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1/2 A flying wing?
So I want to build a simple 1/2a flying wing w/ a pusher babebee or product engine.
I want a minimalist-type design similar to the yb-49. The zagi kits seem a bit $$$. Anybody have any leads or ideas for something that might fit the build? I am not set up to cut foam, so I need some sort of kit or adaptation. Thanks! -Dave |
RE: 1/2 A flying wing?
Hi Dave.
You could build a 36x9 wing with an airfoil that is thick enough to house all your radio gear. Put a pair of winglets on it. Make the elevons so that they have about 1 inch of chord. Hang the engine out on a profile mount or box type fuselage far enough so the the engine and a 2 oz tank will fit in front of the wing. Balance the CG at about 15% of the total wing's chord. I've flown this set up for years as 1/2A combat planes and they are fun sport flyers, too. Fly it with a crepe paper streamer, or 2 or 3 for added visuals...like you had just won a combat match. |
RE: 1/2 A flying wing?
Sounds great, more details please,rough sketch even, what engine etc.
Not a pusher then? John |
RE: 1/2 A flying wing?
Search for Crazy Herb's 1/2 A delta. I saw his website for sale, but you can look for a bit and find something. He took the pink foam and sanded it to shape with a big coarse sanding block and experimented a lot. A Stryker might work. The foam parts are about $20 or so. I would try the pink stuff for a more thrilling approach.
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RE: 1/2 A flying wing?
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Heres one I threw together 18 years ago, I just sold it this past summer, and now I'm going to build another. This one had a OS 10 on it, and flew like a bat out of hell, or slow and easy. did rolls as long as you held it! It would cut it's own streamer doing loops.
Like combat say's, just build a wing, put on some fins & elevons on it, mount the motor of your choice, and go have fun! Pat |
RE: 1/2 A flying wing?
Kind of like a Sig Wonder, maybe lighter.
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RE: 1/2 A flying wing?
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I built this, it's a S-5020 airfoil balanced at 18%. Mine had a speed400 in it, but a 1/2a will work. Very easy build and vice-less flier. Two 36" cf tubes, one for the leading edge the other at about 50%. I just added 3/4"x 1/8" stock as the elverons.
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RE: 1/2 A flying wing?
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Unless you're absolutely stuck to a pusher design, here's an easy build plane designed by one of the posters on this forum, Pro Bro Joe. Parts count is low and it's a quick build. Should fly great on a product engine. Search for Kombat Kid and ProBroJoe on this forum.
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RE: 1/2 A flying wing?
Patrick Ulmer (ptulmer) had plans for little delta called Blink. I know PTU hasn't been on here is ages. I don't remember what his website was that carried the Bllink, DNU and others. Hopefully somebody will have a copy of the plan they can post here.
Hogflyer |
RE: 1/2 A flying wing?
I have the plans for Patrick's DNU, Blink, Little Streak and Little Delta; also for Crazy Herb's Cheap Delta. All of Patrick Ulmer's planes are built up from balsa. The Cheap Delta can be built using a sharp knife and hot glue gun - I built one, but reduced the span from 36" to 30" and used 1/2" instead of 3/4" foam.
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RE: 1/2 A flying wing?
Does anybody have a copy of any of the crazy herb plans?
Thanks -Dave |
RE: 1/2 A flying wing?
ORIGINAL: soarrich I built this, it's a S-5020 airfoil balanced at 18%. Mine had a speed400 in it, but a 1/2a will work. Very easy build and vice-less flier. Two 36'' cf tubes, one for the leading edge the other at about 50%. I just added 3/4''x 1/8'' stock as the elverons. Having said that, I wonder if a square punch made out of K&S tubing would work on 1/16" ribs...? |
RE: 1/2 A flying wing?
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Cheap Delta
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RE: 1/2 A flying wing?
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Here's a flying wing I've been scratch building for years. The upper one has a .15CVA and the lower one has a Norvel .074. The Norvel-powered one weighs 15 oz. and is a blast to fly. The .15 powered one weighs 27 oz. and is also a hot rod. These things frame-up in an evening. Balsa with spruce spars. Nothing exotic.
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RE: 1/2 A flying wing?
ORIGINAL: Andrew Cheap Delta Thanks! Off to Home Depot... -Dave |
RE: 1/2 A flying wing?
The inherent problem with pushers is you pretty much need landing/takeoff gear or a helper to pitch it for you...Rog
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RE: 1/2 A flying wing?
Combat kid flying wing is a blast , if you have the chance build one.
I've build mine with foam and electric motor, incredible performance.. believe me! |
RE: 1/2 A flying wing?
What is the easiest way to make the ailerons and hinges for the cheap delta?
Does packing tape work well for hinges? I was planning a product engine for power and I would guess that the oil will melt the glue on the tape? Are the ailerons cut from the same foam? Thanks -Dave |
RE: 1/2 A flying wing?
Dave Wave;
Hi . I checked the 1/2a catalog stuff, and one was in the mags, although it was NOT a pusher. Look for MODEL AVIATION June 1984, Willit: Rc flying Wing 1/2A... You did say you were lookin for a flying wing, and that was a pull out plan. I think it used a Black Widow .049. Another option to look into.. |
RE: 1/2 A flying wing?
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ORIGINAL: Dave Wave What is the easiest way to make the ailerons and hinges for the cheap delta? Does packing tape work well for hinges? I was planning a product engine for power and I would guess that the oil will melt the glue on the tape? Are the ailerons cut from the same foam? I made hinges on my deltas with bi-directional filament tape although Scotch Storage tape works as well or better and is likely lighter. Scotch Storage is more flexible and less like film - plus it's not as prone to splitting down the hinge line. The bi-directional tape will hold a truck, however. Make sure the surface is clean before adding the tape; by the time it starts to lift, the delta will be gone.:D Ailerons are the same foam as the rest of the plane. I just cut a 45 degree angle on the back of the wing and front edge of the aileron, then taped the top. This is a $2 expendable foam plane - don't get too technical. |
RE: 1/2 A flying wing?
ORIGINAL: Andrew ORIGINAL: Dave Wave What is the easiest way to make the ailerons and hinges for the cheap delta? Does packing tape work well for hinges? I was planning a product engine for power and I would guess that the oil will melt the glue on the tape? Are the ailerons cut from the same foam? I made hinges on my deltas with bi-directional filament tape although Scotch Storage tape works as well or better and is likely lighter. Scotch Storage is more flexible and less like film - plus it's not as prone to splitting down the hinge line. The bi-directional tape will hold a truck, however. Make sure the surface is clean before adding the tape; by the time it starts to lift, the delta will be gone.:D Ailerons are the same foam as the rest of the plane. I just cut a 45 degree angle on the back of the wing and front edge of the aileron, then taped the top. This is a $2 expendable foam plane - don't get too technical. Well I went to HD and ended up with the 3/4....The 1/2 seemed pretty floppy. I am going to cut it back to 30 inches and see how it goes. My foam is green? They used to have pink, but now green. Whatever....worth a try. I'll post a few pic when I get it done. OBTW- Will epoxy work OK on the foam? I also have wood glue if that works any better? Thanks! -Dave |
RE: 1/2 A flying wing?
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ORIGINAL: Dave Wave OBTW- Will epoxy work OK on the foam? I also have wood glue if that works any better? Get yourself a pack of bamboo skewers in the grill section at Wally World - they're great for re-enforcing joints. Where the fin attaches, I drilled about 3 skewers in from the bottom, pulled them out, dribbled some poly-u into the hole, wet the skewers and pushed them back in. I taped the entire delta - once taped, the 1/2" foam is plenty stiff. Here's a source: http://www.tapebrothers.com/Colored-...apes-s/218.htm The motor rails are made from paint stir sticks (free at Walmart) ripped to 3/8" wide. I took a dremel with a router base attachment and routed grooves about 8 or so inches long then glued the rails in flush. With foam, most any glue is stronger than the foam, so you need to increase your surface area. I used a piece of 3/8" square hardwood about 2" or so long sandwiched between the motor rail and a piece of plywood on the other side. I had maple stock from C/L mounts, but you can also get hardwood stock in the hobby section at Wally World. Where the central components are rubberbanded to the plane, I just drilled a hole thru the foam, pushed a rubber band thru, then slipped part of a bamboo skewer thru the end of the rubber band. Used the part cut off from the rudder re-enforcements. :D |
RE: 1/2 A flying wing?
ORIGINAL: Andrew ORIGINAL: Dave Wave OBTW- Will epoxy work OK on the foam? I also have wood glue if that works any better? Get yourself a pack of bamboo skewers in the grill section at Wally World - they're great for re-enforcing joints. Where the fin attaches, I drilled about 3 skewers in from the bottom, pulled them out, dribbled some poly-u into the hole, wet the skewers and pushed them back in. I taped the entire delta - once taped, the 1/2'' foam is plenty stiff. Here's a source: http://www.tapebrothers.com/Colored-...apes-s/218.htm The motor rails are made from paint stir sticks (free at Walmart) ripped to 3/8'' wide. I took a dremel with a router base attachment and routed grooves about 8 or so inches long then glued the rails in flush. With foam, most any glue is stronger than the foam, so you need to increase your surface area. I used a piece of 3/8'' square hardwood about 2'' or so long sandwiched between the motor rail and a piece of plywood on the other side. I had maple stock from C/L mounts, but you can also get hardwood stock in the hobby section at Wally World. Where the central components are rubberbanded to the plane, I just drilled a hole thru the foam, pushed a rubber band thru, then slipped part of a bamboo skewer thru the end of the rubber band. Used the part cut off from the rudder re-enforcements. :D Sweet....that can't stop me now!!!! -Dave |
RE: 1/2 A flying wing?
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Reading this thread which reminded me of Matchlessaero's "Spider Delta" which is a great looking model.
If you search this forum for Spider Delta you should find it (dated 5/9/2002). He also lists the specs and has several good pics. I believe I have the plans somewhere around here... Brian |
RE: 1/2 A flying wing?
hey av8rsodt, if you find those plans post'em! I'd love to build that!
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