Use of Carby-heat
Hi everyone.
Alsthough this is my first post, I have watched and learned for some months now from you all.
My question to you all is this...
Some people teach that Carby heat should be used turning base on reduction of power, regardless of the weather conditions on the day. Whilst, in initial training, I have no problem with this, I think that in due course the student should be taught when Carby icing is likely to form and to use c-heat as required...not by habit!
Many of these instructors also teach that carby heat should be selected FULL COLD AFTER touchdown. When I was taught to fly, as a "late final" check, we would select carby heat to cold PRIOR to touchdown. To me this makes sense for a number of reasons....
(a) The lower you get to the ground, the more likely you are to pick up dirt etc. and do the pistons damage if you still have carby heat hot.
(b) The later a go-around is initiated, the more you want to have full power. The use of carby heat, as you all know, detracts from full performance.
So.......... when do you select Carby heat cold?