Airspeed

TM 1-1510-225-MTF PROCEDURE TROUBLESHOOTING REFERENCE (b) Flaps - APPROACH. Check flaps for freedom and smooth- ness of operation and for exces- sive aircraft roll. (c) Airspeed - Reduce to 157 KIAS. (d) Flaps - 100%. Check flaps for freedom and smoothness of operation and for excessive air- craft roll. * (e) Flap extension and retraction time - Check as follows: (1) Airspeed - 157 KIAS. * (2) Flaps - UP, check and record retraction time. Full down to full up maximum time - 9 seconds. (3) Airspeed - 157 KIAS. *(4) Flaps - Down, check and record extension time. Full up to full down maximum time - 13 seconds. NOTE Ensure that stall warning horn sounds within the speed range specified in the Warning Speed col- umn of figure 2. *2. Stall speed, stall warning, and stall characteristics (clean, power off) - Check as follows: C34-35 (a) Gear - UP. (b) Flaps - UP. (c) Power - IDLE. (d) Trim aircraft to trim speed as shown in figure 2. 2-51