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Other operating income - Government grants (Details) - GBP (£) £ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
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Other operating income |  |
Government grants receivable | £ 5,415 | £ 1,989

X
- Definition Government grants receivable + References No definition available. + Details
Name: | evtl_GovernmentGrantsReceivable
Namespace Prefix: | evtl_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition No definition available + References No definition available. + Details
Name: | evtl_OtherOperatingIncomeAbstract
Namespace Prefix: | evtl_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration