3D-Delta, 3d epp KF delta jet, *VIDEO* *PLANS* - Page 41 - RC Groups
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Mar 26, 2017, 04:00 AM
Kit Manufacturer
coreman's Avatar
Quote:
Originally Posted by Captain Dunsel
The wire came in yesterday, and it doesn't seem to have any coating.

I won't start building the foam cutting tools until I finish the plane now on my workbench. Then, I plan to do some test cuts before I start on a small (~ 288 sq. inch) model (which I haven't even begun to draw, yet).

Regarding the little delta, it's still unflown due to weather (mainly wind).

CD
BTW, the wire cuts just as well with AC as DC power. I use a router speed control for my big (6') bow and generally place a piece of foam on the wire and let it cut with it's own weight. I find that 1/4" per second works well for most cutting
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Mar 27, 2017, 06:30 PM
Registered User
We had a short break in the wind and wet weather, so Micki and I scooted out to the field and snuck in a test flight of the little delta. I balanced it ahead of Leadfeather's design CG, to make it a bit less responsive, then I set the elevons at about 20 degrees.

Turned out the 20 degrees wasn't needed! Even with the CG well forward, I had to crank in all the available down trim AND throttle back to avoid climbing. Rolls were pretty quick (as you'd expect). Of course, the wind picked up after launch, but the good side was when I throttled back at about 2' altitude, held back stick, and the plane gently settled, level, to the grass.

It was too windy after that first flight, so I decided not to fly it again. Since I had another charged battery with me, Micki flew one of Jim's little EPP 22" Yaks (which did much better in the wind!).

CD
Mar 28, 2017, 09:24 AM
Kit Manufacturer
coreman's Avatar
Quote:
Originally Posted by Captain Dunsel
It was too windy after that first flight, so I decided not to fly it again. Since I had another charged battery with me, Micki flew one of Jim's little EPP 22" Yaks (which did much better in the wind!).

CD
people look at the Mini Yak55 and think indoors only but I've flown it very successfully outdoors even in 10mph wind. It really is a nice in your yard flyer during the outdoor months
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Mar 28, 2017, 07:32 PM
Registered User
Honestly, the 22" Yak flies better in the wind that the bigger one.

CD
Mar 29, 2017, 07:06 AM
Kit Manufacturer
coreman's Avatar
Quote:
Originally Posted by Captain Dunsel
Honestly, the 22" Yak flies better in the wind that the bigger one.

CD
Interesting. I had always felt they were pretty similar
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Dec 06, 2017, 11:25 AM
Registered User
Could this plane be successfully made using DTF?
Yesterday, 09:25 AM
Winging it >
leadfeather's Avatar
Quote:
Originally Posted by RCH2016
Could this plane be successfully made using DTF?
Sure, a DTF build would work fine and in fact a few options:

1) Super light build, DTF foam with paper stripped off, tape leading edge only, lighter motor/esc/servos/etc. would be a great indoor model.

2) Regular build, DTF foam paper off, packaging tape covering over all foam, follow the plans for all else.

3) Quick build, DTF foam with paper, follow the plans, tape the leading edges a bit heavier but very quick to build. The 3D Delta handles weight exceptionally well, you'll just go through the battery faster.

Best of luck with your build!


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