Hirobo AH-1S Tow Cobra (1980)

		Specification:      fladbed  SST  Full Length of Fuselage  1480 mm  1490 mm  Rotorhead  Hirobo scale  SSR III  Main Rotor Dia  1510 mm  1550 mm  Tail Rotor Dia  310 mm  256 mm  Engine  .60 cu /10 cc  .60 - 80 cu  (10 - 13.5 cc)  Full Equipped Weight  5200 g  5800 g
Documents:
Bell AH-1S (60) drawing		body kit manual	mechanical kit manual
Reports:
Bell AH-1S (60) Build review  -  Build notes and flight review Sep 1983 RCH.	Bell AH-1S (60) Kit review  -  Drawings and initial look May 1983 RControlled Helicopters	Quick look from Jan 1981 UK magazine.	S60-II mechanic

  60 size for flatbed mechanics

Bell UH-1B (60) Build manual  -  This manual is suitable for setting up the Cobra's flatbed mechanics.

Photos of RCH review model.

Hirobo AH-1S III Tow Cobra (198#)

Same basic body but major revisions carried out to use SST mechanics with SSR3 rotor head and engines sizes 60 to 80.  Recommended was to use an engine with rear exhaust as the silencer could be kept inside the line of the fuselage and exit through the mock exhaust pipe and thus give extra scale realism.

  AH-1S - 60 size SST mechanics with FFR rotor head (1994 catalogue).