The Pilatus is certificated to use beta in the descent. In beta, an 80 degree nose down attitude will result in appx. 120 KIAS.
The Twin Otter is not certificated for a similar setup. Using 140-155 KIAS and flight idle in the descent will get you down from 14000 in 3 minutes.
A King Air B90 uses 180 KIAS and flight idle and also will descend from 14K in about 3.5 minutes.
You will sometimes see guys roll twin otters and king airs to show off, but they are not certificated for that and it doesn't get you gown that much faster - besides being stupid and illegal.
It's funny to see guys bust their b$lls trying to see how fast they come down, only to have to wait for a few minutes with the engines running for the jumpers to board.
The Twin Otter is not certificated for a similar setup. Using 140-155 KIAS and flight idle in the descent will get you down from 14000 in 3 minutes.
A King Air B90 uses 180 KIAS and flight idle and also will descend from 14K in about 3.5 minutes.
You will sometimes see guys roll twin otters and king airs to show off, but they are not certificated for that and it doesn't get you gown that much faster - besides being stupid and illegal.
It's funny to see guys bust their b$lls trying to see how fast they come down, only to have to wait for a few minutes with the engines running for the jumpers to board.