PZL.3: Difference between revisions
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{|{{Infobox aircraft begin |
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{{Unreferenced|date=December 2011}} |
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| name = PZL.3 |
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{|{{Infobox Aircraft Begin |
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| image = Potez 41 photo L'Aerophile February 1934.jpg |
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|name=PZL.3 |
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| caption = Potez 41 |
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|image=Image:PZL-3.jpg |
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}}{{Infobox aircraft type |
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|caption=PZL.3 |
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| type = Bomber |
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}}{{Infobox Aircraft Type |
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| manufacturer = [[Państwowe Zakłady Lotnicze]] |
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|type=Bomber |
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| designer = [[Władysław Zalewski]]<ref name="Cynk">{{cite book|last=Cynk|first=Jerzy B.|title=Polish Aircraft 1893-1939|publisher=Putnam & Company Ltd.|location=London|year=1971|isbn=0-370-00085-4|url-access=registration|url=https://archive.org/details/polishaircraft1800cynk}}</ref> |
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|manufacturer=[[PZL]] |
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| first flight = |
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|designer= Władysław Zalewski |
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| introduced = |
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|first flight= |
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| retired = |
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|introduced= |
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| status = project |
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|retired= |
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| primary user = |
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|status= project |
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| more users = |
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|primary user= [[Polish Air Force]] |
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| produced = |
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|more users= |
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| number built = |
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|produced= |
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| unit cost = |
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|number built= |
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| variants with their own articles = |
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|unit cost= |
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|variants with their own articles= |
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}} |
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The ''' |
The '''PZL.3''' was a Polish project for a four-engine [[heavy bomber]], designed by [[Władysław Zalewski]] from 1928 to 1930 at [[Państwowe Zakłady Lotnicze|PZL]] (''Państwowe Zakłady Lotnicze'' - National Aviation Establishments).<ref name="Cynk"/> |
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==Design and development== |
==Design and development== |
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At the time of the formation of PZL the [[Department of Aeronautics]] gave the nascent design office the task of designing a heavy bomber. Drawing heavily on his 1924 [[WZ-IX Pteranodon]] bomber, Zalewski was given the task as designer. During the winter of 1928-29 the detailed design of the PZL.3 bomber took shape, emerging as a large aircraft powered by four {{convert|500|hp|abbr=on}} [[Bristol Jupiter]] engines mounted in tandem in nacelles on pylons above the wings. Due to the dire economic situation at the start of the 1930s and the expected high costs, funds for construction of a prototype were not forthcoming so the project was dropped.<ref name="Cynk"/> |
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The project of '''PZL.3''' was made due todemend of [[Polish Air Force]] for the new bomber plane. Zalewskis' design development of [[WZ-IX Pteranodon]] bomber. Ine the first version aircraft should have two pushing and two pulling engines. Later this concept was rejected as a result of technical problems. Although the positive analysis of the design, the project was dismissed due to too high costs in 1930. Some assumptiona od this project was later used in [[PZL.37 Łoś]]. In 1933 the twin-simillar [[Potez 41 BN4]]. construction was made. |
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The PZL.3 would have been a low-wing cantilever monoplane with four engines in push-pull tandem nacelles over the wings mounted on pylons. Built with a semi-monocoque stressed skin fuselage skinned with [[Duralumin]] skinning and structural parts, the PZL.3 would have had twin fins and a trousered fixed tail-wheel undercarriage. Armament would have included 3 machine-guns and up to {{convert|3,000|kg|abbr=on}} of bombs.<ref name="Cynk"/> |
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==Technical design== |
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Four engine, low-wing aircraft with double vertical tail. Propulsion should be four [[Bristol]] "Jupiter" engines (520 hp each one). The project has characteristic, modern, duralumin craft. The plane should be relativety heavily armed (3 machine guns)and could carry 3000 kg of bombs. |
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After the PZL.3 was rejected Zalewski left PZL and refused to work on Government sponsored projects thereafter.<ref name="Cynk"/> |
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==Operational history== |
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The bomber never got beyond the phase of the project. |
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This was also produced in France as the '''Potez 41'''. |
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==Variants== |
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<!-- ==Operational history== --> |
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;PZL.3 |
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<!-- ==Variants== --> |
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:four-engine bomber, project. |
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==Operators== |
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'''{{POL}}''' |
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[[Polish Air Force]] |
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==Specifications== |
==Specifications== |
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{{ |
{{Aircraft specs |
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|ref=Polish Aircraft 1893-1939<ref name="Cynk"/><!-- for giving the reference for the data --> |
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{{aircraft specifications |
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|prime units?=met<!-- imp or kts first for US aircraft, and UK aircraft pre-metrification, met(ric) first for all others. You MUST choose a format, or no specifications will show --> |
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General characteristics |
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|crew=6 |
|crew=5 or 6 |
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|capacity= |
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|length main=22 m |
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|length |
|length m=22 |
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|length ft= |
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|span main=36 m |
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|length in= |
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|length note= |
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|height main=8.4 m |
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|span m=36 |
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|span ft= |
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|area main=170 m² |
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|span in= |
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|span note= |
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|empty weight main=4,500 kg |
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|upper span m= |
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|upper span ft= |
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|loaded weight main=7,500 kg |
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|upper span in= |
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|max takeoff weight main= |
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|lower span m= |
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|lower span ft= |
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|lower span in= |
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|lower span note= |
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|swept m=<!-- swing-wings --> |
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|swept ft=<!-- swing-wings --> |
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|swept in=<!-- swing-wings --> |
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|swept note= |
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|dia m=<!-- airships etc --> |
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|dia ft=<!-- airships etc --> |
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|dia in=<!-- airships etc --> |
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|width m=<!-- if applicable --> |
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|width ft=<!-- if applicable --> |
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|width in=<!-- if applicable --> |
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|height in= |
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|height note= |
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|wing area sqm= |
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|wing area sqft= |
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|wing area note= |
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|swept area sqm=<!-- swing-wings --> |
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|swept area sqft=<!-- swing-wings --> |
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|swept area note= |
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|volume m3=<!-- lighter-than-air --> |
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|volume ft3=<!-- lighter-than-air --> |
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|volume note= |
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|aspect ratio=<!-- give where relevant eg sailplanes --> |
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|airfoil= |
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|empty weight kg=7,500 |
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|empty weight lb= |
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|empty weight note= |
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|gross weight kg=12,500 |
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|gross weight lb= |
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|gross weight note= |
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|max takeoff weight kg= |
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|max takeoff weight lb= |
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|max takeoff weight note= |
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|fuel capacity= |
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|lift kg=<!-- lighter-than-air --> |
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|lift lb=<!-- lighter-than-air --> |
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|lift note= |
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|more general= |
|more general= |
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<!-- |
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|engine (prop)=[[Bristol Jupiter]] |
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Powerplant |
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|type of prop=[[radial engine]]s |
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--> |
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|number of props=4 |
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|eng1 number=4 |
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|power main=383 kW |
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|eng1 name=[[Bristol Jupiter]] |
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|power alt=520 hp |
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|eng1 type=9-cyl. Air-cooled radial engines |
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|max speed main=280 km/h |
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|eng1 kw=373<!-- prop engines --> |
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|max speed alt= |
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|eng1 hp=<!-- prop engines --> |
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|combat radius main= |
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|eng1 kn=<!-- jet/rocket engines --> |
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|combat radius alt= |
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|eng1 lbf=<!-- jet/rocket engines --> |
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|ceiling main= |
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|eng1 kn-ab=<!-- afterburners --> |
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|ceiling alt= |
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|eng1 lbf-ab=<!-- afterburners --> |
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|climb rate main= |
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|eng2 number= |
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|climb rate alt= |
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|eng2 name= |
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|eng2 type= |
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|eng2 kw=<!-- prop engines --> |
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|power/mass main= |
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|eng2 hp=<!-- prop engines --> |
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|power/mass alt= |
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|eng2 kn=<!-- jet/rocket engines --> |
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|eng2 lbf=<!-- jet/rocket engines --> |
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|eng2 note= |
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|eng2 kn-ab=<!-- afterburners --> |
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|eng2 lbf-ab=<!-- afterburners --> |
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|eng3 number= |
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|eng3 name= |
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|eng3 type= |
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|eng3 kw=<!-- prop engines --> |
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|eng3 hp=<!-- prop engines --> |
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|eng3 kn=<!-- jet/rocket engines --> |
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|eng3 lbf=<!-- jet/rocket engines --> |
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|eng3 note= |
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|eng3 kn-ab=<!-- afterburners --> |
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|eng3 lbf-ab=<!-- afterburners --> |
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|more power= |
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|prop blade number=<!-- propeller aircraft --> |
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|prop name= |
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|prop dia m=<!-- propeller aircraft --> |
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|prop dia ft=<!-- propeller aircraft --> |
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|prop dia in=<!-- propeller aircraft --> |
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|prop note= |
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|rot number=<!-- helicopters --> |
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|rot dia m=<!-- helicopters --> |
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|rot dia ft=<!-- helicopters --> |
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|rot dia in=<!-- helicopters --> |
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|rot area sqm=<!-- helicopters --> |
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|rot area sqft=<!-- helicopters --> |
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|rot area note= |
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<!-- |
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Performance |
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--> |
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|perfhide= |
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|max speed kmh=280 |
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|max speed mph= |
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|max speed kts= |
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|max speed note= at sea level |
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|max speed mach=<!-- supersonic aircraft --> |
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|cruise speed kmh= |
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|cruise speed mph= |
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|cruise speed kts= |
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|cruise speed note= |
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|stall speed kmh=<!-- aerobatic --> |
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|stall speed mph=<!-- aerobatic --> |
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|stall speed kts= |
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|stall speed note= |
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|never exceed speed kmh= |
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|never exceed speed mph= |
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|never exceed speed kts= |
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|never exceed speed note= |
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|minimum control speed kmh= |
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|minimum control speed mph= |
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|minimum control speed kts= |
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|minimum control speed note= |
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|range km= |
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|range miles= |
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|range nmi= |
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|range note= |
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|combat range km= |
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|combat range miles= |
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|combat range nmi= |
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|combat range note= |
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|ferry range km= |
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|ferry range miles= |
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|ferry range nmi= |
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|ferry range note= |
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|endurance=<!-- if range unknown --> |
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|ceiling m= |
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|ceiling ft= |
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|ceiling note= |
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|g limits=<!-- aerobatic --> |
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|roll rate=<!-- aerobatic --> |
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|glide ratio=<!-- sailplanes --> |
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|climb rate ms= |
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|climb rate ftmin= |
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|climb rate note= |
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|time to altitude= |
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|sink rate ms=<!-- sailplanes --> |
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|sink rate ftmin=<!-- sailplanes --> |
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|sink rate note= |
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|lift to drag= |
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|wing loading kg/m2=73.6 |
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|wing loading lb/sqft= |
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|wing loading note= |
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|disk loading kg/m2= |
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|disk loading lb/sqft= |
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|disk loading note= |
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|power/mass=0.16 hp/kg |
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|thrust/weight= |
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|more performance= |
|more performance= |
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<!-- |
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|armament= |
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Armament |
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*3 x [[machine gun]]: 1 in the nose, 2 in the rear upper station |
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--> |
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*Up to 3,500 kg of bombs |
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|guns= 3x manually aimed machine-guns in nose, dorsal and ventral positions.. |
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|bombs= up to 3,000kg of bombs |
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|rockets= |
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|missiles= |
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|hardpoints= |
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|hardpoint capacity= |
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|hardpoint rockets= |
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|hardpoint missiles= |
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|hardpoint bombs= |
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|hardpoint other= |
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|other armament= |
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|avionics= |
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}} |
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| Line 97: | Line 238: | ||
*[[Bloch MB.200]] |
*[[Bloch MB.200]] |
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*[[Dornier Do 19]] |
*[[Dornier Do 19]] |
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|lists= |
|lists= |
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}} |
}} |
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== References == |
== References == |
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{{commons category|PZL.3}} |
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{{Reflist}} |
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{{PZL aircraft}} |
{{PZL aircraft}} |
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{{aviation lists}} |
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[[Category:1920s Polish bomber aircraft]] |
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[[pl:PZL.3]] |
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[[Category:PZL aircraft]] |
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Latest revision as of 07:52, 9 August 2023
| PZL.3 | |
|---|---|
| |
| Potez 41 | |
| Role | Bomber |
| Manufacturer | Państwowe Zakłady Lotnicze |
| Designer | Władysław Zalewski[1] |
| Status | project |
The PZL.3 was a Polish project for a four-engine heavy bomber, designed by Władysław Zalewski from 1928 to 1930 at PZL (Państwowe Zakłady Lotnicze - National Aviation Establishments).[1]
Design and development[edit]
At the time of the formation of PZL the Department of Aeronautics gave the nascent design office the task of designing a heavy bomber. Drawing heavily on his 1924 WZ-IX Pteranodon bomber, Zalewski was given the task as designer. During the winter of 1928-29 the detailed design of the PZL.3 bomber took shape, emerging as a large aircraft powered by four 500 hp (370 kW) Bristol Jupiter engines mounted in tandem in nacelles on pylons above the wings. Due to the dire economic situation at the start of the 1930s and the expected high costs, funds for construction of a prototype were not forthcoming so the project was dropped.[1]
The PZL.3 would have been a low-wing cantilever monoplane with four engines in push-pull tandem nacelles over the wings mounted on pylons. Built with a semi-monocoque stressed skin fuselage skinned with Duralumin skinning and structural parts, the PZL.3 would have had twin fins and a trousered fixed tail-wheel undercarriage. Armament would have included 3 machine-guns and up to 3,000 kg (6,600 lb) of bombs.[1]
After the PZL.3 was rejected Zalewski left PZL and refused to work on Government sponsored projects thereafter.[1]
This was also produced in France as the Potez 41.
Specifications[edit]
Data from Polish Aircraft 1893-1939[1]
General characteristics
- Crew: 5 or 6
- Length: 22 m (72 ft 2 in)
- Wingspan: 36 m (118 ft 1 in)
- Empty weight: 7,500 kg (16,535 lb)
- Gross weight: 12,500 kg (27,558 lb)
- Powerplant: 4 × Bristol Jupiter 9-cyl. Air-cooled radial engines, 373 kW (500 hp) each
Performance
- Maximum speed: 280 km/h (170 mph, 150 kn) at sea level
- Wing loading: 73.6 kg/m2 (15.1 lb/sq ft)
- Power/mass: 0.16 hp/kg
Armament
- Guns: 3x manually aimed machine-guns in nose, dorsal and ventral positions..
- Bombs: up to 3,000kg of bombs
See also[edit]
Aircraft of comparable role, configuration, and era
References[edit]
Wikimedia Commons has media related to PZL.3.
- ^ a b c d e f Cynk, Jerzy B. (1971). Polish Aircraft 1893-1939. London: Putnam & Company Ltd. ISBN 0-370-00085-4.