737! So you'll win the air race ;)
I think that windy is great to have access to Metars and Tafs and don't know much about pilot weather app, I'll check it. I have always considered that without forecasters analysis, you could never create a real pilot weather app... I see all existing aviation weather app as gadgets which don't really bring something more useful than having quick access to metars and tafs... But... You're right when you say that Windy could be a great platform to create a great and leading edge tool for general aviation or more.
I can imagine a dedicated menu on windy webpage (simply by using and improving the "airport menu"), with simple entries like "departure OACI", "arrival OACI", "time of departure", "plane speed (no wind)", "intended altitude" and waypoints... Actually, there is an online tool which is awesome to do that:
Look at the sigmet layer and route entry... Very simple.
To be able to use the flight planning features of this app using windy would be amazing (except briefing and filing parts, we don't need that...). That would bring something new to the world thanks to Windy "moving wind particles" + TRUE RADAR DATA and LIGHTNINGS. (skyvector doesn't use real radar data).
To have a great weather tool for aviation, Windy will need to use:
-Radar data (OK)
-Wind data at different altitudes (OK)
-Clouds layers (tops, base, ect, OK)
-OACI airports database (OK)
-OACI Waypoints database (free)
-OACI VFR and IFR charts layers (free)
-Sigmet layer (sigmet messages are free but need ot be coded to be shown on the map)
-A dedicated page/menu with interactive entries to enter a route using OACI info with a desired altitude, and at least airplane speed. (don't know if it's possible on windy as I'm not a developer)
=> you could see the route on Windy map, and switch between determined aviation layers (radar, clouds, sigmets, navigation charts...)
=> A monster feature would be to have the vertical cross section of the flight path, showed on a kind of airgram that Windy already uses.
I'm in a hurry, I don't have much time to give you more details and correct my terrible written english but just look the skyvector thing, it's awesome and a windy version would be just perfect.