posted on Oct, 24 2016 @ 07:03 PM
originally posted by: justwanttofly
a reply to: Zaphod58
Metroliners are notorious for handling engine failures on takeoff poorly. Wouldn't be surprised if that's what happened and the crew let it get away
This particular SA227 still had the Garrett TPE331 engines which are notoriously unreliable, so much so that a switch was made to Pratts on newer
Swearingens. N577MX was a 1983 model. there have been 10 prior engine failure related Metro accidents, not counting Malta. The early version of the
Metroliner, the 226, was such a pig that the builder offered an optional rocket assist (in the tail) to help takeoff performance, particularly in the
case of an engine failure.
The worse engine to have fail was the left. the increased pitch necessary to fly or climb means that the descending propeller blade has more angle
of attack, and more thrust than the rising blade. The descending blade on the right (operating) engine is farther from the centerline, and has a
bigger moment arm. So with a left engine failure, if you let the speed drop below minimum single engine control speed (Vmc), which if memory serves is
91 knots (105 mph), it's going to roll over and be uncontrollable.