David-aviator
Well Known Member
Today I went out and shot 3 no flap approaches and landings to full stop. To say the least, compared to using 40 flaps, it is dicey, like more work.
Final target airspeed was 70 knots but it was difficult to maintain, especially if turning in at 80 and high relative to slot. If above the slot (using VASI) forget it, the airplane will not slow to 70. Best technique was to turn final low and at 70 knots and add power if needed.
Each touch down was estimated to be 60 knots. My machine stalls at 56 clean, was near it holding it off trying to find the runway. Distance down the runway varied with approach speed. Longest roll out was about 2000'. Once on the concrete the machine was much more sensitive than with 40 flaps, I had my hands and feet busy keeping it straight, even after tail wheel down and at full aft stick. The aircraft does not decelerate like with the flaps so the work load time envelope is longer than usual keeping it straight.
All landings were full stop.
On the 4th landing went to 40 flaps. What a difference, control was ok but getting it slowed to tail down and back wheel steering came much quicker. The whole operation was easier.
Retracting flaps on roll out? I don't do it. Probably a hold over from flying retractable gear airplanes, don't be moving anything until the clear of runway. Also, retracting flaps will decrease drag and increase roll out and or require more braking.
Just my 2 cents worth and it may not be worth that much....I do enjoy flying the RV-8.
Final target airspeed was 70 knots but it was difficult to maintain, especially if turning in at 80 and high relative to slot. If above the slot (using VASI) forget it, the airplane will not slow to 70. Best technique was to turn final low and at 70 knots and add power if needed.
Each touch down was estimated to be 60 knots. My machine stalls at 56 clean, was near it holding it off trying to find the runway. Distance down the runway varied with approach speed. Longest roll out was about 2000'. Once on the concrete the machine was much more sensitive than with 40 flaps, I had my hands and feet busy keeping it straight, even after tail wheel down and at full aft stick. The aircraft does not decelerate like with the flaps so the work load time envelope is longer than usual keeping it straight.
All landings were full stop.
On the 4th landing went to 40 flaps. What a difference, control was ok but getting it slowed to tail down and back wheel steering came much quicker. The whole operation was easier.
Retracting flaps on roll out? I don't do it. Probably a hold over from flying retractable gear airplanes, don't be moving anything until the clear of runway. Also, retracting flaps will decrease drag and increase roll out and or require more braking.
Just my 2 cents worth and it may not be worth that much....I do enjoy flying the RV-8.