Instructions for this set are not available from LEGO.com, but they may be available at Peeron.
A parts list for this set may be available at BrickLink and/or Peeron.
This was one of the first technic sets I bought, and one of the few that still stand up to the test of time. I was very impressed with the flex cable, and mine did not seem fragile - maybe because i never left it built for a long period of time. Also, you have to make sure the gears are not to tight to the bricks or it will be much harder to turn the rotors - leave it loose. The second set was not really worth building in my opinion.
This was one of my first Technics and is still one of the best. It's very simple and doesn't have many parts, but its functions are impressive.The problem with it is that the flex cables are too fragile (don't think any of mine is still intact) and the rotors tended to become stiff after some time, but still... :)The secondary model isn't as good, however. Only has one function: movable flaps.
I like this tilt-rotor helicopter more and more each time I build it. It's uncomplicated and looks realistic when completed. The 8412 doesn't have very many pieces (parts count is less than 300), but it gives the impression of being a mid-size kit. I especially like the flexible cables. (I think the 8412 is the reason why I've never gotten around to building my unopened still-in-the-box 8444.) Good job. 9.5/10. 15 April 2004