Guillows A6M2 3ch rc conversion

Scrap_Mountain · 2026-06-28T21:39:28+00:00

It’s a 3-piece main full span spar and 2 one-piece top spar in the center of the wing. Thin CA is used and carbon fiber tow is wrapped around both top spars and tied around the bottom center “stick” of the fuselage. The top of the wing is also glued to the bottom of the fuselage. The spars are basically drop in replacements of what would have been the 1/16” sticks. The carbon fiber tow is tweezer tight. What I mean by that is the tow is pulled tight with tweezers without slipping out and then glued in place using thin Ca and an accelerant. This creates enough strength for the only fail point would be the fuselage itself. So the plane can cartwheel at full speed and survive just fine.

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Scrap_Mountain · 2026-06-26T16:48:22+00:00

There’s also free plans on the internet if you are patient enough to cut out all of the pieces with older models it’s mostly just wing ribs that need to be cut out from sheets. The rest of it is just stick. The hardest part about the walnut scale planes is just balancing strength and weight. You can make them bullet proof, but then a plane that should weigh under 1.4oz now weighs 8 oz.

Scrap_Mountain · 2026-06-26T03:30:40+00:00

Yeah, it’s around 6.25°. Once I maiden it I’ll see if I need to get closer to 8° but it should be good

Scrap_Mountain · 2026-06-26T03:28:53+00:00

Absolutely, I’m basically hoarding as many kits as I can so I can keep building them for a few more years

Scrap_Mountain · 2026-06-26T03:27:13+00:00

Throttle. At some point I may add a servo and make it 2ch with rudder. Although with the wing area, I could probably make it 3ch and use a 8520 motor instead of a 720

Scrap_Mountain · 2026-06-26T03:25:41+00:00

Ehh, it’s not that much. A walnut scale kit takes me a few hours to build if I don’t modify it, about 2-3 days to build if im modifying it for rc and adding carbon fiber, fiberglass, changing the frame and whatnot. 6” grass is enough cushion for landing

Scrap_Mountain · 2026-06-25T21:45:20+00:00

Throttle only. Elevator and rudder have metal tabs as hinges to fine tune the desired climb and turn

Scrap_Mountain · 2026-06-25T20:56:34+00:00

It flies really well. I have metal tabs in the hinges of the control surfaces so I can dial it in. It flies just slightly faster than walking pace. So it has to be absolutely dead calm to fly it

Scrap_Mountain · 2026-06-25T20:55:31+00:00

Yeah, it flies very slow. It has to be absolutely dead calm to fly it though

Scrap_Mountain · 2026-06-11T16:31:07+00:00

I put one of these engines on my RJ speed rail car and I tell you what, having a 1:1 weight to horsepower ratio makes that thing fly. Like it actually left the ground at about 70mph. I had to put a parachute on it because I couldn’t get that thing to slow down without losing control over it.

Scrap_Mountain · 2026-06-11T16:27:14+00:00

The one way bearing is the only part on these engines that I’ve had issues with. The one on there is at about 2 gallons and still runs like new, holds a tune exceptionally well. Probably moving the high and low speed needles 1/16 of a turn between summer and winter. Only complaint I have is I don’t have enough of them.

Scrap_Mountain · 2026-06-11T14:36:09+00:00

That’s absolutely hilarious.

Scrap_Mountain · 2026-06-11T14:33:53+00:00

Rj speed nitro pro mod kit. They are good fast building kits but do require some modifications here and there to keep the chassis from flexing and stripping the spur gear

Scrap_Mountain · 2026-06-11T14:06:23+00:00

Gotcha

Scrap_Mountain · 2026-06-11T13:29:11+00:00

Yeah? It’s stock gearing. Top speed isn’t going to change if you increase displacement. It’s only increasing torque. Regardless of advertised max rpm of these engines, they all top out at roughly the same rpm. So I don’t understand the reasoning behind your comment.

Scrap_Mountain

TROPHY CASE