RWD Projects

[hesham]

Hi,

RWD-12 was single engined high-wing recce/observation aircraft,
never completed.
RWD-18 was twin-engined high-wing touring and ambulance aircraft,
also never completed.
RWD-22 was twin-engined mid-wing torpedo float plane project.
RWD-24 was landplane version of RWD-22,intended as twin-engined
light bomber,project only.
RWD-25 was single seat lightweight fighter project.
RWD-26 was single engined low-wing trainer aircraft,post WW2 project.

http://commons.wikimedia.org/wiki/File:RWD-25_(fighter).JPG

 

[redstar72]

Hi Hesham!

RWD-12 was proposed in 1933 as a replacement to Lublin R-XIII, but with the same 220-hp Wright engine it wasn't much better. Therefore it was rejected by Polish AF. Then RWD team proposed a new, more advanced and powerful project - RWD-14 Czapla (Heron) which later came into series.

RWD-18 and RWD-25 prototypes were under construction when the Nazis invaded Poland in September 1939. If the war didn't begin, RWD-18 could be flown in December 1939 and RWD-25 fighter in middle 1940.

RWD-22 floatplane was also planned to fly in 1940; Marynarka Wojenna (the Polish navy) planned to order 12 aircraft of this type. The land version, RWD-24, had also more powerful engines - two 700-hp Gnome-Rhone 14M Mars radials, while RWD-22 was powered by 430/470-hp PZL G-1620 bis Mors B or 400-hp P&W Wasp Junior 8B. RWD-24 was a counterpart for a light bomber projected by PWS.

Technical data for RWD-18 (calculated):
Wing span - about 13 m
Length - about 9.5 m
Wing area - about 20 m2
Empty weight - 970 kg
Takeoff weight - 1500 kg
Powerplant - two Cirrus Major 4-cylinder engines, 138/150 hp each
Crew - 5 (2 pilots, 3 passengers)
Maximum speed - 270 km/h
Cruise speed - 230 km/h
Landing speed - 80 km/h
Vertical speed - 4.5 m/s
Service ceiling - 4500 m
Flight range - 600 km

Technical data for RWD-22 (calculated):
Wing span - 18.0 m
Length - 13.8 m
Wing area - 40.0 m2
Empty weight - 2600 kg
Takeoff weight - 4300 kg (4620 kg with torpedo)
Powerplant - two PZL G-1620 bis 7-cylinder radials, 430/470 hp each
Crew - 3
Maximum speed - 290 km/h
Cruise speed - 250 km/h (at 1500 m altitude)
Landing speed - 93 km/h
Vertical speed - 4.8 m/s
Service ceiling - 5500 m
Flight range - 1100 km (max. 2530 km)
Armament - two 7.9-mm machine guns, bombs (24x 12.5 kg or 4x 100 kg) or torpedo (1x 750 kg)

Technical data for RWD-25 (calculated):
Wing span - 10.5 m
Length - 7.0 m
Wing area - 14.0 m2
Empty weight - 1350 kg
Takeoff weight - 1800 kg
Powerplant - one Gnome-Rhone 14M-05 14-cylinder double radial, 660/730 hp
Crew - 1
Maximum speed - 460 km/h
Vertical speed - 10 m/s
Service ceiling - 8000 m
Flight range - 450 km (max. 750 km)
Armament - four wing-mounted 7.9-mm machine guns

(Source: A. Glass. Polskie konstrukcje lotnicze 1893-1939 (Polish aircraft designs 1893-1939). - Warszawa, 1976. - P. 318, 326-327, 330-333)

 

[AM]

Hi all,

all RWD constructions:
http://rwd-dwl.net/

 

[hesham]

Hi,

also the RWD-22 in final version.

 

[hesham]

Hi,


here is the RWD-18 artist drawing and 3-view.


http://www.samolotypolskie.pl/samoloty/2585/126/RWD-182

 

[VictorXL188]

Here's a picture of an RWD-8DWL aircraft with a radial engine showing the basic outline of what the RWD-12, a development of that type, may have looked like, apart from the longer fuselage and larger wing area for the later design. Source http://www.samolotypolskie.pl/samoloty/2576/126/RWD-123

 

[hesham]

Maybe early drawing to RWD-6.

http://rwd-dwl.net/pracownicy/drzewiecki/http://rwd-dwl.net/samoloty/czajka/index.htm

 

[KarlSack]

In my ongoing research into my father's company Long Sault Woodcraft, where they made radomes for the DEW Line and Pinetree lines in Canada, I found out that George (Jerzy) Drzewiecki worked at NRC in Ottawa Canada with my father and was also a frequent visitor at Long Sault on radome matters.

See attached article from The Ottawa Citizen (May 17, 1990) mentioning some of his achievements. The 2nd attached file is a screenshot of a memoir written by George Escher (who was an Engineer at Long Sault) with first hand account of Jerzy's accident.

The British government made him a Member of the Order of the British Empire for his service as n Allied ferry pilot.


Enjoy!

 

[hesham]

Welcome aboard Karl,

and do you have a drawings to RWD-26 ?.

 

[KarlSack]

Welcome aboard Karl,

and do you have a drawings to RWD-26 ?.

Sadly I do not. Sorry.

 

[Kazik.R]

RWD-16 "OSA"

 

[hesham]

Hi,

The DK fighter aircraft design was developed by Jerzy Drzewiecki for an airframe design competition announced in October 1924 by Department IV of Air Navigation. The results were announced on November 16, 1925. The design received fifth place overall, third prize, and second place in the two-seat fighter category. The aircraft was distinguished by its attractive exterior.

http://www.samolotypolskie.pl/samoloty/883/126/DK

 

[hesham]

competition announced in October 1924

What was this competition and which were the contenders ?.