In article , Gunner says...

Just finished Rickenbackers book about his flying Spads etc in WW1. He
mentioned 15-20,000 feet. Seemed a bit high for no O2..but he did say
it.

Need to put the engines on O2 as well - I think none of
the ww1 vintage aircraft had turbochargers - that was
probably the limiting factor for useable altitude.

Jim

==================================================
please reply to:
JRR(zero) at yktvmv (dot) vnet (dot) ibm (dot) com
==================================================