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
  #22  
Old 01-18-2008, 11:58 AM
ghrocketman's Avatar
ghrocketman ghrocketman is online now
President, MAYHEM AGITATORS, Inc.
 
Join Date: Jul 2005
Location: Michigan
Posts: 9,325
Default

Ugh...groan....
There are WAY too many bad puns in this thread.

FSI always reccommended ridiculously large motors for all their kits.
There is no such thing as a model rocket that should fly on anything from an A to F motor. with hope of a recoverable F flight or a decent A flight.

Fly this one on an over-rated FSI E5-6 (most were under 20n-sec and not even a full-D) and kiss it goodbye. a real E such as an Aerotech E15 would send it into orbit.
__________________
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
  #23  
Old 01-18-2008, 12:22 PM
Doug Sams's Avatar
Doug Sams Doug Sams is offline
Old Far...er...Rocketeer
 
Join Date: Mar 2005
Location: Plano, TX resident since 1998.
Posts: 3,958
Default

Quote:
Originally Posted by ghrocketman
There is no such thing as a model rocket that should fly on anything from an A to F motor with hope of a recoverable F flight or a decent A flight.
My take is most birds have about a 3-letter range with the occasional 4. This goes from MMaxx size to L3. If it flies (and recovers) well on a given motor, going up more than two impulse classes is usually going to put it in orbit.

Doug
Reply With Quote
  #24  
Old 01-18-2008, 10:47 PM
garmtn's Avatar
garmtn garmtn is offline
Craftsman
 
Join Date: Sep 2007
Location: Great Meadows, NJ
Posts: 188
Default Big Rockets require Big Motors

Just finished building "interchangeable" fins for my 51" rocket about a month ago. Not happy when it got stuck on the pad using 3- "C's." In about week I'll be recieving my "E30-4." We'll see if it goes into orbit.
Reply With Quote
  #25  
Old 01-18-2008, 11:03 PM
ghrocketman's Avatar
ghrocketman ghrocketman is online now
President, MAYHEM AGITATORS, Inc.
 
Join Date: Jul 2005
Location: Michigan
Posts: 9,325
Default

Using only 3 C's on any 51" rocket is asking for trouble if it is anything over a BT-60 (just big enough for a 3x18mm cluster) in diameter. Anything this big is begging for at LEAST a full 40n-sec E if not an F.
3 Estes C6's don't even add up to 30 n-sec of total impulse.
__________________
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 01-19-2008, 04:09 AM
garmtn's Avatar
garmtn garmtn is offline
Craftsman
 
Join Date: Sep 2007
Location: Great Meadows, NJ
Posts: 188
Default Clusters

Hi: "Thrust vs Newtons vs wt," r all guides. The first 3 times I launched it, went up without a hitch! The problems arise when only 2 engines ignite or, as in this case, launch rod was dirty. Now I know not to rely on range officer, to clean rods b 4 each launch.
Thanks 4 the concern.
Reply With Quote
  #27  
Old 02-13-2008, 08:33 PM
Vanel Vanel is offline
Master Modeler
 
Join Date: Jun 2005
Posts: 728
Default

This week has been good - custom parts made by the Sandman arrived a few days ago, and now these:



They are absolutely first rate, with very nice decals!!
__________________
Up next:
Under construction:
Under repair:
In finishing:
In primer: Enerjet 1340 clone
In paint:
Ready for decals:

Bill Cooke
NAR #31312
SAM #0001
Huntsville, AL

My rocket blog
My rocket fleet
Reply With Quote
  #28  
Old 02-13-2008, 09:21 PM
A Fish Named Wallyum's Avatar
A Fish Named Wallyum A Fish Named Wallyum is offline
BP Mafia
 
Join Date: Mar 2005
Location: Ft. Thomas, KY
Posts: 7,029
Default

Mine were waiting for me when I came home from the skating rink. It made an otherwise bleak day a lot more tolerable. The only thing that kept me from making serious progress on one was a lack of the correct shade of green for the cone and tube fins. (That's a problem I'll rectify tomorrow.) I'm pretty sure I'll have one ready to fly for the next Quark launch weekend on the 23rd and 24th.
Now I can't wait to see what this month brings.
__________________
Bill Eichelberger
NAR 79563

http://wallyum.blogspot.com/

I miss being SAM 0058

On the build floor: Estes - ESAM-58, Semroc Squire

In paint: Centuri Stellar Hercules, Semroc Thunder Strike, FRW Cherokee E

In the body shop: Estes Jayhawk, TLP Perseus

Ready to fly: Estes Astron Farside X, Estes Astron Apogee, FRW Star Jart, RDC V-Max
Reply With Quote
  #29  
Old 02-13-2008, 09:55 PM
Mark II's Avatar
Mark II Mark II is offline
Forest Sprite
 
Join Date: Dec 2006
Location: Back Up in the Woods
Posts: 3,657
Question

Quote:
Originally Posted by Vanel
They are absolutely first rate, with very nice decals!!

Is that what the Viking I's decals really looked like? I always thought that those illustrations from the 1971 FSI catalog were more "artistic" than "documentary."

Mark
__________________
Mark S. Kulka NAR #86134 L1,_ASTRE #471_Adirondack Mountains, NY
Opinions Unfettered by Logic Advice Unsullied by Erudition Rocketry Without Pity
+09281962-TAK-08272007+
SAM # 0011
Reply With Quote
  #30  
Old 02-13-2008, 10:32 PM
SEL's Avatar
SEL SEL is offline
Officially Middle-Aged Rocketeer
 
Join Date: Mar 2005
Location: Portland, OR
Posts: 1,137
Default

Quote:
Originally Posted by A Fish Named Wallyum
Mine were waiting for me when I came home from the skating rink. It made an otherwise bleak day a lot more tolerable. The only thing that kept me from making serious progress on one was a lack of the correct shade of green for the cone and tube fins. (That's a problem I'll rectify tomorrow.) I'm pretty sure I'll have one ready to fly for the next Quark launch weekend on the 23rd and 24th.
Now I can't wait to see what this month brings.



Mine came in the mail today, too. The "VIKING" part of the decal seems a bit large for the BT, but that's not really a complaint. The parts are first rate - I think I'm going to have to bump this up to the front of the build list .

S.
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 03:08 AM.


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