Arado Ar 234 Blitz
Year: Late 1944
Top Speed: 461 mph
Weapons: Rear-firing 20mm cannons; 2,000lbs of bombs

Results: Achieved operational combat status but used primarily as a high-speed reconnaissance aircraft over London.

Bachem Ba 349 Natter
Year: 1945
Top Speed: 497 mph
Weapons: 24 Fohn 2.87 in unguided rockets in the nose

Results: 10 were deployed at Kirchheim as operational for combat duties but the sites were overrun by advancing allied forces before they would ever fly against allied bombers.

Fieseler Fi 103R
Year: 1944
Weapons: Pilot-Guided suicide bomb; Warhead of 1,874 lbs

Results: This one-man 'suicide jet' never came to fruition after it's developmental phase concluded.

Focke-Wulf Ta 183 Huckebein
Year: 1945
Weapons: 4 x 30mm Mk 108 cannons; 1,000lbs of bombs

Results: Only one prototype was under construction by May 1944 before the end of the war, thus no working examples were ever finished. It is believed that the Soviets captured the plans and developed the MiG-15 from it, but this is still considered speculation and similarities are all but superficial.

Heinkel He 162 Volksjager (People's Fighter)
Year: 1944
Weapons: 2 x 30mm MK 108 Cannons or 2 x MG 151 Cannons in nose.

Results: Some 275 He 162's achieved operational combat status for unit I/JG 1 but never saw significant combat. The allies captured several of this type of fighter and returned it to the states for evaluation.

Heinkel He 178 - (Technology Demonstrator)
Year: 1939
Weapons: None

Results: This technology demonstrator was the world's first aircraft to fly solely on jet power. After in-depth testing, it was turned over to the Berlin Air Museum and ultimately damaged in an Allied air raid.

Heinkel He 280
Year: 1941
Weapons: 3 x Nose-Mounted 20mm MG 151 Cannons

Results: The world's first fighter-designed military jet plane was plagued with developmental problems and dropped in favor of the Messerschmitt Me 262.

Henschel Hs 132
Year: Late 1945
Weapons: 1 x 1,102lb bomb (V1 model); proposed 2 x 20mm MG 151 cannons (V2 model) and 2 x MG 151 20mm cannons with 2 x MK 103 30mm cannons (V3 model)

Results: 3 versions ordered with just 1 (V1 model) reaching full construction completion. All examples captured by Soviet forces.

Horton Ho IX (Gotha Go 229) - Flying Wing
Year: 1943
Weapons: 4 x 30mm MK 103 Cannons

Results: Developed but never flown in combat due to the end of the war. Development house was overrun by advancing Allied forces and returned to America for further evaluation at wars end.

Junkers Ju 287
Year: 1944
Weapons: Unknown gun armament in tail; 8,818 lbs of bombs

Results: The Junkers Ju 287 never went beyond the testing and developmental phase, ultimately being captured and turned over to Soviet forces.

Messerschmitt Me 262 Schwalbe (Swallow)
Year: 1944
Weapons: 4 x MK 108 30mm Cannons in nose

Results: Plagued by developmental issues, the Me 262 went on to see operational combat status over Europe, ultimately succumbing to the advancing Allied ground forces.

Messerschmitt Me 163 Komet (Comet)
Year: 1944
Weapons: 2 x 30mm MK 108 Cannons

Results: The rocket-powered 300 Me 163 Komets went on to see combat action over Europe, downing 9 confirmed Allied kills before wars end.