Post by cjg on Jan 30, 2007 4:25:42 GMT 1
I used Dubro skiis for park flyers. Mounting them and getting them to move correctly (or rather not move too much) was kind of a trial and error thing. Here are the few tips I did:
1) fill the bottom mounting cavity about half full of epoxy. Once it is hard, drill the hole for the axle.
2) Bend the spring so that it will hook on the landing strut and hold the ski in the proper angle.
3) I used nylon bolts glued to the landing axle as spacers.
4) I had to put the portion of the spring that pushes against the ski through a piece of plastic antenna tube or it tended to puncture the plastic ski. I glued the antenna tube to the ski so that the whole ski won't tilt up too far in flight and form an "air dam." You can't see the plastic tube in this picture, it was added later after trial and error in flight.
The SC took off nicely in powder snow. Landing was trickier, about 2/3 of the time it nosed over and after a time filled the nose with snow. I've since put screen over the air holes to prevent snow from packing in:
1) fill the bottom mounting cavity about half full of epoxy. Once it is hard, drill the hole for the axle.
2) Bend the spring so that it will hook on the landing strut and hold the ski in the proper angle.
3) I used nylon bolts glued to the landing axle as spacers.
4) I had to put the portion of the spring that pushes against the ski through a piece of plastic antenna tube or it tended to puncture the plastic ski. I glued the antenna tube to the ski so that the whole ski won't tilt up too far in flight and form an "air dam." You can't see the plastic tube in this picture, it was added later after trial and error in flight.
The SC took off nicely in powder snow. Landing was trickier, about 2/3 of the time it nosed over and after a time filled the nose with snow. I've since put screen over the air holes to prevent snow from packing in:
