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Scott, Walter, anyone,
hypothetical scenario with estimated
values:
Flying at 15000' going east, WOT, 2400 RPM,
14.5-15.5 GPH, 220 to 230 kts ground speed with 30 kt tailwind; EGT @ 1260, CHT
@330. Fuel computer says 900 nm of gas left, 1000 nm to go, takes about
1hr to land, fuel, and get back up in the air.
To make the trip without landing, lower RPM
to 2100, begin aggressive leaning, engine sputters @ 9 GPH, enrich to 10 GPH,
EGT's go up to 1300, CHT's to 350, GS ~ 190-195 kts with same tailwind. Now fuel
computer says 1200 nm left, 1000 to go, have fuel margin and do not have to
land.
Am I hurting my engine with the aggressive
leaning??
Eugene Long
Lancair Super ES
glong2@netzero.net
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