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Speed,Combat,Scale,Racing => Rat Racing and Team Racing => Topic started by: Bill Little on August 14, 2006, 11:51:07 PM
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Before the "move" I saw mention of the Scale GoodYear Racing class. Is this still going on, and what are the rules?
Thanks!
Bill <><
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Yes Goodyear is still alive rules can be found on the AMA website. Lately the hot engine is either a NovaRossi or a Nelson. There are also some variations to goodyear on the club level using one ounce tanks and a scar event called formula unlimited using 40 size motors and 300 sq. in wings.
Scott
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Scott
Do you happen to know about what size props the Goodyears are running and about the RPM range the engines are turning.
Willis
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Hi Willis,
Rpm is in the 30k plus range with a 5 to 6" x 4 to 5.5 pitch prop alot depends on the type and weight of the model. Aircraft weight are approaching the same standards as F2C with models in the 300 to 400 gm. (10.5 to 14oz.) range ready to race. They tend to use alot of the same building techniques as F2C all 4 lb. wood and liberal use of fiberglass and carbon cloth throughout. A wing press is a must, vaccuum bagging of both the wing and the fuselage is pretty much standard. Although you can get away with just using a wing press with different techniques to achieve the same results. My F2C and F2CN wings typically come out right at 100 gm. with a see your face in finish that requires no extra sanding or rework except for the wing edges. The engine of choice on the west coast seems to be a Gillot prepped NovaRossi east coast a Nelson is the motor of choice.
Scott
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is the rossi .15 same as we ran in 70s?
type R normal rear intake& exaust?
David
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In a word, No the Rossi's of today come in either a 5 or 8 port configuration and the cases are considerably bigger than the Mk 1 and 2. An old Mk 1 was timed out at about 158 deg. exhaust and 132 to 135 transfers. In order for a old style Rossi to be competitive today the plane would have to be extremely light and nothing less than one flip pits. I am currently setting up an old Rossi Mk1 for a F2A trainer just to give the engine a second life and teach me how to fly with the plylon I have the right piston and liner, a few props, and 2 pipes to work with. When I finish the plane I will post pictures.
Scott
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Scott,
How about some pics of current racing activity to liven things up here? ;D Maybe you could pull those AMA rules/regs mentioned in the other post over here to provide some info?
C'mon racers, show your stuff! ;D ;D ;D
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Hi WWWarbird
Here are some pics of my Ohm Special Goodyear, taken just after it's 2003 Nats win.
The shutoff and bellcrank are Gillott hardware, the engine is a Tim Gillott modified Rossi Mk2. Prop was a carbon 5.75x5. Weight was 21.5 oz. In air rpm is typically about 31.5-32k.
Airspeeds are about 120-122 mph.
Most all of the Goodyear engines Tim has built have been Rossi Mk2 and Mk3's. He built one RB 15 for a fellow in the CA bay area to use in .15 Rat. The RB is similar to the Nova Rossi series. To the best of my knowledge, Tim has only built one engine of this type. He is not a fan of the Nova Rossi series, mainly due to the excess size and weight compared to the Rossi mk 2 and 3 engines.
Hope this helps some.
Regards, Les Akre
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I was actually in error in my original post by referring to "Scale Goodyear" racing. I have found outr that is was Golden Age Racing where Actual Scale planes of Gee Bees, Wedell Williams, Pete, and such are used with .40 size engines. Full Fuselage and scale markings.
I found one of my OLD American Modeler magazines the other day that had three drawings of .15 size Goodyear profiles for a 'proposed event'. It was suggested as a sort of "fun" entry level racing event using stock plain bearing .15s of the day such as the Fox 15X. I see that "the Event" has really changed! **)
Bill <><
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Is that the issue that had the Gee Bee, Laird Special and I can't remember the other one. The Flying Eagles of KCK ran that event for several years as an end of season series of races. I had a GeeBee with Medallion 15. No match for the Laird Special and TeeDee 15. I think we averaged about 10 entries for a club event. DOC Holliday
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John,
"American Modeler", July 1960: Gee Bee R-1, Folkerts SK-3, Turner Pesco Special, and Hall Bulldog.
"American Modeler", July 1961: Cosmic Wind, Bonzo, and Denight Special. Note: Denight plans were in a later issue due to space limitations.
"American Modeler", Jan/Feb 1963: Swee Pea II, Leighnor Special, and Long Midget.
These planes got it all started.
Bob Heywood
Dayton, OH
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John,
"American Modeler", July 1960: Gee Bee R-1, Folkerts SK-3, Turner Pesco Special, and Hall Bulldog.
"American Modeler", July 1961: Cosmic Wind, Bonzo, and Denight Special. Note: Denight plans were in a later issue due to space limitations.
"American Modeler", Jan/Feb 1963: Swee Pea II, Leighnor Special, and Long Midget.
These planes got it all started.
Bob Heywood
Dayton, OH
Hi Bob,
Are any of those plans available anywhere??? The Cosmic Wind "Little Toni" and the Denight Special are two of my favorites!
I have the magazine with the CW and Bonzo (shows the slight changes to make the Buster, too, I think)
but never have seen the plans.
Thanks!
Bill <><
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Bill,
I did a quick search on the AMA Plans Service. It looks like some of them may be available from the Pond Collection, now part of the museum archive.
I do have original copies of the following:
Folkerts SK-3
Turner Pesco Special
Cosmic Wind
Swee Pea II
The thing is I'm not in the plans business. The large format copier at Kinko's (at least the one I'm familiar with) does not copy 100%. It factors both the X axis and Y axis, significantly, by different values. I had better luck making bluelines when I had access to the equipment.
Bob
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If you photocopie the magazine reduced plan onto A3 paper in a photocopier set on 'darkish',
Then put the pieces on a window in the light to sellotape together accurately,
you can trace it off on lunchpaper to build from.
You just need a two foot straight edge to make sure it hasnt all walked of somewhere.
Does Someone have a copy of the Shoestring & Sweet-Pea artical from A.A.M, 1967 or 68
they could let me have a copie off.
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I do have original copies of the following:
Folkerts SK-3
Turner Pesco Special
Cosmic Wind
Swee Pea II
**Gosh, these would be the set for the Cosmic Wind plan so much needed! If anyone has this one, please share. Even if smaller, I am willing to enlarge them.