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  1. Harley

    MY FIRST DESIGN AT A HOMEBUILT

    Hey Guys,:ban: First off don't laugh I didn't spend alot of time drawing these up, there more for getting an idea on a page. The 3 images are different ideas of the same project, and I am looking for your corrective criticism for scale and size of different parts. Of course there are no...
  2. Harley

    Ultralight Trike Questions

    Ultralight Trike Questions Hello all!:ban: So after being Inspired by the internet video “Surfing the Clouds" I have decided that my first endeavor into flying will be in a weight-shifting trike. Now...... the questions once again arise......Any help would be great! 1. I live in Burlington...
  3. Harley

    Ultralight Trike Questions

    Hello all!:ban: So after being Inspired by the internet video “Surfing the Clouds" I have decided that my first endeavor into flying will be in a weight-shifting trike. Now...... the questions once again arise......Any help would be great! 1. I live in Burlington, WI does anyone know where...
  4. D

    Some Affordaplane Questions

    Hello! I am considering building the Affordaplane plane, and I had a few questions for people who have built or fly this or similar planes. Any help you could give would be greatly appreciated. 1) What is generally the total cost to build the Affordaplane from start to finish? 2) What...
  5. F

    First build advice.

    Howdy. I'm working on my first plane build right now, and have a couple questions. First off, the material is 4130 tube, but what diameter should be used for the fuselage? Wing? For the engine I'm thinking of the 30hp Briggs unit. I saw the 22 horse version on a similar plane, and the guy said...
  6. p-5151

    P-5151

    Hi to everybody. My name is Giancarlo, I'm 44, pilot since 1997, rc pilot since 1980. I fly the Loehle P-5151 Mustang " Danny Boy 2nd ", The first 5151 built and flying in Italy. www.5151mustang.150m.com A wonderful 2011 to everybody and mani happy landings :ban: Giancarlo
  7. GlassVampire

    Soviet X14 Ultralight

    Came across this "vintage" ultralight today. Anyone else ever heard of it? Seems like an interesting design, thought at first glance I'd say the wings are WAYYYYYYYYYYY to small to actually fly supporting a person. Though with a big enough engine and going fast enough I suppose it may be...
  8. Rienk

    New Ultralight and LSA Trainer design PAIR 2

    Well, I haven't given up on this project, but I wanted to get rid of the poll :ermm: I keep wondering about the whole 103UL thing… it’s hard not to consider the options for making a truly inexpensive RTF aircraft, and realizing that the weight limit will be hard to meet – but going LSA is...
  9. Rienk

    New Ultralight and LSA Trainer design PAIR

    Sorry about the poll being first - it was supposed to be after this first post. Please read this and then respond to the poll. Thanks, RA Intro One of my passions (beside designing or building things) is to see young people get involved in flying. It is obvious that to do so, we need to make...
  10. GlassVampire

    I've been cleared to build...but what? Motorglider!

    Hi all! So I've got the extra funds and the blessing of my significant other to start work on an ultralight. I'd like to build an ultralight motorglider, think mini 1-seat DA20-isque thing. Here are some thoughts: -Plansbuilt -don't care if its wood, fabric, composite, metal, etc. -modify a...
  11. P

    Murphy Renegade Spirit Kit

    I Have the newer style rectangular main spar partial parts kit, This has plans, build manuals [old and newer] , all bent pcs ribs ect, fiberglass parts, extrusions,and any hard to make parts Plus a prop. winshield, tailwheel and bracket, pito tube and about all the aditional aluminum tube and...
  12. U

    BAMBOO WOOD & DEMOISELLE ANYONE???

    A RETURN TO BAMBOO WOOD DEMOISELLE ANY ONE? So, I am so brand new to this, it's funny. But I am about to build a Demoiselle. And While I will be as true to the design as possible, BAMBOO, "et all", I would appreciate any of your own information that will assist in any design improvements...
  13. Daniel Tyrkiel

    Why split pins are the safest option for securing bolted connections

    Hello, I don't post much these days, but I thought this may be useful. A salesman from nord lock came in to the place I work at the other day to peddle their special washers and showed us a vibration test using various nuts (plain, nyloc, ovalised, and their own of course) and the graph...
  14. Sir Joab

    Composite Wing Spar for an Ultralight

    Hey guys, I'm working on a design for an ultralight somewhat similar to Airdrome Airplanes' 'Dream Classic'. I'm a collage student studying Electrical Engineering (2 years so far)... I say this to communicate two things: 1. I have a limited budget 2. I can do the math, but my...
  15. S

    New Guy in Ohio: Considering the Legal Eagle Ultralight

    Hello everybody, I'm Dave. I don't fly yet, so I figured an ultralight would be the way to get started. I was considering LSA planes when I stumbled onto the Legal Eagle Ultralight. It's really got my attention, mostly for the simplicity, and partially because it's an ultralight. It's cheap...
  16. radioinred

    still at it.......

    Ok I know I know.... I cant make myself quit. The numbers work out right cg, cL, static margin, weight..... The obvious problem is the uncertainty of the structural integrity of the fuse. I took the practical (though not advisable) route. I stood on the tail and ..... ...nothing. not a...
  17. radioinred

    best glue for dacron 1.8 oz.?

    Hey guys, I have just a quick question here.... In my ongoing search for the lightest/cheapest design for an ultralight trainer type of aircraft I have one of many simple questions that I am tired of asking my self. So I thought I'd pick your brains instead. Here goes...... If you were told...
  18. radioinred

    Hey guys, progress report......

    Ok I have redesigned just a few aspects of the fuse and rudder. More to come yet tho.... I will begin on the wing spars next week and try to finish the fuse. The elevator spar is not pictured nor is the new engine. CUYUNA 430! Man I love eBay. I got the block with tuned exhaust, a redrive and...
  19. radioinred

    She is Born.....

    Hey guys Im the college kid who asked a ton of stupid questions about building an ultralight biplane. Well Im home and a few things have changed... First off the project is now a parasol type plane with the slight possibility of adding a second pair of wings. She is a two seater...now dont freak...
  20. radioinred

    undercamber VS. flat bottom (airfoils not fannies)

    Hi all, Im the kid who is designing the UL bipe with the little 250 snowmobile engine. I am currently looking for the best airfoil for my wings. Things I know: 1) I want to cruise at or around 55mph 2) MTOW is 600lbs 3) horsepower is about 27 with redrive and powerfin. I have been going back...
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