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GP-4
Low Wing - Wood
Osprey Aircraft
3741 El Ricon Way, Dept W
Sacramento, CA 95864
Telephone: 916-483-3004
Website: http://www.ospreyaircraft.com
Newsletter:
GP-4 Builders & Flyers Newsletter
Bill "Spud" Spornitz, GP4BFN
1112 E. Layton Dr.
Olathe, KS 66061-2936
Telephone: 913-764-5118
There is an excellent article on the GP-4 in issue #3 of Contact! Magazine
c/o Mike Myal
2900 E. Weymouth
Tucson, AZ 85716
Telephone: 602-881-2232
Email: contact1@flash.net
Articles in EAA and related publications:
| Year | Month | Page | Magazine | Article |
| 2003 | 08 | 26 | Sport Aviation | Good Looker: GP-4 Teaches Builder New Skills: Building a wooden “Ferrari of the air” (11 pgs) |
| 99 | 03 | 60 | Sport Aviation | Cotton Candy: Jackie Yoder’s Passionate Pink GP-4 (9 pages w/ color photos) |
| 93 | 03 | 12 | Sport Aviation | GP-4 plans revision |
| 88 | 05 | 10 | Sport Aviation | GP-4 Update |
| 84 | 05 | 13 | Sport Aviation | GP-4 Flown (BRIEF NOTE ONLY) |
| 84 | 10 | 44 | Sport Aviation | GP-4, The Outstanding New Design and Grand Champion Custom Built at Oshkosh 1984 (AND COVER) |
EAA members can digitally view archived editions of Sport Aviation here.
