PPRuNe Forums - View Single Post - Commonsense attitude to Carburettor Icing
Old 1st Sep 2017, 15:08
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Clare Prop
 
Join Date: Oct 2005
Location: Australia
Posts: 1,318
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It is up to the operator if they want to add things like brakes off to pre-landing checks. It's quite another to ignore the POH and just lazy to adopt a one size fits all instead of reading the POH for different types.

POH for Tomahawk and Warrior state in section 4:


APPROACH AND ANDING
Carburetor heat should not be applied unless there is an indication of carburettor icing, since the use of carburetor heat causes a reduction in power which may be critical in case of a go-around. Full throttle operation with carburettor heat on can cause detonation.


Section 4 of POH for C152 states:
BEFORE LANDING
1. Seats, Belts, Harnesses -- ADJUST and LOCK.
2. Mixture -- RICH.
3. Carburetor Heat -- ON (apply full heat before reducing power).

AFTER LANDING
1. Wing Flaps -- UP.
2. Carburetor Heat -- COLD.

BALKED LANDING
1. Throttle -- FULL OPEN.
2. Carburetor Heat - COLD.
3. Wing Flaps -- RETRACT to 20°.
4. Airspeed -- 55 KIAS.
5. Wing Flaps -- RETRACT (slowly).


So, similar to the "in case of a go-around" reasoning that people give for opening cowl flaps on final, where for example C182 POH says to open them for a baulked landing; it shows that people are just parroting rather than learning.
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