Intended as a successor in Lotnictwo Wojskowe service
to the P.11, the P.50 Jastrzab (Hawk) was designed
under the leadership of Wsiewolod Jakimiuk. The first
of two prototypes, the P.50/I, was flown in February
1939 with an 840hp Bristol Mercury VIII nine-cylinder
radial. Of all-metal stressed-skin monocoque construction,
the P.50 was armed with four wing-mounted
7.92mm Wz 36 machine guns. The Mercury-engined
model was referred to as the Jastrzab A, an initial batch
of 30 of this version being under construction at the
time of the German invasion. The second prototype, the
P. 50/II, was intended to serve as a development aircraft
for the more advanced Jastrzab II. This featured a revised
rear fuselage, armament augmented by two
20mm cannon and pilot armour, the engine being a
1375hp Bristol Hercules to be replaced in the series
model by the 1200hp P.Z.L. Waran radial. The P.50/II
was still awaiting its power plant at the time of the German
assault. The first pre-series Jastrzab A was to be
fitted with an 870hp Gnome-Rhone 14Kirs as a development
aircraft for the Jastrzab B, and this was
almost ready for flight test in September 1939.
|A three-view drawing (1278 x 950)|
| MODEL||Mercury VIII-powered Jastrzab|
| Take-off weight||2500 kg||5512 lb|
| Empty weight||1700 kg||3748 lb|
| Wingspan||9.70 m||32 ft 10 in|
| Length||7.70 m||25 ft 3 in|
| Height||2.70 m||9 ft 10 in|
| Wing area||19.40 m2||208.82 sq ft|
| Max. speed||500 km/h||311 mph|
| Range||750 km||466 miles|
|Roger Worsley, e-mail, 28.11.2012 16:26|
I remember reading somewhere that the prototype of the A version was shot down by Polish AAA gunners, because they thought it was a German aircraft! Is there any truth in this?
|aerofan, e-mail, 22.08.2011 23:43|
Really P-50 /1 can fly only 430-440km /h. 500km /h was a planned speed
|KANTIANIS GEORGE, e-mail, 03.05.2009 22:06|
HOW CAN I FIND UNDER SCALE AND CROSS SECTIONS PLANS FOR PZL 50 JASTRZAB PROTOTYPES II AND III?
|William Luther, e-mail, 21.08.2008 23:22|
This plane resembles an amalgamation of the Bloch 151 and the Seversky P-35.
|mort_faucheur, 19.08.2007 03:30|
The Polish air force may have had a fighting chance had this fighter been in service in Sept. '39. It's reminiscent of the Brewster Buffalo, an American fighter used effectively by the Finns against the Soviet Union, and less so by the U.S.M.C. against the Japanese.
The PZL-50 would've shredded the Dorniers, Heinkels, and Stukas without heavy Bf-109 escort.
|Artur Sudnik, e-mail, 30.06.2007 18:48|
To an owner of this page!.On that page you can take a new view of PZL-50 Jastrzab www.odkrywca.pl /forum_pics /picsforum19 /pzl50_jastrzab_prototyp_1.jpg .I'm an author of this one.Under this adress are all pictures: www.odkrywca.pl /pokaz_watek.php?id=232844
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