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PZL.48 Lampart Aircraft Information

PZL.48 Lampart

PZL.48 Lampart

Manufacturer: Państwowe Zakłady Lotnicze
Status: Project
Primary user: Polish Air Force (planned)
Number built: Incomplete prototype
Developed from: PZL.38 Wilk
Variants: PZL.54 Ryś

The PZL.48 Lampart (Leopard) was a Polish heavy fighter-bomber design, that remained only a project, owing to the outbreak of World War II.


Design and development

The PZL.48 was a development of the heavy fighter-bomber PZL.38 Wilk, designed by Franciszek Misztal. Owing to problems with PZL.38's PZL Foka V8 engines and the excessive weight of the prototype it was decided in 1938 to build a variant of the plane using more powerful radial engines, named PZL.48 Lampart'. Despite the new plane appearing almost identical to the PZL.38, apart from the engines, it was, in fact, redesigned in order to decrease weight. French 640 hp Gnome-Rhxne 14M engines of small diameter were chosen.

Building of a prototype started in 1939, but by summer 1939 only a wing had been made, while the fuselage was still under construction. It was planned to carry out static trials in Autumn 1939 and to fly the prototype in the first half of 1940. Further plans were to produce 110 Lamparts for the Polish Air Force in 1941. Owing to the German invasion on 1 September 1939, all plans were cancelled.

In early 1939 Misztal also worked out the initial design of the PZL.54 Ryś - a development of the PZL.48 with Hispano-Suiza 12L in-line engines.

Operators (planned)


Polish Air Force


It was a twin-engine low-wing cantilever monoplane of metal construction, metal covered. The fuselage was semi-monocoque, elliptic in cross-section. The crew of two - pilot and rear gunner/bombardier/observer - sat under separate canopies, far from each other, fitted with dual controls. The canopy of the pilot's cockpit opened sideways. Three part wing, outer parts built around light closed profiles. Wings fitted with slats and split flaps. Twin vertical stabilizers. Engines in underwing nacelles with NACA covers. Retractable landing gear, with main wheels retracting into engine nacelles, and a rear skid. Three-blade variable pitch propellers. Integral fuel tanks in wings. Armament (planned): two fixed 20 mm guns and two 7.92 mm PWU wz.36 machine guns in the fuselage nose, twin 7.92 mm PWU wz.37 machine guns of a rear gunner, hiding in the fuselage (Lampart A) or 8 fixed machine guns (Lampart B). It could carry 300-kg of bombs.

Performances below are expected figures.

General characteristics

Crew: 2, pilot, rear gunner/bombardier
Length: 8.7 m ()
Wingspan: 11.5 m ()
Height: 2.50 m ()
Wing area: 21.5 m (ft)
Empty weight: 2,400 kg ()
Loaded weight: 3,500 kg ()
Useful load: 1,100 kg ()
Powerplant: 2x Gnome-Rhxne 14M07 air-cooled 14-cylinder radial engine, 730 hp () each


Maximum speed: 560 km/h
Range: 1500 km ()
Service ceiling: 10,000 m ()
Rate of climb: 9 m/s estimated ()
Wing loading: 154 kg/m ()


2 x 20 mm FK wz.38D cannon fixed in nose
2 x 7.92 mm PWU wz.36 machine guns fixed in nose
2 x 7.92 mm PWU wz.37 machine guns movable at the upper rear
300 kg bombs

Andrzej Glass: "Polskie konstrukcje lotnicze 1893-1939" (Polish aviation constructions 1893-1939), WKiŁ, Warsaw 1977 (Polish language, no ISBN)

Related development

PZL.38 Wilk
PZL.54 Ryś

Comparable aircraft

Messerschmitt Bf 110
Potez 630
Fokker G.I
Kawasaki Ki-45

PZL.48 Lampart Pictures and PZL.48 Lampart for Sale.

Living Warbirds: The best warbirds DVD series.

Source: WikiPedia

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