Letov Š-4

Letov Š-HS-1
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Název:
Name: 		Letov Š-4 Letov Š-4
Originální název:
Original Name: 		Letov Š-4
Kategorie:
Category: 		stíhací letoun fighter aeroplane
Výrobce:
Producer:		 DD.MM.1922-DD.MM.1922 Hlavní letecké dílny, Kbely /
Období výroby:
Production Period: 		DD.MM.1922-DD.MM.1922
Vyrobeno kusů:
Number of Produced: 		20
První vzlet:
Maiden Flight: 		DD.MM.1922
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: 		jednoplošník monoplane
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: 		673 kg 1484 lb
Vzletová hmotnost:
Take-off Weight: 		983 kg 2167 lb
Maximální vzletová hmotnost:
Maximum Take-off Weight: 		? kg ? lb
Rozpětí:
Wingspan: 		8,00 m 26ft 2,95in
Délka:
Length: 		6,58 m 21ft 7,06in
Výška:
Height: 		2,62 m 8ft 7,15in
Plocha křídla:
Wing Area: 		16,43 m2 176.85 ft2
Plošné zatížení:
Wing Loading: 		59,8 kg/m2 12.25 lb/ft2
Pohon:
Propulsion:		 
Kategorie:
Category:		 pístový piston
Počet motorů:
Number of Engines:		 1
Typ:
Type:		 Hispano Suiza 8Ba o výkonu 162 kW/220 k
dvoulistá dřevěná vrtule		 Hispano Suiza 8Ba, power 217 hp
two-blade wooden propeller
Objem palivových nádrží:
Fuel Tank Capacity: 		? ?
Výkony:
Performance: 		 
Maximální rychlost:
Maximum Speed: 		230 km/h v ? m 142.9 mph in ? ft
Cestovní rychlost:
Cruise Speed: 		190 km/h v ? m 118.1 mph in ? ft
Rychlost stoupání:
Climb Rate: 		? m/s ? ft/min
Čas výstupu na výšku:
Time to Climb to: 		21,9 min do 5000 m 21,9 min to 16404 ft
Operační dostup:
Service Ceiling: 		5500 m 18045 ft
Dolet:
Range: 		500 km 310.7 mi
Maximální dolet:
Maximum Range: 		? km ? mi
Výzbroj:
Armament: 		2x pevný 7,7mm kulomet Vickers vz.09, 250 nábojů každý 2x fixed .303 Vickers vz.09 machine gun, 250 rpg
Uživatelské státy:
User States:
Poznámka:
Note: 		- -
Zdroje:
Sources: 		Němeček, V. Československá letadla 1918-1945, Naše Vojsko, Praha 1983.
Fidler, J. Sluka, V. Encyklopedie branné moci Republiky československé 1920-38, Libri 2006. ISBN 80-7277-256-2.
URL : https://www.valka.cz/Letov-S-4-t8366#23864 Version : 0
Letov Š-4 was built as a single-seat biplane fighter at the same time with jednoplošným fighter aircraft Letov Š-3. The fuselage of this aircraft was equipped with a metal lattice ground and the ground of the tail surfaces while dvouplošné wing with a fairly thick profile and a small thickness was wooden construction. As the drive unit was chosen proven radial engine Hispano-Suiza 8Ba (hence the initial designation of the Letov Š-HS-4). Aircraft armament consisted of a pair of fixed synchronized machine guns Vickers caliber 7.65 mm. The aircraft was built and fly in 1922 and shortly thereafter was subjected to military trials the representatives of the MNO. After the end of the tests recommended airplane to admission to the air force of Czechoslovakia. After the introduction of serial aircraft in the armament of the czechoslovak air force planes were criticized for the frequent overheating of the engine and a strong labilnost management. Therefore, they were soon withdrawn gradually from the departments and after the reconstruction in the parent plant (during the reconstruction of the aircraft were given weaker engines Hispano-Suiza 8Aa and the newly designed tail surfaces) have been assigned to the aviation school in Cheb as a training machine.

Sources:

In.Němeček:Czechoslovak aircraft 1

Archives of the author.
URL : https://www.valka.cz/Letov-S-4-t8366#180121 Version : 0
Training two-seat variant of the fighter aircraft Letov Š-4 formed in 1923.The aircraft does not carry weapons and is to compensate for the other member of the crew lightened by reducing the fuel supplies about 60 kg.
Aircraft Letov Š-4a was made 15 pieces and all flying in the aviation school in Cheb until 1930.

Sources:

In.Němeček:Czechoslovak aircraft 1

Archives of the author.
URL : https://www.valka.cz/Letov-S-4-t8366#180126 Version : 0
Training adjustment, W-4a, of course, remained single, he's changed, "just" the engine, the radiator and also the tail surfaces. The attached screenshot is the prototype of the W-4 and the bow of the serial machines.

http://www.airwar.ru/enc/fww1/letovs4.html
http://vinar.cz/mitte/[/resources].

Letov Š-4 -


Letov Š-4 -


URL : https://www.valka.cz/Letov-S-4-t8366#433422 Version : 0
Letov Š-4a.
Letov Š-4 -


URL : https://www.valka.cz/Letov-S-4-t8366#27382 Version : 0
Practice W-4a.

http://www.airwar.ru/enc/fww1/letovs4.html
.
Letov Š-4 -


URL : https://www.valka.cz/Letov-S-4-t8366#433423 Version : 0
http://www.aviastar.org/air/czech/letov_s-4.php
.
Letov Š-4 -


URL : https://www.valka.cz/Letov-S-4-t8366#433652 Version : 0
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