Toyota Hydrogen

[Robert Atkinson 2Participant @robertatkinson2]

Posted by duncan webster on 15/06/2023 13:58:11:

So if cars can have hard valve seats fitted to cope with unleaded why not puddle jumpers?

Paperwork.

Doing the modification is easy. Proving it hasn't reduced reliability and safety is another thing altogether. It is not helped by the fact that these are typically 60 year old designs and the currrent design certificate holders have little or no incentive to support the change.

Robert.

[John Doe 2Participant @johndoe2]

Yes. Aircraft certification is cubicly expensive. Which is one reason why some aircraft have very old instrumentation, and manual engine controls, e.g. air fuel mixture etc.

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