Originally Posted by
RENURPP
On the ground I suspect the Turbo commander and/or most turbo props with Garrett’s. However they are pretty quiet once they get going.
The QueenAir or the Aero Commander with the GTSIO640’s (I think that’s correct) would have to be right up there. Mind you I haven’t seen one of them flying for a few years now.
Concur with the comments regarding the Commander.
I remember living south of Essendon airport in the late eighties and being woken up by the southbound freighters. Often the Ipec DC9 and the Grand Commander from HBA would launch several minutes apart. The 9 would make an awful noise for about 20 seconds as it sped past but the Grand would be overhead for what seemed like hours, climbing out at 80 knots into a stiff southerly!!! Almost as noisy as the 9 but it lasted for ever.