Ye Olde Rocket Forum

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


Reply
 
Thread Tools Search this Thread Display Modes
  #21  
Old 06-01-2019, 06:31 PM
erik442's Avatar
erik442 erik442 is offline
The Alpha Kid
 
Join Date: Mar 2012
Location: central PA
Posts: 87
Default

Decals installed!
Attached Thumbnails
Click image for larger version

Name:  full_decal.JPG
Views: 55
Size:  161.5 KB  Click image for larger version

Name:  top_decals.JPG
Views: 52
Size:  112.7 KB  Click image for larger version

Name:  mid_decals.JPG
Views: 43
Size:  153.6 KB  
Reply With Quote
  #22  
Old 06-22-2019, 11:07 PM
erik442's Avatar
erik442 erik442 is offline
The Alpha Kid
 
Join Date: Mar 2012
Location: central PA
Posts: 87
Default

Launch lugs finished and attached. Just received some G77 motors in the mailbox. Recovery system nearly complete.
Reply With Quote
  #23  
Old 06-22-2019, 11:15 PM
Earl's Avatar
Earl Earl is offline
Apollo Nut
 
Join Date: Dec 2006
Posts: 1,786
Default

You've put a lot of time and effort into this model, but it looks like it has come together very well.

Here's looking towards a very successful flight report decorated with spectacular launch photos!


Earl
__________________
Earl L. Cagle, Jr.
NAR# 29523
TRA# 962
SAM# 73
Owner/Producer
Point 39 Productions

Rocket-Brained Since 1970
Reply With Quote
  #24  
Old 09-28-2019, 02:32 PM
erik442's Avatar
erik442 erik442 is offline
The Alpha Kid
 
Join Date: Mar 2012
Location: central PA
Posts: 87
Default

Thanks for the compliment, Earl.
Too bad things didn't originally go as planned, but I now have the Soyuz all fixed up better than new. The crash was beneficial in identifying structural weak spots. (See Mission Control: August 11 Launch report) All the broken pieces have been reassembled and I've done a lot of internal reinforcing. I made bracing from .039 piano wire and attached it at the bottom to limit twisting of the boosters. It worked very well. The whole assembly is much more rigid.
Everything got a fresh coat of paint and I have upgraded the recovery system to 400lb. Kevlar.
All cord connections will now utilize split rings. It seems that the crash was due to the Kevlar cutting itself. I had tied small bowline knots on all the cord ends and the connected loops cut through each other when subjected to the forces of deployment. The 30" parachute that I wanted to use won't fit, so I may try two 18" and hope they don't get tangled up.
The weather here is exceptional and I want to try to fly it again soon.
Attached Thumbnails
Click image for larger version

Name:  components.JPG
Views: 25
Size:  930.3 KB  Click image for larger version

Name:  braces.JPG
Views: 28
Size:  970.0 KB  Click image for larger version

Name:  booster_restored.JPG
Views: 21
Size:  1.72 MB  
Reply With Quote
  #25  
Old 09-28-2019, 02:37 PM
ghrocketman's Avatar
ghrocketman ghrocketman is offline
President, MAYHEM AGITATORS, Inc.
 
Join Date: Jul 2005
Location: Michigan
Posts: 9,371
Default

The Aerotech H128 is under FAA propellant weight limits requring a HPR waiver.
__________________
When in doubt, WHACK the GAS and DITCH the brake !!!
No Harm=NO Foul advocate

If you are NOT FLYING LOW in the left lane, you need to GET THE #$&@ OUT of it !

Yes, there is such a thing as NORMAL
, if you have to ask, you probably aren't
!
Reply With Quote
  #26  
Old 09-29-2019, 10:22 PM
erik442's Avatar
erik442 erik442 is offline
The Alpha Kid
 
Join Date: Mar 2012
Location: central PA
Posts: 87
Default

I don't have an L1 certification or a big enough flying field, so I'll have to stick with the G motors.
Except for the delay being too long, I thought that G80 worked fine. It just had too much velocity when the chute deployed, which no doubt contributed to the Kevlar failure. I think your suggestion of a 4 second delay was spot on. I just couldn't get one to ignite. I didn't know until now that some propellants are easier to light than others.
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 10:41 PM.


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