Fly Lah!

Just wondering about piston engine aircraft operation in Malaysia, is carburettor heat used as described in books from UK?
Don't seem to see it being used or stressed it's use in Malaysia...

not really,because most of the modern engine using fuel injection....not really prone to icing.

Yes, fuel injected engines don't have carb heat.
I was refering to those that do have carb heat...
My friends who learned to fly say they never use it (except during run-up checks).
From what I know, it should be used as a precaution whenever engine will be on prolonged idle during flight.

When I started my flying in down-under, I was taught to do the carb check before take-off ,turn on the carb during descent and put it back off 300 feet before landing.
Properly due to the weather and climate over here,your friends wasn't been taught by his instructor whom may think not really important.
But the most important thing still ,have to put carb heat on during pro-long descend!

I was thinking that most people think icing might not occur in M'sia due to generally warm temperature.
BUT I think carb icing is more prone here, because of high humidity! Nothing to do with ambient temperature. Temperature in the carburettor can be low enough to cause icing because of high humidity.
I think most flight instructors here don't really stress use of carb heat, from what I gather talking to some student pilots...

The icing in the carb has got nothing to do with the weather!
It is due to the temperature drop related to the increase of pressure drop (increase fuel/air when throttle setting is increased) across the carb venturi.

yes indeed,torx.Thanks for the correction!It is the temperature ,not the weather!
Maybe they were more concern about their old planes performance... Perhaps, Shunmway you should ask ur friend's instructor.

Erm, that depends. Maybe "weather" is too general...
But would you agree that carb icing is more prone in M'sia due to it's higher "humidity" level?

Of course, humidity is a contributing factor.

So would you say that M'sian humidity can cause more possibility for carb icing?