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Classic Designs => Classic Planes => Topic started by: Jim Roselle on July 01, 2015, 10:33:25 AM
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Hello all,
I just ordered the the Brodak version of the Sterling Mustang. I plan on using it as a sport/race/stunt plane. I plan on extending the ply doublers back to mid wing, and possibly extending leading edge sheeting back to the spar. Will either of these modifications make it ineligible for OTS?
Thank you,
Jim
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Yes.
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Jim, the original Sterling Mustang had no sheeting except at the center section. The wing is built similar to a Ringmaster with just the leading and trailing edge and internal spars. That said, it depends on the CD at the contests you go to as far as mods from the original.
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Jim - I flew a Sterling Mustang in Classic, AMA and Old Time Stunt for five years. Took home MANY trophies. I also loaned it to quite a few people who competed and won.
I added one inch of dihedral, wing mounted gear and lead edge root cuffs.
Weighed 26 ounces, powered by an OS Surpass 26.
Never had a protest.
Bob Z.
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Many people who built the sterling mustang in the 1950,s put the gear in the wing. That was a common thing to do. I never saw any with leading edge planking.
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hey Bob did you build it with flaps or without
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Hello all,
I just ordered the the Brodak version of the Sterling Mustang. I plan on using it as a sport/race/stunt plane. I plan on extending the ply doublers back to mid wing, and possibly extending leading edge sheeting back to the spar. Will either of these modifications make it ineligible for OTS?
Thank you,
Jim
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The original Sterling Mustang had NO leading edge sheeting or surface spars. If we're going to allow this, we may as well allow the S-1A (sheeted LE) Ringmaster.
In short: NO.
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hey Bob did you build it with flaps or without
Brad: I glued the flaps on.
Bob Z.
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Depends on the CD. Opinions differ. I doubt extending the ply doublers would be an issue. I doubt anyone at an East Coast Contest would raise a fuss, if you extended the leading edge sheeting. The airfoil was pretty thin originally. Extending the leading edge sheeting might be a non advantage. The slight improvement of lift (if that was even the case) offset by increased weight of the bird. Biggest issue is weight. Do what you can to keep it light. Bobby Z built his light. Old Time airfoils work ok, if they don't have much mass to turn.
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If you are allowed to do that with Mustang, then why not allow the Ringmaster S-1A as by my comparisons it is the sane as the S-1 and in my opinion does not fly like the real S-1 Ringmaster. Yes, I have built and flown the S-1A and literally wore it out. Why don't people just read the rules for what was originally a fun event so we could build and fly the planes of that vintage. Remember you can change the construction all you want as long as it is not obvious from the outward appearance.
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Here she is about 99% complete.
(http://i.imgur.com/0jI54h1.jpg)
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Now I like that! The very first control line model I successfully flew was a Sterling Beginner's Mustang with a Cox Baby Bee .049 from a Cox Curtis Pusher on it for power. I couldn't afford the dope for it, but wanted to decorate it some how. I had watched ABC's Wide World of Sports and their coverage of the early Reno Air Races and between that and magazine photos, fell in LOVE with E.D.Weiner's Mustang. So I used that as inspiration and used a black Majic Marker and hand drew checker boards on it, You can imagine what happened to that the first time I ran it! I havvea black and white picture of it some where. Your is looking good so far!
Type at you later,
Dan McEntee
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Beautiful job Jim
I could never find the patience needed to mask of and paint checkers like you did
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I've flown in countless OTS contests and never seen a plane disallowed. Certainly not anything like your Mustang.
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I guess it depends on if you win the contest or not. If you read the rules you will clearly see the pictured plane is not legal. My opinion. Now go read the rules.
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I have too Paul, but I have seen many that should have been. Once these things start there is no stopping. So every one just build what ever you want and how you want as nobody cares anyway. I guess you could put a scoop on a twister and call it a mustang.
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Marginally competitive planes like this don't bother me at all.
What bothers me is BIG 65-powered models with fat airfoils and very shaky proof of legality. Somebody's word that the designer was thinking about a model that nobody saw until 1955 fails to convince me. I want to see a 1952-or-earlier PUBLICATION.
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Yup, if we don't stop it now pretty soon they will even allow ELECTRIC motors in OTS... %^,(what, they are allowed?, oh well, then never mind...)
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Yup, if we don't stop it now pretty soon they will even allow ELECTRIC motors in OTS... %^,(what, they are allowed?, oh well, then never mind...)
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<chuckle> Sadly, 'tis true. :-[
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Here she is about 99% complete.
(http://i.imgur.com/0jI54h1.jpg)
Jim, I LOVE it! My older brother Gary used to build Sterling Mustangs and relegated me to the Yaks. sorta like he always got to be Roy Rogers and I had to be Gene Autry when we played cowboys and cowboys. Nothing like being the "younger" brother, I guess. Neither one of us ever made a Sterling profile that looked that good. Did you relieve the ribs for the sheeting or add capstrips and beef up the trailing edge to fair them in?
Good looking machine.
Ted
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It is for sure a beautiful plane. You did an excellent job on it.
Ted; If I remember right the Brodak version is basically a D tube wing with top and bottom spars and sheeting from the leading edge to the spars. Pretty sure the ribs are relieved for the sheeting and spars.
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Thanks guys!
Ted, I ended up not sheeting the leading edge after all.
Jim
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Enter it and have fun. There are enough no-birds to go around. Very nice looking model!
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I doubt if a CD is likely to take it on himself to DQ an OTS model, but would be willing to act on the written protest of a competitor flying the event. For one thing, the CD is usually too busy herding cats. Hep cats, to be sure, but cats none the less. ;) Steve
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As John Miske wrote the rules they said you could improve the strength of the original airframe,as long as you didn't change the outside dimension of the craft. Wing sheeting might get some some brows raised. Sheeting of the complete leading edge would not be appropriate imho. Would I protest in this event? NEVER!
Phil Spillman, An old time who flew these planes when they really were NEW!