Messerschmitt Me-109 H-0 (Source: Messerschmitt "O-Nine" Gallery)

Originally the H-series was intended as a high performance fighter (Hochleistungsjäger). This was based on the F-4 with a slightly greater wing span and a DB 601E engine.

Messerschmitt set his hopes for a high altitude fighter on a development of the Me-209 II program.

Several prototypes were used to test the DB 628 engine which was intended for the H series. These were the V-49, V-50, V-54 and V-55.

H-0 (1943)
A H-0 pre-production aircraft was completed in 1943 and sent to Rechlin for trials. This was based on the Me-109 F-4/Z. After this a small batch of aircraft were produced, armed with 2 MG 17 plus an engine mounted MG 151.

H-1 (1943)
This were converted G-5 airframes which were tested operationally in France in 1944. Pilot opinions were positive but the aircraft were withdrawn because of concern over the structural integrity of the wing. By this time the Ta-152H had been selected as the high altitude fighter for the Luftwaffe and the Me-109H was cancelled.

H-2 (project)
Fighter powered by a DB 603G or Jumo 213E with GM-1 boost. Armed with 2 x MG 131 and 3 x MK 108.

H-3 (project)
Reconnaissance version of the H-2. Unarmed.

H-4 (project)
Fighter - bomber version of the H-2.

H-5 (project)
High altitude interceptor powered by the DB 605L.

Messerschmitt Me-109 H-1 (Source: Messerschmitt "O-Nine" Gallery)

Messerschmitt Me-109 H-2 (Source: Messerschmitt "O-Nine" Gallery)

Messerschmitt Me-109 V-54 (Source: Messerschmitt "O-Nine" Gallery)

Messerschmitt Me-109 V-55 (Source: Messerschmitt "O-Nine" Gallery)