Hi Andy
Lol Ray is right there seems to be a fare few Andys on here, i guess our mums all had good taste
As far as the floor goes although i have heard that black none slip paint was used (sand added to the paint to produce the none slip properties) i havnt seen many pictures of this. From what i have learnt the usual color was a very light gray for the floor and walls and darker gray for the soundproof padding. A dry brush of silver over the light gray on the outside edges and rivets of the floor will give a more realistic worn look.
Its also worth bearing in mind when looking at photos that alot of POST Vietnam era hueys have black painted interiors, i have seen quite a few with black floors. Also black control panels were introduced to help stop glare for night vision equipment.
Now onto weapons ..(Ray knows me to well lol), If your building a US Army D model, leave off the miniguns and rockets. Unless you want to build an Aussie Bushranger huey, which was a slick with miniguns mounted behind the cockpit doors and M158, 7 tube rocket launchers (7 individual tubes tied together) as opposed to the M157, 7 tube rocket launcher (7 tubes incased in a cylinder) which is the type i expect you have with your kit. Hypodermic needles or brass/Aluminium tubing can be used to make the individual M158 tubes.
None of the doors were padded.
Ray is correct about the Greenhouse windows, every huey ive ever seen has tinted green windows above the pilot/copilot seats (Tamiya clear green is the usual color for this, although it is also possible to stain the two windows with a pot of Future and a mixture of green and blue food coloring).
The textured none slip surface on top of the fusalege was black and was there to help stop people falling off while working on or checking the rotor system. But not all hueys had this so you can get away with either black or olive drab.
I hope that helps out. As Rich & Ray said, check out the other huey threads on here for more info. They are packed to the brim with useful Pictures and information from enthusiasts, historians and most importantly veterans who actually flew in these fine birds. If you cant find what your looking for then ask away, the guys on here will be more than happy to help.
Good luck with your build.
Andy
While the rest of the crew may be in the same predicament, it's almost always the pilot's job to arrive at the crash site first.