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Building Tips and technical articles. => 1/2 A building. => Topic started by: john e. holliday on August 13, 2011, 09:58:36 AM

Title: OK Cubs
Post by: john e. holliday on August 13, 2011, 09:58:36 AM
Someone mentioned in one of the posts about the lack of power of the old reliable OK Cub .049 engines,  I say old as I got one of the newer ones that someone was selling a couple of years back.   Was not the same as the original OK Cub .049A that I still have.   Had some kind of insert in the venturi.  Very little compression.  I also havea bunch of the A's an B's I have gotten off the bay.  The old engines.  But, I can't tell how many flights and planes that little OK Cub powered.   Even after getting a Babe Bee I still went back to the Cub for flying.  Also I seem to remember a lot of magazine plans that showed OK Cub for power all the way up to the .14.  I think they were great for scale and sport flying. H^^
Title: Re: OK Cubs
Post by: Terrence Durrill on August 13, 2011, 02:51:12 PM
I started off with in 1953 with one of the early model O.K. Cub .049's and used it on a Scientific Little Ace, a Baby Barnstormer, an original Looper (vaguely inspired by the Firebaby which I could not afford at the time) to various offshoots of the basic Baby Barnstormer design.  I also used that engine on two free flight planes, the 555, built off of Flying Models magazine plans and an original I designed myself.   I never owned the other models  of Cub engines...... .074, .099, .14, .19, .29 or the .35,  but some of my flying friends did and I got to see them in action.  Great fun, those Cubs, very user friendly, if not very powerful.  My origina Cub .049 was stolen out of my garage about 1968, but I have aquired another of the same vintage from good old Ebay.............I want to build another Looper..........some day.   D>K
Title: Re: OK Cubs
Post by: George on August 14, 2011, 10:10:12 AM
My first model engine was a used OK Cub in a Scientific Litttle Bipe. I have never been concerned about the power, I just build a plane sized for the available power. For the OK Cub (.049) or the OK Cub .049B, I like Joe Wagner's Veco Scout.

I have never had the .29, .35 either, but I do remember seeing them in my LHS when I was a kid.

George