This is an own design model made using an old fibreglass fuselage and some foam veneer wings. The wing cord was much too short to fit the fuselage sides, so I cut a large sweep in the root which lengthened the cord to fit nicely.
toujours excelent pour les yeux. c'est dommage qu'on n'ai pas plus d'infos sur les modeles. plan, ou kit, ou production perso. il y en a quelques uns qui me donnent envie....
Was at Perranporth for Easter with my niece and family - what a lovely part of the world! Didn't get a chance to play with my planes but it looks like you have a few nice flying sites there. I normally fly at the Bwlch (South Wales) but will remember to bring something "Floaty" next time I am there.
Funny. If I think of it as a tailless glider I am flabbergasted, but if I think of it as a flying wing with offset rudder it seems perfectly reasonable.
Nice John,,,.major sweep and dihedral, looks like elevon mix,..I don't see flaps,.....Could we have a contest to guess the wings and fuse originals? Or is that a bad Idea,..wishing the best to all.
I wonder if this sort of shape is the next step for high speed dynamic soaring. At some point, wings will have to be either swept or delta to deal with approaching the speed of sound.
Really cool design, definitly will be an inspiration for an autonomous low power plane project im working on. Ive only got two servo outputs on my chip design and i was debating 3channel or flying wing.. This is a unique middle ground ill have to try
After watching and enjoying so many of John's videos my expectations bar has been set so high. I was hopeful he would stall the wing out and hand catch like the slower birds. Thanks again John! Your the master! Greetings from Canada 🇨🇦
Thank you. Funnily enough I did try and catch it. The wing stalled nicely but instead of flopping down into my hand it went into reverse and tailslid into the ground.
Nice one this is how hang glider fly as the angel of attack increases so more lift is produced at rear of wings. Must have been very stable in flight. I love hang glider s till last year I did it from 1976. Age stops play. Good video.
Her pepersorte.... I also started hand gliding in 1973 in Southern California. Became and instructor and selling Free Flight Systems and Bill Bennet Delta Wing Gliders. I am now 69 years old and had my last hang gliding flight a couple of months ago. It was a beautiful flight but I noticed that I was having difficulty with simply remembering the glider set up sequence and process. I was aware that my memory was getting poor and wife was always having to remind me of things I was supposed to do. So I chose to let my flying carrier end with the beautiful flight. Was hard to give up the activity that was so much a part of my life, but I believe it was the right time and correct decision. Best to you!
@@mikekelsey6777 I know the feeling but for me I have no trouble with memory but site to far away. I had some year with sail planes and now still fly RC glider and have a flight simulator , not for the flying but I love all the dead reckoning, I am now 74,lucky to have a large bhouse boat to live on in the summer. Try to remember you do not stop playing because you get old, you get old because you stop playing. I am lucky at the back of my house boat I have a great 22 foot sail boat that keeps me happy. Oh and my dog Lyra. Keep me going, mate live long. Cheer Pete
@@petethewrist Indeed. I still maintain a good level of fitness with hiking and Mountain Biking in the Ouachita Mountains of Arkansas. I have a 16 foot Hobie Cat that I have not sailed for years. Would love to but it does require a two person crew. Wife no longer willing.
@@mikekelsey6777 my wife stays at home now the kids are grown up she always said she would never stop me doing any of my many hobbies. And fair play she does not. I go home for a couple of days about every six weeks just to maintain the house and things. Still at our age we are both happy doing our own things. Being old is a pain but one I can live with. Best too you and yours. Pete.
The CG is surprisingly far back past the trailing edge. I’ve got the battery as far back as it will go and I still needed to put some lead in the tail.
A German wiki page calls all-wing plus fin/rudder, "Brush-less", as opposed to completely tail-less. Many such planes of various description have worked well. Adding a fin really helps sort out any issues or doubts about cutting away at the fuselage and stabilizer with its down force. See also the 1926 Cheranovshy BICh-3 (with fin/rudder). First flew towed, then as a glider, then with an 18hp engine, though it could stay aloft on 16. BICh-7a was a good 2 seat flitter. Lippisch built the "Delta" series leading up to the Me-163. From the '20s up to right before the war, he worked up to swept wing with a pod for the pilot and engine for a tractor prop, with a fin right behind the prop in the DFS-39(c) and finally made what works. He had designs for a few very similar, larger planes with wheels and a jet or 2, which would have been awesome. See the '30s Kharkov KhAI-3. A 10 seat swept-wing + fin transport. After trim and control issues were worked out, it served as a local transport for a few years. Like many other designers, they tried tailless all-wing, then wing-tip fins which were a little less terrible. Unlike the Hortens, most later Junkers all-wings, and Northrop, many stuck a normal fin/rudder on it and produced good planes, though they were all uniformly ignored by "markets". Canova, Snyder/Hoffman in the Arup, Fauvel, Payen, Moskalyev.
Appreciate itt if u may also have a quick close shot over the airframes before or after flight demos... So that we may appreciate and view these beautiful 😍❤️ 👏 creations of yours sir 😀 I love all your videos , I swear I click like first! 🥇 ! then view ! all your up loads Hehe 😋😊☺️👋😎😅😋
can you help me to design a large scale flying wing airfoil. I contacted so many universities but it seems all out of knowledge and thy do not want to admit it
Kind of. The wings and fuselage are both off old planes. The wing cord wasn’t long enough to fit the fuselage so I cut a sweep at the wing root which lengthened the cord to fit.
The wind is normally good for paragliding but they tend to fly off the dunes above the beach. You can park nearby and land out on the beach if you have to. The dunes are also a lot longer.
Lolol so when did they start making RC Lawn darts? Lolol John, this is off the hook smooth, solid, capable, fast! It also seemed like you could slow it down a lot when you wanted to! The color with the swept wings really look great moving at the rock solid speed you were flying! It appears to fly as if its somewhat heavy? Thanks for sharing with us! This one is certainly a keeper!!
Thank you. I don’t think I was getting the best out of it as it was very light winds. However, it does have one unusual characteristic. If you pull out of a loop too aggressively it will keep rotating round on its own and go into a tail slide. I’m looking forward to trying it out again in a decent wind..
Reminds me of the Regulus 1 and the Snark cruise missiles of the 1950s. With the fuselage length was it trickier to establish the C/G? It's beautiful in the air.
I used an online CG calculator and it’s amazing how far back the CG seems. I had to putt the battery as far back as it would go and it still needed some extra weight in the tail.
Hi John, so is it on elevons with a rudder out on a stick of a fus, it seems to handle really well in those conditions, great design! Think I will build something similar but I'm itching to try a flying wing with split rudders on outer edge like the full-size US Spirit stealth bomber.
What airfoil? And have you ever considered a low low aspect ratio like the Arup or Facetmobile? Betcha you could make one work, and a side benefit would be room for storage of more models!
I’ve no idea what airfoil it has as I used an old set of slightly broken wings a friend gave me. They do have quite a fat section though so I don’t think it will ever be a super fast model.
I think you are wrong. There must be reducing wing incidence towards the tips, this is how pitch stability is achieved. In effect the swept wingtips with a lower angle of incidence act as the horizontal stabiliser. The vertical fin is still required for yaw stability.
@@mitseraffej5812 yes you're actually right, the longitudinal stability should be somehow achieved, by the incidence of the aft of the wing itself or an angle on the ailerons that are quite on the back... you had me 😄 Still I think it provides a better lift ratio than a traditional config 🤔
@@Jean-Chri.Brixhe Did you note my other comment about doing away with the vertical fin? I think the B2 achieves its artificial directional stability by split ailerons that create drag on the wing tip (without any roll) to keep it straight, requiring yaw sensing and automatic activation of the control surfaces. Definitely above my pay grade. I have seen video of a B2 flying model and it flys around with the lower portion of both split aileron deployed. This I think gives it its directional stability because of the wing sweep. The forward going wing in the yaw presents the drooped control surface more flat on to the airflow dragging the plane back straight. Obvious drag penalties.
@@Jean-Chri.Brixhe I fly jet airliners for a living and the company strives to load the aircraft with maximum allowed rear centre of gravity to unload the horizontal stabiliser. This provides both lower fuel burn and better take off and landing performance, all at the expense of stability. Nothing is free in this world.
If you add winglets to that thing, i'll look so much better and probably will fly even better. I have a pusher belt drive swept wing 2m. Flies awesome with winglets.
I worked the CG out using an online calculator. It’s surprising far back beyond the wing trailing edge. I’ve got the flight battery as far back as it will go and I still needed to add some weight to the tail.
I did try it once. It’s will slow down nicely so I pulled up to a stall, but instead of flopping down gently into my hand it went into reverse and tail slid into the ground. Luckily no damage.
