POH FK 14 B
FK Lightplanes
Revision 23
Supplements
page 9-2
document code: FK 14 des.002
Chapter 3 Emergency Procedures:
In case of a propeller governor failure, the blades automatically revert to low
pitch = high RPM. Do not exceed maximum RPM limits.
Chapter 4 Normal Procedures:
Preflight inspection according to the manual Mühlbauer Propeller
Engine start: throttle idle (depending on engine temperature), prop.-
governor forward to takeoff position; after engine run-up cycle the prop.-
governor 3-5 times from full forward to full aft positions to rinse the
system and to check proper operation
Takeoff: prop.-governor full forward = max. RPM
Climb: reduce to 5500 RPM by twisting the prop.-governor to the left
Cruise: reduce to desired RPM (4200
– 5000) by twisting the prop.-
governor to the left
Landing: select prop.-governor full forward (high RPM) when on final to
be prepared in case of a go around
During cruise, select a desired RPM by using the prop.-governor. Power
setting is achieved by setting the desired manifold pressure with constant
RPM.
With the prop.-governor in the full forward position, the blades are in low
pitch and the propeller behaves like a normal fixed propeller without a
constant speed function.
Power setting:
Power is set by manifold pressure and engine RPM. The recommandations
given in the engine manual must be observed. High manifold pressure and
low engine revolutions are bad / dangerous for the engine.
To increase power, first increase RPM before increasing MAP.
To reduce power, first reduce MAP before reducing RPM.
9.6.
Neuform
– Constantspeed Propeller
Chapter 2 Limitations:
A manifold pressure indication must be available. The maximum allowable
RPM must not be exceeded. Check the following table:
Ground
T/O (5min)
climb
cruise
Manifold press.
full throttle
27,5 inch/hg
27 inch/hg
23-26 inch/hg
Engine-RPM
5500
5800
5500
4300-5000