17,000' is impressive. I wonder if it's the very first time a corvair motor has ever operated at that altitude. "I decided to go all the way to 17,000' and get a climb rate number (and yes, I did have oxygen). For the last 500' (16,500 to 17,000), the average was 230 ft/min, so the service ceiling (which is defined as the highest altitude at which 100 ft/min climb rate can be maintained) is considerably higher than 17,000'. "
- KR> compression check, service ceiling Mark Langford
- KR> compression check, service ceiling ttcse/Tom
