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  1. Cory

    Drogue in HEDD

    I’ve used HEDD (head end dual deploy) successfully a few time in a 3” Punisher and have seen many more in various sizes. Usually the main is placed inside the NC and the apogee event separates the NC+Switchband with the avionics from the payload section and the main event blows the NC off the...
  2. Cory

    Tru-Core Status

    Made an order recently through the Tru-Core website, https://www.rocketsaway.com/ , 5/29/2020. Received a confirmation email and my money was accepted through PayPal. Sent an email request a week later for a status update....dead air....Sent another email just now requesting an approximate lead...
  3. Cory

    POTROCS Launch Reports

    I do not like to start a thread, making only one or two post and it die with no relevant information ever added. This is how my flight report threads of the past have gone, so I decided to try something different – This is going to be a thread dedicated to flight reports for/from POTROCS...
  4. Cory

    Wildman Mach 3 Rocksim

    Looking for a Rocksim (.rkt) file for Wildman's Mach 3. Not finding it on the WM website or through Google. I will have the parts soon enough to make one, just want to start playing around with it.
  5. Cory

    Ultimate Level 3

    Recently received approval from two TAPs and started working on my L3 project. I have made some good early progress over the last couple of weekends and figured it was time to get a build thread going to document the journey. HERE is a link to the Flikr album that will be updated as I go along...
  6. Cory

    Discovering Balls

    I'm officially underway and will chronicle the adventure to and with luck eventual flight reports from Balls 24 here. Hopefully Balls veterans will chime with some insights for me and other first time travelers to the playa and enjoy the debacles almost sure to occur along the way. Typing this...
  7. Cory

    POTROCS 4.12.2015

    Sunday afternoon POTROCS hosted its first launch of the season. The primary launch day (Saturday) was pushed due mostly to cloud cover and high winds. The wind laid, but the cloud cover cancelled a few flights for the day under the reduced waiver. Most notably was a University team from Missouri...
  8. Cory

    Started a grassfire with NO ROCKETS ON SITE

    I recently began building and testing motors. When I approached my friend who owns land near town even after explaining the risks he was almost as excited as I was to get started. After plowing the area we set up the stand in a dried up pond bed. After almost 7 years being dry, the water system...
  9. Cory

    GOALBUSTING - Dual 3" Builds

    Okay good folks of TRF, working on a few builds and wanted to document the process. Banter, advice, derailments, criticism, and all things applicable to the builds and the greater hobby are welcomed. I am not easily offended, and my sense of humor seems often lost in text only communication, but...
  10. Cory

    Remembering AIRFest XX

    Definitely a little late, but keeping with the "back it up with data" montra I've seen around in more than one thread I wanted to recap my AFXX flights. First though, I want to sincerely thank anyone and everyone who has made such a fun event possible for 20 years running! Not great with names...
  11. Cory

    Percent Impulse Calculation

    I maintain a spreadsheet with different rocketry related calculators for my personal use for things like proper port diameter, BP sizing, and thrust-weight ratio. I have seen several places where the impulse is expressed as a percentage of the letter designation i.e. a 320 N/sec motor is...
  12. Cory

    FIN JIG FAIL

    I am working on a 54mm MD build, and wanted to be able to properly bevel the leading and trailing G10 fin edges. I reviewed many plans, particularly liking John Coker's version shown here https://jcrocket.com/finbevels.shtml. I recently purchased a harbor freight bench top belt sander...
  13. Cory

    Madcow 2.56" ARCAS

    I have spent tons of time trolling build threads, and finally decided to try one for myself. I will be building a MC ARCAS, planning on DD using a Stratologger for deployment control and BRB 900 for tracking. I decided to start with the e-bay. I am using a LOC e-bay, I first cut the mounting...
  14. Cory

    Rocket Workshop/Wife's Storage

    I wanted to start this thread to document the set up of my first personal rocket lair. I was bit by the HPR bug hard early last year after re-discovering rocketry in 2012, and built multiple LPR and MPR rockets on the kitchen table. The kitchen table was fine for wood glue and non-toxic work...
  15. Cory

    2 Altimeters 1 Switch

    I built a redundant DD set up for my RW Formula 98 using a Stratologger as the primary event controller and a RRC3 performing as back-up, I have both altimeters wired to a single four pole, common rotary type switch. - https://doghouse.blastzone.org/switches.html...
  16. Cory

    MMT Length vs. Motor Length and CTI Ejection Removal

    I am currently building a Formula 98 from Rocketry Warehouse for a L2 cert flight. I would eventually like to try a long burn motor such as the CTI K160. I am using Proline 4500 epoxy for fin mounting for its ability to withstand high temperatures, but the motor mount is 12" where a K160 is...
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