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Our intent is to provide the serious giant scale warbird enthusiast with a set of lightweight yet highly reliable and rugged pneumatic retracts. Not only are they up to the task of handling abuse but they also provide the scale purist with the proper outline and all the proper angles from front and side views without costing a small fortune. In most cases the upper units were designed by Darrel with the struts designed by Roy. Have a look and we think you will agree that we will have the most “Robust Retracts” on the market today. If you don’t see something that suits your needs, give Darrell at Sierra a call. |
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Designed completely by Roy Vaillancourt specifically for the Vailly Aviation 90" FW-190. Strut length is 12-1/2 from axle to trunion pivot. These are 74-degree retraction units that weigh 1.4 lbs each and will fit between 1-3/4 wide mounting bearers. |
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Designed by Roy and Darrel specifically for the Vailly Aviation 90" FW-190. This unit is activated by a 5/8 dia air cylinder. It is configured to retract vertical to simulate the full size ship. Weight is 5.25 oz. This unit accepts up to a 3.00 dia wheel. (not provided) It is steered by pull-pull cables. |
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| Designed specifically for the Vailly Aviation 97 " Typhoon. Strut length is 10.00 from axle to trunion pivot. These are 96-degree retraction units that weigh 1.5 lbs each and will fit between 1-7/8 wide mounting bearers. |
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Designed specifically to fit the Vailly Aviation 92” P-47.
These units will also fit Nick Ziroli’s 92” P-47. Strut length is 10.00 from axle to trunion pivot in the down position.These are 85-degree retraction units that weigh 1.6 lbs each and will fit between 1-7/8 wide mounting bearers. They accept 5.50 or 6.00 dia. wheels. Our units are the only units on the market today to incorporate (as an option) the scale shrink- bar actuation of the full size ship. The shrink-bar shortens the strut .50 inches during the retraction cycle. The view at left shows the scale strut that includes the scale scissors and fork and the optional functioning scale shrink–bar. |
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| Designed specifically for the Vailly Aviation 92 " Hurricane. Strut length is 7-1/2 from axle to trunion pivot. These units weigh .8 lbs each and will fit between 1-1/ 4 wide mounting bearers. These are 95-degree retraction units and the strut also rotates 15 degrees to allow the wheel to lay flat within the wheel well when fully retracted. |
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Designed by Roy Vaillancourt specifically for the Vailly Aviation 96" Tempest and 90" Sea Fury.
Strut length is 10.00 from axle to trunion pivot. Weight is 1.7 lbs each with scale struts. These are 96-degree retraction units that will fit between 1-7/8 wide mounting bearers. They accept 5.50 dia wheels.
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This unit, designed completely by Roy Vaillancourt, can be activated either by a 180 degree retract servo or an air cylinder. It can be configured to retract forward or rearward. Weight is 2.0 oz. It may be steered by pushrod or pull-pull cables. (both steering arms are provided) Will fit P-47, Typhoon/Tempest/ |
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This unit weighs weighs .6 oz and can be mounted to our retraction unit as shown or it may be mounted to other brands of retraction mechanisms.
This unit mounts on 5/32 wire and accepts a 2.50 dia wheel. (not provided) Fits P-47 or other similar warbirds | ||||||||||||||||||||||||||||||||||
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This unit weighs 2.2 oz and can be mounted to the retraction unit shown below or it may be mounted to other brands of retraction mechanisms.
This unit mounts on 5/32 wire and accepts a 2.50 dia wheel. (not provided) Designed completely by Roy Vaillancourt specifcally for the Typhoon /Tempest /Sea Fury |
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| Assembled Tailwheel unit and wheel and Retraction Mechanism shown in the extended (down) position. | Assembled Tailwheel unit and wheel and Retraction Mechanism shown in the retracted (up) position. |
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