X-55 Advanced Composite Cargo Aircraft (ACCA)
Notional mission profiles were provided as general guidance for top-level physical scaling. They were only intended to convey the scope of the desired range of performance and expedite the configuration synthesis process. Initial trade space targets for cargo bay volume and flooring strength would be biased toward standard 463L pallets and light, wheeled vehicle cargo in a roll-on / roll-off configuration. Initial targets for cargo bay accommodations: 3 x 463L pallets or 20 combat-equipped troops or 1 up-armored HMMWV. Width would accommodate a 14 inch walkway in addition to load.
| Self-Deploy | Theater Logistics | Forward Re-supply | |
| range | 2400 nm | 1200 nm | |
| radius | 600 nm | ||
| Payload | 4000 lb | 15000 lb | 15000 lb outbound, return empty |
| Cruise Speed | BCA/M, Vcr > 350 kts | BCA/M, Vcr (minimum) 350 kts | BCA/M, Vcr (minimum) 350kts |
| Mission Reserves | 45 min at SLS | 45min | 45min |
| STOL landing | less than 2500ft over 50 ft obstacle, 6000 ft / 95 deg F atmosphere | ||
| Initial Takeoff | 3000 ft maximum over 50 ft obstacle, 6000 ft /95 deg F atmosphere | 3000ft maximum over 50 ft obstacle, 6000 ft / 95 deg F atmosphere | |
| Mid-Mission takeoff and landing performance (with payload) | less than 2500ft over 50 ft obstacle, 6000 ft / 95 deg F | ||
| Takeoff and Landing Surface Conditions for Missions 2 and 3 | -- All unimproved sites, rolling friction coefficient= .07, max braking coefficient = .25 | ||
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