PZL P.11 - Specifications (PZL P.11c With Mercury VI.S2 Engine)

Specifications (PZL P.11c With Mercury VI.S2 Engine)

Data from Polish Aircraft 1893-1939

General characteristics

• Crew: 1
• Length: 7.55 m (24 ft 9 in)
• Wingspan: 10.719 m (35 ft 2 in)
• Height: 2.85 m (9 ft 4 in)
• Wing area: 17.9 m2 (193 sq ft)
• Empty weight: 1,147 kg (2,529 lb)
• Gross weight: 1,630 kg (3,594 lb)
• Max takeoff weight: 1,800 kg (3,968 lb)
• Powerplant: 1 × Bristol Mercury V.S2 9-cyl. air-cooled radial piston engine, 420 kW (560 shp) or 1x 481 kW (645 hp) Polish Skoda Works Mercury VI.S2
  • P.11a - 370.6 kW (497 hp) – 385.5 kW (517 hp) Polish Skoda Works Mercury IV.S2
  • P.11b – 391.5 kW (525 hp) Gnome-Rhône 9K Mistral or I.A.R. 9K Mistral
  • P.11f – 443.7 kW (595 hp) I.A.R. 9K Mistral
  • P.11g – 626.37 kW (840 hp) P.Z.L. Mercury VIII
• Propellers: 2-bladed Szomański fixed pitch wooden propeller

Performance

• Maximum speed: 390 km/h (242 mph; 211 kn) at 5,000 m (16,404 ft), 300 km/h (186 mph) at sea level
• Stall speed: 98 km/h (61 mph; 53 kn)
• Range: 700 km (435 mi; 378 nmi)
• Service ceiling: 8,000 m (26,247 ft) absolute ceiling 11,000 m (36,089 ft)
• Time to altitude:
  
  • 5,000 m (16,404 ft) in 6 minutes
  • 7,000 m (22,966 ft) in 13 minutes
• Wing loading: 91.1 kg/m² (18.7 lb/sq ft)
• Power/mass: 0.279 kW/kg (0.166 hp/lb)

Armament

• Guns:
  
  • P.11a,b,c - 2 x 7.92 mm (0.312 in) KM Wz 33 or KM Wz 37 machine guns with 500rpg.
  • P.11c - optionally an extra 2 × 7.92 mm (0.312 in) KM Wz 33 machine guns with 300rpg.
  • P.11f - 4 x 7.92 mm (0.312 in) FN Browning machine guns.
  • P.11g - 4 x 7.92 mm (0.312 in) KM Wz 36 machine guns.