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Tau Zero
07-19-2007, 12:06 AM
In the photo gallery at Leo's Leisure Site:

http://www.leo.nutz.de/Rockets.php?Pictures


...I noticed the following picture:

http://www.leo.nutz.de/images/rockets/pic_shark.jpg


I kind of like this design painted silver instead of catalog white:

http://www.ninfinger.org/~sven/rockets/catalogs/estes75/75est46.html


Apparently there aren't any measurements, etc., available either at JimZ or at Ye Olde Rocket Plans (YORP). I just checked the Estes Nose Cone and Body Tube lists, and there's not any information there, either. However, I see it's a BT-50 design.

Leo, any chance you could measure the tubes, nose cone, and fins? That would make it pretty easy for one of us here to throw together a RockSim file.


Thanks, and cheers,

maricopasem
07-19-2007, 09:38 AM
Additional info: These are the same fins as used in the #1356 Astro Bee, the #1378 Firecat, and the #1915 Harpoon...
This is the 1378 Firecat. Do you mean a different rocket, perhaps?

lurker01
07-19-2007, 09:45 AM
In the photo gallery at Leo's Leisure Site:

http://www.leo.nutz.de/Rockets.php?Pictures


...I noticed the following picture:

http://www.leo.nutz.de/images/rockets/pic_shark.jpg


I kind of like this design painted silver instead of catalog white:

http://www.ninfinger.org/~sven/rockets/catalogs/estes75/75est46.html


Apparently there aren't any measurements, etc., available either at JimZ or at Ye Olde Rocket Plans (YORP). I just checked the Estes Nose Cone and Body Tube lists, and there's not any information there, either. However, I see it's a BT-50 design.

Leo, any chance you could measure the tubes, nose cone, and fins? That would make it pretty easy for one of us here to throw together a RockSim file.


Thanks, and cheers,


TADAH - http://www.dars.org/jimz/est1323.htm

The Lurker

CPMcGraw
07-19-2007, 11:19 AM
TADAH - http://www.dars.org/jimz/est1323.htm

The Lurker

Good work, Lurker. Stiletto is the same kit as the Shark, but with a standard 18mm motor mount. Estes got double-duty from this design after the Coldpower equipment was dropped.

Additional info: These are the same fins as used in the #1356 Astro Bee, the #1378 Firecat, and the #1915 Harpoon...

CPMcGraw
07-19-2007, 02:04 PM
This is the 1378 Firecat. Do you mean a different rocket, perhaps?

Err...:o

Yeah, that's the one... At least, that's the one I thought it was, anyway...

I may have been thinking about the nose cone being the same as the Harpoon when I made the entry in the XEKL. Somewhere I think there is one more design in the catalog with this fin set, but I just don't remember which one right now.

So much for my last remaining brain cells...

And how is it that you posted a reply to my message two hours before I posted the original? :D

You hiding a time-teleporter over there?

Rocketking
07-19-2007, 05:01 PM
The nose cone can be 'snagged' from the "Skywriter" kit. You won't get the 'nozzle' with it, but the cone IS right!

maricopasem
07-19-2007, 05:07 PM
And how is it that you posted a reply to my message two hours before I posted the original? :D

You hiding a time-teleporter over there?
I wondered about that myself. Perhaps I have heretofore undiscovered skills. :p

Tau Zero
07-19-2007, 11:21 PM
Good work, Lurker. Stiletto is the same kit as the Shark, but with a standard 18mm motor mount. Estes got double-duty from this design after the Coldpower equipment was dropped.I was planning on putting an EM-2050 (18mm) mount in this one *anyway.*

But I see the Estes Stiletto uses a much longer main tube and *doesn't* have a payload section. :rolleyes:


These are the same fins as used in the #1356 Astro BeeSilly me! :o I already have a RockSim file for the AstroBee! :cool: (I may have even gotten it from another thread here on YORF... or maybe over on TRF.)


The nose cone can be 'snagged' from the "Skywriter" kit. You won't get the 'nozzle' with it, but the cone IS right!Glen,

Thanks! I've already got the cone!
(breathless voice) "--I sanded the paint off, and *everything.*" :cool:


Cheers,

Leo
07-20-2007, 02:39 AM
Jay,

here the same rocket redone and awaiting sealer:

http://www.leo.nutz.de/images/rockets/shark.jpg

If possible I'll check if I can scan all the parts from the coldpower kit.

CPMcGraw
07-20-2007, 01:25 PM
...But I see the Estes Stiletto uses a much longer main tube and *doesn't* have a payload section...

I just took a look at the two catalog images side-by-side, and compared the published lengths. The Stiletto is 22.4" and the Shark is 19.5". Roughly 2.9" longer. Maybe this change was a correction for a stability issue that showed up when the original Shark was converted to BP. The Coldpower engine may have had more mass forward of the CG (relative to the CP) than a simple BP motor would provide.

It's still the same kit, just as the 1200-Series Cherokee-D was the same kit as the K-Series Cherokee-D... :D

CPMcGraw
07-20-2007, 01:28 PM
Jay,

here the same rocket redone and awaiting sealer:

http://www.leo.nutz.de/images/rockets/shark.jpg

If possible I'll check if I can scan all the parts from the coldpower kit.

Leo,

Nice build! Now I've got to build one...

More rockets... Sigh... I'll never catch up... :o

Tau Zero
07-27-2007, 08:34 PM
Leo, any chance you could measure the tubesHey Leo, just a "bump" here. ;)

Could you measure the length of the BT-50 body tubes and let us know what they are?


I have a "mocked up" rough RockSim file, with "fake" tube lengths of 4.0" for the payload tube and 9.5" for the main tube, but the rocket is about 1/2" longer than the catalog length. :confused:

--I'll need to doublecheck the fin sizes, so I'd better go do that. :o


Thanks, and cheers,

lamart72
07-28-2007, 04:19 PM
I just picked up the 2007 Estes Catalog at my LHS and noticed that the Crossfire ISX kit appears to use the same nose cone and the hard to find tail cone from the Stiletto kit.
The description also states that the fins are "plastic-molded". I wonder if the tailcone is somehow part of the fin unit?
The downside is that this kit only comes in the Tandem-X Launch Set #1483 on page 9.

Lamar

Leo
07-29-2007, 04:14 AM
Well, I went to look for my sealed Shark kits and to open one of them for the measurements.

However while going though the boxes I came across a kit that was already opened. Add another kit to the list of rockets I didn't realize I had :)

Below are the parts spread out. I added the requested data to the bottom of the picture.

http://www.leo.nutz.de/images/rockets/forums/Estes_Shark_Data.jpg

I'll do a complete scan of all the parts for cloning purposes.

Leo
07-29-2007, 06:01 AM
Ok, all scans are up.

Click me ... (http://www.leo.nutz.de/Rockets.php?Rockets=Estes/Vashon%20Industries#492)

Tau Zero
07-29-2007, 11:01 PM
Well, I went to look for my sealed Shark kits and to open one of them for the measurements.

Below are the parts spread out. I added the requested data to the bottom of the picture.

I'll do a complete scan of all the parts for cloning purposes.Thanks so much for all this information! ;) :D

I *also* realized over the weekend that the BNC-50AR is the same nose cone as in the Estes "Citation" Starship Vega! :cool:


Cheers,