I think an open fuselage was considered sufficient for the sedate airspeeds normally experienced, usually cruising at 55 mph. Instead of dihedral in the wing it's in the wingtips, she quite stable. When trying to comply with FAA 103 some compromises had to be made. I was very pleased with her flight characteristics, only minor trim was needed.

@@jimiorezzoli Covering with fabric not heavy, and cheap. Sound like a 1 speed wing; Rogallos are similar - yes lots of lift at slow speed, but then huge drag as speed increases - does not leave ypu much to play with. Mine (23012) stalled at 30kts or less; Vne 110kts; cruise about 75kts depending on propeller. 4 stroke engine in yours. Fuselage Al or moly steel? Al not normally allowed for mission critical parts - mine was the exception with extruded fittings and 8 3/16th SS rivets securing each tube. Anyway, very well done; would have been fun to fly formation with you.

Sorry I don't but she was a wonderful flyer.

These were pre-built, contact Valley Engineering in Rollo MO. They may be able to discuss plans.

@@jimiorezzoli thanks a lot

They didn't come as kits, only complete. Valley Engineering in Missouri

She's happiest @2800 rpm and doing about 60mph ias. Will spin and go faster but with more vibration and reduced range.

The pilot, designer, builder died and the airplane construction warehouse burnt down....

Yes it's the chute handle, that I prefer leaving pinned. The motor is a 90' Generac although they have a larger model with a flat 4 (VW)

Nice! The vw conversion I mentioned is a 4cylinder modification/ removal of 2cylinders which then could be used on ultralight, vw is then 4cycle 2cylinder much lighter suited for ultralight

Yes it is.

Which seems to be taxi speed + 5mph

$23000

the specs were posted on backyard flyer / culver props????

Its for sale, pretty cheap

@@jimiorezzoli lol Cheap is a subjective term. One man's cheap is another man's expensive. Give me a figure - what's cheap?

I'm in Unadilla, call if you'd like to come and take a look at it. 607-432-6117

BigFiveJack , Since no one else answered your question, I will. The engine is a Generac 4 cycle engine. If I’m not mistaken, it’s the biggest engine Generac makes. The people that build this ultralight airplane change the carburetor system for a bit better performance, and add altitude-compensating carbs. They are also the same people that build their own reduction drive system for this motor. Both the General motor, AND their reduction drive units are for sale separately, plus they make the wooden props, too. BTW, the ultralight itself comes a completed plane. No kits, and no assembly, only flyable planes. In a nutshell, the Backyard Flyer, the Generac engine, the redrive system and the wooden prop all come from one place.

@@Dsoginventor That detailed answer is Greatly Appreciated! As I am sizing up learning to fly, with the multiple options a person has in that endeavor, help, such as what you've provided with your answer, is of the utmost value!

Generac 998cc 40hp@3600

@@jimiorezzoli Thanks for the reply. You are a brave man. How many hours do you have on this?

@@Auger3504 About 120