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Author Topic: 1965 narrow bypass 21/46 ST  (Read 935 times)

Offline Air Ministry .

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1965 narrow bypass 21/46 ST
« on: September 03, 2017, 08:45:51 AM »


They dont make castor oil like they used to  S?P

on fleabay $ 80 buy it now . Nowt to do with me - But Bill Werwage ' Juno ' or something said Art gave him one , as theyre better !

Just for comparison .




Offline EddyR

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Re: 1965 narrow bypass 21/46 ST
« Reply #1 on: September 03, 2017, 09:43:32 AM »
I have seen that quote before but the later single ring thick sleeve version is the best one. The build quality was not as good on the early ones.
Ed
Locust NC 40 miles from the Huntersville field

Offline RandySmith

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Re: 1965 narrow bypass 21/46 ST
« Reply #2 on: September 03, 2017, 04:47:09 PM »
The  last ones made were by far the best ones, the  ONLY reason Billy Werwage used the early ones, was they were much lighter, he used them in Ares  and Vulcan sized planes,  until the  Aero Tiger  knock them out of his planes, very quickly

The early thins sleeve  no lug versions were about an ounce lighter than  the last ones made

Randy

Offline Air Ministry .

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Re: 1965 narrow bypass 21/46 ST
« Reply #3 on: September 08, 2017, 06:26:34 AM »
WHO is Resposable for THIS ,  S?P

http://www.control-line.org.au/content/dkd/clmodels/clstunt/art/st46.jpg





Like Hillman Hunters ! ( Chrysler Crickets in the U S )
Two in a few days .
Havnt seen the truncated intake , cinch bar hole machined off , before .

Is this ' accident recovery ' ( snotted carb mount ) or the " 1/2 inch to bearer "  version of some renowned or otherwise tuner / engine builder/s . Or just a co-incidance .

Why the reason for the shortened intake mount ??.

Thanks.

Offline bob whitney

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Re: 1965 narrow bypass 21/46 ST
« Reply #4 on: September 08, 2017, 12:25:40 PM »
they were originally R/C engines and were machined to take am RC carb
rad racer

Offline Air Ministry .

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Re: 1965 narrow bypass 21/46 ST
« Reply #5 on: September 08, 2017, 05:47:57 PM »
You can see in comparison to this , the whole cabodle with the flats & cinch bolt  ( spraybar here ) , about 6 mm , has been machined of on those last two .

Just wondering if its somebodys trick stunt set up , or if theres a more sinister explanation .


Offline EddyR

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Re: 1965 narrow bypass 21/46 ST
« Reply #6 on: September 08, 2017, 08:27:04 PM »
The top one was cut off at the factory to fit a RC carb that was very popular at the time . Many people put a needle like that one but it puts it below .5" I still have one. I rebuilt many but I did the needle different ,moving it up to.75" I never have seen a motor with muffler ears with cut off venture.
Ed.
  NOTE
I recently bought a new case with ears and it was a thin sleeve case. Fooled me on that one as I had never seen a eared case that was thin sleeve.
Locust NC 40 miles from the Huntersville field


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