Friday, July 31, 2009
An iPhone App I'd Like To See
Since I've been using with my iPhone for a while now, I've come up with an app I'd like to play with: all six primary flight instruments, aka the "six pack."
I've been looking at other apps and thinking how this would work.
1. Airspeed. Easy enough. There are speedometer apps that use the info from the GPS. Wouldn't be true airspeed without a pitot tube, but close enough for make believe.
2. Attitude Indicator. Get the info from the iPhone's accelerometers. I found a couple of not very nice-looking apps that do this already.
3. Altimeter. Found a couple of good-looking apps that do this. Uses the info from the GPS, so subject to the inaccuracies there.
4. Turn Coordinator. This might be a little harder, but should be doable. The ball is just a level, easy enough. I think you could do the turn needle using the iPhone compass and measuring the rate of change.
5. Directional Gyro. Uses the compass built in to the 3GS phone.
6. Vertical Speed Indicator. Measure the rate of change on the altimeter.
As far as the interface, I'd start with a screen showing all six indicators in the standard layout. Tapping on one would blow it up to full screen. Tapping again would return to the wide view.
Easy enough, no? I'd pay $4.99 to $9.99 for a really nice, realistic-looking, app.
Same info as the six-pack, but combined EFIS-style Primary Flight Display.