{{Short description|Type of aircraft}} {{Infobox aircraft | name = S-2 | logo = | logo_size = | image = File:Sikorsky S-2 aircraft spring 1910.jpg | alt = | caption = Igor Sikorsky at the controls of the S-2 near Kiev, Russian Empire in June 1910 | long_caption = | other_names = | aircraft_type = Experimental | aim = | outcome = | related = | national_origin = Russian Empire | manufacturer = | design_group = | designer = Igor Sikorsky | builder = | issuer = | status = Destroyed during testing | owners = | primary_user = | more_users = | service = | major_applications = | proposals = | prototypes = | number_built = 1 | construction_number = | civil_registration = | military_serial = | radio_code = | requirement = | aircraft_carried = | flights = | total_hours = | total_distance = | construction_date = | introduction = | retired = | first_flight = 3 June 1910 | initiated = | in_service = | last_flight = | expected = | developed_from = Sikorsky S-1 | variants = | developed_into = Sikorsky S-3 | preservation = | fate = | predecessors = | successors = | concluded = }}

The '''Sikorsky S-2''' was the second fixed-wing aircraft designed by Igor Sikorsky using the main wing section from the S-1 and a {{convert|25|hp|kW|0|abbr=on|order=flip}} Anzani 3 three-cylinder engine in a tractor configuration. During the first flight attempt on June 3, 1910, the biplane reached a height of two to four feet and traveled approximately {{convert|200|yd|m|sigfig=1|order=flip|abbr=on}}. After several successful flights, the S-2 was destroyed on June 30 when Sikorsky inadvertently stalled the underpowered aircraft at an altitude of {{convert|70|ft|m|-1|order=flip|abbr=on}}.<ref name=winged>{{cite book |last=Sikorsky |first=Igor|title=The Story of the Winged-S|year=1944|publisher=Dodd, Mead & Company|location=New York|isbn=9781258163556|page=41}}</ref>

==Specifications== {{Aircraft specs |ref=''Russian Aviation Museum''<ref name=ram>{{cite web|url=http://ram-home.com/ram-old/index.html|title=BIS No.2|date=4 September 1997|website=ram-home.com|access-date=2 April 2017}}</ref>

<!-- reference --> |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 --> <!-- General characteristics --> |genhide=

|crew=One |capacity= |length m=8 |length ft= |length in= |upper span m=8 |upper span ft= |upper span in= |upper span note= |lower span m= |lower span ft= |lower span in= |lower span note= |height m= |height ft= |height in= |wing area sqm=24 |wing area sqft= |wing area note= |aspect ratio= |airfoil= |empty weight kg=190 |empty weight lb= |empty weight note= |gross weight kg=260 |gross weight lb= |gross weight note= |fuel capacity= |more general= <!-- Powerplant --> |eng1 number=1 |eng1 name=Anzani 3 |eng1 type=-cylinder air-cooled fan piston engine |eng1 kw= |eng1 hp=25

|prop blade number= |prop name= |prop dia m= |prop dia ft= |prop dia in= |prop note= <!-- Performance --> |perfhide=

|max speed kmh= |max speed mph= |max speed kts= |cruise speed kmh= |cruise speed mph= |cruise speed kts= |stall speed kmh= |stall speed mph= |stall speed kts= |stall speed note= |range km= |range miles= |range nmi= |combat range km= |combat range miles= |combat range nmi= |endurance= |ceiling m= |ceiling ft= |g limits= |roll rate= |climb rate ms= |climb rate ftmin= |lift to drag= |wing loading kg/m2= |wing loading lb/sqft= |wing loading note=max load |more performance= |avionics= }}

==See also== {{aircontent <!-- include as many lines are appropriate. additional lines/entries with carriage return. --> |see also= |related=<!-- related developments --> * Sikorsky S-1 * Sikorsky S-3 }}

==References== {{reflist}}

{{Sikorsky Aircraft}}

S-2 Category:Biplanes Category:Single-engined tractor aircraft Category:Aircraft first flown in 1910