https://www.ultralightnews.com — The Maxair Hummer is a single seat, high wing, wire braced, taildragger. The single cylinder Zenoah 22hp with it’s belt reduction drive engine is mounted behind the wing on the upper root tube and is movable back and forth to provide the proper C of G for heavier pilots.
The Hummer uses bolt and rivet together aluminum construction with everything coming off it’s main boom tube. It has a spring type suspension system on the main wheels, and tail wheel. The double surfaced wings and tail section are covered in dacron sailcloth.
The Hummer is a two axis control aircraft using an V tail with ruddervators. All of the controls for elevator, and rudder are operated from the stick through a very unique “mixer.
The Hummer won Best Workmanship at the EAA Fly-in in 1978, and was marketed as plans and in kit form by Maxair after Hill’s death.
Maxair Hummer Ultralight Aircraft Specifications.
Seats: One
Length: 18 ft 0 in (5.49 m)
Wingspan: 34 ft 0 in (10.36 m)
Height: 8 ft 0 in (2.44 m)
Wing area: 128 ft2 (11.9 m2)
Empty weight: 170 lb (80 kg)
Gross weight: 370 lb (170 kg)
Powerplant: 1 × Zenoah G25, 20 hp (15 kW)
Performance
Maxair Hummer Performance Specifications
Rate of climb (Full throttle) – 400 FPM
Fuel Capacity – 5 gal.
Fuel Consumption 1 1/2 gal. per hr.
Top Speed 45 – 50 MPH
Take Off/Landing Speed 25-28 MPH
Stall Speed – 22-24 MPH
Take Off Roll – 300 ft surfaced/400 ft grass
Landing Roll – 150 ft surfaced/60 ft grass
Sink Rate – 225 FPM (approx.) L:D – 10:1
Estimated Set Up Time – 10-20 Min.
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https://www.ultralightnews.com – Maxair Hummer, single seat part 103 legal antique vintage ultralight aircraft.
I wanted to upgrade the wheels from the old style steel rims, to some more modern alu rims. I found some 16″ Mercedes rims close the where I live, so I bougth them. The ET was only 35, so I needed some 6mm spacers to make them fit my car. (ET29) I also wanted to get rid of the pesky wheel bolts, so i desided to convert the front to studs. Here is how I change from nuts to studs on my vanagon T3 T25.