[shangxiao]

Awesome.

Is this sort of thing usually done with RC planes? I've been watching a few RC plane videos lately - there seem to be a lot of pilots out there who could benefit from electronics to help land their planes - especially those who've spent a ton of money on really nice setups like this guy: [1]

[1] http://youtu.be/nQJ3TzSZkpo

[matthewmcg]

Yes, stabilization systems are increasingly common among the so called "ultra micro" models.

I just bought a E-Flite Radian UMX, which is a stabilized and miniaturized (29" wingspan) version of a larger model (the 2M wingspan Parkzone Radian). The stabilization makes it much easier for inexperienced users to fly in gusty conditions. Like the OP's home-built system, it has a rate-sensing gyro system that compensates for any uncommanded movement. The plane flies perfectly straight regardless of wind and updrafts unless you give rudder or elevator inputs.

I am still amazed it was only $80.

[fit2rule]

There are products out there with names like "EZ Fly" and "SAFE mode" which do exactly as you describe - fly the plane for you so that you can get your wings stretched as a new pilot. My kids often have to engage SAFE mode on final approach so they don't cartwheel into the ground - its fantastic for that sort of situation where you really do have a thin line between flight and boom.

[DEinspanjer]

Yes, most hobby grade planes and almost every multi-rotor out there now comes with an IMU on board for stabilization. Many of the more expensive multi-rotors will also come with a GPS and auto-pilot which will enable loitering (i.e. stay in this place in 3D space unless I tell you to move) and RTL (return to launchpoint).

[matthewmcg]

Also, there is a ready-made autopilot for new fliers called the uThere Ruby. They have some neat videos of fully autonomous landings in crosswinds on their site.

The OP's DIY approach looks much more fun though!