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Search: Posts Made By: Old Fella
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Forum: Tech Log
1st Apr 2012, 10:03
Replies: 156
Views: 90,891
Posted By Old Fella

RPM & Torque

rudderrudderrat, the Allison T56 is essentially a constant speed engine/gearbox/propeller installation with propeller blade angle selectable only in the 'ground' range of throttle lever travel...
Forum: Tech Log
1st Apr 2012, 02:08
Replies: 156
Views: 90,891
Posted By Old Fella

Limiting MTOW

Barit1, I probably did not articulate my point as well as I might. All I was trying to convey was that the 19600"/lbs limiting torque was often not achievable before reaching the Max permissable...
Forum: Tech Log
31st Mar 2012, 10:14
Replies: 156
Views: 90,891
Posted By Old Fella

Flat Rated

Aerbat77. The Allison is not flat-rated and to clarify my comment on reaching the limiting T.I.T I was simply saying that, especially on the T56A-11 it was common to reach max permissable T.I.T...
Forum: Tech Log
30th Mar 2012, 10:50
Replies: 156
Views: 90,891
Posted By Old Fella

Approved Torque

Aerobat77. The original quesion asked was about the relationship between engine torque and propeller torque. As I am sure you know, the T56 is a constant RPM engine/gearbox/propeller combination. The...
Forum: Tech Log
30th Mar 2012, 03:55
Replies: 156
Views: 90,891
Posted By Old Fella

Engine Torque

Aerobatt77, 13820 Engine RPM which gives 1021 RPM at the Prop via a two-stage reduction gearbox (13.54:1 reduction ratio). The torque meter is mounted between the engine and the input to the gearbox....
Forum: Tech Log
28th Mar 2012, 10:41
Replies: 156
Views: 90,891
Posted By Old Fella

Torque

Obviously GM-Allison don't give a fig about differentiating between Engine Torque and Propeller Torque in the C130. One indication only, Engine Torque, displayed in in/lbs and measured between the...
Showing results 1 to 6 of 6


 
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