Dornier Do P.254 (Do 535 / He 535)
Nazi Germany (1945)
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The Dornier P.254 project was a mixed-powerplant version of the Do 335 Arrow heavy fighter - it did not proceed beyond the paper stage.
Detailing the development and operational history of the Dornier Do P.254 (Do 535 / He 535) Mixed-Propulsion Heavy Fighter Aircraft Proposal. Entry last updated on 1/22/2017. Authored by Staff Writer. Content ©www.MilitaryFactory.com
The P.254 (Do 535) was to benefit from the foundation laid in the Do 335 in keeping the nose-mounted Daimler-Benz DB603A piston engine at the nose but substitute the tail propulsion system for a Heinkel-Hirth HeS 011 turbojet engine for an additional thrust output of 2,866lb. Theoretically, the P.254 would become an even faster prop-driven system than the Do 335 but it lacked swept-back wings benefitting flight at higher speeds. With the German Air Ministry favoring the more conventional, competing Ta 152 high-altitude fighter, Dornier engineers hoped the addition of a jet engine to their Do 335 would keep the promising heavy fighter program alive for a time longer.
It is unclear what over-battlefield role the P.254 would have had upon reaching operation service but it may have been in line with the usual German late-war push for viable fighters, interceptors and night-fighters needed to content with the Allied day-night bombing campaigns. There was most likely a secondary role of high-speed bombing to be built in.
Despite the venture, no P.254 aircraft were built from the existing Do 335 design and the program was eventually dropped from serious consideration - but not before being passed on to Heinkel during October of 1944 and recast as the He 535.
Any available statistics for the Dornier Do P.254 (Do 535 / He 535) Mixed-Propulsion Heavy Fighter Aircraft Proposal are showcased in the areas immediately below. Categories include basic specifications covering country-of-origin, operational status, manufacture(s) and total quantitative production. Other qualities showcased are related to structural values (namely dimensions), installed power and standard day performance figures, installed or proposed armament and mission equipment (if any), global users (from A-to-Z) and series model variants (if any).
Our Data Modules allow for quick visual reference when comparing a single entry against contemporary designs. Areas covered include general ratings, speed assessments, and relative ranges based on distances between major cities.
Relative Maximum Speed Rating
This entry's maximum listed speed (525mph).
Graph average of 562.5 miles-per-hour.
Graph showcases the Dornier Do P.254's operational range (on internal fuel) when compared to distances between major cities.