 |
 | Home | Contact Us | FAQ | Search & Site Map | Link to Us |
 | Sign In | Join | Other 45 Sites in Network |
| HomeDiscussion Groups General ModelsRailroadsRocketsRadio Controlled Air ModelsHelicoptersLand ModelsWater ModelsModelGeeks.com Contact UsLink To UsSearch & Site Map |
Model Forum / General / Rockets / September 2007[Planet News] R115: NAR S&T New Motor Certifications
News Release by NAR Standards & Testing Monday, September 17, 2007 MARION, Iowa USA — The following motors have been certified by NAR Standards & Testing for general use Model Rocket Motors effective August 31, 2007. The F23FJ is a new certification of an existing motor with a propellant mass reduction to 30 grams to ease shipping requirements. Aerotech/RCS(AT): F23FJ-4,7 (S) 29mm x 83mm 41.2 Newton-seconds total impulse 29.8 Newtons Peak Thrust 18.58 Newtons Average Thrust Propellant mass: 30.0 grams G53FJ-5,7,10 (R) 29mm x 124mm 29/40-120 Hardware 90.9 Newton-seconds total impulse 87.3 Newtons Peak Thrust 53.1 Newtons Average Thrust Propellant mass: 60.0 grams Propellant Key: FJ = Black Max Propellant Motor Type Key: R = Reloadable Motor S = Single Use Motor Jack Kane John Lyngdal NAR Standards & Testing  SignatureAt first there was just one planet. And then there were two... Rocketry Planet (http://www.rocketryplanet.com) and now Our Planet (http://our.rocketryplanet.com)! >News Release by NAR Standards & Testing >Monday, September 17, 2007 It's pretty lame that the NAR has to have someone else distribute their S&T notices. You'd think that a bunch of nerdy rocket types might have one nerdy computer time who could set up a web site for them. >Aerotech/RCS(AT): > [quoted text clipped - 3 lines] >29.8 Newtons Peak Thrust >18.58 Newtons Average Thrust So, the 18.58ns is 19.5% off of the 23ns implied by the name. This is really an F19, not an F23. Glen Overby From their perspective, it's much easier to send a few press releases than post it to a zillion different places. As far as the web site goes, it seems like someone out of all the NAR membership would be able to help out. With all the computer geeks in rocketry, I wonder why the site isn't better. For anyone that cares, an AT L class motor costs ~ $150. The chemicals to make it cost ~$25 and the liners might be another $10 or there abouts. Think about it. Phil >>News Release by NAR Standards & Testing >>Monday, September 17, 2007 [quoted text clipped - 15 lines] > >Glen Overby >For anyone that cares, an AT L class motor costs ~ $150. The >chemicals to make it cost ~$25 and the liners might be another $10 or >there abouts. Think about it. I've been to Aerotech's facility in Cedar City. I seem to recall they ended up spending around $2 million for that facility and insurance only paid a portion. There is also labor, insurance costs (probably sky high), other overhead, government permits, motor testing costs, and retail markup before the motor hits the dealer. Why does a hamburger at McDonald's cost more than just the price of the ingredients? If you can sell certified L motors for $35 you would have a ton of orders, but you wouldn't last long in business unless you poured your wn cash into the venture to subsidize it. > >For anyone that cares, an AT L class motor costs ~ $150. The > >chemicals to make it cost ~$25 and the liners might be another $10 or [quoted text clipped - 14 lines] > orders, but you wouldn't last long in business unless you poured your wn > cash into the venture to subsidize it. Which brings up the question........how many millimeters is Freds butt hole, and would a L size motor fit or would you need a motor adapter to reduce it down in size. Could ee safely endure a biggie sized ejection charge or would you have to stay with standard charge. I would hate to see his rhoids stressed anymore than they already are.............but it could be a whole new concept for recovery devices......Streaming rhoids.............flapping in the breeze would definately upset aerodynamics and slow Freddie boi down. Kiss this account goodbye. >>For anyone that cares, an AT L class motor costs ~ $150. The >>chemicals to make it cost ~$25 and the liners might be another $10 or [quoted text clipped - 14 lines] >orders, but you wouldn't last long in business unless you poured your wn >cash into the venture to subsidize it. Latty f'in dah. Did I say someone should sell L motors for $35? Read what I said a few times. If you still don't understand what I said, ask me a question. BTW - certifying costs $25.00 to the testing organization plus your cost of the reloads, overhead, R&D etc. >From their perspective, it's much easier to send a few press releases >than post it to a zillion different places. How about posting it in one place, the NAR web site? >As far as the web site goes, it seems like someone out of all the NAR >membership would be able to help out. With all the computer geeks in >rocketry, I wonder why the site isn't better. In the final issue of the 'Model Rocketeer', the prez' said they had deployed new "technology" to allow better web site updates. Thats why MR was being discontinued. >>From their perspective, it's much easier to send a few press releases >>than post it to a zillion different places. > >How about posting it in one place, the NAR web site? TO easy, >>As far as the web site goes, it seems like someone out of all the NAR >>membership would be able to help out. With all the computer geeks in [quoted text clipped - 3 lines] >new "technology" to allow better web site updates. Thats why MR was being >discontinued. That's funny. Now all they have to do is use it. > From their perspective, it's much easier to send a few press releases > than post it to a zillion different places. [quoted text clipped - 8 lines] > > Phil Hey Phil, you are giving away the class secrets on motor making..(:-) BTW, found a good way to filter out the unwanted trash mouth folks like Roid: took care of him last night. Getting ready to place "The Duke of Earl" in the same can. You missed a somewhat interesting launch on Sunday. Chuck Loveday's X-15 was "really cool"; but not in a good way. Video should be up on the web site soon. If you haven't looked at the web page lately; Red Glare is scheduled for the 19th through the 21st of October. Looks like we may have one or two special guests from NASA on Saturday or Sunday; haven't worked out all the details yet. Fred >> From their perspective, it's much easier to send a few press releases >> than post it to a zillion different places. [quoted text clipped - 23 lines] > >Fred I'm planning on being there Saturday & Sunday. Can't wait to see the video. Can you please call me? |
Reply to this Message |
 Sign In
 Join
 My Latest Posts My Monitored Threads My Blog My Photo Gallery My Profile My Homepage Start New Thread Enable EMail Alerts Rate this Thread
|
©2012 Advenet LLC Privacy Policy - Terms of Use
This website includes both content owned or controlled by Advenet as well as content owned or controlled by third parties.