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  #1  
Old 03-31-2014, 10:54 AM
tmacklin's Avatar
tmacklin tmacklin is offline
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Default U.S. Rockets V-2 2.25 review

Over on that other forum with all the pop-ups....

http://www.rocketryforum.com/showth...0740#post690740
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  #2  
Old 03-31-2014, 06:43 PM
snaquin snaquin is offline
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Quote:
Originally Posted by tmacklin
Over on that other forum with all the pop-ups....

http://www.rocketryforum.com/showth...0740#post690740


Very nice. Your Guillotine fin alignment tool really shines over more traditional methods with the fins attached to the tailcone on this model.

I like the baffle. Is the front baffle ring plywood?

.
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  #3  
Old 03-31-2014, 06:47 PM
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mojo1986 mojo1986 is offline
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Are the fins scale? They look a bit oversize.

Joe
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  #4  
Old 03-31-2014, 07:31 PM
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Jerry Irvine Jerry Irvine is offline
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The fins are scale. The tube length is slightly off.

Attached is a closeup of the U.S. Rockets Compact Baffle.


Last edited by Jerry Irvine : 04-01-2014 at 07:56 AM.
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Old 03-31-2014, 08:18 PM
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tmacklin tmacklin is offline
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Quote:
Originally Posted by snaquin
Very nice. Your Guillotine fin alignment tool really shines over more traditional methods with the fins attached to the tailcone on this model.

I like the baffle. Is the front baffle ring plywood?

.



Thanks. It really helped in this build because the curved surface literally throws a curve at you as far as longitudinal fin alignment goes. It's like having a third set of hands...only they don't tremble.

Actually, there is only one baffle plate. The balsa tail cone has a through bore and the 24 mm motor mount projects both out of the rear and up into the main body tube, sort of like a short stuffer tube. It is capped off by a small plywood disk which is in turn abutted to the perforated baffle.

So how does the ejection gas get out? You must cut out two rectangular "windows" in the top portion of the motor mount tube just below the baffle and just at the top of the balsa tail cone. These can be seen in the photos. Pretty neat and I'm looking forward to seeing how it performs.
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Old 04-01-2014, 05:08 AM
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mycrofte mycrofte is offline
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After discovering that type of baffle, I was mad I hadn't thought of it before.
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  #7  
Old 04-01-2014, 08:50 AM
Stargate Stargate is offline
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Quote:
Originally Posted by tmacklin
Over on that other forum with all the pop-ups....

http://www.rocketryforum.com/showth...0740#post690740


Nice photos of your U.S. Rockets V-2 build on that other forum. Looks great.
Funny, I don't get a single popup on that other forum. But, I'm still unable to sign up and register.

Regards
Larry B
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  #8  
Old 04-01-2014, 09:30 AM
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tmacklin tmacklin is offline
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Quote:
Originally Posted by Stargate
Nice photos of your U.S. Rockets V-2 build on that other forum. Looks great.
Funny, I don't get a single popup on that other forum. But, I'm still unable to sign up and register.

Regards
Larry B


Thanks Larry. I thought I'd boost their readership but there seems to be limited interest in old school technology on that venue. So I linked it to YORF.
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  #9  
Old 04-01-2014, 10:53 AM
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Jerry Irvine Jerry Irvine is offline
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Quote:
Originally Posted by tmacklin
Thanks Larry. I thought I'd boost their readership but there seems to be limited interest in old school technology on that venue. So I linked it to YORF.
389 views on TRF in 2 days, so somebody is reading it. Even if you cut the figure in half for reviews to check for updates, that's still about 190.

YORF is 157 so the half rule delivers 80 viewers.

You might mention at TRF that the U.S. Rockets V-2 2.25 is available at Apogee right now along with a few other kits like F w/ Multiple D Pods, Dual 18mm Rear Eject, Two The Limit, Hammerhead, Micro-Sentra SRB and others.

Jerry
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