Airbox Temperature for 912uls
in 912 / 914 Technical Questions
13 years ago
For the 912uls, the airbox temperature is supposed to not exceed some 24 deg C with a redline about 30 deg C. For my cowled engine, the airbox temp is usually about 9 to 14 deg above OAT depending on whether the day is cold or hot. This seems not too much of a rise for a close cowled engine but means on a warm day of 25 deg C the airbox temp being about 33-34 deg C is above the redlined temp. Fortunately on hot day here of near 30 deg the airbox temp is usually not extra high being 38 to 39 deg, but this is well above the redline. BTW these are airbox temps for near ground and up higher they drop with the OAT decrease.
Are these airbox temperatures a serious problem? The engine is well cooled and CHTs and oil temps are always within limits.
Also, why does the 912uls have these limits when other engines including the 912s are not as restrictive?
Many thanks to all who can advise me on this ....
Douglas N
Are these airbox temperatures a serious problem? The engine is well cooled and CHTs and oil temps are always within limits.
Also, why does the 912uls have these limits when other engines including the 912s are not as restrictive?
Many thanks to all who can advise me on this ....
Douglas N
