Tag: avionics

Helpers. By David Boeshaar.

Flight testing for longitudinal stability problems continues this month as columnist Barnaby Wainfan details tests for stick force as related to trim and stick-free stability of an aircraft. The object is to gather data and analyze it to see if the hypotheses about the nature of the problem hold up under scrutiny.

Gray oil is good, but what about black oil that looks like tar?

OK, I’ll admit it. Back in the fifth grade my parents gave me a...