Radioplane — (USA)
- Radioplane KD2R-5 Shelduck — Target drone
- Radioplane OQ-2A — Target drone
- Radioplane OQ-19D — Target drone
- Radioplane RP-5 — World War II Target drone
Rand Robinson — (USA)
- Rand Robinson KR-1 — Single-seat single-engine high performance sport aircraft.
Raytheon — (USA)
- Raytheon AAM-N-6 Sparrow III — Medium-range semi-active radar homing air-to-air missile.
- Raytheon AGM-65A Maverick — Air-to-ground tactical missile (AGM) designed for close air support.
- Raytheon AGM-88 HARM — High-speed Anti-Radiation Missile (HARM) is a tactical, air-to-surface missile designed to home in on electronic transmissions coming from surface-to-air radar systems.
- Raytheon AIM-9 Sidewinder — Heat-seeking, short-range, air-to-air missile carried by fighter aircraft and recently, certain gunship helicopters.
- Raytheon GBU-24 Paveway III — GBU-24 is a family of laser-guided bombs, a sub-group of the larger Raytheon Paveway III family of weapons.
- Raytheon MIM-23 HAWK — The Raytheon MIM-23 HAWK is an American medium range surface-to-air missile.
- Raytheon T-1A Jayhawk — Twin-engined jet aircraft used by the United States Air Force for advanced pilot training.
- Raytheon T-6A Texan II — Single-engined turboprop aircraft built by the Raytheon Aircraft Company (now Hawker Beechcraft).
Republic — (USA)
- Republic P-47D-2 Thunderbolt (Razorback) — Single-engine single-seat World War II fighter-bomber.
- Republic P-47D-25 Thunderbolt (Bubbletop) — Single-engine single-seat World War II fighter-bomber.
- Republic (Curtiss) P-47G Thunderbolt (Razorback) — Single-engine single-seat World War II fighter-bomber.
- Republic P-47N Thunderbolt — Single-engine single-seat World War II fighter-bomber.
- Republic F-84C Thunderjet — Single-engine single-seat American-built turbojet fighter-bomber Aircraft.
- Republic F-84E Thunderjet — Single-engine single-seat American-built turbojet fighter-bomber Aircraft.
- Republic F-84F Thunderstreak — Single-engine single-seat American-built turbojet fighter-bomber Aircraft.
- Republic RF-84F Thunderflash — Single-engine single-seat American-built turbojet photo reconnaissance aircraft.
- Republic RF-84K Thunderflash — Single-engine single-seat American-built turbojet photo reconnaissance aircraft.
- Republic F-105B Thunderchief — Single-engine single-seat supersonic fighter-bomber used by the United States Air Force.
- Republic F-105D Thunderchief — Single-engine single-seat supersonic fighter-bomber used by the United States Air Force.
- Republic F-105G Wild Weasel — Two-seat supersonic fighter-bomber equipped with radar seeking missiles to remove radars and SAM installations.
- Republic RC-3 Seabee — Single-engine all-metal amphibious sports aircraft.
Ric Jet Systems — (USA)
- Ric Jet Systems Ric Jet-4 — Single-engine single-seat fixed-wing experimental aircraft.
Robin — (France)
- Robin R-2160 Sport — French low-wing fully-aerobatic two-seat trainer.
Robinson — (USA) Robinson Helicopter Company of Torrance, California
- Robinson R22 Beta II — Two-blade, single-engine light utility helicopter.
- Robinson R44 Raven — Four-place, light helicopter.
Rockwell — (USA) Rockwell International
- Rockwell YU-9A (YL-26) Aero Commander — Light Twin-engine high-wing utility/VIP transport aircraft.
- Rockwell Model 114 — American four-seat single piston-engine cabin monoplane.
- Rockwell Model 695 Aero Commander — Twin-engine turbo-prop business aircraft.
- Rockwell B-1A Lancer — Supersonic strategic bomber used by the United States Air Force.
- Rockwell B-1B Lancer — Supersonic strategic bomber used by the United States Air Force.
- Rockwell Space Shuttle Enterprise OV-101 — NASA Orbiter Vehicle Designation: OV-101 was the first Space Shuttle orbiter.
- Rockwell GBU-15 — Guided Bomb Unit 15 unpowered, glide weapon used to destroy high-value enemy targets.
Roloff — (USA)
- Roloff-Unger RLU-1 Breezy — American amateur build vintage configuration, three-seater light aircraft first flown in 1964.
Rose — (USA) Rose Aeroplane & Motor Company formed 1934 at 4415 E. Clark St., Chicago
- Rose Parakeet A-1 — Single-seat sporting biplane produced in small numbers in the United States during the 1930s.
Rotary Rocket, Inc. — (USA)
- Rotary Rocket Roton C-9 — Cone-shaped launch vehicle, with a helicopter rotor on top for use only during landing.
RotorWay — (USA)
- RotorWay Exec — Light-weight kit-built helicopter.
Royal Aircraft Factory — (UK)
- Royal Aircraft Factory B.E.2b — B.E.2b (Blériot Experimental) was a British single-engine two-seat biplane in service with the Royal Flying Corps (RFC) during World War I.
- Royal Aircraft Factory B.E.2c — B.E.2c (Blériot Experimental) was a British single-engine two-seat biplane in service with the Royal Flying Corps (RFC) during World War I.
- Royal Aircraft Factory S.E.5A — S.E.5A (Scout Experimental) British biplane fighter aircraft of the First World War.
- Royal Aircraft Factory S.E.5E — S.E.5E (Scout Experimental) American (Eberhart) built British biplane fighter aircraft of the First World War.
Rutan Aircraft Company — Scaled Composites (USA)
- Rutan Long-EZ — Two-seat homebuilt canard monoplane.
- Rutan Quickie — Light single seat homebuilt aircraft designed by Burt Rutan.
- Rutan Solitaire — Single-seat self-launching sailplane designed by Burt Rutan.
- Rutan Vari-Eze — Two-seat Homebuilt canard monoplane.
- Rutan VariViggen — Two-seat homebuilt canard monoplane.
- Rutan Voyager 76 — First aircraft to fly around the world without stopping or refueling.
Ryan — The Ryan Aeronautical Company (USA)
- Ryan AQM-34N Firebee — Jet-propelled target drone or unmanned aerial vehicle.
- Ryan BQM-34 Firebee — Jet-propelled target drone or unmanned aerial vehicle.
- Ryan Model 147 Firebee — Jet-propelled target drone or unmanned aerial vehicle.
- Ryan Navion — Single-engine, four-seat aircraft.
- Ryan Navion B — Single-engine, four-seat aircraft.
- Ryan NYP Spirit of St. Louis — The Spirit of St. Louis (Registration: N-X-211) is the custom-built single engine, single seat monoplane that was flown solo by Charles Lindbergh on the first non-stop flight from New York to Paris.
- Ryan PT-22 Recruit — Two seat, low wing monoplane training aircraft.
- Ryan ST3KR — Two seat, low wing monoplane training aircraft.
- Ryan ST-A — Two seat, low wing monoplane training aircraft.
- Ryan X-13 Vertijet — Experimental VTOL (Vertical Take-Off and Landing) aircraft.