We are in the final stages of doing something similar. I think it is going to work really well.

Our first stage was to digitize the glider flight reservation, loging and billing. Now we are about to start roll out of the tow pilot portion.

Our tow pilots will login with their name and tow plane initials at the start of each day. Each flight they select glider pilot and glider ID from a list. As you plan, highest altitude is the default but can be adjusted if needed.

The app auto connects to our club WiFi and uploads the tows which are synced to the data they may have already been pre entered by the glider pilot. Thus will happen any time the tow plane is in range of the wifi.

Contact me if you want to discuss. Good luck!

Alan