@sender46 The ICAO code is 4 characters; the Arrow IV is P28T and the Turbo Arrow IV is P28U.
See this site: https://www.icao.int/publications/doc8643/pages/search.aspx
That site also lists the Turbo Arrow III as P28S :thinking_face:
I was looking at the list at eurocontrol.int before (https://contentzone.eurocontrol.int/aircraftperformance/details.aspx?ICAO=P28T https://contentzone.eurocontrol.int/aircraftperformance/details.aspx?ICAO=P28R).
@jaxx I'm not sure what kind of type codes that site is using, but it doesn't claim anywhere they are ICAO codes aside from using that key in the URL (which might just be a result of legacy code).
The official ICAO codes are:
- P28R - Arrow III
- P28T - Arrow IV
- P28S - Turbo Arrow III
- P28U - Turbo Arrow IV
- P28A - Warrior
The fact that these come from the official ICAO website should remove any doubt as to which site is correct