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Looney11 · 01-04-18, 04:14 AM

During my time in the surface fleet, back emergency was only allowed to be called by the CO.

Normally, the axle would rotate at 80rpm at minimum and with pitch control of the blades, you'd get your propulsion from changing pitch in those conditions where the 80rpm and little pitch was enough for you. When exceeding these limitations, the axle rpm would be increased to max 200 or so.

When ordering back emergency, the pitch of the blades would be rotated to their reciprocal pitch leading to immense pressure on the screw blades, we didn't reverse the axle spinning direction.

01-04-18, 04:14 AM	#13
Looney11 Watch Join Date: Aug 2004 Location: Netherlands Posts: 23 Downloads: 14 Uploads: 0	During my time in the surface fleet, back emergency was only allowed to be called by the CO. Normally, the axle would rotate at 80rpm at minimum and with pitch control of the blades, you'd get your propulsion from changing pitch in those conditions where the 80rpm and little pitch was enough for you. When exceeding these limitations, the axle rpm would be increased to max 200 or so. When ordering back emergency, the pitch of the blades would be rotated to their reciprocal pitch leading to immense pressure on the screw blades, we didn't reverse the axle spinning direction. __________________ Those who aim at nothing, will most certainly hit that!