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Dumas Kit #319, Sparrowhawk by John Cooper. Viewed 1251 times.
Build Thread
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| Image Comments |
| John Cooper | 11-Feb-08 23:03 | | The rubber is stretch wound to about 600 turns. Note the balsa wood blast tube to protect the fuselage from a possible break in the rubber. |
| cdwheatley | 12-Feb-08 12:22 | | John, a few questions if I may. What is your stooge made from? Do you fly outdoors too? Do you always use a blast tube, and if so are they always like this one? Nice couple of models in the box on the floor by the way! |
| jgood | 12-Feb-08 12:46 | | Just about to order my first Plantraco. Think I'll go for the carbon butterfly. I take it the 'blast tube' stays in the aircraft permanently? |
| John Cooper | 12-Feb-08 13:21 | | Chris: The stooge is a piece of alluminum bent into a C shape. A clamp holds it onto the bench. I fly outdoors as well and for this, I screw the stooge to the top of a stake that I hammer into the ground. I always use a blast tube (I learnt the hard way) Mine is not typical - it has a door on one side that snaps into place. Thus I can remove the blast tube without taking the rubber off the hook. Most people, however, use a plastic tube. This requires you to have a long wire, with a hook, to hold the rubber and allow the tube to slip off, once it is wound.
James: That blast tube doesn't stay on. It is half the weight of the plane! Good choice with the carbon butterfly. There are several at my club. It is fun to try do carrier landings with it. It is also possible (despite no elevator) to loop it by going into a tight spiral. You pick up speed and straightening out gives you enough lift to loop. |
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