mostest awesomest RC helo EVAH!

[Anodizer]

Would make a nice UAV!!  That thing could be 1000ft in the air and you'd probably never see it..
Bet ya someone already has something like this...  **waiting for responses**

[HPriller]

I'm curious as to how they manage the altitude hold feature, never seen this done before on an RC heli.  The GPS control is slick

[Strip]

I'm curious as to how they manage the altitude hold feature, never seen this done before on an RC heli.  The GPS control is slick

You answered your own question....

Once you program the helicopter to hold latitude and longitude, altitude becomes rather easy to add.

Strip

[68ZooM]

i live in the high desert and it looks strangely familiar to that movie lol  thanks for the link im watching it now 

[HPriller]

You answered your own question....

I'm gonna assume by this you mean the altitude information is coming from the GPS unit?  I didn't realize GPS was capable of such precise altitude reporting.

[Strip]

Correct, GPS is far more accurate than I think you give it credit for. With the right receiver GPS is accurate to within a couple inches in all directions.

Most of the guided munitions are usually fed only GPS, the onboard computer calculates the vector based on rate of change in the X,Y and Z axis.

Strip