In 1950, Wright Air Development Center of the U.S.A.F. had worked with Curtiss and Hamilton to study the concept of new propeller which could approach supersonic speed to a piston-engine fighter. The engineers of the WADC needed a suitable airframe to test the concept, they selected most powerful Allison turboprop engine at the time, and chose to modify the Republic F-84F for this new role. The concept also interested U.S. Navy to join the evaluation for a high-speed jet fighter with low fuel consumption by low take-off speed from turboprop driven propellers. In 1952, two prototypes were ordered to Republic and were designated XF-84H. Its maiden flight was made in 1955. The performance was not outstanding as it never reached supersonic speed, but still became the fastest propeller-driven fighter. After proceeded with several flights, both the Air Force and Navy lose further interest in the research as the mid-flight refuel experiment for extending the range of pure-jet fighters was being successful.

Type:

Purpose:

Span:

Length:

Height:

Engine:

Max.speed:

Crew:

Armament:

Carrier-based fighter

To be used in experiments with different propellers at supersonic speed

33ft.6in

51ft.6in.

15ft.4in.

1x Allison XT-40-A-1 turboprop

670 mph

1

1x 20mm cannon

The Republic XF-84H Thunderscreech is suitable to group with the following collection series.

Post war U.S.A.F. fighter 1946 ~ 1962

Republic F-84 Thunderjet

McDonnell XF-85 Goblin

North American F-86 Sabre

Curtiss XF-87 Blackhawk

McDonnell XF-88 Voodoo

Northrop F-89 Scorpion

Lockheed XF-90

Republic XF-91 Thunderceptor

Convair XF-92A

North American YF-93A (F-86C)

Lockheed F-94A Starfire

North American YF-95A (F-86D)

Republic YF-96A (F-84F) Thunderflash

Lockheed YF-97A (F-94C)

Hughes XF-98 Falcon (AIM-4)

Lockheed XF-99 Bomarc

North American F-100A Super Sabre

McDonnell F-101A Voodoo

Convair F-102 Delta Dagger

Republic XF-103 Thunderwarrior

Lockheed F-104A Starfighter

Republic F-105B Thunderchief

Republic XF-106 (XF-84H) Thunderscreech / Convair F-106 Delta Dart

North American YF-107A Ultra Sabre

North American XF-108 Rapier

Bell XF-109

McDonnell F-110A (F-4C) Spectre

General Dynamics F-111A

Post war U.S.  Pull-Push fighter prototype

Convair XFY-1 Pogo

Lockheed XF15C-1

Republic XF-84H (XF-106) Thunderscreech

Ryan XF2R-1 Dark Shark

¡@

Republic F-84 Family

XP-84

F-84B/C/D/E/G Thunderjet

F-84F (YF-96) Thunderstreak

XF-84H (XF-106) Thunderscreech

RF-84F Thunderflash

¡@

Post war U.S. experimental aircraft

¡@

Post war U.S. Turbo-prop aircraft 1946 ~ 1962