Hi all.
I have a quick question for all the Instructors out there. In a New C172SP with a fuel injected and 'closely cowled' engine, is there still a requirement to warm the engine on descent? Cessna suggests that it's not required.
- If it was matter of a carby engine then of course this should be done.
- If a matter of CHT, then at what temp should it be done? (we used 105 degrees C in the CT-4B).
- If it's matter of clearing the plugs, then surely a run up to 1800rpm and straight back to idle again will achieve little, other than upsetting the students glide?
- I have also heard of some suggesting that they only run up the engine periodically on descent to ensure that the engine is still running? I can understand that, but it only needs a slight throttle advance to achieve that goal.
I would welcome your experience on the matter.
Cheers