If it's almost 3 feet long, it's probably the 1/350 scale model from Polar Lights.

You can find aftermarket items for it at

http://www.culttvmanshop.com/

Not sure if they have decals, though.  But as I recall, the only decals are lettering, "NCC-1701-A   Enterprise" on the front top of the saucer. You could do this with a sheet of black "alphabet" decals, or of course print your own.

I don't think its 3 ft long?? .. maybe 2 ft ?.. I will ck when I get home.. I havn't finished repairing it yet, the hull-saucer are not attached to the engine nacelles yet..

If it's 2 feet or more, it's the Polar Lights model referred to above.

Yeah, the old AMT kit is big, about a foot and a half to two feet. The Polar Lights one Chuck refers to is friggin' HUGE, about three feet or so.

The AMT kit is still a pretty good model, just watch for the nacelle pylon (the two rear ones) fit to the secondary hull. It's only a small piece of plastic with a lot of weight on it, you might want to place a pin inside it or otherwise brace it.

The kit can be built as either the refit/movie 1701 (the first three original movies) or the 1701A (the last three original movies). You should be able to find plenty of decals at either CultTVMan as Chuck noted. I bought a bunch of stuff from Federation Models- I looked at their site and there are several sets listed for the refit/movie and 1701A there too. I don't remember what brand mine are but they look great (haven't used them yet).

I cked out Culttvman, he's got some stuff.. but not that model, nor decals for what I think it is.. I'l ck Federation Models..

thanks !

I did just see some decals for the 18" AMT kit.. but it shows the rounded nacelles front.. not the rectangular..

The easiest way to identify an AMT Enterprise is by the rough texture of the kit. This was done after the initial Star Trek: The Motion Picture version. That kit was very smooth, came with dry transfer markings, battery compartment, lights and is often referred to as the "smoothie".

The next versions had a rough texture to give a more "lifelike" surface. The lighting was removed, but portions of the hull where the batteries would go in showed signs that it was designed to be removed.

The 1701-A had a very short movie life; it was shown in the final scene (just about a minute) in Star Trek IV: the Voyage Home and in both STV and VI.

This site has some good information and stuff for sale regarding the Enterprises. Just make sure you know which kit you have; you don't want to buy a set for an entirely different scale vehicle!

starshipmodeler.biz/.../star-trek.cfm

It has a rough texture to it.. not real rough, but not smooth,,. some of the windows and portals are open like it could have been lit.. but when I got it, the major parts were assembled, so I can't see inside the hull, saucer or engines.. The mounting stand has no place for batteries or anything..  mostly I'm cleaning seams, filling cracks, reglueing and clamping where its come apart..

If it's the AMT kit it's the 1/537 model - 22 inch I think. AMT makes a small 1/1000 scale kit too so don't confuse them!

On the Federation Models site I found several sets under AMT 1/537 Enterprise Refit

JTG-18-A and JTG-18-B from JT Graphics

PNT-4533 and a few more from PNT Decals

Sorry- friggin' Federation Models website won't let me direct link

I'm pretty sure its am AMT kit.. it has that "feel" about it.. One of the boxes I saw on Ebay says the AMT is 22" long.. so.. that sounds pretty close ?? .. Thanks !!

Good luck P-38, please post some photos when you get her finished!

will do... she;s in red primer now. I will need to repair one the engine attachment points, it did exactly what someone said.. snapped off..

starship modeler and federation models both have decals for these ships.  both online

ok,, thanks .! Here's a pic in primer,...

Yep, that's the old AMT "roughie", all right.

I like the guy standing on it...reminds me of someone.

Thanks... its coming slowly.. gotta order decals...

The "Inspector" is checking her out...

Looks good, but seems like the primer red will be a PITA to cover in light grey.

Now I'm wondering if she's going to be the USS Manstein NCC--2290 (guess it's ok to add a zero eh?)

I'm hoping the red will cover ok,,, So we shall see... I didn't have any other color at the time to try...

I will be ordering the "correct " decals...

I'm sure the Russians would run for real if the Enterprise ever appeared over Stalingrad...

Russians, Romulans... close enough... 

I think Imight have an extra set I could send ya free can you show me a picture of what you have and I'll see what I can do.

hey,.  thanks !

Tell ya what if you can send me an address I'll send you what I have.I picked up some real cool decal sheets at wonderfest last time maybe they will do just the trick

I sent you a PM with my info.. Thanks !

Yeagermister< did you  get my PM ??

also.. I have attached the pylons to the ship.. pics soon...

got some paint on her last night.. Duck Egg blue...

ran out.. lol..

She looks good to me! Easy to run out of paint on something as big as this!

used another 1/2 a bottle to finally get her covered all over.. next, masking and painting the areas that need it..

decals for this ship can be found at ww.jt-graphics.com awesome decals. if you are ever looking for lighting www.voodoofx.com is really good. fiber optics www.thefiberopticstore.com after market and photo etch www.dlmparts.com and paragrafix.biz. I am building up that same one right now :)