Lycoming recommends not exceeding 400F CHT for continuous operations and Mike Bush, recommends not exceeding 400F CHT, period. Max cooling rate should also not exceed 50F per minute.
Well, no matter how hard I try, seems I cannot always respect those limits; especially when doing circuits.
On first takeoff, after warm-up and run up, I will get temperature on no 3 cylinder reaching 415 to 430F. This with reduced throttle and decreased angle of climb (faster speed) (90-110KT).
While I seem OK to control cooling rate on descent and landing, I cannot get much less than 55F/min doing circuits, after climb and when turning downwind.
Interestingly, i can keep CHT lower than 400F when climbing doing circuits, but the rate of ascent is not what I was dreaming about with a RV.
Any tricks? Opinion?
Well, no matter how hard I try, seems I cannot always respect those limits; especially when doing circuits.
On first takeoff, after warm-up and run up, I will get temperature on no 3 cylinder reaching 415 to 430F. This with reduced throttle and decreased angle of climb (faster speed) (90-110KT).
While I seem OK to control cooling rate on descent and landing, I cannot get much less than 55F/min doing circuits, after climb and when turning downwind.
Interestingly, i can keep CHT lower than 400F when climbing doing circuits, but the rate of ascent is not what I was dreaming about with a RV.
Any tricks? Opinion?