I recently created an app for Android smart phones that automatically finds airplane speeds and announces them while you are flying, and I wanted to start a thread on it for input, suggestions, etc.
- Detects speeds for any electric plane that has a high RPM prop or fan, ie pretty much any pusher, pylon racer, or EDF.
- Announces speeds through the phones navigation voice as they are detected.
- Automatically detects the temperature of your local field using GPS and weather reports for maximum doppler accuracy.
- Records last 10 speeds, and displays last speed and highest speed in big letters on the screen.
Here's a video of the app in action:
I also decided to do the community a favor and port something that is basically the same as the android app onto the PC, so anyone with a windows computer can use my software to doppler their planes much easier. I'm hoping this will make everyone's life easier, especially those who don't know how to do doppler analysis using wave-o-scope. For the PC app all you'll need is a youtube video or an MP3 or WAV sound file of a plane making it's flight. The program will play the sound file back and will report any speeds it can find in it with the click of a button. This version definitely still needs a little work so check back for some updates, I'll announce them as they come in this thread.
I've made a simple site that describes both these apps a little better where you can also download the PC app: http://www.rcspeedo.info