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.
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! 🌟👍
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...;)
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.
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.
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.
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.
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!
@@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......
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.
I've been fascinated by Rogallo wings since my kite flying days. Nicely done, Josh!
I love that fraternal hug at the end ❤🙂
Most impresive!
LUV rocket booooooster gliders! 😱😝😁🤪🤣👍👍🇺🇲
Lovely, simply lovely
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.
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! 🌟👍
Nice catch! 3:35. Fantastic glide ratio.
Awesome. Thank you for sharing
Wow! Look at that float! Totally enjoyed the flights. Nice camera work too! Loved the "countdown" :)
Definitely one of the most enjoyable gliders I've tried. Hard to keep them on the field though!
It's fantastic! Amazing it does so well! The first hang glider!
What a cool idea! Love your concepts👍
Excellent flight time 👍👍
How does the glider pop out?
Great going!
Fun flights! Curious what the Rogallo wing loading actually is--lots of area, very little structure!
Masha ALLAH Subhan ALLAH Jazak ALLAH Khair.
Is there a chance we might see a kit of this??
Yeah it's coming. Just gotta work out details on commercially produced springs.
Enjoyed very,thanks.
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...;)
Now THAT is an epic flight. Too bad it wasn't possible to retrieve. Would be awesome to have that in the record books.
you need to put some wadding in there first! it will prevent burns and make a better plug to push it out.
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.
Kit of this please! I can't wait. Should the lifter be a mini-engined rocket or a full size 18mm rocket?
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.
so cool
Very cool glider. How is it trimmed for best glide ? Perhaps a small piece of tape on one or more corners ?
I used tiny bits of clay to balance. Tape causes a lot of problems.
Itu sangat keren 👍👍👍👍👍
Hay Josh ... will there be Plans on your web page to make the flex wing for a small rocket like you did ?
Loved it! :)
Great fun!
Fortunate kids!
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?
More importantly - how big a rocket would we need to launch our local politician? 😜😁
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.
@@joshuawfinn I was being sarcastic, but it seems like you've given the politician question some thought!
😀
@@kenkingsflyingmachines2382 the best sarcasm is served with practical satire! 😀
That seems logical. I guess that rules out contest usage.
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.
That makes perfect sense. Common sense should prevail in establishing contest rules. @@joshuawfinn
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.
nice
Nice!
Using 1/2A motors?
Quest Micromaxx, or 1/8A for NAR purposes
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?
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!
@@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......
Very nice :)
Hummmm........ I wonder what would happen if this project was enlarged for an E-engine?
It's been done. The biggest problem is getting it back because of the incredibly low sink rate.
Did you almost step on a snake at :46?
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.
素晴らしい
Woooow !
Absolutely wonderful.
A joy to watch ...... (｡◕‿◕｡)
Go BIGGER maybe R/C
Can it fly with either side up?
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.
Way Rad
well, not good.