Specifications
| KC-135A model | KC-135E/R models | |
| Type | five-crew inflight refuelling tanker | five-crew inflight refuelling tanker |
| Contractor | Boeing | Boeing |
| Country of Origin | USA | USA |
| Powerplant | four Pratt & Whitney J57-P-59W Turbojets | four CFM International F108-CF-100 turbofans |
| Thrust | 13,750lbs each engine | 22,000lbs each engine |
| Length | 134ft 6in | 136ft 3in |
| Height | 41ft 8in | 41ft 8in |
| Wingspan | 130ft 10in | 130ft 10in |
| Wing Area | 2,433 Sq. ft | 2,433 Sq. ft |
| Max Speed | 585mph @ 30,000ft | 585mph @ 30,000ft |
| Climb Rate | 1,290ft/minute | unknown |
| Service Ceiling | 50,000ft | 50,000ft |
| Radius | 3,450 miles to offload 24,000lbs of fuel | 2,875 miles to offload 36,000lbs of fuel |
| Empty Weight | 106,306bs | unknown |
| Max Take-Off Weight | 316,000lbs | 322,500lbs |
| Payload | either: | 203,288lbs of fuel for transfer and self-use |