15 - 15 15-10. ATTACK HELICOPTERS This category of helicopters includes the AH 1S Cobra and the AH 64A Apache. a. AH 1S Cobra. Table 15-5 shows specifications for the Cobra; Figure 15-16 shows the aircraft from three angles. Table 15-5. SPECIFICATIONS FOR THE AH 1S (COBRA) Rotor Diameter 44 feet Length: Rotor Operating Fuselage 53 feet 1 inch 44 feet 9 inches Span, Maximum Lateral 11 feet 8 inches Height 11 feet 7 inches Tread (Skids) 7 feet Rotor Ground Clearance (Static) 7 feet 10 inches Clear area needed for Rotors 16.18 meters TDP # 2 35 meters diameter Figure 15-16. AH 1S (COBRA)