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thanks for the reply jim. a previous owner already cut off the motor mount and modified the firewall for a VW. (mistake) so will fix that. i was wondering about fuselage length are the B,C, and mark 4 longer? also i'm missing right lift strut so will have to make one unless i can find one for sale. the one i have is 3/4 inch if i go to 7/8 inch will that increase my g.w.? also i have the 30 foot wingon my model A. my hangar door is 30 foot! would removing the wing tip and drop the span to 27 feet be a bad idea? my ridge runner 3 had a 26 foot span with a rotax 503 and performed great. thanks jim
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A model is 36" wide at the top of the seat. Others are 39 1/2" wide. Gross weight is much less as well. Originally had a welded in motor mount, not bolted on like later models.
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Hi, all just picked up an avid model A! year unknown! i am a long time aircraft builder but have no experience with avid''s. did build a ridge runner 3 so very similar. can anyone tell me the difference between an A,B,C, mark 4 ? this airplane is going to need a total restore,just wonder if is worth upgrading to one of the newer models if possible? thank's. Billl
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Here is the info I used for replacing the struts on my Avid Mk IV. I used the .47" struts. I had to cut the rod shorter by about 1" and rethread the end fitting, probably because I didn't measure the length properly!
https://www.mcmaster.com/catalog/130/1496/9416K12
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The title tells it all, I'm looking for a grove gear and brackets for my Kitfox 4 project. I do have a never used factory Kitfox cabane gear if someone wants to trade, but I'm willing to buy one outright as well. Private message me for starters. Here is a picture of the Kitfox gear and another after I faired and covered the gear legs. I'm keeping the axels though if I sell or trade this gear. Thanks, JImChuk
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Mk4 fuse with rudder and doors currently covered in dope. Perfect to rebuild that damaged avid $2500 FOB Hanson MA (28M) near Boston MA. Call me at 508-496-5394
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Purchased a new KitFox 7STi and expecting to have it flying by summer 2025. Planning to do some backcountry flying in eastern Utah and Western Colorado. Looking to meet other KitFox owners / pilots interested in new friendships while backcountry group flying, camping & exploring. I'm currently renting Cessnas and Citabrias just to keep up the skills.
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The nice thing about vinyl ester and many epoxies is they stand up to alcohol. Both of those will adhere to the polyester the early tanks were made from.
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The resin I used was polyester resin, the stuff made by bondo. Was just looking at it on line and a number of people were complaining about it not hardening up, I've never had that problem. Made lots of stuff with it. I did buy the gallon cans of resin. Not that that should matter??? JImChuk
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The Kitfox tanks had kreem fuel tank sealant in them, and I used acetone to try to get it off. Not sure how many layers I used, but the new rib I made was about 1/8" thick. Probably used three or four layers of fiberglass cloth to join the ribs back to the bottom of the tank. I think I made the rib on a piece of old lexan windshield. Thinking now, and I may have done that, I would lay another piece over the layup of fiberglass, and screw down a piece of plywood over the top to squeeze it all flat while it sets up. I used the fiberglass resin like you find at walmart.
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Hi Jim,
Thank you very much! What solvent to clean the tanks should I use and what epoxy? How many layers of what weight cloth where used for the doubler mounts and baffles? Thanks, Bryce
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Just a follow up on this repair. It's been fine now for the last 2 1/2 years. Hope my saying this don't jinx it. JImChuk
WTB spinner
in For Sale and wanted, you got it, I want it
egp8111
Posted
Wish I had one to trade ! I'm running a 3 blade NR with no spinner. I'd love to have a skull cap spinner but no one has them in stock anymore.