Okay, here's my first go at stating a current US military vehicle:
A-10 Thunderbolt
ST/HP: 105
Hnd/SR: +1/3
HT: 12f
Move: 3/220
SM: +5
Occ: 1SP
DR: 3
Range: 2,580
Loc.: g3WWi
Stall: 69
ST/HP is a bit less than the "cube root times 4" rule would suggest, I'm using existing aircraft as a guide there. Hnd/SR is a wild guess. SM +5 is debatable, it's 53 ft. 4 in. long and I went with the lower number in part based on it being a 1 seater.
Weapons include the GAU-8/A Avenger, which has a number of advantages over similar caliber autocannons including the use of APDU rounds. Dmg. 6d×6(2) pi++ inc, Acc 6, Range 3,000/10,000, Rof 65, Rcl 2. Credit for these stats goes to
HANS. Options for rockets include 70mm Hydra rockets (
High-Tech) and 5” Zuni rockets (
GURPS SEALs in Vietnam).
Missile options are Sidewinders (again in
High-Tech) and AGM-65 Mavericks. The latter is a 30 cm (!) ATGM, whose damage stats should probably be something like Dmg 6dx30(10) cr inc + linked 6dx14 cr ex [15d], Acc 4, Range 350/8800.
Cockpit has DR 75 from the sides/below (thanks to HANS and Varyon for catching this).
Electronic gadgetry is probably similar to the Viper in
Pyramid #3/53, "Dogfight Action!". I'll leave bombs alone for now.
Update: This was edited to clarify that the Thunderbolt's ATGM missile is the AGM-65.
Update II: Added HANS's GAU-8 stats.
Update III: Added cockpit armor.