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  1. J

    Found Dynacom 3.3" Coupler, nose cone, and airframe tube

    Where are you guys getting anything from Dynacom - didn't they turn into Air-X and then out of business? I had a Yellow Jacket - everything just fit, smooth as silk. Poor thing just don't do well from a 13K drop on it's nose into playa! Love that design! Wish I had ordered a few more before...
  2. J

    Favorite memory of your childhood

    I was 4 1/2 years old and lived in Coco Beach in mid-fifties. Every time we saw Military Police cars going up and down the main road in town, we headed to the beach. A rocket launch was going to happen!!! So many great rockets and the failures were great too!
  3. J

    Rollerons in HPR

    Long ago and far away - there was an article in High Power Rocketry magazine from some guys from RRS that documented their design. If you know someone with complete set of HPR or you could contact rrs.org and maybe they can send you a copy.
  4. J

    ROTW - Rockets of the World . . . QUESTION

    Your knowledge is far more in this area then mine, the FrameMaker book build was alway my deliverable . Peter may want offline to discuss with you, the advantages and disadvantages and how to go about itI I am LOOKING FORWARD TO NEXT RELEASE! - John
  5. J

    ROTW - Rockets of the World . . . QUESTION

    Well, I have read the whole thread and here are my thoughts: - Peter has put in a lot of effort over many years in collecting this rocket data. Our legal system says he owns it ! He can sell copies of it or place it in the drawer under the kitchen counter and never look at it again. I do wish...
  6. J

    Building a liquid engine

    The guys you want talk to are: Rocket Research Society - www.rrs.org They have been doing liquid stuff since 1943 and are very helpful.
  7. J

    Murphy strikes again.

    Both my local Ace Hardware’s carry 2” and smaller. And a good auto parts store, sometime they carry snap rings. John
  8. J

    Sold Big Red Bee 70cm equipment

    What do you want for the transmitters if you sell the radio to Davdue ?
  9. J

    A few questions about BALLS attendance

    MClark --> I used to run BALLS, I now only have a minor role. And you did a very fine job of it - You have set the bar very high for the guys that come after you. Thank you for the many years of the BEST LAUNCH OF THE YEAR !!! -John Urbanski TRA-1416 (when I remember to send in the dues)
  10. J

    Free Astrobee D scale data!

    It can be hard to locate scale data on these older rockets and the data packets are a wonderful resource. I want to thank Aerojet for providing these Sounding Rocket data packets.
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