Descent - Electronics International UBG-16 Operating Instructions Manual

6. 6. 6. 6. 6.

Descent:

Descent: Descent: Descent: Descent:
During descent, the air gets heavier and the engine will run leaner. The manifold pressure will increase one
inch for each thousand feet of descent. During descent, enrichen the mixture to maintain proper EGTs and
gradually decrease the throttle to maintain proper Manifold Pressure. Attempt to maintain the same EGTs as
during cruise.
If you significantly reduce throttle and enrichen the mixture, a shock cooling problem could occur. Some
engines are prone to shock cooling, while it is rare in others. Be certain the shock cooling rate does not
exceed 30'F per minute.
If the High and Low Limits have been set properly, the UBG will automatically diagnose your engine during
descent. If a problem occurs, a red External Warning Light will alert you to that problem.
The versatility of the UBG's 34 programmable limits and its 1'F resolution makes the UBG the most
sophisticated engine diagnostics tool you can buy for your aircraft. It is capable of detecting dozens of
common engine problems. Setting the proper limits and personalizing the UBG for your engine is in your
hands.
23