Hummel Aircraft - CA-2 ultralight by Hummel Aircraft |
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Ultralight aviation was inspired by grass roots aviators! You can't get
more grass roots than the Hummel CA-2 a little 250 lbs single seat all
metal craft that you build from plans. At the show I came across a little CA-2 that was recently completed by Delmar Preston of Cochranton PA. According the Delmar "the plans come in 17 x 11 sheets, are very clear and easy to follow, and include a step by step builders manual which also gives you a complete parts list and materials list."
Delmar says the plane can be built with regular tools but he purchased "a small 30 inch shear and an air riveter to help install the over 4,000 rivets." Delmar built his CA 2 in his basement which required cutting a hole in the wall to get it out. His shop area was 14 x 10 feet. He started construction on the tail first to get the feel of building his "first plane" and then moved on to the wings and then the fuselage. In total he put in about 400 hours on the airframe and another 200 hours on engine installation, paint and rigging. He indicated that there was no welding required in the whole plane, "just a lot of pop rivets and bolts." His little CA-2 is powered by a half Volkswagen engine, with 94 mm jugs and a 69 mm stroke. He also built the engine from plans and installed a secondary motorcycle ignition. The engine is direct drive and spins a 54 x 22 Tennessee wood prop. This engine and prop configuration gives him a take off distance of about 200 feet a climb of around 300 feet per minute and a cruise of 55 mph on 1.5 gallons of fuel per hour! The airframe materials can be purchased for around $2,500 and there is a great little newsletter available for $10 per year. For more information on the CA-2 contact Delmar Preston Hummel Aviation |
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Ultralight
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