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The CA-2 Photos Testimonials Notes & Updates Builders' Directory CA-2 Plans Introduction By Morry Hummel
Construction is simple, with all pop rivets and bolt assembly. All materials are off the shelf items. It is very inexpensive to build. Build time is approximately 600 hrs for the CA-2. The airframe cost is about $2,500. Sheet metal is the easiest and least cost for building any aircraft. Also, aluminum has built in safety factor of 50% and has guaranteed structural properties. Building support is as close as your phone or e-mail. There is a great newsletter for only $10 per year.
The Origin of the design By Frank Griffith, Designer
Several ago I was looking for an inexpensive way to get into flying. Ultralights were attractive but there were few plans available for building the planes from scratch (which is the lowest cost way of building). The plans that were available were for wood and fabric or tube and fabric. I really wanted to work in sheet metal since my shop is not heated. At that point, I started conceptually thinking about the possibility of building one out of sheet metal. The task was difficult since there were no previous designs to look at. After some thinking and sketching, it seemed like the idea was probably feasible.
However, I was convinced enough that a metal ultralight was possible so I quit my job as a corporate aerospace engineer, sold the home, and moved into an old family farmstead in southwest Iowa. Then I devoted full time to the possibility. A shop was set up in an out building with a small office. Some tools were purchased and a small computer was set up for design work. For the next two years, I designed, experimented, and tested several approaches to a metal ultralight.
Finally, a strut supported low wing type design began to emerge. Then the detailed design and analysis were performed and construction began in March of 1992. Four months later it was complete and I started testing in July of 1992. The aircraft has exceeded my initial expectations both in flying and building effort. It has gentle ultralight flying qualities and the building time is reasonable. Many people have expressed an interest so I've made plans available to others who are looking for an inexpensive metal ultralight.
Features and Specifications
The CA-2 is a light all metal legal ultralight (with Rotax 277) aircraft that can be built inexpensively from plans (approximately $2,000-2,500 for airframe) in 600 hours. Easy construction from sheet, angle extrusions, tubing and pop rivets. No welding, gluing, machining, or difficult forming required. Fuselage assembly performed on a flat table and wing assembly using a simple wood jig.
Strong all metal wing (utility category +4.4, -2.2g), smooth push rod controls, large ailerons and rudder, wide landing gear stance for easy ground handling, and wing detaches with removal of three bolts.
Plan pricing* Plans $125 ½ VW motor mount drawing $5 Canopy mod drawing $5 *U.S., for international, please e-mail for shipping quote
CA-2 Newsletter Published quarterly by Brian Lindner
Annual subscription cost is $10 To subscribe send payment to: Brian Lindner N4284 Dunning Rd. RIO WI 53960
Please print your complete address (legibly) and include your e-mail and phone number with payment. If you have any questions please send e-mail to Brian
Home | About Us | Hummel Bird | Ultra Cruiser | Ultra Cruiser Plus | CA-2 Forums | Newsletter | Our Store | Contact Us Copyright 2007, © All Rights Reserved, Hummel Aviation, Bryan, Oh. |
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