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  #1  
Old 09-05-2019, 12:01 PM
A Fish Named Wallyum's Avatar
A Fish Named Wallyum A Fish Named Wallyum is offline
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Default RDC V-Max

Steve's post of the plans and scans for the Bo-Mar Alpha B yesterday got me fired up. I went home yesterday and started going through the piles of projects that had been laying dormant for most of the spring and summer. Last year I bought an ebay lot of nose cones, mainly because one of the cones looked like the cone for the RDC Cardinal/V-Max. It had been sharpened to a point, but whatever. It doesn't quite fit any of the tube stock I have on hand, but I do have a scrap of some mystery tube that fits it like a glove. Golf season has (finally) ended, so I'm going to try to make it to a build session at eRockets next Tuesday, both to get some rocket building done among like-minded people, as well as to potentially track down a proper tube to finish the V-Max.
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http://wallyum.blogspot.com/

I miss being SAM 0058

On the build floor: Estes PemTech Kraken, Semroc S.P.E.V

Rediscovered: Semroc Laser X, Semroc SLS Laser X

In paint: Centuri Stellar Hercules, Centuri Zebra II, Estes Alpha, Estes Monarch, Semroc Squire

In the body shop: Estes Jayhawk, TLP Perseus

Ready to fly: Estes Astron Farside X, Estes Astron Apogee, FRW Star Jart
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  #2  
Old 09-05-2019, 12:21 PM
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Interesting two stager.

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  #3  
Old 09-06-2019, 11:42 AM
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I like the looks of the Feather, but the angle isn't good for my method.
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Bill Eichelberger
NAR 79563

http://wallyum.blogspot.com/

I miss being SAM 0058

On the build floor: Estes PemTech Kraken, Semroc S.P.E.V

Rediscovered: Semroc Laser X, Semroc SLS Laser X

In paint: Centuri Stellar Hercules, Centuri Zebra II, Estes Alpha, Estes Monarch, Semroc Squire

In the body shop: Estes Jayhawk, TLP Perseus

Ready to fly: Estes Astron Farside X, Estes Astron Apogee, FRW Star Jart
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  #4  
Old 09-06-2019, 08:59 PM
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mwtoelle mwtoelle is offline
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Quote:
Originally Posted by A Fish Named Wallyum
Last year I bought an ebay lot of nose cones, mainly because one of the cones looked like the cone for the RDC Cardinal/V-Max. It had been sharpened to a point, but whatever. It doesn't quite fit any of the tube stock I have on hand, but I do have a scrap of some mystery tube that fits it like a glove. Golf season has (finally) ended, so I'm going to try to make it to a build session at eRockets next Tuesday, both to get some rocket building done among like-minded people, as well as to potentially track down a proper tube to finish the V-Max.

It looks like Semroc/Centuri ST-7 tubing will be the closest match for the equivalent RDC tubing. I looked at a 1968 RDC Catalog on ninfinger and found that the RDC tube for that nose cone had an I.D. of .710" and an O.D. of .750". This makes for a wall thickness 0.020". In other words, think of a Cetnuri ST-7 tube wound around a BT-20 mandrel instead of the correct mandrel for a ST-7.
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  #5  
Old 09-19-2019, 07:27 PM
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Turns out my mystery nose cone fit perfectly in a BT-30 tube. Color me happy.
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Bill Eichelberger
NAR 79563

http://wallyum.blogspot.com/

I miss being SAM 0058

On the build floor: Estes PemTech Kraken, Semroc S.P.E.V

Rediscovered: Semroc Laser X, Semroc SLS Laser X

In paint: Centuri Stellar Hercules, Centuri Zebra II, Estes Alpha, Estes Monarch, Semroc Squire

In the body shop: Estes Jayhawk, TLP Perseus

Ready to fly: Estes Astron Farside X, Estes Astron Apogee, FRW Star Jart
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  #6  
Old 09-20-2019, 10:35 AM
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Quote:
Originally Posted by A Fish Named Wallyum
Turns out my mystery nose cone fit perfectly in a BT-30 tube. Color me happy.

When does the Jarts game start? Don't forget to plug the booster motor!

Beginners play with A8-0
Intermediate B6-0
Advanced C6-0

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  #7  
Old 09-20-2019, 10:43 AM
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Quote:
Originally Posted by tbzep
When does the Jarts game start? Don't forget to plug the booster motor!

Beginners play with A8-0
Intermediate B6-0
Advanced C6-0


Even better, A8-5, B6-6, C6-7. That way it's going to be tipped over at the target when the ejection charge fires. I just have to glue the nose cone in place.
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Bill Eichelberger
NAR 79563

http://wallyum.blogspot.com/

I miss being SAM 0058

On the build floor: Estes PemTech Kraken, Semroc S.P.E.V

Rediscovered: Semroc Laser X, Semroc SLS Laser X

In paint: Centuri Stellar Hercules, Centuri Zebra II, Estes Alpha, Estes Monarch, Semroc Squire

In the body shop: Estes Jayhawk, TLP Perseus

Ready to fly: Estes Astron Farside X, Estes Astron Apogee, FRW Star Jart
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  #8  
Old 09-20-2019, 11:29 AM
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I could really get "on board" with this "Rocket Jarts" game.

If we could get 1/2A6-0 or 1/2A3-0T motors again it would be a bit easier to "dial in"
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  #9  
Old 09-20-2019, 11:53 AM
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Quote:
Originally Posted by ghrocketman
I could really get "on board" with this "Rocket Jarts" game.

If we could get 1/2A6-0 or 1/2A3-0T motors again it would be a bit easier to "dial in"

Easy to manufacture at my motor mod facility.
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  #10  
Old 09-20-2019, 04:02 PM
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Quote:
Originally Posted by ghrocketman
I could really get "on board" with this "Rocket Jarts" game.

If we could get 1/2A6-0 or 1/2A3-0T motors again it would be a bit easier to "dial in"

Them's for puskies, chump! Go big or go home!
__________________
Bill Eichelberger
NAR 79563

http://wallyum.blogspot.com/

I miss being SAM 0058

On the build floor: Estes PemTech Kraken, Semroc S.P.E.V

Rediscovered: Semroc Laser X, Semroc SLS Laser X

In paint: Centuri Stellar Hercules, Centuri Zebra II, Estes Alpha, Estes Monarch, Semroc Squire

In the body shop: Estes Jayhawk, TLP Perseus

Ready to fly: Estes Astron Farside X, Estes Astron Apogee, FRW Star Jart
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