Curtiss AT-4 Hawk

Curtiss P-1D Hawk
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Název:
Name: 		Curtiss AT-4 Hawk Curtiss AT-4 Hawk
Originální název:
Original Name: 		Curtiss AT-4 Hawk
Kategorie:
Category: 		cvičný letoun trainer aeroplane
Výrobce:
Producer:		 DD.MM.1927-DD.MM.1929 Curtiss Aeroplane & Motor Co., Buffalo, New York
Období výroby:
Production Period: 		DD.MM.1927-DD.MM.1927 AT-4
DD.MM.1929-DD.MM.1929 P-1D
Vyrobeno kusů:
Number of Produced: 		36
První vzlet:
Maiden Flight: 		DD.MM.1926 XAT-4
Osádka:
Crew: 		1
Základní charakteristika:
Basic Characteristics:		 
Vzlet a přistání:
Take-off and Landing: 		CTOL - konvenční vzlet a přistání CTOL - conventional take-off and landing
Uspořádání křídla:
Arrangement of Wing: 		dvouplošník biplane
Uspořádání letounu:
Aircraft Concept: 		klasické conventional
Podvozek:
Undercarriage:		 pevný fixed
Přistávací zařízení:
Landing Gear:		 kola wheels
Technické údaje:
Technical Data: 		 
Hmotnost prázdného letounu:
Empty Weight: 		838 kg 1847 lb
Vzletová hmotnost:
Take-off Weight: 		1127 1) kg 24841) lb
Maximální vzletová hmotnost:
Maximum Take-off Weight: 		? kg ? lb
Rozpětí:
Wingspan: 		9.63 m 31ft 7in
Délka:
Length: 		7.09 2) m 23ft 3in2)
Výška:
Height: 		2.59 m 8ft 6in
Plocha křídla:
Wing Area: 		23.41 m2 252 ft2
Plošné zatížení:
Wing Loading: 		? kg/m2 ? lb/ft2
Pohon:
Propulsion:		 
Kategorie:
Category:		 pístový piston
Počet motorů:
Number of Engines:		 1
Typ:
Type:		 AT-4: Wright V-720 o výkonu 134 kW
P-1D: Curtiss V-1150-3 o výkonu 324 kW
dvoulistá vrtule		 AT-4: Wright V-720, power 180 hp
P-1D: Curtiss V-1150-3, power 435 hp
two-blade propeller
Objem palivových nádrží:
Fuel Tank Capacity: 		? ?
Výkony:
Performance: 		 
Maximální rychlost:
Maximum Speed: 		202.8 3) km/h v 0 m 1263) mph in 0 ft
Cestovní rychlost:
Cruise Speed: 		172.2 km/h v ? m 107 mph in ? ft
Rychlost stoupání:
Climb Rate: 		4.8 m/s 950 ft/min
Čas výstupu na výšku:
Time to Climb to: 		? min do ? m ? min to ? ft
Operační dostup:
Service Ceiling: 		? m ? ft
Dolet:
Range: 		861 km 535 mi
Maximální dolet:
Maximum Range: 		? km ? mi
Výzbroj:
Armament: 		P-1D: 1x 7,62mm kulomet Browning P-1D: 1x .30 Browning machine gun
Uživatelské státy:
User States:
Poznámka:
Note: 		P-1D:
1) 1338 kg
2) 6,96 m
3) 251 km/h
 P-1D:
1) 2950 lb
2) 22ft 10in
3) 156 mph
Zdroje:
Sources: 		Bowers, P. M. Curtiss Aircraft 1907-1947, Putnam Aeronautical Books, London 1979. ISBN 0-370-10029-8.
Bowers, P. M. Curtiss Army Hawks, Aircraft in Profile No.45. Profile Publications, Leatherhead 1965.
United States Army and Air Force Fighters 1916-1961, Harleyford Publications, Letchworth 1961.
Fahey, James C. U.S. Army Aircraft 1908-1946. Ships and Aircraft, Falls Church, 1964.
Bowers, P. M. Forgotten Fighters/2 and Experimental Aircraft U.S. Army 1918-1941, Arco Publishing Company, New York 1971. ISBN 0-66802-403-8.
http://home.att.net/~jbaugher1/p1.html
www.nationalmuseum.af.mil
http://www.aerofiles.com/_curt.html

Curtiss AT-4 Hawk - P-1D - přestavěný AT-4

P-1D - přestavěný AT-4
URL : https://www.valka.cz/Curtiss-AT-4-Hawk-t84510#310703 Version : 0
In 1924, the us army decided on the basis of some of their main fighter types to create a follow-on trainer by placing the engine on the lower performance. The first prototype of the Curtiss created from P-1A 26-296, which was due to the fact warehoused in the factory, to the installation of the engine the Wright-Hispano E (the new designation of In-720), from the prvoválečných inventory. Visually the main difference accounted for barely half the cooler, which featured just slightly below the hull. The army was finished the machine passed in July 1926 under the designation XAT-4.

In October 1926, it was ordered 40 serial machines (27-88/97 and 27-213/242), the first of which arrived for training units on the Kelly Field in may 1927. As the origin of the fighter machines should but the AT-4 unnecessarily robust construction, which also was a great weight for such a weak engine and a very weak performance, and were even considered dangerous for inexperienced pilots. After a short service was 35 AT-4 again converted to the installation of engines D-12 to the forms of the matching pursuit P-1B, and were also armed with one machine gun. After the reconstruction have been renamed to P-1D, despite the stíhacímu designation but continue to serve on the Kelly Field in Texas as an advanced practice.

The last five machines from the original čtyřicetikusové order has not been completed as AT-4, but as AT-5 with the engines of the Wright J-5..
Curtiss AT-4 Hawk -


URL : https://www.valka.cz/Curtiss-AT-4-Hawk-t84510#423906 Version : 0
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