RCU Forums
Left aileron hinged and temporarily placed on torque rod. It'll all get put back together after covering.
Left aileron hinged and temporarily placed on torque rod. It'll all get put back together after covering.
0 2022/06/29 13:53:30
Note that the torque rod arms are perpendicular to the wing bottom and the servo arms are 90 degrees to each other and face forward.
Note that the torque rod arms are perpendicular to the wing bottom and the servo arms are 90 degrees to each other and face forward.
0 2022/06/30 14:42:01
Here's the maximum downward deflection . . .
Here's the maximum downward deflection . . .
0 2022/06/30 14:45:11
and the up. About twice as much up as down. (The wing is upside down.)
and the up. About twice as much up as down. (The wing is upside down.)
0 2022/06/30 14:46:38
Lateral angle measured on stabilizer plate.
Lateral angle measured on stabilizer plate.
0 2022/07/01 08:52:46
Wing lateral angle. I think a difference of 0.1 degree is acceptable. I only lightly sanded the wing seat.
Wing lateral angle. I think a difference of 0.1 degree is acceptable. I only lightly sanded the wing seat.
0 2022/07/01 08:55:09
I thought briefly about using 1/4" nylon bolts instead of the steel bolts and blind nuts supplied. However, with the scant width of fuselage plates, I though the larger holes might weaken them unacceptably.
I thought briefly about using 1/4" nylon bolts instead of the steel bolts and blind nuts supplied. However, with the scant width of fuselage plates, I though the larger holes might weaken them unacceptably.
0 2022/07/01 09:00:01
Using a long 1/4" bit, I drilled through the fuselage and glued in the appropriate length stick.
Using a long 1/4" bit, I drilled through the fuselage and glued in the appropriate length stick.
0 2022/07/01 09:09:21
A large cut-off wheel made the perfect size slot.
A large cut-off wheel made the perfect size slot.
0 2022/07/01 09:14:10
Tail wheel mount in place; to be permanently affixed later.
Tail wheel mount in place; to be permanently affixed later.
0 2022/07/01 09:16:05
I also considered replacing the kit pushrods with more modern versions. Then I remembered how long my Eagle 63 flew without any control problems. Here, I have bent the aft wires to the shape on the plans.
I also considered replacing the kit pushrods with more modern versions. Then I remembered how long my Eagle 63 flew without any control problems. Here, I have bent the aft wires to the shape on the plans.
0 2022/07/01 09:26:05
Here, the tip of the 3/8" square bass rod has been drilled, grooved, and sanded, ready for wire insertion and fastening.
Here, the tip of the 3/8" square bass rod has been drilled, grooved, and sanded, ready for wire insertion and fastening.
0 2022/07/01 09:36:04
The pushrod end is finished: glued in, wrapped with carpet thread, and glued again.
The pushrod end is finished: glued in, wrapped with carpet thread, and glued again.
0 2022/07/01 09:38:06
Both pushrods finished.
Both pushrods finished.
0 2022/07/01 09:40:15
I don't particularly care for control horns that bolt directly through balsa. After awhile, they tend to loosen as the balsa compresses under load. So, I try to add plywood plates where the control horns fasten and use self-tapping screws that do not protrude through to the other side. Here, I was chiseling a recess at the base of the rudder . . .
I don't particularly care for control horns that bolt directly through balsa. After awhile, they tend to loosen as the balsa compresses under load. So, I try to add plywood plates where the control horns fasten and use self-tapping screws that do not protrude through to the other side. Here, I was chiseling a recess at the base of the rudder . . .
0 2022/07/01 09:43:14
into which I epoxied this plywood plate.
into which I epoxied this plywood plate.
0 2022/07/01 09:48:21
I did the same for one elevator half.
I did the same for one elevator half.
0 2022/07/01 09:50:11
Using my newly acquired grooving skills, I carved 1/4" diameter recesses into the leading edges of both elevator halves. Once I had epoxied the joiner dowel, I positioned it against the horizontal stabilizer and weighted everything down.
Using my newly acquired grooving skills, I carved 1/4" diameter recesses into the leading edges of both elevator halves. Once I had epoxied the joiner dowel, I positioned it against the horizontal stabilizer and weighted everything down.
0 2022/07/01 09:53:02
Even with a narrow cut-off wheel on a 90-degree adapter . . .
Even with a narrow cut-off wheel on a 90-degree adapter . . .
0 2022/07/08 09:18:35
I couldn't salvage the cut-out to use a the hatch cover.
I couldn't salvage the cut-out to use a the hatch cover.
0 2022/07/08 09:22:16
Next up, a floor for the battery. Here you can see a cardboard pattern snugly fitting between the forward fuselage sides.
Next up, a floor for the battery. Here you can see a cardboard pattern snugly fitting between the forward fuselage sides.
0 2022/07/08 09:23:48
Here we have cardboard patterns for both the battery floor and the hatch cover. Note the subtle curves and notches in the floor necessary for a good fit.
Here we have cardboard patterns for both the battery floor and the hatch cover. Note the subtle curves and notches in the floor necessary for a good fit.
0 2022/07/08 09:26:01
I found a large piece of 1/16" ply in the scrap pile onto which I traced the floor pattern. Then, it was off to the scroll saw.
I found a large piece of 1/16" ply in the scrap pile onto which I traced the floor pattern. Then, it was off to the scroll saw.
0 2022/07/08 09:28:41
After a few passes on the disc sander, the plywood floor snapped into place.
After a few passes on the disc sander, the plywood floor snapped into place.
0 2022/07/08 09:31:21
I got the floor ready for installation by attaching all the Velcro. Much easier to do before the floor gets permanently glued in.
I got the floor ready for installation by attaching all the Velcro. Much easier to do before the floor gets permanently glued in.
0 2022/07/08 09:33:25
Here the floor is glued in and reinforced with balsa tri stock.
Here the floor is glued in and reinforced with balsa tri stock.
0 2022/07/08 09:36:00
Now that the floor was in place,
Now that the floor was in place,
0 2022/07/08 09:37:44
Now that the battery floor was in place, it was time to fabricate a hatch. Using scraps and some magnets from my stash, this is what I ended up with. Pretty ugly, huh?
Now that the battery floor was in place, it was time to fabricate a hatch. Using scraps and some magnets from my stash, this is what I ended up with. Pretty ugly, huh?
0 2022/07/08 09:38:55
But, this doesn't look so bad. Covering will minimize the small gaps.
But, this doesn't look so bad. Covering will minimize the small gaps.
0 2022/07/08 09:41:11
Here I'm using a multi-tool with a sanding head to make the first pass.
Here I'm using a multi-tool with a sanding head to make the first pass.
0 2022/07/09 12:30:42
I followed with a sanding bar to achieve this bevel. Hinging followed.
I followed with a sanding bar to achieve this bevel. Hinging followed.
0 2022/07/09 12:32:44
Here the elevator has been hinged. I used the same process as outlined in
Here the elevator has been hinged. I used the same process as outlined in
0 2022/07/09 12:36:15
I made up servo rails from double layers of 1/8" ply left over from the kit. The first one went in where indicated on the plans; the second was located by the servos I used.
I made up servo rails from double layers of 1/8" ply left over from the kit. The first one went in where indicated on the plans; the second was located by the servos I used.
0 2022/07/09 12:42:05
Here, the second rail and the servos are screwed down. I connected the front end of the pushrods with . . .
Here, the second rail and the servos are screwed down. I connected the front end of the pushrods with . . .
0 2022/07/09 12:45:57
zee bends.
zee bends.
0 2022/07/09 12:48:13
I immobilized the elevator and rudder in neutral positions before attaching clevises to control horns, then ran the servos through their range of motions to insure that there was no interference between the pushrods.
I immobilized the elevator and rudder in neutral positions before attaching clevises to control horns, then ran the servos through their range of motions to insure that there was no interference between the pushrods.
0 2022/07/09 12:50:45
Unfortunately, while checking pushrod interference I forget that the control surfaces themselves might be clashing. Here's the result.
Unfortunately, while checking pushrod interference I forget that the control surfaces themselves might be clashing. Here's the result.
0 2022/07/09 12:54:31
Fortunately, it was a clean break, easily repaired. And, yes, I have used my radio to tame the servo travel, hopefully eliminating further interference.
Fortunately, it was a clean break, easily repaired. And, yes, I have used my radio to tame the servo travel, hopefully eliminating further interference.
0 2022/07/09 12:57:49
Here's the shelf.
Here's the shelf.
0 2022/07/10 11:36:31
Here's the shelf fastened to the side rails with #2 hardware.
Here's the shelf fastened to the side rails with #2 hardware.
0 2022/07/10 11:37:36
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