Darkwing theducksmailATyahoo.com wrote:
Don't typically find a lot of need for flaps on the ol' 172 on TO.
Especially in "high altitude" operations. REF: C172N, 1978 POH,
page 4-11. Where it says to lean when operating in high altitudes
above 3000 MSL. Then in the flap operations paragraph it says that
it is OK to use 10 degrees of flaps for takeoff, but not during high
altitude operations, because the aircraft "may" not be able to
climb. Remember, the POH is written by lawyers, for lawyers, and
specifically states that one of the performance conditions is "at
maximum gross weight". So, since I was taught to always use 10
degrees of flaps for takeoff in the C172... I loaded her up to max
gross weight and tested this. They are right! I will NEVER use any
flaps for takeoff in a C172 (160hp or less) when above 3000' MSL or
density altitude.
Remember, that I (now) regularily operate 145hp, 150hp and 160hp
C172s for training from Leadville, CO (LXV, 9927 MSL, 6400' length)
and Glenwood Springs, CO (GWS, 5916 MSL, 3300' length). I am well
pre-disposed to fly by the POH!
Best regards,
Jer/ "Flight instruction/mountain flying are my vocation!" Eberhard
--
Jer/ (Slash) Eberhard, Mountain Flying Aviation, LTD, Ft Collins, CO
CELL 970 231-6325 EMAIL jeratfrii.com
http://users.frii.com/jer/
C-206 N9513G, CFII Airplane&Glider FAA-DEN Aviation Safety Counselor
CAP-CO Mission&Aircraft CheckPilot BM218 HAM N0FZD 235 Young Eagles!