A few years ago I saw a piece concerning a 24x18 blended body airfold / Delta, .it was electric powered. It was a build-up wing. I designed and built a 48 x 36 Delta powered with a .25 DBB engine on 15% fuel. 4 channels, ail & elv mixed , throttle, and nose gear steering. Pull the nose up to far and it will start to wobble side to side, push the nose down a bit and it smooths out. Landings can be very slow and very nose high.

Flies beautifully!

Wow...Rubber powered Flying Wing...

I wish I knew voodoo! great flights!

Your eventual trim solutions are counter-intuitive, but work amazingly well. Well done. I never would have thought of it!

WOW! That flight around the 7:50 mark, after you made the mods regarding the prop balance, weights, and trim tab, was outstanding!! What an awesome vintage model. I remember seeing something similar hanging in the hobby shop in Medford, NJ where I used to take building lessons back in the late 70's when I was kid. I don't know if it was the same model type but it was always eye catching. Thanks for the look, great work, and have a great day!

@joshuawfinn

Жыл бұрын

Glad you enjoyed it. A legendary airplane as it turns out...I've gotten many responses from people who have seen the kits, short lived though they were.

@sski

Жыл бұрын

@@joshuawfinn I did! I really enjoyed watching you trim and fly that cool model. Considering what it takes to keep flying wings in the air and stable, you made that free-flight rubber-powered wing soar. Nice work!

Amazing flight !!!!

wow the voodoo is strong with you that`s something different A flying wing very nice vids as always

Really appreciate the effort in filming the entire flying process, motor tying, braiding, lubing, winding, I’ve noticed you’ve been doing this more and more in your videos and I feel that it adds a completeness and elevates quality, kudos!

@joshuawfinn

Жыл бұрын

Glad you're enjoying it. I noticed several other channels were showing some of that, and I keep getting questions about it, so hey, why not set up a camera while I'm doing stuff I have to do anyway? 😀

The thought process behind the trim changes always the most interesting…excellent flights too 👍

Yay josh. It looks amazing

Very cool!!!

Wow sir great flight

This is amazing. I just can't prevent myself thinking about those (rather rich) kids playing with this wing and saying to themselves "that's the future of airplanes" ✈ !

Amazingly futuristic for the time.. I did suspect that "voodoo" in fact meant "advanced trimming".. A really cool aircraft. Thanks for posting this, hoping y'all well. 🌟👍

@joshuawfinn

Жыл бұрын

All the voodoo is in cross controlling rudder vs side thrust and then adding wing weight to offset the rudder in glide.

I really enjoy your channel and I have learned a lot. I flew some free flight in my college days, but that was a long time ago. Mostly RC in recent decades. For people new to free flight, I wanted to add one comment about a DT for this planform. You can add a small weight midline of the ship. This weight when released by the timer will swing away via a line attached to the wing tip. Thank you for all you do to promote the hobby.

Great video

@joshuawfinn

Жыл бұрын

Thanks!

Trim the glide first with rudder and elevons after getting high enough to see the glide. Then trim the climb with the thrust line. Use the weights only to get the c of g correct if necessary. You were getting tight right on power and tight left on glide. So more right rudder and less right side thrust. As you increase the turns alter the side and down thrust. If it alters the glide take appropriate action. Till you get to maximum turns. Easy😀 ( not really).

@joshuawfinn

Жыл бұрын

Lateral balance tuning is critical on some planes, and this one is a prime example. Traditional trimming efforts just didn't work on this airplane so I had to get creative.

Wow! Cool! :)

Very cool! Looks like you're using lead tape. I love that stuff.

@joshuawfinn

Жыл бұрын

Lead sheet actually. We supply it in our bigger glider kits.

I used to love flying wing models, canards as well.

@joshuawfinn

Жыл бұрын

They're a ton of fun and yours flew wonderfully.

Fun video

Nice

At least the SX-1 can manage stall recovery, unlike larger flying wings from the same era. When asked how to deal with stalls, Northrup test pilots' advice to B1 test pilots was. "DON'T EVER DO THAT." At least Jack got to see the B2 fly before he died. Spending nearly 2/ds of his life working on flying wings that everyone else gave up on. The SX-1 is squirrelly as well.

@joshuawfinn

Жыл бұрын

Yeah wings can be...interesting. RC electric wings are a ton of fun though. Not hard to make one that's virtually stall proof and they have a very wide flight envelope.

Wow - What and odd duck indeed! Decades ago, my greatest achievement was to build the "Great Speckled Bird" -( won Mulvihill 1977... still available via AMA Plan service). After all that work to build, it was lost after trimming w/ just 400 turns at Flat River, Mo. I didn't think I needed to light a DT ...it just slowly circled going up, up, up until out of sight. Guess it was trimmed just fine : s

@joshuawfinn

Жыл бұрын

GSB is on my build list. I actually handled GSB Mk.II when David Mills was prepping it to be flown at the Nats a few years ago. George built it in the mid 90s and it's still around. I have in my own collection a Perryman Wakefield wing from the 1960s with some fantastic and hilarious notes on it.

@xpump876

Жыл бұрын

Cool Beans! sounds like your very familiar with this bird! (I like to think that mine is still circling the earth ...somewhere). Best of luck with your eventual GSB build.

Free flight looks incredibly satisfying, I've been into RC for thirty five years and now it's time to experience free flight 👈🏽🇺🇲🦅😁

@joshuawfinn

Жыл бұрын

The three most satisfying things I've ever experience, as someone who has flown a multitude of disciplines including a nearly 300 mph all carbon electric speed plane: 1. A perfect glider transition 2. An indoor plane cruising at minimum rpm just under the girders 3. A gas bird trailing nitro exhaust into a perfect glide transition And yeah...all freeflight. I can't explain why I love it so much but I just keep going back to it even after collecting some of the highest performance RC stuff.

@robertkummings6829

Жыл бұрын

@@joshuawfinn I've had everything as well, nitro powdered, electric, 1/4 scale gas Curtis seagull my Dad built from scratch, and some really fast nitro and electric, never did gliders but always wanted to 😁 But man I watch these videos and it's so cool looking 😎keep it up,great channel and very entertaining 👍🏽🇺🇲🦅

First time viewer. I like what I see.

@joshuawfinn

Жыл бұрын

Thanks!

Simple weight and balance calculation to move the trailing edge weight to the tip, reducing it while keeping the same rolling moment, then reduce the nose weight to maintain the same CG.

@joshuawfinn

Жыл бұрын

Yup. I was just too lazy to do that since it would only save maybe .5g on a 40g airplane.

awesome! You don't have a contra-prop set laying around somewhere? :-)

@joshuawfinn

9 ай бұрын

Unfortunately I do not. I need to find one sometime.

Have you worked with compressed air power ?

Mesmerizing.... what about a twin motor?? how hard would it be!!! since I saw the multiengine fortress you show on Flitetest... I was hoping to find your channel and follow you!

@joshuawfinn

Жыл бұрын

I've definitely pondered a multi engine scale flying wing. It would be fun!

It looks really cool, even if the flight is a tad capricious.

@joshuawfinn

Жыл бұрын

It really calmed down toward the end. The wind was pretty gusty when I was ROGing it and it still did very well.

The nightmare of every free flighter - build light and add lead ............ carve a prop for that baby ! ...

@joshuawfinn

Жыл бұрын

Yeah I'd carve a prop but it needed nose weight as it was to offset the trailing edge weight I needed to set the glide turn. There's probably a better way to do it, but the plane achieved my goals and I'm happy with it.

I do like something unusual

Nice airplane...... When all else fails voodoo often works well...... However no voodoo is more powerful than the evil trees! 😀🇬🇧

@joshuawfinn

Жыл бұрын

Most of the voodoo was that weight on the wing. Worked great!

Is there a link for the plans somewhere? I see this and think, 'slope soaring' . .

@joshuawfinn

Жыл бұрын

Yeah in the description, a link to AMA Plans Service. Unfortunately not free, but regardless it would be a fun sloper.

I could fast-charge a 3S 1500 by the time the rubber was ready for this guy!

@ksmith1298

Жыл бұрын

Whoopee

It looks like it has a little dihedral right?

@joshuawfinn

Жыл бұрын

Yes, about 1.5" under each tip. Works a charm in making it more stable.

.... and for your next challenge: modify it to a pusher?

@joshuawfinn

Жыл бұрын

Maybe. This one would need major changes for that. Better to build a Cyrano or Swallow by Barnaby Wainfan.

are you wearing eye liner?

@joshuawfinn

Жыл бұрын

I just don't ever sleep.

Mr. Joshuawfinn is pose to replicate that Flying wing Modify a bit like putting a charge and an electric motor to launch it?

@joshuawfinn

Жыл бұрын

You could convert it to RC or electric freeflight with very little effort. It would fly fine too.

Is it Mee-Go, Mey-Go, or Mee-GOW?

@joshuawfinn

Жыл бұрын

From records provided to the AMA from a family member, it was said to be May-GO

I've found that once a flying wing enters into a spin, there's no way to recover from it. Is there a solution? (I'm talking about RC planes here). Thanks.

@joshuawfinn

Жыл бұрын

Typically that's a sign of not enough vertical tail area. I've owned a number of RC flying wings and they all will spin but as long as I had enough altitude, power off and neutral stick has always resulted in a recovery.

@TimMcKay56

Жыл бұрын

GR: Good question, and I think it really depends on the flying wing. There are so many design variations, hard to come up with a uniform answer. Even for full scale aircraft, spins can be very tricky, especially when you consider rudder is the primary control to recover (which a lot of flying wings do not have). Best approach for an RC model: If in a spin, reduce power to idle and hope for a repairable crash. Tim

@goofyrulez7914

Жыл бұрын

@@TimMcKay56 - Thanks. I love that term "repairable crash", it's hits the nail on the head. I had a flying wing that that had no rudder but had the outer third of the wing tilted down. It flew beautifully but if I ever stalled and got into a spin, it would go all the way to the ground and have a "repairable crash". This is some thirty years ago. I guess if I did it today, there would be some electronic control to recognize and correct the spin.

@goofyrulez7914

Жыл бұрын

@@TimMcKay56 - Thanks Tim. The model I had had no rudder, it was one of the bent wing types that used drag in place of a rudder(s). The wing tips were tilted down a few degrees which acted as a rudder. I wish I could remember the model's name but it was some 30 years ago. I just remember it flew great when it flew but when it got "upset", it would let you know. 😆 (It did not like any major turbulence.)

I flew my 1st ever military type electric free flight this morning and if course I now open carry with my Donald trump hat And the liberals in my very conservative state finally decided not to talk to me A nice experience....in peace......its ghetto park but big.....