Climb Speeds; Go Around Climb; Cruise; Optimum Cruise Performance - Cessna 150 1969 Owner's Manual

CLIMB SPEEDS .
Normal climbs are conducted a t 75 to 80 MPH wi th flaps up and full
throttle, for best engine cooling. The mixture should be full rich unless
the engine is r ough due t o too rich a m ixture . The best rate-of-climb
speeds range from 73 MPH at sea level to 65 MPH a t 10, 000 feet.
If
an
obstruction dic ta tes the use of a s teep climb angle , c limb at 64 MPH with
flaps r e tracted.
NOTE
Steep climbs at th ese low speeds s hould be of short
duration to allow impr oved engi ne cooli ng.
GO - AROUND CLIMB .
In a balked landing (go-around) climb, the wing flap setting should
be reduced to 20° immediately after full powe r is applied. Upon r each-
ing a safe a irspeed, the fla ps should be slowly retracted L o Lhe full up
position.
CRUISE.
Normal c ruising is done betwee n 65% and 75% power. The power
settings r equired to obla in t hese powers at va rious a ltitudes a nd outs ide
air temperatur es can be determined by using your Cessna P ower Com-
puter or the OPERATIONAL DATA, Section V.
Cruising can be done mos t effic iently at high altitude because of lowe r
a ir density and therefore higher true a irs peeds for the same powe r. This
is illus trated in the following ta ble which shows perf ormanc e at 75% power
at various a ltitudes.
OPTIMUM CRUISE PERFORMANCE
ALTHUDE
Sea Level
5000 feet
7000 fee t
RPM
*
2525
*
2650
*
Full Throttle
-----------*75%
POWER
2-1 0
TRUE AIRSPEED
110
11 5
117