Free flight discus glider trimming, featuring Polly C
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- Опубліковано 6 вер 2021
- Polly C kit: jhaerospace.com/product/polly...
Dethermalizer products: jhaerospace.com/product-categ...
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Instagram / joshuawfinn - Наука та технологія
Very fascinating I love watching it glide through the air. Thank you!!!
What a nice relaxing video :) Nice to see the adjustments you made to get the launch, transition and flight. It's well filmed too, with the wide and zoomed in views.
Yes I agree with you, great Adjustments
always at the top of his game,,, God luv ya and so do we😎
Thanks!
These launches are unbelievable! I want to try this so bad
Thank you Josh and Hope great video I got a little bit more understanding of trimming a glider.
Lets talk about your camera woman. Incredibly knowledgeable, and very much into enjoying your hobby with you!
Absolutely! She is an awesome builder and flier in her own right. I am *very* blessed.
These videos help me to relax my restless soul===✈
I love it, it's nice to be able to see how you set up that transition. Thanks for sharing!
DLG’s are superb 💫🎉👍👍👍❤️❤️
Beautiful glide. Very instructive video. 👍👍
Buenisimo que bien vuela👍👍
I saw you on F1d indoor free flight making video
Sos un genio colega 👏
great hobby - excellent video
Got 'o mighty Friday, that sure does signal lift! I saw that wiggle on the last flight. Looking for a good razor plane and building one......don't want to sand that much!
Bruce Kimball is your man for the best razor planes ever. I believe Hope put the details on our website last week.
As for signaling lift, it HUNTS lift. Beat 4 former national champions this weekend before I screwed up the DT rigging and lost it. Absolutely unbelievable performance from this bird. It uses a slightly thicker airfoil which makes it float like crazy too.
@@joshuawfinn roger that on BK. Sure can't wait to build one!
Reminds me of the old Sleek Streak rubber powered model from years ago!
nice flat glide
Nice flying! Very insructive as to launch and transition. The elliptical shape tip was considered the best for many years, now sweepette or triangular tip is favored. Is there evidence supporting this or is it only fashion?
That's a really good question. From an aerodynamic perspective there's no denying that the Sweepette platform is superior in efficiency. That said, my experience continues to show that the old elliptical shape is far more forgiving on launch and allows confidence to throw at 110% because you know for sure that the plane will make the most of it. We also compared this plane to several others at a contest this weekend and it hunted lift the best of any plane out there and showed a dead air sink rate competitive with the other models.
nice
Josh, this glider and video is great! 👍😊 Where do I find the RDT?
Here ya go, and enjoy!
bmks.co.uk/
Thinking of purchasing a poly c. Please share how much your poly weighs? Thanks.
Mine have all been 90-95g with RDT and tracker and independent batteries.
Now were talking.....free flight dlg......
and why arent you ever adding a motor, you know you wouldnt have to chase and pick it up as much, just saying
. i dont know why I watch your videos, its mostly listening to you explain what your doing cus its very interesting listening to someone bright as there in there element. but my mind just over focuses on the soar's u demo would scream with an overhead 50mm EDF. a few energy drinks and we might get u motivated lol. one thought i been wanting to comment to you is that you like the elliptical foil and winglets have you ever put the winglets in a swept back fashion, so they start after the point of CG, seems like that might benifit from even less drag
I do actually have several very fast racers and sailplanes, haven't shown all of them here. Not a big fan of edfs...not exactly efficient so if you wanna go fast, it's back to direct drive with APC or Koch props. As for winglets...a lot of these birds are freeflight so we're balancing both stability and performance. I've found that swept wings in general can have some pretty nasty stall characteristics so they must be approached with particular caution. The forward elliptical sweep of the model in this video was purely for the sake of forgiving launches, but head to head against a swept wing it showed no loss of glide performance.
... I've seen a lot of your vids. and realize for me that "real", satisfying outdoor gliding (... here at 14:00Min. ...) is only possible from a wingspan up of approx. 80 cm ...
It appears that the weight of the material and the outdoor conditions limits the smaller spans in terms of gliding.
Ich habe viele deiner Vids. gesehen und für mich erkannt, dass "echter", befriedigender Outdoor-Segelflug
(... hier bei etwa 14:00 Min. ...) erst ab einer Spannweite von ca. 80 cm möglich ist ...
Es scheint, dass das Gewicht des Materials und die Außenbedingungen die kleineren Spannweiten in Bezug auf das Gleiten einschränken.
You can get very good flights from sub-80 cm planes but I find bigger ones much easier to launch and much less sensitive to minor imperfections.
Question, you are right handed. So you are going to curve launch it towards left. Why trim the airplane into a right turn instead of a natural left turn?
This is an interesting question and the best answer is that gliders in general do best gliding in opposite direction to the climb. So for a right handed catapult, you'll climb right and glide left. Indoors is different, at least in low ceiling, where it's much easier to climb and glide the same direction.
Never use sandpaper to make a grip to launch..
50launches later your skin is gone, trust me😉 been there
I put in 50-100 launches per session. Still got all my skin.
@@joshuawfinn strange. Sandpaper does what its made for, sanding stuff down. I had an rc Alula bird design, originaly with sandpaper... ruined my finger completely
Thinking of purchasing a poly c. Please share how much your poly weighs? Thanks.
Mine are all in the 90-95g range with RDT and tracking beacon.