when i was a kid (90s), i saw these planes going between the hills/tree tops. they were too large to be a remote control plane, but too small to be a maned air

when i was a kid (90s), i saw these planes going between the hills/tree tops. they were too large to be a remote control plane, but too small to be a maned aircraft. when i was in the woods i saw the belly of one of them going over the tree tops 'us airforce', but didnt look like any plane that i knew of. then there was this one night on the news about an airplane crash everyone was calling in, but FAA and military was saying nothing crashed. however... i go outside and there was about a dozen chinook helicopters coming my way. they were going over the ground in a grid pattern. one of them stopped, pointed lights, and landed. they were there for about 20-30 minutes and took off. I would have checked it out but it was night time and I didnt have a flash light. this is the type of thing that makes people think UFO's exist. at the time i knew something was going on, that the air force lost something and now they found it, but I couldnt quite figure out what. now that i know what i know now, i figured out they were testing drones in my area, and they crashed one of them at night. (specifically an early form of predator drones, propeller on back, some weird jet engine thingy on top, and a strange bubbled front is how i would have described it)i guess my area outside pittsburgh was ideal for testing, hills/trees, and they probably didnt think anyone was paying attention.