|
BUILDER |
NAME |
ENGINES |
SERVICE |
COMMENTS |
| YA-7D | LTV AEROSPACE | CORSAIR II | 1 | TF41-A-1 | AF | PROTOTYPE A-7D |
| YAL-1A | TBD | TBD | | TBD | AF | COMMERCIAL BOEING 747-400 MODIFIED WITH A HIGH ENERGY LASER WEAPON SYSTEM TO AUTONOMOUSLY DETECT, IDENTIFY, AND DESTROY BOOSTING THEATER BALLISTIC MISSILES |
| YC-7A | DEHAVILLAND | CARIBOU | 2 | R-2000-7M-2 | ARMY | PROTOTYPE C-7 |
| YC-14A | BOEING | NONE | 2 | CF-6-50A-GE | AF | PROTOTYPE STOL TRANSPORT WITH HIGH WING, T-TAIL, REAR CARGO LOADING DOOR, AND TRICYCLE LANDING GEAR FOR UNIMPROVED FIELD OPERATIONS, ENGINES MOUNTED ABOVE AND FORWARD OF WINGS (2 CREW) |
| YC-15A | MCDONNELL DOUGLAS | NONE | 4 | JT-8D | AF | PROTOTYPE STOL TRANSPORT SIMILAR TO YC-14A, ENGINES ARE MOUNTED ON PYLONS BENEATH THE HIGH WING, JET EXHAUST DIRECTED ON FLAPS TO USE EXTERNALLY BLOWN FLAPS FOR LIFT |
| YCH-53E | SIKORSKY | SUPER STALLION | 3 | T46-GE-416 | NAVY | PROTOTYPE CH-53E |
| YE-2C | GRUMMAN | HAWKEYE | 2 | T56-A-8/-8A/-8B | NAVY | PROTOTYPE E-2C WITH VAPOR CYCLE AIR SYSTEM, REDESIGNED ROTODOME LARGER NOSE SECTION, AND NEW AVIONICS SUBSYSTEM |
| YEH-60B | SIKORSKY | BLACK HAWK | 2 | GE T-700 | ARMY | UH-60A MODIFIED FOR RADAR INSTALLATION AND SPECIAL AVIONICS, PROTOTYPE FOR STANDOFF TARGET ACQUISITION SYSTEM |
| YEZ-2A | TBD | NONE | | TBD | NAVY | PROTOTYPE AIRSHIP FOR ELECTRONIC MISSIONS |
| YF-4J | MCDONNELL DOUGLAS | PHANTOM II | 2 | J79-GE-8B | NAVY | PROTOTYPE F-4J |
| YF-15A | MCDONNELL DOUGLAS | EAGLE | 2 | F100-PW-100 | AF | PROTOTYPE F-15A |
| YF-15B | MCDONNELL DOUGLAS | EAGLE | 2 | F100-PW-100 | AF | PROTOTYPE F-15B |
| YF-16A | LOCKHEED MARTIN | FIGHTING FALCON | 1 | F100-PW-200 | AF | PROTOTYPE F-16A |
| YF-16B | LOCKHEED MARTIN | FIGHTING FALCON | 1 | F100-PW-200 | AF | PROTOTYPE F-16B |
| YF-22A | LOCKHEED, BOEING, GENERAL DYNAMICS | NONE | 2 | GE-YF120 | AF | PROTOTYPE SINGLE-SEAT, TWIN ENGINE, SUPERSONIC AIR SUPERIORITY FIGHTER |
| YOV-10D | NORTH AMERICAN ROCKWELL | BRONCO | 2 | T76-G-10-10A/ | NAVY | PROTOTYPE NIGHT OBSERVATION GUNSHIP SYSTEM (NOGS) VERSION OF THE OV-10A, HAS FORWARD LOOKING INFRARED (FLIR) SENSOR, 20MM FLEXIBLE GUN TURRET |
| YP-3C | LOCKHEED | ORION | 4 | T56-A-14 | NAVY | PROTOTYPE P-3C WITH A NEW INTEGRATED AVIONICS AND AUTOMATED STORES DISPENSING SYSTEM |
| YS-2G | GRUMMAN | TRACKER | 2 | R-1820-82 | NAVY | MODIFIED S-2E USED AS TESTBED FOR ASW AVIONICS SYSTEM DEVELOPMENT |
| YSH-2E | KAMAN | SEASPRITE | 2 | T58-GE-8B/-8F | NAVY | HH-2D MODIFIED TO ADVANCED LAMPS CONFIGURATION |
| YSH-2G | KAMAN | SEASPRITE | 2 | T700-GE-401 | NAVY | PROTOTYPE UPGRADE OF SH-2F |
| YSH-3J | SIKORSKY | SEA KING | 2 | T58-GE-10 | NAVY | SH-3H MODIFIED AS TEST BED FOR LAMPS MARK III (4 CREW) |
| YSH-60B | SIKORSKY | SEA HAWK | 2 | T700-GE-401 | NAVY | SH-60B AIRCRAFT WITH UNIQUE CONFIGURATION, REQUIRES MORE MANPOWER AND SPECIAL PARTS |
| YT-2B | NORTH AMERICAN ROCKWELL | BUCKEYE | 2 | J60-P-6 | NAVY | PROTOTYPE T-2B |
| YT-34C | BEECH | MENTOR | 1 | PT6A-25 | NAVY | PROTOTYPE T-34C |
| YTH-67A | TBD | CREEK | | TBD | ARMY | PROTOTYPE INITIAL ENTRY-LEVEL ROTARY WING AIRCRAFT FOR TRAINING ARMY FLIGHT PERSONNEL |
