 2022, with a final occupancy date of june 2023. this was coincidental with the announcement of the commercial failure and...
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d73c171cd252aa6ad6b479bceb6b13436e617ec7
various options to continue flights beyond 2015 were
various options to continue flights beyond 2015 were considered and ultimately rejected for engineering, cost, practicality or other reasons outside of the trust's control – limiting the hours flown in 2015, building new olympus engines and sourcing parts from other vulcans, training new staff, using other technical au...
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997d9b1a7465e9a8212ac6cd5d90578119b1c3a4
on 15 may 2015 it was announced that
on 15 may 2015 it was announced that 2015 would be xh558's last flying season, due to the fact the three companies assisting the project with technical expertise (bae systems, marshall aerospace and defence group and rolls-royce) were unwilling to support the aircraft beyond that, meaning it would no longer have the ne...
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