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About Airplanes & Rockets

Kirt Blattenberger, Webmaster - Airplanes and Rockets

Kirt Blattenberger


My Engineering Web: RF Cafe

Carpe Diem! (Seize the Day!)

Even during the busiest times of my life I have endeavored to maintain some form of model building activity. This site has been created to help me chronicle my journey through a lifelong involvement in model aviation, which all began in Mayo, MD ...

Airplanes And Rockets Copyright 1996 - 2026

All trademarks, copyrights, patents, and other rights of ownership to images and text used on the Airplanes and Rockets website are hereby acknowledged.

My Main Modeling Websites

Academy of Model Aeronautics (AMA) - Airplanes and RocketsAcademy of Model Aeronautics

Tower Hobbies logo - Airplanes and Rockets

Tower Hobbies

Horizon Hobby logo - Airplanes and Rockets

Horizon Hobby

Sig Manufacturing - Airplanes and Rockets

Sig Mfg

Brodak Manufacturing - Airplanes and Rockets

Brodak Mfg

Carl Goldberg Freedom 20

Supermodel Melanie holding my Carl Goldberg Freedom 20 in Smithsburg, Maryland (1990ish)I was bale to fly my Carl Goldberg Freedom 20 from the back yard of my house in Smithsburg, Maryland. It was a great setup and one that allowed me to fly a lot of radio control, control line, and free flight airplanes, and also allowed me to launch quite a few model rockets. Then, houses started being built in the corn fields and that put an end to the convenience. Consequently, the number of flights went way down.



Goldberg Freedom 20




My Goldberg Freedom 20, Smithsburg, MD (circa 1992)


Freedom 20
Wingspan: 55"
Wing Area: 430 Sq."
Flying Weight: 3.75 lbs.
Fuse Length: 45"
Radio: 4-Channel
Power: .15-25 2-Cycle
.20-.25 4-Cycle

(In Degrees)

Wing: 0
Tail: .5
Engine: Right 2.5
Down 6
Aileron: 3/16"
Elevator: 1/4"
Rudder: 1/2"
 Center of Gravity

Balance Point on fuse,

measured back from

wing leading edge

2-1/8" to 2-3/4"