NASA Pegasus

[Solomoriah]

I was just looking here:

1985 Estes Catalog (http://www.ninfinger.org/~sven/rockets/catalogs/estes85/85est36.html)

I'm really taken with the NASA Pegasus model; however, I can't find plans for this one. JimZ lists a part number 0806 Pegasus, but not this no. 1376 NASA Pegasus. I can probably get pretty close from the picture, but I'd sure like to see their fin patterns and alignment guide.

EDIT: I also really like the Scorpius here. (http://www.ninfinger.org/~sven/rockets/catalogs/estes85/85est50.html) Same situation though.

I admit I'm wondering about the stability of Scorpius...

[A Fish Named Wallyum]

Here you go.

http://www.oldrocketplans.com/estes/est1376/est1376.htm
http://www.oldrocketplans.com/estes/est1375/est1375.htm

And I almost don't want to show you this link. We might never hear from you again. ;)
http://www.oldrocketplans.com/

[JRThro]

Here you go.

http://www.oldrocketplans.com/estes/est1376/est1376.htm
http://www.oldrocketplans.com/estes/est1375/est1375.htm

And I almost don't want to show you this link. We might never hear from you again. ;)
http://www.oldrocketplans.com/
Yeah, the Estes Scorpius (#1375) has caught my eye several times now.

[Tweener]

Looking over the Scorpius instruction sheet, I couldn't help but notice the photo of the finished model for decal placement has the front supports at the wrong end of the forward tubes when compared to all the construction drawings. Same with the catalog picture. I wonder which would be considered "correct"?

[Solomoriah]

Thanks for the info!

[JSP]

I admit I'm wondering about the stability of Scorpius...[/QUOTE]

I built the original years ago. It flys like a champ!

[JSP]

By the way, I've kicked around the "upscale" idea for the Scorpius for about six months now...

[A Fish Named Wallyum]

By the way, I've kicked around the "upscale" idea for the Scorpius for about six months now...

There's a picture of one of these out there somewhere. It's on my screen saver at work. :cool:
(BTW, I mean the Scorpius is cool, not work. Work gives me hairballs.)

[Bob H]

... I'm really taken with the NASA Pegasus model; however, I can't find plans for this one. JimZ lists a part number 0806 Pegasus, but not this no. 1376 NASA Pegasus. I can probably get pretty close from the picture, but I'd sure like to see their fin patterns and alignment guide...

The NASA Pegasus makes a nice upscale to BT-70 size but I found out that if you do that, you'll either need a 24mm cluster or Aerotech motors.

I'm hoping to try mine on an E18-4 or an F24-4 this weekend.

Review on EMRR can be found here (http://www.rocketreviews.com/reviews/scratch/upscale_nasa_pegasus.html)

[Tau Zero]

I'm really taken with the NASA Pegasus modelSolomoriah,

(Sorry, I want to abbreviate your username to "Solo," for some unidentifiable reason. :confused: --Probably because it's shorter). If you didn't know about it already, here's a link that you'll absolutely *need* for your Estes cloning purposes :D : Estes Body Tube and Nose Cone Lists (http://forums.rocketshoppe.com/showthread.php?t=678)


That's how I tracked down the information on the body tubes. :cool: You can get your BT-20J, BT-50FE, and BT-55C (14" long) from SEMROC. Look under "Classic Body Tubes (http://www.semroc.com/Store/Products/BodyTubes.asp)" (Scroll down below the Centuri ST- and LT- tubes).

You can also get a balsa equivalent for the nose cone from Semroc: BNC-55AO (http://www.semroc.com/Store/Products/NoseCones.asp) and Estes-sized centering rings (http://www.semroc.com/Store/scripts/prodList.asp?idCategory=87), as well.


If you haven't already, go to www.semroc.com and just poke around a while. You *may* like what you find. :rolleyes: ;) :D


BTW, cool avatar. ;)


Cheers,

[Doug Sams]

I was just looking here:

1985 Estes Catalog (http://www.ninfinger.org/~sven/rockets/catalogs/estes85/85est36.html)

I'm really taken with the NASA Pegasus model; Here's Tim Sapp's upscale version: http://www.sappgeeks.com/rocket/pegasus/assembly/Pegasus_1.jpg

And here it is Monday at LDRS: http://www.libertylaunchsystems.com/Gallery/LDRS2006/Day5/Full/DSC_0382.JPG

That's an O-something-or-other research motor (fka EX).

I didn't fly anything so big, but did manage to 1) get my L2, 2) power prang a BT-70 upscale Midget, 3) fly a Comanche on a full D-C-C stack and 4) get really psyched about my next outing.

Doug

[A Fish Named Wallyum]

Here's Tim Sapp's upscale version: http://www.sappgeeks.com/rocket/pegasus/assembly/Pegasus_1.jpg

And here it is Monday at LDRS: http://www.libertylaunchsystems.com/Gallery/LDRS2006/Day5/Full/DSC_0382.JPG

That's an O-something-or-other research motor (fka EX).

I didn't fly anything so big, but did manage to 1) get my L2, 2) power prang a BT-70 upscale Midget, 3) fly a Comanche on a full D-C-C stack and 4) get really psyched about my next outing.

Doug

HO-LEE SCHLITZ!

Congrats on the L2 and sorry about the Midget prang. My next outing should be this weekend, and I'm also pretty jazzed. I finally finished the BT-80 Wizard that I started YEARS ago. Just an E-powered flight, but it's always nice to finish one that has been around long enough to house spiders. (Boy, are THEY gonna be surprised!) :rolleyes: :cool:

[A Fish Named Wallyum]

The NASA Pegasus makes a nice upscale to BT-70 size but I found out that if you do that, you'll either need a 24mm cluster or Aerotech motors.

I'm hoping to try mine on an E18-4 or an F24-4 this weekend.

Review on EMRR can be found here (http://www.rocketreviews.com/reviews/scratch/upscale_nasa_pegasus.html)


:cool: :cool: :cool:

[sandman]

Bob,

I remember that nose cone now! ;)

I have trouble remembering what I've done...honest your Honor. :rolleyes:

[JRThro]

There's a picture of one of these out there somewhere. It's on my screen saver at work. :cool:
(BTW, I mean the Scorpius is cool, not work. Work gives me hairballs.)
JSP and Bill, over on TRF, user Fore Check built a 266% upscale Scorpius in 2004.

Here's a link to his thread: http://www.rocketryforum.com/showthread.php?s=&threadid=10871

[Bob H]

Bob,

I remember that nose cone now! ;)

I have trouble remembering what I've done...honest your Honor. :rolleyes:

Yeah, everyone that has that nosecone made seems to want it for an upscale Goblin. ;)

Me too, of course. :rolleyes: That's why I had 2 of them made. :D

[JSP]

[QUOTE=JRThro] Fore Check built a 266% upscale Scorpius in 2004.

Wow! That's beautiful....
Of course now I'm not sure if I'll do one...
I was looking at the Nebulon Warrior too. Do you know if anyone has done that one?

[A Fish Named Wallyum]

[QUOTE=JRThro] Fore Check built a 266% upscale Scorpius in 2004.

Wow! That's beautiful....
Of course now I'm not sure if I'll do one...
I was looking at the Nebulon Warrior too. Do you know if anyone has done that one?

Can't say I've seen that one. :confused: Looks like it would upscale fairly nicely though.

[Solomoriah]

Solomoriah,

(Sorry, I want to abbreviate your username to "Solo," for some unidentifiable reason. :confused: --Probably because it's shorter).
Actually, it's the preferred abbreviation... there's a whole story there that I won't bore you with now.

If you didn't know about it already, here's a link that you'll absolutely *need* for your Estes cloning purposes :D : Estes Body Tube and Nose Cone Lists (http://forums.rocketshoppe.com/showthread.php?t=678)


That's how I tracked down the information on the body tubes. :cool: You can get your BT-20J, BT-50FE, and BT-55C (14" long) from SEMROC. Look under "Classic Body Tubes (http://www.semroc.com/Store/Products/BodyTubes.asp)" (Scroll down below the Centuri ST- and LT- tubes).

You can also get a balsa equivalent for the nose cone from Semroc: BNC-55AO (http://www.semroc.com/Store/Products/NoseCones.asp) and Estes-sized centering rings (http://www.semroc.com/Store/scripts/prodList.asp?idCategory=87), as well.


If you haven't already, go to www.semroc.com and just poke around a while. You *may* like what you find. :rolleyes: ;) :D
I've been there. I'll be back...

The construction of the Pegasus is much simpler than I expected... alignment guide? Who needs them! But I'm not looking to replicate it. Rather, I'm collecting details for a series of "exotic-lite" models I plan to build. Right after I build and fly the Cyclone unicopter...

BTW, cool avatar. ;)
Thanks! I drew it myself, actually... I'm no artist, but once in a while something I draw comes out like I want it.

[Solomoriah]

Here's Tim Sapp's upscale version: http://www.sappgeeks.com/rocket/pegasus/assembly/Pegasus_1.jpg
Cool model. I'm rather uninterested in upscales, though... I much prefer the scale I grew up building. Besides which, I don't have access to a large enough launch field for big rockets.

Yet.

[Tau Zero]

Actually, it's the preferred abbreviation...Okay. "Solo" it is! :D


there's a whole story there that I won't bore you with now.You may already know that one of Bill Eichelberger's handles is "Fishhead." The only explanation he offers is that beer was involved. :eek:

Go figure. ;) :D


Cheers,

[A Fish Named Wallyum]

Okay. "Solo" it is! :D


You may already know that one of Bill Eichelberger's handles is "Fishhead." The only explanation he offers is that beer was involved. :eek:



Yeah, there was this beer, then this other beer, and then a whole squadron of them attacked. Before I knew it, I was Fishhead.
The other guy went through life called Goober. I consider myself lucky. ;)

[JSP]

Speaking of upscales, here's my upscaled Estes Scamp that I flew at NSL 06 on a Roadrunner G80-10. Yes, I did get it back (by a miracle...)

[Tweener]

Anyone care to comment on this discrepancy? It seems it might definitely affect the CP and CG of the model. On closer inspection, it also seems that the rear tube supports are reversed from the instruction diagrams.

[JRThro]

Anyone care to comment on this discrepancy? It seems it might definitely affect the CP and CG of the model. On closer inspection, it also seems that the rear tube supports are reversed from the instruction diagrams.
Take a look at this Scorpius build thread from TRF. Both of the builders (JBeau and huxley) built theirs with the forward and aft engine pod supports in the rearward positions. That's also how Fore Check built his upscale.

http://www.rocketryforum.com/showthread.php?s=&threadid=24214

[JSP]

That's how I built mine the year it came out (as seen in this vintage photo). I think the picture in the instructions was a mistake...

[CPMcGraw]

Anyone care to comment on this discrepancy? It seems it might definitely affect the CP and CG of the model. On closer inspection, it also seems that the rear tube supports are reversed from the instruction diagrams.

It's just a case of sloppy illustrations. The catalog photo shows the model had the forward supports in the rear position, just like those back-page images. Match the photos of the model to be sure.

[CPMcGraw]

It seems it might definitely affect the CP and CG of the model.

Study the RockSim file. The fins on the simulation are the same size as the ones on the model, just shown in the wrong place. The effect on stability will be the same as on the model.

[barone]

I was just looking here:

1985 Estes Catalog (http://www.ninfinger.org/~sven/rockets/catalogs/estes85/85est36.html)

I'm really taken with the NASA Pegasus model; however, I can't find plans for this one. JimZ lists a part number 0806 Pegasus, but not this no. 1376 NASA Pegasus. I can probably get pretty close from the picture, but I'd sure like to see their fin patterns and alignment guide.

EDIT: I also really like the Scorpius here. (http://www.ninfinger.org/~sven/rockets/catalogs/estes85/85est50.html) Same situation though.

I admit I'm wondering about the stability of Scorpius...


Solo,

You can actually purchase clone kits of the Scorpius at Pimp Daddy Rocketry....www.pdrocketry.com. Here's a list of the kits they have available.

K-20 Mars Snooper
K-21 Gemini Titan
K-28 Thor Agena B
K-32 Starlight
K-33 Trident
K-42 Orbital Transport
K-47 Cherokee D
K-49 Sprint
K-55 Goblin
K-58 A-20 Demon
1272 Vostok
1273 USS Andromeda
1281 Alien Invader
1283 USS Atlantis
1288 Starlab
1297 Solar Sailer
1343 Starfighter Combination Pack Torellian Invader and Orion Starfighter
1350 Black Hole Space Probe
1369 SS Cassiopeia
1372 Alien Explorer
1375 Scorpius
1902 Space Station Aquarius
1914 Galactic Taxi
1920 Starship Excalibur
2003 SDI Satellite

I've ordered the A-20 Demon and am looking forward to the build. Hope it turns out as well as Bill's.

Don
NAR 53455

[A Fish Named Wallyum]

Solo,

You can actually purchase clone kits of the Scorpius at Pimp Daddy Rocketry....www.pdrocketry.com. Here's a list of the kits they have available.

K-20 Mars Snooper
K-21 Gemini Titan
K-28 Thor Agena B
K-32 Starlight
K-33 Trident
K-42 Orbital Transport
K-47 Cherokee D
K-49 Sprint
K-55 Goblin
K-58 A-20 Demon
1272 Vostok
1273 USS Andromeda
1281 Alien Invader
1283 USS Atlantis
1288 Starlab
1297 Solar Sailer
1343 Starfighter Combination Pack Torellian Invader and Orion Starfighter
1350 Black Hole Space Probe
1369 SS Cassiopeia
1372 Alien Explorer
1375 Scorpius
1902 Space Station Aquarius
1914 Galactic Taxi
1920 Starship Excalibur
2003 SDI Satellite

I've ordered the A-20 Demon and am looking forward to the build. Hope it turns out as well as Bill's.

Don
NAR 53455

Thanks, Don. I meant to mention that and forgot. :o

[Tweener]

Study the RockSim file. The fins on the simulation are the same size as the ones on the model, just shown in the wrong place. The effect on stability will be the same as on the model.Craig,
What happens if you build it according to the illustrations? That would be the one that seems as if it may suffer from stability problems, since it should move the CP forward. Glad I never bought one of these back when they were available. I always followed the illustrations. :rolleyes:

[CPMcGraw]

Craig,
What happens if you build it according to the illustrations? That would be the one that seems as if it may suffer from stability problems, since it should move the CP forward. Glad I never bought one of these back when they were available. I always followed the illustrations. :rolleyes:

It only drops the stability 0.20 from where it would be in the correct position. This is consistent with any of the motors. The model will still fly, probably without you noticing anything different...:rolleyes:

[JSP]

Yeah, that's kind of what I figured. After all , you're only talking about moving them less than an inch...AND they aren't the primary means of stability anyway.

[Tau Zero]

I'm really taken with the NASA Pegasus model; however, I can't find plans for this one. JimZ lists a part number 0806 Pegasus, but not this no. 1376 NASA Pegasus. I can probably get pretty close from the picture, but I'd sure like to see their fin patterns and alignment guide.Here's my RockSim contribution. The tube fins are exceptionally tricky to model, even using Bruce S. "teflonrocketry1" Levison's method. So I'm not exactly how close the simulations are. :(

(Set the wayback machine for "Grip and rip it, 30 years ago"... i.e., build it, fly it, and see what it does.)


See the .PDF plan file previously mentioned in this thread for an *accurate* end view of the fin alignment.


Cheers,

[Solomoriah]

See the .PDF plan file previously mentioned in this thread for an *accurate* end view of the fin alignment.
When I saw the rocket in the old catalog, I imagined a tricky fin alignment... but there really isn't anything hard about it at all. In fact, it may be one of the easiest fin alignment/attachment jobs I've ever seen. I can't imagine why this isn't a current model. It's attractive and easy to build.

(I say the latter without having tried yet...)

This is one I'm planning to build with my daughter, as soon as I can scrounge up the parts.

[hawkshobby]

Here's my RockSim contribution. The tube fins are exceptionally tricky to model, even using Bruce S. "teflonrocketry1" Levison's method. So I'm not exactly how close the simulations are. :(

(Set the wayback machine for "Grip and rip it, 30 years ago"... i.e., build it, fly it, and see what it does.)


See the .PDF plan file previously mentioned in this thread for an *accurate* end view of the fin alignment.


Cheers,



Thanks Jay I needed that. :D

Mark

[barone]

I can't imagine why this isn't a current model.

Check E-bay. You can usually find a clone kit available from Rocketpad.

This is one I'm planning to build with my daughter, as soon as I can scrounge up the parts.

That's what I like about buying the clone kits when available. I don't have to scrounge the parts and they usually come with decals.

Don
NAR 53455

[JRThro]

Thanks, Don. I meant to mention that and forgot. :o
And here's a current price list that I received from PD Rocketry yesterday afternoon:

K-20 Mars Snooper 36.95
K-21 Gemini Titan 34.95
K-28 Thor Agena B 32.95
K-32 Starlight 12.95
K-33 Trident 31.95
K-42 Orbital Transport 21.95
K-47 Cherokee D 19.95
K-49 Sprint 9.95
K-55 Goblin 12.95
K-58 A-20 Demon 19.95
1272 Vostok 23.95
1273 USS Andromeda 24.95
1281 Alien Invader 19.95
1283 USS Atlantis 19.95
1288 Starlab 21.95
1297 Solar Sailer 15.95
1343 Starfighter Combination Pack Torellian Invader and Orion Starfighter 29.95
1350 Black Hole Space Probe 21.95
1369 SS Cassiopeia 19.95
1372 Alien Explorer 24.95
1375 Scorpius 19.95
1902 Space Station Aquarius 21.95
1914 Galactic Taxi 17.95
1920 Starship Excalibur 19.95
2003 SDI Satellite 21.95

Some of these have balsa nose cones and some have plastic. Of the four kits I asked Eric at PD for details on, the Trident and Andromeda have balsa nose cones and the Alien Explorer and Scorpius have plastic nose cones. Since the Trident has 9 balsa nose cones, I think I can understand why its price is a little higher than some of the others.

[Green Dragon]

That's how I built mine the year it came out (as seen in this vintage photo). I think the picture in the instructions was a mistake...

here's photo of my 'semi-clone' Scorpius built using the cone from my bros original Scorpius and a set of vintage original decals.
build according to the drawing and flies fine, with no stability issues.

upscale version in the que :-)

~ AL

[barone]

here's photo of my 'semi-clone' Scorpius built using the cone from my bros original Scorpius and a set of vintage original decals.
build according to the drawing and flies fine, with no stability issues.

upscale version in the que :-)

~ AL

Gee.....took a while to find the Scorpius......my mouth had dropped so far that it affected my vision. Nice rack of rockets.... :D

Don
NAR 53455

[Tweener]

here's photo of my 'semi-clone' Scorpius built using the cone from my bros original Scorpius and a set of vintage original decals.
build according to the drawing and flies fine, with no stability issues.

upscale version in the que :-)

~ ALGood to know. I actually like that look better - for some reason it satisfies my sense of esthetics. ;)

[Green Dragon]

Gee.....took a while to find the Scorpius......my mouth had dropped so far that it affected my vision. Nice rack of rockets.... :D

Don
NAR 53455

lol, thanks Don :cool:

I think I posted that pic before in onother thread, but since the Scorpius was there, I did not take time to crop it down more, lol .

Amazing what sort of 'hoard' you can amass in 20-25 years in the hobby, lol....

~ AL