Henschel Hs P.75
This 1941 aircraft design was to be a possible
successor to the Messerschmitt Bf 110 heavy fighter. Although of a unusual
configuration for that time, there were advantages (and disadvantages) to
its rear wing/forward canard construction.
The Hs P.75 featured a tapered fuselage, with
the slightly swept-back wings being mounted mid-fuselage and set back to
the rear of the aircraft. The widened fuselage was designed to house the
Daimler Benz DB 610 engine, which were two DB 605 engines joined side-by-side,
just aft of the cockpit. These were the same engines that the Heinkel He
177 used, and were found to be prone to overheating and catching fire.Due
to this development, they were changed in 1942 to the liquid-cooled, 24 cylinder
Daimler Benz DB 613 engines (two coupled DB 603s) that produced 3500 horsepower.
Both engine configurations were to drive contrarotating propellers (to offset
tourque) of a 3.2m (10' 6") diameter via an extension shaft. There were a
pair of swept-back canards located on the nose of the aircraft, that were
to serve the purpose of elevators. The vertical tail unit was mounted beneath
the fuselage, so that it could act as a tail bumper upon takeoff so that
the propellers would not strike the ground. Since the propellers were located
at the rear in a pusher configuration, a tricycle landing gear arrangement
was chosen. Fuel was contained in three tanks, one in each wing and one
behind the cockpit. A single pilot sat in the cockpit which was located
about midway along the fuselage, and four Mk 108 30mm cannons were mounted
in the nose.
The advantages of the pusher propeller/forward
canard design was that it opened up the pilot's view, plus the weapons installation
was much simplified and could be concentrated. The disadvantages would
be engine cooling plus an ejecction system or propeller jettison would have
to be designed for the pilot to safely exit the plane in case of an emergency.
This basic design was realized in several WWII
aircraft designs, notably the Kyushu J7W1 Shinden
and Curtiss XP-55 Ascender
. Although good results were obtained with a model in the windtunnel, this
design was not followed up.
Henschel Hs P.75 Data
Henschel Hs P.75
|CzechMaster (CMK) #305
||Hollow fuselage halves, out of production
||resin & decals
||Re-release of CMK kit, has instructions and decals
View Andreas Otte's Hs P.75 images
Henschel Hs P.75 Model Photos (1/72 CMK kit)
Henschel Hs P.75 Cutaway, showing interior details
drawn by Justo Miranda/
Reichdreams Research Services
Kyushu J7W1 Shinden
|Curtiss XP-55 Ascender
Click on the small 4-view drawing on the right to view the large version
Justo Miranda's excellent Henschel Hs P.75 drawing.