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
  #1  
Old 05-02-2006, 08:43 PM
Tau Zero's Avatar
Tau Zero Tau Zero is offline
Incurable SEMROC Fan
 
Join Date: Mar 2005
Location: Twin Falls, Idaho, USA
Posts: 2,035
Cool Jay's "Tau Zero"

It seems like the server for Ye Olde Rocket Forum (YORF) has been busy a *lot* lately, so late Sunday night, I actually picked up a project which had lain fallow for a year.

Last year, I sketched out the fin patterns for my original "Tau Zero" design onto graph paper, and "guesstimated" the width of the inner fins. I glued the outer fins to the ring fin, and didn't run into any problems. But gluing the the inner fins onto the main body tube, I suddenly discovered that 1/2 an inch is a *long* ways from 0.4," AND THE RING FIN *DIDN'T FIT!*

So a couple of weeks ago, I finally figured out how to cut the inner fins down (changing the front and back angle, as well as the width), so Sunday I marked, cut, and then sanded accordingly.

I'm always intrigued to see where rocketeers take pictures of their rockets, so I figured the glass-topped table on my back patio would add a new and different background texture. (In the fourth picture, my 8 year old daughter's basketball seems to approve.)


Bill E. and John Thro should also be glad to see that I'm *finally* making progress on this design.


Cheers,

--Jay
Attached Thumbnails
Click image for larger version

Name:  TauZero_01_DSCF0836.jpg
Views: 282
Size:  112.9 KB  Click image for larger version

Name:  TauZero_02_DSCF0837.jpg
Views: 270
Size:  189.4 KB  Click image for larger version

Name:  TauZero_03_DSCF0840.jpg
Views: 303
Size:  157.2 KB  Click image for larger version

Name:  TauZero_04_DSCF0835.jpg
Views: 293
Size:  157.5 KB  

Last edited by CenturiGuy : 09-17-2006 at 03:14 PM.
Reply With Quote
  #2  
Old 05-02-2006, 09:39 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: 7,028
Default

Coo-ell. When do we see the flight report?
__________________
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
  #3  
Old 05-02-2006, 09:48 PM
James Pierson James Pierson is offline
Master Modeler
 
Join Date: Dec 2005
Location: Washington State
Posts: 654
Thumbs up

Very nice design Jay, and also where is that Rocksim file?

James Pierson
NAR# 77907
Reply With Quote
  #4  
Old 05-02-2006, 10:18 PM
Tau Zero's Avatar
Tau Zero Tau Zero is offline
Incurable SEMROC Fan
 
Join Date: Mar 2005
Location: Twin Falls, Idaho, USA
Posts: 2,035
Talking Getting the cart before the horse?

Quote:
Originally Posted by A Fish Named Wallyum
Coo-ell. When do we see the flight report?
(chuckling) After it's glued and painted, silly!

Actually, I just dryfit the parts together for the pics. Then I shot them with the first coat of primer. (I know, I started on this one way back in March of last year, *before* I settled on the "'Fill N' Finish' first, then sand, *then* apply primer" method I've been using lately.)

So at least I'm actually *building* something, Bill.


Cheers,

--Jay
Reply With Quote
  #5  
Old 05-02-2006, 10:20 PM
Tau Zero's Avatar
Tau Zero Tau Zero is offline
Incurable SEMROC Fan
 
Join Date: Mar 2005
Location: Twin Falls, Idaho, USA
Posts: 2,035
Wink About those secret plans...

Quote:
Originally Posted by James Pierson
Very nice design Jay, and also where is that Rocksim file?
It's um, er, (clears throat) ...Classified.

In other words, I could *tell* you...


--Jay
Reply With Quote
  #6  
Old 05-02-2006, 10:47 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: 7,028
Default

Quote:
Originally Posted by CenturiGuy
(chuckling) After it's glued and painted, silly!

Actually, I just dryfit the parts together for the pics. Then I shot them with the first coat of primer. (I know, I started on this one way back in March of last year, *before* I settled on the "'Fill N' Finish' first, then sand, *then* apply primer" method I've been using lately.)

So at least I'm actually *building* something, Bill.


Cheers,

--Jay


Yeah, that's a step in the right direction.
__________________
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
  #7  
Old 05-03-2006, 09:00 AM
JRThro's Avatar
JRThro JRThro is offline
BAR Wannabee
 
Join Date: Mar 2005
Location: NW Houston, TX
Posts: 1,304
Send a message via MSN to JRThro Send a message via Yahoo to JRThro
Default

Quote:
Originally Posted by CenturiGuy
So at least I'm actually *building* something, Bill.


Cheers,

--Jay
Which is more than I've been doing lately...

All I've done in the last few months is a 175% upscale of the Quest Totally Tubular that I put together from 35 mm body tubes from 2 or 3 Quest kits like the Big Rage and ... um, the Icarus, I think. No finishing required, since the tubes are already blue, black, and... white?
__________________
John Thro, NAR #84553 SR
I was too old when I started! Now I'll *never* become a BAR!
Reply With Quote
  #8  
Old 05-03-2006, 10:01 AM
DeanHFox's Avatar
DeanHFox DeanHFox is offline
Incurable Model Rocketeer
 
Join Date: Mar 2006
Location: Metro Milwaukee, WI
Posts: 471
Send a message via Yahoo to DeanHFox
Default

Way cool design, Jay. Was the name and design inspired by the Poul Anderson novel? Always liked that book (although current cosmological theory says, "No way the universe will contract and be reborn").
Reply With Quote
  #9  
Old 05-03-2006, 10:31 PM
Tau Zero's Avatar
Tau Zero Tau Zero is offline
Incurable SEMROC Fan
 
Join Date: Mar 2005
Location: Twin Falls, Idaho, USA
Posts: 2,035
Cool "The Naming of the Names"

Quote:
Originally Posted by DeanHFox
Way cool design, Jay. Was the name and design inspired by the Poul Anderson novel?
The design came out of my twisted little noggin, but yes, the name is indeed from that very book. (My original working name for this rocket was "Biff Pau" -- most likely a reference to the 1960's "Batman" TV show starring Adam West. )

I even consulted a friend of mine who's an astrophysicist at the nearby college, and he said, "Yes, the closer you get to lightspeed, the value for 'Tau' in the equations gets closer to zero." IIRC, he also said that when Tau equals zero, you've reached the speed of light. And then he muttered something to the effect of "then all the rules change," or somesuch astrophysical mysticism.


Quote:
Always liked that book (although current cosmological theory says, "No way the universe will contract and be reborn").
Don't worry. Wait a few years, and another (clarifying? opposing?) theory will come along. They always do.


Cheers,

--Jay
Reply With Quote
  #10  
Old 05-03-2006, 10:55 PM
DeanHFox's Avatar
DeanHFox DeanHFox is offline
Incurable Model Rocketeer
 
Join Date: Mar 2006
Location: Metro Milwaukee, WI
Posts: 471
Send a message via Yahoo to DeanHFox
Default

Quote:
Originally Posted by CenturiGuy
Don't worry. Wait a few years, and another (clarifying? opposing?) theory will come along. They always do.


If that ain't the truth. As a layman, I could barely grasp string theory...then along came superstring theory...and now the rage is "M" theory (really fascinating, but even the layman explanations are getting so technical they're hard to follow!). What's cool about "M" theory is that (finally) there is math to support where the energy came from to create the Big Bang in the first place...and how our universe seems to exhibit both quantum effects at the micro level and chaos effects in the macro level. Or, so it does if I'm reading the articles correctly.

I always thought a Bussard ramjet as described in Tau Zero (and again later in Niven's "A World Out of Time") would make a cool rocket design...and you've gone and done it! Booyah!
__________________
Dean Fox
NAR #53946SR

---- "Wherever you go, there you are"
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 11:12 PM.


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