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  1. jsdemar

    Spacex launch from 900 miles away

    Photos taken from my patio tonight in Las Cruces NM of the Starlink launch out of Vandenberg CA.
  2. jsdemar

    YF-118G 'Bird of Prey': The First True Stealth Aircraft

    https://nationalinterest.org/blog/buzz/yf-118g-bird-prey-first-true-stealth-aircraft-210332
  3. jsdemar

    My V2 landed on Mars

    I built an Estes BT-80 V2 kit about 28 years ago. Basswood fins and Titebond II. It's flown probably 100 times. But never on an F... until today. We lost it after burnout. I got a nice 2-mile walk in looking for it. As we were driving off the launch site, I found it. It landed on Mars, near the...
  4. jsdemar

    2024 Spaceport America Cup Teams selected

    From the ESRA Facebook page: Congratulations to all of the selected teams. ESRA and Spaceport America look forward to working with you over the next 7 months! NEW MEXICO BOUND!!!! https://www.soundingrocket.org/2024-sa-cup.html
  5. jsdemar

    Energetics Safety Circuits

    Maybe the Admins can trim this thread and start a new one on Pad Box safety. Here's my design. It has gone through revisions since 1996. The pad box will work with a wired length of orange extension cord, or as part of a wireless system. There's an audible screaming alarm if the relay is stuck...
  6. jsdemar

    Looking for CTI Pro150 40K hardware

    I've looking for the hardware set for a CTI Pro150 40K (O8000) in used but flyable condition. Please PM me here or email me at [email protected] . Thanks!
  7. jsdemar

    Sold Rocketman 50-foot Parachute!

    New huge 50-foot Rocketman parachute, looking for a new home. Never used. It wants to fly! Rated for up to 463 pounds at 15 ft/sec descent rate. More info near the bottom of this page. Red and white. High quality material and workmanship. Comes with a Kevlar deployment bag for an...
  8. jsdemar

    RocketPy - Python simulation library

    Has anyone had a chance to try this Python library for rocket flight simulations? Strictly manual coding, no user interface. https://docs.rocketpy.org/en/latest/index.html https://github.com/Projeto-Jupiter/RocketPy/ I wonder how well it handles transonic and high altitudes. Would be...
  9. jsdemar

    Sold Estes engines on Craigslist - near Fayetteville AR

    I stumbled across this listing on Craigslist... in case anyone is close by: https://fayar.craigslist.org/tag/d/gateway-estes-rocket-motors-engines/7414684074.html
  10. jsdemar

    Sold Geeky Lunar Eclipse and Photo Gifts

    Here are two designs based on my series of photos of the Lunar Eclipse. Zazzle has everything at 1/2 price on Black Friday.... https://zazzle.com/store/universe_of_fun Use code BLACKFRI2021
  11. jsdemar

    Sold Kate 1.0 - Complete System, never flown

    Like new, unused, Kate 1.0 talking GPS tracker system. Complete with transmitter, receiver, turn-on coil, cable, batteries, chargers, manual, and custom carrying case. A retail value of $2600. First person to send a PM gets it for $1600. The receiver will also work with a Kate 2.0 transmitter...
  12. jsdemar

    Estes Phoenix and Leviathan auctions ending soon on ebay

    In case anyone is interested, here are the links to my two auctions ending soon. https://www.ebay.com/itm/Estes-PHOENIX-Model-Rocket-Kit-1380-New-Unopened/154229997255 https://www.ebay.com/itm/Estes-Leviathan-Pro-Series-II-model-rocket-kit-9700-new-unopened/154230009399
  13. jsdemar

    Sold Binder Design Galaxy 4" kit

    This Binder Design Galaxy kit has been in its box since 2009, screaming to be built, flown, and enjoyed! A great retro-look with a 54mm mount and metal tail cone. More details here on the Binder Design website. It comes with the red decal and the large silver parachute (+$60 to base retail...
  14. jsdemar

    Sold LOC and PML kits, 25%+ off retail

    I have the following HPR kits that need a new home! ALL KITS ARE SOLD. Prices do not include shipping, but I will try my best to keep it as low as possible. Pickup can be arranged if you're in the NM/AZ region and want to prepay and wait until a launch. Click on the kit name for the...
  15. jsdemar

    Sold Estes Phoenix and Estes Leviathan, on Ebay

    I've listed two unopened kits on Ebay with no reserve price. 7-day auction with time for Christmas delivery, hopefully. Phoenix: https://www.ebay.com/itm/154229997255 Leviathan: https://www.ebay.com/itm/154230009399 My other listings are here: https://www.ebay.com/sch/jsdemar/m.html...
  16. jsdemar

    Sold Estes Titan IIIE model rocket kit, OOP, New, Sealed in Box

    Estes Titan IIIE 1/73 scale model rocket kit. #2019 New, Sealed in box. In production from 1989-1993. Free shipping in the continental US. https://www.ebay.com/itm/154228528547 Rare collectible kit, made in USA. I bought this kit in 1992 and it has been stored well. See photos for condition of...
  17. jsdemar

    Sold Estes / North Coast Interceptor G Kit, OOP

    Opened but complete, North Coast Interceptor G Kit. Out of production. $150 + $25 ground shipping.
  18. jsdemar

    Sold Estes / North Coast SA-14 Archer XL, OOP Kit

    Opened but complete kit. Estes / North Coast SA-14 Archer XL (4" dia, not the 2.6" dia). Out of production. $175 plus $35 ground shipping.
  19. jsdemar

    Sold Estes Mercury Atlas Kit, OOP #2111 1:35 scale

    Unopened, still in shrink wrap, Estes 1:35 Mercury Atlas Kit. Out of production. $195 plus $30 ground shipping. (Currently listed for almost $300 on Ebay with shipping.)
  20. jsdemar

    Sold Kosdon 1"/250N-s hardware and 4 original reloads

    A collector's combo, or go out and fly them! All original from Frank... Kosdon 1" dia x 15" long case (250 N-s) with forward closure, nozzle, and snap rings. Two H200S-14 reloads. Two H265F-14 reloads. 1" to 29mm adapter. Instruction sheet. Total for all is $180.00. I cannot ship this. I will...
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