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Active load Control

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Active load Control

Old 12th Apr 2010, 20:20
  #1 (permalink)  
Thread Starter
Join Date: Jul 2006
Location: Sunny Wilts!
Posts: 59
Active load Control

Fellow PPruners,

Could I trouble you to ask what 'Active Load Control' is? It is meant in the context of flying controls, rather that the movers at Lye! (bait prepared)

My initial thought steered me towards the VC-10?

Any help here would be appreciated. I have searched the web, however, it does not throw much up that makes sense.

Many thanks
cheesedoff is offline  
Old 12th Apr 2010, 20:42
  #2 (permalink)  
Join Date: Mar 2000
Location: UK (and now rarely behind enemy lines but still enjoying foreign climes.)
Posts: 1,362
Hmm, I think you are referring to the 'aileron upset' system (as in ailerons set 'up') which is turned on at certain weights and heights, to control spanwise lift load (and therefore the bending moment of the wing). I don't recall seeing any VC10-specific stuff on the web, but the C5 appears to have had a similar system described here:


Try searching for 'active lift control' or 'active lift distribution control'. The current VC10 lot will be along shortly, I'm sure, to give you the full gen on their system.
MrBernoulli is offline  
Old 12th Apr 2010, 21:47
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Join Date: Aug 2007
Location: Out of the office...
Posts: 16
There is a useful description here of the Active Control System fitted to the Tristar, which I think is the system which you are alluding to. It's about three quarters of the way down this article, complete with some handy pics

TriStar500.net | Features

Hope it helps.
First_In_Last_Out is offline  
Old 12th Apr 2010, 21:58
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Join Date: Mar 2004
Location: Oxfordshire
Age: 51
Posts: 470
The Tristar has it, called Active Control System.

Three lots of accelerometers: one in each wingtip and one in the fuselage.

They detect if the wings are flapping and apply opposite aileron to both wings to counter it.

The system also puts both ailerons up when flaps are lowered past a certain point to dump lift from the wing tips and move the envelope inboard so as not to overload the wing roots.
glum is offline  
Old 13th Apr 2010, 00:08
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Join Date: May 2000
Location: #3117# Ppruner of the Year Nominee 2005
Posts: 11,225
In a commercial sense, Active Load Control is when it doesn't TRIM with 10 mins to go. That's when you see a lot of activity & some harsh language too!
Buster Hyman is offline  

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