J&H Aerospace kits

[Maxout]

I reckon it's time to do the same thing Frank has done with his kit series. So to get started off, there are new things available. I've just completed development of a tiny 6" Windlance and a larger B/C sized one, so now there is a complete lineup of canard boost gliders for your contest and sport flying needs for 1/8A-D power:

After Bernard Cawley's unfortunate crash at NARAM this year, I redesigned the fuselage to eliminate the weak spot over the wing where flutter was propagating. Multiple piston launches have failed to generate in flight failures of any kind even with intentionally too light balsa, so I'm considering that flaw to be eliminated.


Micro Windlance:
https://jhaerospace.com/product/micro-win...st-glider/

Mini Windlance:
https://jhaerospace.com/product/mini-wind...st-glider/

Windlance B/C:
https://jhaerospace.com/product/windlance...st-glider/

Windlance D:
https://jhaerospace.com/product/windlance...st-glider/

I'll be doing the same thing with the Aleda series very soon. We're also hard at work on a new S4A design that should have excellent performance.

 

[Maxout]

I don't offer a kit for this, but it's still a fun little idea that's definitely the ultimate in minimalist rocket gliders:

 

[burkefj]

I really like that one...

 

[BEC]

Yeah, I agree. That little MicroMaxx wing is cool.

By the way, Josh sent me one of the revised Mini Windlances after my unfortunate shred-on-boost-from-a-piston at NARAM-60. The changes sure look like they will solve the issue and I know Josh has tested severely .

 

[Amsterdam]

Flew the mini windlance today on a 1/2a3t. Seriously rock solid kit.

 

[Maxout]

By the way, Josh sent me one of the revised Mini Windlances after my unfortunate shred-on-boost-from-a-piston at NARAM-60. The changes sure look like they will solve the issue and I know Josh has tested severely .

I've definitely tried hard to make then shred and they didn't.

Flew the mini windlance today on a 1/2a3t. Seriously rock solid kit.

Awesome! I love hearing about people enjoying boost gliders. The more the merrier!

 

[Maxout]

I demoed the Carbonette 19 at a local electric fly in a couple weeks ago. Nice bubbly air made for several really fun flying sessions.

 

[Maxout]

I upscaled the folding rocket glider big time:

 

[TheTellurian]

I love the rocket wing. You should do a build thread.


Richard

 

[Maxout]

I love the rocket wing. You should do a build thread.


Richard

I keep getting that request. Guess I'm gonna have to honor it.

 

[Maxout]

Latest installment in crazy: I built an R/C rocket glider from Flite Test foamboard (and Apogee tubes)!

 

[burkefj]

yeah, your pusher thrustline is high, so you have to run some up trim effectively for level flight and when you chop the throttle the nose will pitch up, you can adjust thrust angle, or put some trim on a switch and have a landing mode....I've done both. Personally I hate the flite test brown foam board, I hate using hot glue and not much else sticks to it including paint, my forays into using it for my designs was a disaster.

 

[Maxout]

yeah, your pusher thrustline is high, so you have to run some up trim effectively for level flight and when you chop the throttle the nose will pitch up, you can adjust thrust angle, or put some trim on a switch and have a landing mode....I've done both. Personally I hate the flite test brown foam board, I hate using hot glue and not much else sticks to it including paint, my forays into using it for my designs was a disaster.

Yeah I prefer depron as well, but I wanted to draw in the Flite Test community, plus the stuff actually works really well with Uhu Por (by the way, your kits do too!).

What surprised me was that under rocket power, it's really, really docile. Trying to glide in tight spaces at dusk, however, was every bit as hard as I feared it would be. Fortunately only damage was a bend in the tip of that crazy soft balsa nose.

 

[burkefj]

I used to use POR a long time ago when I did profiles then switched to 3m-77 since por is not great for very large surface laminating. I never used it for main butt joints or tube fillets....What is your launch weight for this? Any reason you didn't want to do the thrust line in the main tube or was it just to allow the ejection to blow out the front I assume?

For kits the brown board and balsa cones require painting and thus weight, if you want it to look good, but the board is a lot stiffer without carbon and more hangar rash friendly.

 

[Crawf56]

Would be curious to see how the model performs without the V-tail and the fake engines (adding an upright rudder). Granted, it would then look a lot like the Dynasoar Aurora Clipper, but the weight reduction and the removal of the relatively 'flat' V-tail might improve control performance.

Or perhaps twin offset rudders, like a F7U Cutlass: https://en.wikipedia.org/wiki/Vought_F7U_Cutlass

 

[Maxout]

I added a little sub fin on the underside of the tail and that dramatically improved the handling. I venture to guess that's a rather "scale" modification since this aircraft would probably require that modification were it actually built as a full scale aircraft. Also, E6 motors are awesome!

 

[burkefj]

Thats great. Btw, you have a nice long rail, I'd move your standoff down and take advantage of it, the flame is short, and it can be 1.5-2' off the ground and not have issues.

 

[Crawf56]

Congrats on the flights! Nothing like that feeling of finally getting a model sorted out to fly right.

 

[Maxout]

Thanks guys.

Now for my next shenanigan: Hope and I worked up this idea of building a reliable glider from a single 4x12 sheet of 1/16" balsa. It was successful, and I decided to launch it on a rocket, but if you're gonna do that, might as well do it right, and make it repeatable for others. I shredded the first one, but managed to prove that you can get nice flights from some 1/16" scraps and no sanding. The launch is much straighter and higher than Hope or I ever expected. Also, I successfully stuck a fin in the exhaust stream and got it to survive--twice!

Links to plans and such are in the video description. I hope to get more details up eventually, but there's enough data provided to be able to build the whole setup without having to send me money (and I'll happily clear up any confusion free of charge because this isn't about making money).

 

[Maxout]

For me, it all started with with Sky Slash II. So I figure I should pass that along to the next generation. Here goes!

 

[Maxout]

Here's a build tutorial I did for the Sky Slash II. Stay tuned for entertaining crashes with the full sized one thanks to my epic stupid levels.

 

[Maxout]

Whelp, no contest sanction, but hey, at least I caught it on video. Enjoy a little fun at my expense (and the free plans in the video description. )

 

[burkefj]

I mean that flies pretty good even with a red baron, without is great....

 

[Crawf56]

Great flight. Two questions:

1. What "clay weight" do you use?
2. How do you set up your free flight rocket gliders to circle so well?

 

[Maxout]

Great flight. Two questions:

1. What "clay weight" do you use?
2. How do you set up your free flight rocket gliders to circle so well?

I just use plasticine. I do, however, prefer to use lead, and in the case of that model, that's what's on there.

I follow a policy of trimming all my gliders in the old hand launch free flight school of trimming. There are several videos on my channel detailing examples of this process, but the bottom line is left rudder, left inner panel washin, just enough stab incidence for a positive pull-out from dives, and left stab tilt as necessary to tune the glide circle. In the case of some of my really fast-launching boost gliders, I actually trim on a catapult so that they'll slide right off the pod and hold their speed for as long as possible instead of looping.