kolibri282
01-21-2012, 01:00 AM
title: Reducing Trailing Edge Flap Deflection Requirements In Primary Control Through A Moveable Horizontal Tail
author: James E. Blum
Achieving primary control of helicopters through the use of trailing edge flaps holds
significant promise in eliminating the swashplate and related controls—a system that
is complex, heavy, a significant source of drag, and subject to demanding maintenance
requirements. However, the predicted deflections that trailing edge flaps serving in
this role must reach to achieve high speed trimmed flight are currently beyond the
stroke and authority of current smart material actuators that could be used. A method
of reducing the required trailing edge flap deflections through fixed frame moments
input via a moveable horizontal tail is developed and demonstrated to significantly
reduce the required trailing edge flap deflections on a UH-60 helicopter.
comment: for some reason the link is qualified as untrusted. I felt this is no problem, but you have to decide for yourself.
https://etda.libraries.psu.edu/paper/8380/3644
author: James E. Blum
Achieving primary control of helicopters through the use of trailing edge flaps holds
significant promise in eliminating the swashplate and related controls—a system that
is complex, heavy, a significant source of drag, and subject to demanding maintenance
requirements. However, the predicted deflections that trailing edge flaps serving in
this role must reach to achieve high speed trimmed flight are currently beyond the
stroke and authority of current smart material actuators that could be used. A method
of reducing the required trailing edge flap deflections through fixed frame moments
input via a moveable horizontal tail is developed and demonstrated to significantly
reduce the required trailing edge flap deflections on a UH-60 helicopter.
comment: for some reason the link is qualified as untrusted. I felt this is no problem, but you have to decide for yourself.
https://etda.libraries.psu.edu/paper/8380/3644