- This topic has 5 replies, 4 voices, and was last updated 18 years, 4 months ago by
denverdoc.
denverdoc.-
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Jeffrey Joe Hinton
Four fun events slated for the Pawnee Pioneer Open on Saturday June 2nd. Contest open to all flyers. A Parachute Duration, D Streamer Duration, E Boost Glider (RC allowed) and F Super-Roc Duration. $1.50 per event or the full deal for $5.00. Registration on site only. Start building. NAR Sanctioned opportunity to earn bragging rights and points. Contest will be conducted in accordance with the U.S. Model Rocket Sporting Code and the NAR Safety Code.
Chris LaPanse
This sounds like a lot of fun.
Time to start building – I have a lot of ideas to try 😀
Bruce R. Schaefer
If anyone has any questions on any of the events, post them here. I will answer them, and if they need NAR’s Western Region Contest Director’s answers, I’ll ask him and post his response. I was going to post the details of each contest, but most of us have a NAR Pink Book. If not, you can get it online at: http://www.nar.org/pinkbook/index.html 😉 C’mon, let’s have some fun! 8)
denverdoc
yes, I have one which is likely in a gray zone. The Pink Book forbids using arrow shafts etc in the construction of a superroc. I can imagine a continuum from arrow shaft or the likes to will o’the wisp 1.1 oz carbon fiber being rolled into a cylinder. Under the right circumstances you have the straw thru a board phenomenon. Also are there any rules prohibiting the use of tensioning lines as in guy wires?
Bruce R. Schaefer
The Pink Book forbids using arrow shafts etc in the construction of a superroc.
“33.3 Construction: Entries with bodies or significant structural parts made from hard or potentially unsafe material (e.g., hardwood doweling or fiberglass shaft) shall not be allowed, under the provision of rule 1.1.”
“1.1 Model Rocket: … and that contains no parts, particularly metal parts that are likely to create a hazard.”
This is what you’re referring to, and from the mention of fiberglass, I thought it can’t be used, but it can. Just not as a shaft. That, uh, would make a Javelin a real javelin. John, just can’t be a solid shaft of carbon fiber. And, there’s nothing wrong with using transitions to a carbon fiber tube. Key word is tube, not shaft. Hush your mouth… just talkin’ about shaft. Sorry, took a left turn. However, using wire in a tension line is prohibited, since it’s metal. Use Kevlar. Sound right, Joe?
denverdoc
Bruce,
Thanks. Yea “wire” was the wrong term. Kevlar is what I intended to use if necessary, but have never seen it used nor expressly prohibited.
Jeffrey Joe Hinton
Chris LaPanse
Bruce R. Schaefer
denverdoc
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