|
BUILDER |
NAME |
ENGINES |
SERVICE |
COMMENTS |
| X-26A | SCHWEIZER | NONE | | NONE | NAVY | TWO-PLACE, HIGH PERFORMANCE SAILPLANE TO BE USED FOR NAVY TEST PILOT TRAINING |
| X-29A | GRUMMAN | NONE | 1 | F-404-GE-400 | ALL | EXPERIMENTAL FIGHTER WITH 33-DEGREE FORWARD SWEEP, AEROELASTIC, GRAPHITE EPOXY COMPOSITE WINGS, CLOSE COUPLED VARIABLE INCIDENCE CANNARDS AND DIGITAL FLY-BY-WIRE FLIGHT CONTROL SYSTEM |
| X-30A | TBD | NONE | TBD | | DOD/NASA | EXPERIMENTAL AEROSPACE PLANE ABLE TO OPERATE AT HYPERSONIC VELOCITIES OR ACCELERATING DIRECTLY INTO ORBIT |
| X-31A | ROCKWELL | NONE | 1 | F-404-GE-400 | NAVY | ENHANCED FIGHTER MANEUVERABILITY (EFM) DEMONSTRATOR WITH TECHNOLOGIES WHICH WILL PROVIDE MANEUVER AGILITY DURING CLOSE-IN AERIAL COMBAT |
| X-32A | TBD | TBD | 1 | DERIVATIVE AFTE | ARPA | FIRST CONTRACTOR TEAM (X-32) FULL-SCALE TECHNOLOGY DEMONSTRATOR AIRCRAFT INTENDED TO VALIDATE TECHNOLOGIES RELEVANT TO FIELDING A MULTI-SERVICE AIRCRAFT |
| X-32B | TBD | TBD | 1 | DERIVATIVE AFTE | ARPA | FULL-SCALE TECHNOLOGY DEMONSTRATOR AIRCRAFT INTENDED TO VALIDATE TECHNOLOGIES RELEVANT TO FIELDING A MULTI-SERVICE AIRCRAFT |
| X-32C | TBD | NONE | | TBD | JAST | JOINT ADVANCED STRIKE TECHNOLOGY (JAST) PROGRAM FULL-SCALE TECHNOLOGY DEMONSTRATOR AIRCRAFT INTENDED TO VALIDATE TECHNOLOGIES RELEVANT TO FIELDING A MULTI-SERVICE AIRCRAFT WITH CATAPULT AND ARRESTING CAPABILITY |
| X-35A | TBD | TBD | | TBD | JAST | SECOND CONTRACTOR TEAM (X-35), JOINT ADVANCED STRIKE TECHNOLOGY (JAST) PROGRAM, FULL-SCALE TECHNOLOGY DEMONSTRATOR AIRCRAFT INTENDED TO VALIDATE TECHNOLOGIES RELEVANT TO FIELDING A MULTI-SERVICE AIRCRAFT |
| X-35B | TBD | TBD | | TBD | JAST | JOINT ADVANCED STRIKE TECHNOLOGY (JAST) PROGRAM FULL-SCALE TECHNOLOGY DEMONSTRATOR AIRCRAFT INTENDED TO VALIDATE TECHNOLOGIES RELEVANT TO FIELDING A MULTI-SERVICE AIRCRAFT |
| X-35C | TBD | TBD | | TBD | JAST | JOINT ADVANCED STRIKE TECHNOLOGY (JAST) PROGRAM FULL-SCALE TECHNOLOGY DEMONSTRATOR AIRCRAFT INTENDED TO VALIDATE TECHNOLOGIES RELEVANT TO FIELDING A MULTI-SERVICE AIRCRAFT WITH CATAPULT AND ARRESTING CAPABILITY |
| X-36A | MCDONNELL DOUGLAS | NONE | 1 | F112-WR-100 | NASA | REMOTELY PILOTED RESEARCH VEHICLE USED TO DEMONSTRATE THE FEASIBILITY FOR A TAILLESS AGILE FIGHTER |
| X-37A | TBD | NONE | | TBD | NASA | EXPERIMENTAL FLIGHT VEHICLE WHICH WILL INTEGRATE AND TEST EARTH-TO-ORBIT AND ORBIT-TO-ORBIT REUSABLE SPACE TRANSPORTATION TECHNOLOGIES |
| X-38A | TBD | NONE | | TBD | NASA | CONCEPT MODEL FOR A CREW RETURN VEHICLE, A "LIFEBOAT" FOR RETURNING SPACE CREW MEMBERS TO EARTH |
| XFV-12A | NORTH AMERICAN ROCKWELL | NONE | 1 | F-401-PW-400 | NAVY | EXPERIMENTAL HIGH-WING VTOL TO EVALUATE THRUST AUGMENTATION PRINCIPLE (1 CREW) |
| XV-15A | BELL | NONE | 2 | T53 | ARMY | RESEARCH AIRCRAFT USED TO STUDY TILT ROTOR VTOL/STOL CONCEPTS (3-BLASE 25' DIAMETER ROTORS) |
