Ye Olde Rocket Forum

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


Reply
 
Thread Tools Search this Thread Display Modes
  #11  
Old 04-21-2009, 06:42 AM
jflis jflis is offline
FlisKits, Inc.
 
Join Date: Mar 2005
Location: Merrimack, NH (wish it were Alaska :) )
Posts: 795
Default

Quote:
Originally Posted by tonypv
Do you mean the CG?


Tony, you missed the perfect opportunity! You should have responded "Loaded it with the motors and it's in Haverhill"... LOL

Sorry, I'll slink away now...
__________________
FlisKits, Inc.
http://fliskits.com/
Model rocket kits and MORE!

Toad's Tavern - http://toadstavern.com/
Personal site - http://jflis.com/
Reply With Quote
  #12  
Old 04-21-2009, 07:36 AM
tbzep's Avatar
tbzep tbzep is offline
Dazed and Confused
 
Join Date: Mar 2005
Location: TN
Posts: 10,548
Default

Quote:
Originally Posted by tonypv
Do you mean the CG?


Yep. I guess I deleted it and didn't retype it after fixing a different screw up.
__________________
I love sanding.
Reply With Quote
  #13  
Old 04-21-2009, 12:42 PM
zog139 zog139 is offline
Rocketry is Fun.... Darn It !
 
Join Date: Mar 2007
Location: Maryland
Posts: 212
Default

I added lead shot to mine to ballast the (4) 18 mm motors as well as (4) A10 for effect. I took the CG that George reccomended in his drwaing and used that as a reference.

Using 30 minute epoxy had no effect on the exterior detailing of the capsule
__________________
Jim Filler
NARHAMS # 139
NAR CB - RCPC
Reply With Quote
  #14  
Old 04-21-2009, 04:33 PM
tonypv's Avatar
tonypv tonypv is offline
And so it begins...
 
Join Date: Apr 2007
Location: Haverhill, MA
Posts: 106
Default

Quote:
Originally Posted by tbzep
Cool. Next time you think about it, could you load it up with your heaviest motor combination (4 C6's?) and let us know where your CG is?


Loaded with 4 C6-5s and a 30" nylon chute (no wadding, I have a baffle at the forward end of the stuffer tube) the CG is 11 1/4" from the bottom.
__________________
Tony Vincent
NAR # 45082 L1
CMASS, MMMSC Member
Reply With Quote
  #15  
Old 01-28-2021, 03:49 PM
Rocketcrab Rocketcrab is offline
Wasted away again.......
 
Join Date: Jul 2005
Location: M&T Bank Stadium
Posts: 258
Default

Quote:
Originally Posted by jpaw33
The capule is going to be used on a semroc saturn 1b,since the dog ate the orginal capsule,the rocket will have two piece seperation,so the capsule will need a mount for the parachute only.Will it need nose wieght?Thanks


Pulling this golden nugget out of the vault I am finally getting around to completing my SEMROC Saturn 1B that I started in 2007 Over the last 50 years or so, I've built several of the original Estes Apollo capsules. Now in my mid-60's I'm not going to go through that again. So I bought the Apogee capsule kit, and just as jpaw33 asked years ago, any suggestions on the parachute attachment point? From what I've gathered on this thread, adding nose weight to this particular version of the 1B isn't needed. My original thought was to cut out a disc of either balsa or basswood and insert it into the base of the Apollo capsule, but I'm leery of gluing wood to plastic.
__________________
Got a Caribbean soul I can barely control.....
Reply With Quote
  #16  
Old 01-28-2021, 07:49 PM
jeffyjeep's Avatar
jeffyjeep jeffyjeep is offline
Old Submariner
 
Join Date: Jan 2009
Location: Home of Wayne & Garth
Posts: 6,818
Default

Quote:
Originally Posted by Rocketcrab
Pulling this golden nugget out of the vault I am finally getting around to completing my SEMROC Saturn 1B that I started in 2007 Over the last 50 years or so, I've built several of the original Estes Apollo capsules. Now in my mid-60's I'm not going to go through that again. So I bought the Apogee capsule kit, and just as jpaw33 asked years ago, any suggestions on the parachute attachment point? From what I've gathered on this thread, adding nose weight to this particular version of the 1B isn't needed. My original thought was to cut out a disc of either balsa or basswood and insert it into the base of the Apollo capsule, but I'm leery of gluing wood to plastic.


That's exactly how I always do it: I cut a disk out of 1/8" plywood. I bevel the plywood edge somewhat to add more surface area to the attachment. Rough up the inside of the capsule with 220 grit sandpaper and use 30 minute epoxy. It won't come off.
__________________
Never trust an atom. They make up everything.

4 out of 3 people struggle with math.

NAR# 94042
SAM# 0078
Reply With Quote
  #17  
Old 01-28-2021, 08:13 PM
Rocketcrab Rocketcrab is offline
Wasted away again.......
 
Join Date: Jul 2005
Location: M&T Bank Stadium
Posts: 258
Default

Thank you sir!!!
__________________
Got a Caribbean soul I can barely control.....
Reply With Quote
  #18  
Old 01-28-2021, 08:49 PM
luke strawwalker's Avatar
luke strawwalker luke strawwalker is offline
BAR
 
Join Date: Dec 2007
Location: Needville and Shiner, TX
Posts: 5,986
Default

Quote:
Originally Posted by jeffyjeep
That's exactly how I always do it: I cut a disk out of 1/8" plywood. I bevel the plywood edge somewhat to add more surface area to the attachment. Rough up the inside of the capsule with 220 grit sandpaper and use 30 minute epoxy. It won't come off.


Yep use epoxy that's what it's for... OL J R
__________________
The X-87B Cruise Basselope-- THE Ultimate Weapon in the arsenal of Homeland Security and only $52 million per round!
Reply With Quote
  #19  
Old 01-28-2021, 11:54 PM
ghrocketman's Avatar
ghrocketman ghrocketman is offline
President, MAYHEM AGITATORS, Inc.
 
Join Date: Jul 2005
Location: Michigan
Posts: 11,252
Default

I mixed 1oz of #12 lead shot with 15min epoxy and poured into mine, with a screw-eye centered in the mix.
15min epoxy does not heat up much either. It's 15min WORKING time, not cure time.
Just don't use 5min epoxy. That stuff gets HOT.
__________________
When in doubt, WHACK the GAS and DITCH the brake !!!

Yes, there is such a thing as NORMAL
, if you have to ask what is "NORMAL" , you probably aren't
!
Reply With Quote
  #20  
Old 01-31-2021, 07:31 AM
PaulK's Avatar
PaulK PaulK is offline
BAR
 
Join Date: Nov 2005
Location: WI
Posts: 1,437
Default

Quote:
Originally Posted by Rocketcrab
Pulling this golden nugget out of the vault I am finally getting around to completing my SEMROC Saturn 1B that I started in 2007 Over the last 50 years or so, I've built several of the original Estes Apollo capsules. Now in my mid-60's I'm not going to go through that again. So I bought the Apogee capsule kit, and just as jpaw33 asked years ago, any suggestions on the parachute attachment point? From what I've gathered on this thread, adding nose weight to this particular version of the 1B isn't needed. My original thought was to cut out a disc of either balsa or basswood and insert it into the base of the Apollo capsule, but I'm leery of gluing wood to plastic.
I extended the shoulder about 1.5", using some pieces of body tube, added weight to the aft end, and attached a bit of kevlar near the balance point, so it would fall mostly flat with a slight tower-up angle.
__________________
Paul
If we weren't all crazy, we would go insane - Jimmy Buffett
NAR #87246 www.wooshrocketry.org
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 07:20 AM.


Powered by: vBulletin Version 3.0.7
Copyright ©2000 - 2021, Jelsoft Enterprises Ltd.
Ye Olde Rocket Shoppe 1998-2021