I built that model too... it had downsweeping wings.... like a dove in flight. I don't know that there was ever a real plane. I do know that the Engine is in the F-22 is a Pratt and Whitney called F-119. a very powerful engine. I'm a War Vet and though i was in the Army I've been obsessed with Jets since i was like six. I found this picture www.angelfire.com/nh/blackjet/images/F_119.jpg
perhaps the model was built on the hype surrounding the f-117 bomber. Note: the only Stealth Aircraft in the US Arsenal is the B-2, F-117, F-22. some others have low radar cross sections like the newest F/A 18-E i believe.  The B-2 is the flying wing designed decades ago with propellers (no joke) and there was a fatal crash and it was put on the back burner for years. B-2 is a Long Range bomber that can deliver just about any laser guided bomb in our arsenal. It's Hull is radar absorbing in laymans terms. it's engine is surrounded by ceramics to reduce heat signature from the exaust. It's worth every buck they payed for it i think but it has no air-to-air ability. The F-117 was a prototype in Stealth Flight. using radar reflection more than absorbtion the idea was to make the waves go anywhere but it back to the sender. It's a silly plane cause it isn't aerodynamic and requires considerable electronic aid to stay in flight. I believe it only has two bomb runnners. it's often called a stealth fighter but any fool can see by looking at it that it would not be capable of a dog fight. The F-22 which has the engine I was talking about uses radar absorbing materials to hide from typical threats like SA-2 sites. the thing is that stealth technology for aircraft requires a detailed knowledge of what things look like from the ground as a man, machine. from people watching the sky with manual AAA guns, radar guided systems like the ZSU-23. sophisticated blimps that monitor winds, sounds, heat. missiles guided by radar, by thermal cameras, IR cameras. no to mention the threats to anyone flying NAP of the earth. small arms, SA-15, Stinger. I think stealth craft are overated. there's obviously a niche for them but none of them are invisible. It's easy to bomb the middle east back into the stone age. villager says "ooh upgrade". try something like that on china and I doubt they'd come back unscathed. I'm ranting.... It looks like the f-119 was made up as a believed construct of the future stealth fighter(back in the early 90s or late 80s). there's probably an aurora spy plane model too even though i've never seen the plane only rumors. Boeing was making the Army a stealth helicoptor but the Army's $$$ was insufficient so they killed the contract. I lived with a guy who talked to a major who was involved and they took his models away (sob sob). Commanche had video games in the DOS operating system even though the helicopter was only a dream then. I think they make the models and video games as eye candy for the military generals that have to yeah/neah the projects. I figure the F-119 model was just eye candy. like drawings that game designers make before writing even a single line of code. on a foreign note check out russia's planes. they are very cool.