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Search: Posts Made By: Shawn Coyle
Showing results 1 to 13 of 13
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Forum: Rotorheads
19th Sep 2014, 00:38
Replies: 488
Views: 180,958
Posted By Shawn Coyle

The difference in maximum speed with only one...

The difference in maximum speed with only one AFCS operational is due to pilot intervention time if an AFCS runaway happens. With two systems working, if one fails (let's say a roll actuator suddenly...
Forum: Rotorheads
29th Oct 2006, 14:16
Replies: 488
Views: 180,958
Posted By Shawn Coyle

The Chinook is a relatively old design - remember...

The Chinook is a relatively old design - remember it started with metal blades and a maximum weight of much less than it has now.
There have been significant, incremental improvements in the...
Forum: Rotorheads
28th Oct 2006, 00:54
Replies: 488
Views: 180,958
Posted By Shawn Coyle

A couple of points - The whole Chinook flight...

A couple of points -
The whole Chinook flight control system is very complex. There is collective and lateral tilt on the swashplates, but no fore-aft tilt through the mechanical flight controls....
Forum: Rotorheads
26th Oct 2006, 22:05
Replies: 488
Views: 180,958
Posted By Shawn Coyle

Dave: The Chinook is primarily used by the...

Dave:
The Chinook is primarily used by the military. It has had some commercial uses - as a passenger machine for British Helicopters and then an Alaskan operator. These were used for longer...
Forum: Rotorheads
28th Apr 2006, 13:27
Replies: 488
Views: 180,958
Posted By Shawn Coyle

Essentially, the tandem design is nearly immune...

Essentially, the tandem design is nearly immune to wind direction. At light weight, there is so much power that it's easy to take care of a downwind approach and any performance aspects it may have. ...
Forum: Rotorheads
16th Aug 2004, 20:37
Replies: 488
Views: 180,958
Posted By Shawn Coyle

I asked some folks at Boeing Philadelphia about...

I asked some folks at Boeing Philadelphia about this.
Evidently it was a scrap fuselage and rotor blades that were being prepared for being shot at anyway.
The normal flight departments (production...
Forum: Rotorheads
30th Apr 2004, 14:26
Replies: 488
Views: 180,958
Posted By Shawn Coyle

I would predict that M. Laflamme is going to have...

I would predict that M. Laflamme is going to have severe directional control problems with his machine.
Way too much side area head of the front rotor, not much behind the rear one.
There is a very...
Forum: Rotorheads
28th Apr 2004, 13:55
Replies: 488
Views: 180,958
Posted By Shawn Coyle

Both the CH-47 and CH-46 have duplex AFCS which...

Both the CH-47 and CH-46 have duplex AFCS which means that it is an emergency situation to have both fail. Hence, you probably wouldn't spend much time taking off with them both off.
The AFCSs are...
Forum: Rotorheads
27th Apr 2004, 14:15
Replies: 488
Views: 180,958
Posted By Shawn Coyle

Sorry - forgot to comment on the 'picking up to...

Sorry - forgot to comment on the 'picking up to the hover' question.
There is no need for the pilot to move the pedals when lifting to the hover, for two reasons -
a) the AFCS keeps the heading...
Forum: Rotorheads
26th Apr 2004, 13:57
Replies: 488
Views: 180,958
Posted By Shawn Coyle

Longitudinal control is through a combination of...

Longitudinal control is through a combination of differential collective and tilting of the main rotor heads by the Automatic Flight Control System.
One of the features (and probably a reason why...
Forum: Rotorheads
5th Feb 2004, 22:19
Replies: 488
Views: 180,958
Posted By Shawn Coyle

wizard of oz: Doesn't the Australian Army...

wizard of oz:
Doesn't the Australian Army operate Chinooks too?
Forum: Rotorheads
5th Feb 2004, 03:06
Replies: 488
Views: 180,958
Posted By Shawn Coyle

The CH-46 and CH-47 families have had a very...

The CH-46 and CH-47 families have had a very interesting history of AFCS' (whatever Boeing wanted to call them, they eventually are all an Automatic system of some sort).
The latest version is...
Forum: Rotorheads
3rd Feb 2004, 22:06
Replies: 488
Views: 180,958
Posted By Shawn Coyle

The Chinook, and it's smaller brother, the CH-46...

The Chinook, and it's smaller brother, the CH-46 are helped immensely by a very capable automatic flight control system that provides attitude hold. Basically, when you have the attitude you want and...
Showing results 1 to 13 of 13


 
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