Vagabond 40 (oz13828)
About this Plan
Vagabond 40. Radio control sport pattern plane. Wingspan 56-3/4 in, wing area 550 sq in, for .35 - .50 engines.
Quote: "The Vagabond 40 is a fresh approach to the new 40 size sport model class. It is fully aerobatic and can perform any maneuver listed in the rule book. Its outstanding design features a full symmetrical airfoil, tapered wing and streamlined fuselage. The Vagabond 40 has the snappy look and built in performance that you always wanted in a low wing sport model."
Direct submission to Outerzone.
Update 17/11/2023: Added kit review from Model Builder, January 1984, thanks to RFJ.
Supplementary file notes
Planfile includes hand-traced formers on sheet 2.
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User commentsThe Bridi kits were good kits, as kits go, sometimes sufferering from the main kit failing, which made them come out somewhat heavy. Why, you ask? They can't pick their wood like you or I might, so they were just overbuilt to compensate. I recently completed a KAOS, also a Bridi design, lightened up for electric power, it weighed at least a pound lighter than any other KAOS, flew beautifully. No, I didn't use some unobtainable super light wood, I just substituted thinner sizes everywhere. You can do the same. Notice the K&B 40 on the plans, once the most popular engine ever made. It ran perfectly. Then they had to make changes for muffler addition. Throttle response was no longer instant, and the good Perry carb was replaced with an Irvine, which never worked as well. Guys were buying the engine and replacing the Irvine with a Perry before even running the motor. K&B next re-designed the front end to accept a new crank and larger bearing, at the same time mounting a giant new carb of their own design. Some worked well and some didn't. I had one which was the best running motor I ever had, big carb and all. I ran it so much I finally just wore it out. I bought a new one as a replacement and it was a piece of crap, K&B's quality control having slipped by this time. I had to replace it with an OS, no more problems. I see we have a HUGE advantage with this plan, a nicely traced sheet with all the kit parts, something we don't get with kit plans. Canopy can be cut down from one of the SIG models, no problem. If you move the firewall forward a little, an electric motor will fit, leaving more room for the battery. Don't even think about using a plastic spinner, you will never get it balanced. A metal version will run smooth. If your spinner is out of balance, it will wear out your bearings. Guess how I know. Give this model a try, all the Bridi designs flew perfectly.
doug smith - 16/05/2022
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