RE: TF P-40 Build Thread
Now just for fun, I hooked up the tank and the valve to the retracts...
[link=http://www.rcuvideos.com/view_video.php?viewkey=909020c28b26ca3a13cb]Sierra 60-size rotating retracts[/link]
These are the Sierra retracts that give us an alternative to the Robart 615's. Notice how the wheels are already fully rotated after about 30-35 degrees of retraction (way before they are fully retracted). It's not scale operation, but their robustness is worth that sacrifice.
Josh