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v3.22.1

Significant accounting policies - Going concern (Details) | 12 Months Ended
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Dec. 31, 2021
Significant accounting policies |
Projected funding period of cash and cash equivalents held | 12 months

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- Definition The projected period during which the group's cash and cash equivalents are expected to be sufficient to fund its activities, from the date of approval of the financial statements. + References No definition available. + Details
Name: | evtl_ProjectedFundingPeriodOfCashAndCashEquivalentsHeld
Namespace Prefix: | evtl_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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