Ye Olde Rocket Forum

Go Back   Ye Olde Rocket Forum > Work Bench > Vendors
User Name
Password
Auctions Register FAQ Members List Calendar Today's Posts Search Mark Forums Read


Reply
 
Thread Tools Search this Thread Display Modes
  #331  
Old 01-29-2019, 03:25 AM
blackshire's Avatar
blackshire blackshire is offline
Master Modeler
 
Join Date: Jan 2009
Location: Fairbanks, Alaska
Posts: 5,726
Default

Quote:
Originally Posted by BEC
Oh now there's a thought. I have a Mitosis, built from an old MRN plan. Hmmmmmmmmm......
Yes, that's the one (the Mitosis) that I could picture but not name as I wrote that last posting. Stine also mentioned that nose-blow recovery (mid-body break-apart should work just as well) is also sometimes used for the upper stages of multi-stage models, to ensure that they'll land on the launch field (a "threaded"-on-shock-cord, narrow metallized streamer would sparkle in the sky, aiding descent tracking).
__________________
Black Shire--Draft horse in human form, model rocketeer, occasional mystic, and writer, see:
http://www.lulu.com/content/paperba...an-form/8075185
http://www.lulu.com/product/cd/what...of-2%29/6122050
http://www.lulu.com/product/cd/what...of-2%29/6126511
All of my book proceeds go to the Northcote Heavy Horse Centre www.northcotehorses.com.
NAR #54895 SR
Reply With Quote
  #332  
Old 01-31-2019, 02:03 PM
BEC's Avatar
BEC BEC is offline
Master Modeler
 
Join Date: Feb 2009
Location: Auburn, Washington
Posts: 2,396
Default

Quote:
Originally Posted by BEC
Also....I emailed with Karl at Aerotech about the C12-4s with 7 second delays (posts 312 and 313 above) and it was from him I got the idea that there are some "at large" that have been mislabeled. However I immediately wrote back asking if they knew what date codes were involved, he has not yet replied. It's been a couple of weeks....


I heard from Karl this morning. From the tone of it, I think he was frustrated that he couldn't give me a better answer. The bottom line is they believe that the mislabeling issue is sorted out as of 11/1/18 production but before that, he can't say which ones may be incorrect.

So, especially with labeled C12-4s, I'd not fly pre 11/1/18 ones in a model that a full six-second delay would cause a crash or near crash, though I have flown some that were correct (or looked that way in models I didn't have an AltimeterThree aboard) as well as ones which clearly ran long (and were likely really C12-6s).

I can also say that post 11/1/18 motors are out there as I got some C12-4s from jonrocket.com fairly recently that are 11/13/18 and a pack of D12-6s that are 11/1/18.
__________________
Bernard Cawley
NAR 89040 L1 - Life Member
SAM 0061
AMA 42160
KG7AIE
Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump



All times are GMT -5. The time now is 01:30 PM.


Powered by: vBulletin Version 3.0.7
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
Ye Olde Rocket Shoppe 1998-2019