I've been fascinated by Rogallo wings since my kite flying days. Nicely done, Josh!

brotherly love and model rockets with dad. god bless you all

LUV rocket booooooster gliders! 😱😝😁🤪🤣👍👍🇺🇲

I love that fraternal hug at the end ❤🙂

Most impresive!

Lovely, simply lovely

@joshuawfinn

9 ай бұрын

Thank you. A really satisfying project. :)

I did that in the early 70s with an Estes rocket that I stuck a model Gemini capsule on. It was one of the ways Gemini was supposed to be able to land. It looked better in Popular Science, but after a few flights it worked repeatedly. Now I want to do it with servos to steer. Thank you for giving me something to do.

@babbagebrassworks4278

Жыл бұрын

Yep and that's why I got into electronics in the 70's, to make RF transmitters so I could track the ones that flew out of sight.

Great fun these. The floaty glide on the first one is extraordinary, such retention of altitude. I bet if this one got caught in a donut thermal in high Summer you'd not get it back. Nice one Finn Family! 🌟👍

Wow! Look at that float! Totally enjoyed the flights. Nice camera work too! Loved the "countdown" :)

@joshuawfinn

Жыл бұрын

Definitely one of the most enjoyable gliders I've tried. Hard to keep them on the field though!

Excellent flight time 👍👍

Awesome. Thank you for sharing

What a cool idea! Love your concepts👍

I had NAR #9100, and competed at the Nationals at Wallops Island , Virginia, in...was it 1966? Would have won the boost-glider competition, except I wasn't able to retreive my Estes glider, as it climbed up to a layer of air blowing out toward the ocean, which broke it out of the 150 ft. circle I had it trimmed to. The world record at the time was 27 minutes... with binoculars, we watched mine disappear out over the water, at maybe 1000 ft. altitude, at 41 minutes after launch. The only thing to do was to wave it good-bye. No one else was even close. I did come in at 5th place in the Egg-Lofting event, and brought home a trophy for winning the Spot-Landing event. Great fun...flew at the Nationals the year after at the Air Force Academy, in Colorado Springs...no trophys there though...;)

@joshuawfinn

Жыл бұрын

Now THAT is an epic flight. Too bad it wasn't possible to retrieve. Would be awesome to have that in the record books.

It's fantastic! Amazing it does so well! The first hang glider!

so cool

Great going!

Loved it! :)

Enjoyed very,thanks.

Nice catch! 3:35. Fantastic glide ratio.

Fun flights! Curious what the Rogallo wing loading actually is--lots of area, very little structure!

Nice!

Great fun!

Very nice :)

you need to put some wadding in there first! it will prevent burns and make a better plug to push it out.

@joshuawfinn

Жыл бұрын

There was wadding, a very limited amount, because the ejection change is very weak and even with the black powder boost charge I used its extremely difficult to get a successful ejection. My first micro flexi died because I didn't fully understand how marginal those charges are.

nice

Hay Josh ... will there be Plans on your web page to make the flex wing for a small rocket like you did ?

Is there a chance we might see a kit of this??

@joshuawfinn

Жыл бұрын

Yeah it's coming. Just gotta work out details on commercially produced springs.

Kit of this please! I can't wait. Should the lifter be a mini-engined rocket or a full size 18mm rocket?

@joshuawfinn

Жыл бұрын

Working on it. I think I finally have a source for off the shelf springs. 13mm motors in an 18mm tube seems to be about the optimum ratio of altitude to ease of use. 18mm flexies are very hard to recover because of how high they launch.

Excuse me,how to make it? I try to make it as yours,but my glider don’t fly like yours. You are so good.

Way Rad

Fantastic! The hug at the end is just what a pilot wants after a successful flight. How big a motor would I need to launch my 70 gram Thermic 36?

@theoztreecrasher2647

Жыл бұрын

More importantly - how big a rocket would we need to launch our local politician? 😜😁

@joshuawfinn

Жыл бұрын

Thermic 36 would need a long burn motor like a D2.3, and some VERY careful trimming unless it's RC. Local politicians will need about an N or O to loft them to a reasonable height. Q or R if you want them far enough away to never return.

@kenkingsflyingmachines2382

Жыл бұрын

@@joshuawfinn I was being sarcastic, but it seems like you've given the politician question some thought! 😀

@joshuawfinn

Жыл бұрын

@@kenkingsflyingmachines2382 the best sarcasm is served with practical satire! 😀

Itu sangat keren 👍👍👍👍👍

Very cool glider. How is it trimmed for best glide ? Perhaps a small piece of tape on one or more corners ?

@joshuawfinn

Жыл бұрын

I used tiny bits of clay to balance. Tape causes a lot of problems.

That seems logical. I guess that rules out contest usage.

@joshuawfinn

8 ай бұрын

You can configure a tethered weight to swing forward and make the plane dive to the ground after a preset flight time, or with current technology, use radio activation of said mechanism. The catch is that flexies are limited to their own class because they have such a drastic performance advantage over conventional planes.

@DocHavana

8 ай бұрын

That makes perfect sense. Common sense should prevail in establishing contest rules. @@joshuawfinn

How does the glider pop out?

素晴らしい

Go BIGGER maybe R/C

Woooow ! Absolutely wonderful. A joy to watch ...... (｡◕‿◕｡)

Using 1/2A motors?

@joshuawfinn

Жыл бұрын

Quest Micromaxx, or 1/8A for NAR purposes

Hummmm........ I wonder what would happen if this project was enlarged for an E-engine?

@joshuawfinn

9 ай бұрын

It's been done. The biggest problem is getting it back because of the incredibly low sink rate.

I built one of these back in 1980 or so. One launch and lost it. Never built another. The nose cone flexed down for stability.

Did you almost step on a snake at :46?

@joshuawfinn

Жыл бұрын

After going back and looking, no, just another stick the boys threw in the driveway. As for actual snakes, look at the trees and color of the grass. No snakes out.

Can it fly with either side up?

Couldn't you put two servos on that flex wing, one at each side, to draw in the left side, or right, slightly, giving you directional control?

@s4dg

Жыл бұрын

one servo placed correctly could do that as well. it would definitely need to be made larger since it would need to also have a battery and receiver. with good conditions you could glide for a very long time that way, good idea!

@DetroitMicroSound

Жыл бұрын

@@s4dg Thanks! Imagine a larger scale version, with a camera, and full control! One servo would work, placed on the keel, but I feel two servos twinned on the keel, could just provide for much finer, and independent adjustment of wing shape. I imagine, a person could catch some thermals in the right places, and fly for an hour, or more......

well, not good.