- Joined
- Jan 27, 2009
- Messages
- 4,499
- Reaction score
- 2,978
Been wanting to re-do my profile mig 21 rc rg to use a tube based body and see how it would fly as an rc rg.
I resized a few parts for 2.6" tubing. Wing will be mid mounted through the tube, and the tail surfaces will be full movable surfaces with an aluminum pivot tube and carbon pivot rod. Vertical stab will go through the tube to the bottom inside and the 24mm motor mount will be in the middle of the vertical fin tab on the centerline. I built up a reinforced lower ventral to take the landing abrasion(laminated some styrene inbetween the foam), and built a 1/2" wide pseudo turtledeck/canopy piece.
I used a 2.6" styrene cone from apogee I had, cut it off about 60% of the length, cut and glued in a foam sheet piece to block the nose opening, then cut the tip off of the remaining piece of cone and glued it to the foam sheet. Worked well and came out at 1.6oz for the nose cone, but the wing CG is about 1.5" further forward than my other gliders so I will probably need some nose weight.
Just waiting for the tubing to arrive from bms. Specs, 2.6" diameter, 28" long tube, 21.5" wingspan, 39" long.
Wing area is just over a square foot, so won't have a long glide time, weight I'm hoping will be 12-12.5 with balast.
In the pics I show the pieces and the paper templates to show relative placement...
Frank
I resized a few parts for 2.6" tubing. Wing will be mid mounted through the tube, and the tail surfaces will be full movable surfaces with an aluminum pivot tube and carbon pivot rod. Vertical stab will go through the tube to the bottom inside and the 24mm motor mount will be in the middle of the vertical fin tab on the centerline. I built up a reinforced lower ventral to take the landing abrasion(laminated some styrene inbetween the foam), and built a 1/2" wide pseudo turtledeck/canopy piece.
I used a 2.6" styrene cone from apogee I had, cut it off about 60% of the length, cut and glued in a foam sheet piece to block the nose opening, then cut the tip off of the remaining piece of cone and glued it to the foam sheet. Worked well and came out at 1.6oz for the nose cone, but the wing CG is about 1.5" further forward than my other gliders so I will probably need some nose weight.
Just waiting for the tubing to arrive from bms. Specs, 2.6" diameter, 28" long tube, 21.5" wingspan, 39" long.
Wing area is just over a square foot, so won't have a long glide time, weight I'm hoping will be 12-12.5 with balast.
In the pics I show the pieces and the paper templates to show relative placement...
Frank