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Author Topic: 1/2a proto  (Read 952 times)

Offline brian sisson

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1/2a proto
« on: September 12, 2023, 08:03:19 AM »
The rules are a little confusing for me for the 1/2 a proto profile. Do you have to run a beam mount engine and seperate tank? Or can a cox with a tank be run. like a black widow? I know its prolly not the quickest engine but maybe get my feet wet. Thanks
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Offline spare_parts

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Re: 1/2a proto
« Reply #1 on: September 12, 2023, 08:53:55 AM »
I recently asked someone about this as I have one of those goofy Profi 0.8 radial mount with the carb offset 90°. I saw a Cyclon .049 (without pipe obviously) on Henry Nelson's 1/2A Proto a couple weeks ago. The crank centerline and cylinder should still be as the rules require. It looked like a Mouse fuselage with the cylinder on the side. Also pay attention to the fairing rule, can't extend beyond 1/4 chord, which is different than Mouse.
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Greg

Offline Dave Rigotti

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Re: 1/2a proto
« Reply #2 on: September 12, 2023, 09:50:59 AM »
It will be fine. Just side mount the cylinder to be parallel to the wing leading edge outboard.
A short firewall fairing will be OK.
Keep it as light as possible and have fun!!!
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Dave Rigotti
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Offline brian sisson

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Re: 1/2a proto
« Reply #3 on: September 13, 2023, 07:37:25 PM »
Thanks fellas
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Offline Motorman

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Re: 1/2a proto
« Reply #4 on: September 14, 2023, 11:22:17 AM »
Deleted
« Last Edit: September 20, 2023, 07:11:49 PM by Motorman »
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Offline brian sisson

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Re: 1/2a proto
« Reply #5 on: September 14, 2023, 07:05:29 PM »
 ;)
Quote from: Motorman on September 14, 2023, 11:22:17 AM
Anybody that protests a Cox reed engine in 1/2a proto would have to be the biggest weasle in CL speed.
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Offline Dennis Toth

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Re: 1/2a proto
« Reply #6 on: September 29, 2023, 08:51:39 AM »
Since there are tons of these reed valve Cox engines available, cheap, it would be an interesting twist to the event.

Best,  DennisT
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Offline Dennis Toth

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Re: 1/2a proto
« Reply #7 on: October 26, 2023, 01:55:25 PM »
Brian,
Post some photos of you Baby Bee proto ship. Maybe could be a fun twist on the 1/2A proto event.

Best,   DennisT
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Offline bob whitney

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Re: 1/2a proto
« Reply #8 on: October 26, 2023, 10:52:07 PM »
`basically a profile mouse 1 with 2 wheels and a clear canopy and 45 sq in wing i believe
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