During type training on the Bell 206 the other day, we were reviewing the Flight Manual instruction that an in flight relight/restart not be attempted above 12000'. So I asked the obvious, can you attempt a start on the ground at that altitude? If the engine is stopped, it does not know if it is stopped on the ground, or in flight!
The instructor did not have an answer, perhaps one will emerge here....
I had this exact situation when preparing an OEM engine manual - and had quite a time convincing a ground-bound design engineer that his numbers were illogical! But I refused to issue a chart with contradictory airstart vs ground start altitudes.
I've always felt it important for any user finding such contradictions to squawk them to the OEM, and require a logical answer.
