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#31
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I'd be able to model it if I had some good dimensions to work from or a launch pad. The air hose looks a lot like sprinkler hose I have seen at Lowes. I also would love to see a model of the MPC launch controller out there for people to print. |
#32
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Unless the sprinkler hose you referred to was quite narrow in diameter (for garden irrigation units, perhaps?), The Servo-Launcher's pneumatic tubing was more like--and may have been--surgical rubber tubing that was black-pigmented to resist UV exposure (RC sailplane Hi-Start catapults often use black surgical rubber tubing as the energy-storing elastic, with a length of monofilament or other non-stretch line that is attached to the glider's tow hook). The Servo-Launcher used two "D" size Photo-Flash batteries, which provide some size comparison with the tubing and the launcher itself (these were high-discharge-rate batteries, but they were the same size as carbon or alkaline "D" batteries). Also: The rocket that is shown on the Servo-Launcher is the Marauder (see: http://www.ninfinger.org/rockets/ca...d/71dcen40.html ), a two-stage Centuri kit that was in production until 1971. It was made using the 0.908" Outside Diameter (ST-8, see: http://www.ninfinger.org/rockets/no...a/72cen058.html ) body tubing, which--along with the blast deflector and "D" batteries shown in the Servo-Launcher photograph--may help in scaling a duplicate Servo-Launcher (it used the 1/8" x 3' launch rod). Plus, here (see: http://www.spacemodeling.org/jimz/kc-45.htm and http://www.spacemodeling.org/jimz/centuri/kc-45.pdf ) are the Marauder kit instructions. I hope this information will be helpful.
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