Unicom—September 2024

Aviation Safety

Thursday, August 29, 2024 at 04:14 AM ET

Verified

Edited By: Omar Filipovic

Key Takeaways:

The article advocates for Lean of Peak (LOP) EGT cooling, explaining that LOP cools engines efficiently with air (post-peak EGT) while maintaining power, though balanced engine mixture distribution is necessary for smooth operation.
It discusses the historical and policy-driven debate surrounding the terms "crash" and "accident" for transportation events, highlighting how terminology has been used to shift blame or emphasize causality.
The editor uses the NTSB's definition of "accident" but ultimately considers the distinction between "crash" and "accident" less important than reducing the frequency of such unfortunate events.

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Hover Mode Cooling

Having long been a lean of peak (LOP) exhaust gas temperature (EGT) advocate (25 years), I think some further explanation to Andrew Strauss and some of your other readers about that form of mixture control might be in order (Unicom, August 2024).

First of all, not everyone has mixture distribution that is well balanced enough between all their engine’s cylinders to run lean of peak with smooth engine operation. If they do, then it should definitely help.