All Rocketry Blogs

Sport Rocketry / Cold Power Rockets

    Rocket Dungeon: Cold power returns with a Sharpie rocket (2009-02-25)
    Office Supplies Rocket - video powered by Metacafe See the instructable for the entire how-to. [Read More]

    Rocket Dungeon: Cold Power rocketry (2009-08-24)
    The graybeards of model rocketry, and many younger fan-atics, will undoubtedly know more about Vashon and Estes Cold Power rockets than I, and I won't make this a tutorial. These rockets/motors ... [Read More]

    Rocket Dungeon: A cold-power rocket made Gizmodo's top 26 of 2009 (2009-12-18)
    {First, I decided that I'm not going to compile a list of interesting 'top lists' this year like I did last year .  Instead, I post separately on those that strike me as interesting.} Gizmodo ... [Read More]

    Model Rocket Building: Vashon Valkyrie 2 on Ebay (2014-04-10)
      This one brought me back! I bid on this one - up to $150.00, that's a lot for me. I didn't get it, the winning bid was over $281.00. This is a rare one, unbuilt with launcher and ... [Read More]

    Model Rocket Building: Coldpower Convertibles? (2017-01-02)
    Dave Oplinger posted a question on the Model Rocketry Fanatics Facebook page: "So, what was the deal with these cold propellant engines that Estes had at one time? Did anyone have one? How did they ... [Read More]

    Model Rocket Building: Some Vashon Videos and Links (2017-05-31)
    While doing some searches for Vashon Cold Propellant (Freon) Rockets I came across this website: http://www.videorocketry.com/Vashon/vashon.html It looks like it is linked to the Clay Brothers Video ... [Read More]

    Rocketeer's Corner: This old dog learns a new trick... (2017-10-15)
    Things have been busy this weekend - I have the Centuri Groove Tube painted and ready for decals, my scratch-built Probe-18 is repaired and has a new payload section, the Gyroc clone and eBay rescue ... [Read More]

    Blast From The Past: Back In The Day, Part #10: Launching Model Rockets From A Broom Closet! (2018-04-05)
        This post is an account of a demonstration launch that occurred back in the summer of 1976 in Limon, Colorado.   I had posted this same story on a previous version of this ... [Read More]

    Model Rocket Building: Cold Propellant Model Rocket Safety Code (2018-09-10)
    In the blog comments, a question came up about substantial metal in a Vashon model rocket. Tom's comment:  "I was under the impression that metal body tubes weren't allowed . . ." My response: ... [Read More]

    Model Rocket Building: Estes Honest John to EAC Firecat? (2020-03-18)
    After looking closer at the Estes E.A.C. Firecat kit, I thought at first the fins might be from the old K-27 Honest John kit. The instructions have you cut up the HoJo die-cut balsa to make the ... [Read More]

    Model Rocket Building: Comparing the Vashon Jet Powered Planes (2021-02-04)
    Vashon Model Rockets have always held a special place for  me. In 1969 they were the only rockets we could launch in California. The state's black powder fireworks regulations were strict! ... [Read More]

    Rocket Dungeon: ROCKETS Magazine, December 2009 (2010-01-04)
    Among other things, the holidays (along with the cold weather) have pushed my rocketry reset button.  My two ongoing project need paint and that isn't happening any time soon.  To the ... [Read More]

    Randy's Rocketry Blog: eBay (2011-03-23)
    I saw this Estes Vashon V-1 cold power rocket engine for sale on eBay recently. I don't ever remember seeing these as a kid but I think I would have been drawn to it. A blackpowder motor is ... [Read More]

    Model Rocket Building: Letter about Vashon Models (2013-06-09)
    Here's a letter of response about the old Vashon Rockets. I thought it might be interesting for the blog. The illustration at the right was almost the same Sears catalog listing I ordered my ... [Read More]