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RWD 2

April 10, 2024

The RWD 2 was a 1929 Polish single-engine high-wing monoplane sports plane constructed by the RWD team.

RWD 2
RWD-2 during the Challenge 1930
Role Sports plane
National origin Poland
Manufacturer Warsaw University of Technology workshops
Designer RWD team
First flight July 1929
Introduction 1929
Retired 1935
Primary user Polish civilian aviation
Produced 1929-1930
Number built 4

Development edit

The RWD 2 was constructed by the RWD team of Stanisław Rogalski, Stanisław Wigura and Jerzy Drzewiecki in the Aviation Section of Mechanic Students' Club of Warsaw University of Technology. It was a development of their first design RWD-1. Its feature was a unique, fish-shaped fuselage, with good aerodynamics, but without a direct view forward from the pilot's seat. For this reason, they were later nicknamed: blind mice.

The first prototype (registration SP-ACE) was completed and flown by the designer Jerzy Drzewiecki in July 1929. Since it appeared successful in sports flying, three more RWD-2s were built in 1930 (registration SP-ADJ, -ADG, -ADH).

Use edit

In August–September 1929, Franciszek Żwirko and Stanisław Wigura flew the prototype across Europe, on the 5000 km Warsaw-Paris-Barcelona-Warsaw route (it was the first long foreign raid of the Polish-designed aircraft). On 16 October 1929, Żwirko and Antoni Kocjan set an international FAI altitude record of 4,004 m (13,133 ft) in the light tourist plane class (below 280 kg / 616 lb empty weight).

Three serial aircraft took part in the Challenge 1930 international touring planes competition in July 1930. Stanisław Płonczyński took the 19th place, as the best Pole (for 35 qualified and 60 starting crews), and Edward Więckowski took the 21st place (the third Józef Muślewski was disqualified due to time exceeding, but he completed the rally off the contest). In the Challenge, RWD-2s won the trial of lowest fuel consumption (5.2 kg / 100 km). According to Flight, they "appear to possess particularly good air-sailing qualities".[1]

RWD 2s were also used in several Polish air competitions and other minor international ones, with some success. They were also used for training in the Polish Aero Club in Warsaw, Poznań and Vilnius. They were withdrawn in 1935 (one was bought by a private owner and flew for some time longer).

Description edit

Wooden construction high-wing cantilever monoplane, conventional in layout. Fuselage rectangular in cross-section, plywood covered. Single-spar one-part wing of a trapezoid shape, covered with canvas and plywood in front. Cantilever empennage, covered with plywood (stabilizers) and canvas (rudder and elevators). Crew of two, sitting in tandem, with dual controls. The crew cabs were open on the sides in upper part, they had individual doors on the right side. Salmson 9Ad, 46 hp (40 hp nominal power), 9-cylinder air-cooled radial engine in front, driving a two-bladed metal propeller (wooden in the prototype). Conventional fixed landing gear, sprung by rubber rope, with a rear skid. Fuel tank 75 L in fuselage front (fuel consumption - 9.5 L/ flight hour).

Specifications (RWD 2) edit

Data from Polish aircraft, 1893-1939[2]

General characteristics

  • Crew: 1
  • Capacity: 1
  • Length: 6.15 m (20 ft 2 in)
  • Wingspan: 9.8 m (32 ft 2 in)
  • Height: 1.9 m (6 ft 3 in)
  • Wing area: 13.6 m2 (146 sq ft)
  • Empty weight: 260 kg (573 lb)
  • Gross weight: 500 kg (1,102 lb)
  • Max takeoff weight: 500 kg (1,102 lb) [citation needed]
  • Fuel capacity: 75 L (20 US gal; 16 imp gal)[citation needed]
  • Powerplant: × Salmson 9Ad 9-cylinder air-cooled radial piston engine, 30 kW (40 hp) (nominal)
  • Propellers: 2-bladed fixed-pitch propeller

Performance

  • Maximum speed: 155 km/h (96 mph, 84 kn) at sea level
  • Cruise speed: 130 km/h (81 mph, 70 kn)
  • Landing speed: 65 km/h (40 mph; 35 kn)
  • Range: 550 km (340 mi, 300 nmi) [citation needed]
  • Service ceiling: 4,000 m (13,000 ft)
  • Rate of climb: 3 m/s (590 ft/min) [citation needed]
  • Wing loading: 36.8 kg/m2 (7.5 lb/sq ft)
  • Power/mass: 0.059 kW/kg (0.036 hp/lb)
  • Take-off run: 120 m (394 ft)[citation needed]
  • Take-off run to 8.5 m (28 ft): 260.5 m (855 ft)[citation needed]
  • Landing run from 8.5 m (28 ft): 219 m (719 ft)[citation needed]

See also edit

Related development

Aircraft of comparable role, configuration, and era

References edit

  1. ^ Flight, August 8, 1930, p.890
  2. ^ Cynk, Jerzy B (1971). Polish aircraft, 1893-1939. Putnam. pp. 487-494. ISBN 0-370-00085-4.

Further reading edit

  • Glass, Andrzej (1977). Polskie konstrukcje lotnicze 1893–1939 (in Polish). Warsaw: WKiŁ. pp. 286–288.

External links edit

 
Wikimedia Commons has media related to RWD 2.
  • Photos and drawings at Ugolok Neba

April 10, 2024
1929, polish, single, engine, high, wing, monoplane, sports, plane, constructed, team, during, challenge, 1930role, sports, planenational, origin, polandmanufacturer, warsaw, university, technology, workshopsdesigner, teamfirst, flight, july, 1929introduction,. The RWD 2 was a 1929 Polish single engine high wing monoplane sports plane constructed by the RWD team RWD 2RWD 2 during the Challenge 1930Role Sports planeNational origin PolandManufacturer Warsaw University of Technology workshopsDesigner RWD teamFirst flight July 1929Introduction 1929Retired 1935Primary user Polish civilian aviationProduced 1929 1930Number built 4 Contents 1 Development 2 Use 3 Description 4 Specifications RWD 2 5 See also 6 References 7 Further reading 8 External linksDevelopment editThe RWD 2 was constructed by the RWD team of Stanislaw Rogalski Stanislaw Wigura and Jerzy Drzewiecki in the Aviation Section of Mechanic Students Club of Warsaw University of Technology It was a development of their first design RWD 1 Its feature was a unique fish shaped fuselage with good aerodynamics but without a direct view forward from the pilot s seat For this reason they were later nicknamed blind mice The first prototype registration SP ACE was completed and flown by the designer Jerzy Drzewiecki in July 1929 Since it appeared successful in sports flying three more RWD 2s were built in 1930 registration SP ADJ ADG ADH Use editIn August September 1929 Franciszek Zwirko and Stanislaw Wigura flew the prototype across Europe on the 5000 km Warsaw Paris Barcelona Warsaw route it was the first long foreign raid of the Polish designed aircraft On 16 October 1929 Zwirko and Antoni Kocjan set an international FAI altitude record of 4 004 m 13 133 ft in the light tourist plane class below 280 kg 616 lb empty weight Three serial aircraft took part in the Challenge 1930 international touring planes competition in July 1930 Stanislaw Plonczynski took the 19th place as the best Pole for 35 qualified and 60 starting crews and Edward Wieckowski took the 21st place the third Jozef Muslewski was disqualified due to time exceeding but he completed the rally off the contest In the Challenge RWD 2s won the trial of lowest fuel consumption 5 2 kg 100 km According to Flight they appear to possess particularly good air sailing qualities 1 RWD 2s were also used in several Polish air competitions and other minor international ones with some success They were also used for training in the Polish Aero Club in Warsaw Poznan and Vilnius They were withdrawn in 1935 one was bought by a private owner and flew for some time longer Description editWooden construction high wing cantilever monoplane conventional in layout Fuselage rectangular in cross section plywood covered Single spar one part wing of a trapezoid shape covered with canvas and plywood in front Cantilever empennage covered with plywood stabilizers and canvas rudder and elevators Crew of two sitting in tandem with dual controls The crew cabs were open on the sides in upper part they had individual doors on the right side Salmson 9Ad 46 hp 40 hp nominal power 9 cylinder air cooled radial engine in front driving a two bladed metal propeller wooden in the prototype Conventional fixed landing gear sprung by rubber rope with a rear skid Fuel tank 75 L in fuselage front fuel consumption 9 5 L flight hour Specifications RWD 2 editData from Polish aircraft 1893 1939 2 General characteristicsCrew 1 Capacity 1 Length 6 15 m 20 ft 2 in Wingspan 9 8 m 32 ft 2 in Height 1 9 m 6 ft 3 in Wing area 13 6 m2 146 sq ft Empty weight 260 kg 573 lb Gross weight 500 kg 1 102 lb Max takeoff weight 500 kg 1 102 lb citation needed Fuel capacity 75 L 20 US gal 16 imp gal citation needed Powerplant Salmson 9Ad 9 cylinder air cooled radial piston engine 30 kW 40 hp nominal Propellers 2 bladed fixed pitch propellerPerformance Maximum speed 155 km h 96 mph 84 kn at sea level Cruise speed 130 km h 81 mph 70 kn Landing speed 65 km h 40 mph 35 kn Range 550 km 340 mi 300 nmi citation needed Service ceiling 4 000 m 13 000 ft Rate of climb 3 m s 590 ft min citation needed Wing loading 36 8 kg m2 7 5 lb sq ft Power mass 0 059 kW kg 0 036 hp lb Take off run 120 m 394 ft citation needed Take off run to 8 5 m 28 ft 260 5 m 855 ft citation needed Landing run from 8 5 m 28 ft 219 m 719 ft citation needed See also editRelated development RWD 1 RWD 3 RWD 4 RWD 7Aircraft of comparable role configuration and era Peyret Mauboussin PM XI Messerschmitt M17References edit Flight August 8 1930 p 890 Cynk Jerzy B 1971 Polish aircraft 1893 1939 Putnam pp 487 494 ISBN 0 370 00085 4 Further reading editGlass Andrzej 1977 Polskie konstrukcje lotnicze 1893 1939 in Polish Warsaw WKiL pp 286 288 External links edit nbsp Wikimedia Commons has media related to RWD 2 Photos and drawings at Ugolok Neba Retrieved from https en wikipedia org w index php title RWD 2 amp oldid 1126745593, wikipedia, wiki, book, books, library,

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