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{|{{Infobox Aircraft Begin
{|{{Infobox aircraft begin
| name= S-33 Messenger
| name= S-33 Messenger
| image= File:Sikorsky S-33 Messenger airplane.jpg
| image= File:Sikorsky S-33 Messenger airplane.jpg
| caption=
| caption=
}}{{Infobox Aircraft Type
}}{{Infobox aircraft type
| type=Racer/Utility
| type=Racer/Utility
| national origin=[[United States]]
| national origin=[[United States]]
| manufacturer=Sikorsky
| manufacturer=Sikorsky
| designer=
| designer=
| first flight=
| first flight=1925
| introduced=
| introduced=
| retired=
| retired=
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|}
|}


The '''Sikorsky S-33 Messenger''' was a [[United States|American]] two-seat [[sesqiuplane]] designed and built by the [[Sikorsky Manufacturing Corporation]] in 1925.
The '''Sikorsky S-33 Messenger''' was an American two-seat [[sesqiuplane]] designed and built by the [[Sikorsky Manufacturing Corporation]] in 1925.


The first of two examples built participated in the Sixth Pulitzer Trophy Race at Mitchel Field, Long Island, New York on October 12, 1925 and was piloted by Al Krapish, an employee of Sikorsky.<ref name=aero>{{cite web |url=http://all-aero.com/index.php/contactus/54-planes-p-q-e-r-s/10123-sikorsky-s-33-messenger|title=Sikorsky S-33 Messenger|author=|date=2016|website=all-aero.com|publisher=|access-date=31 July 2016}}</ref>
The first of two examples built participated in the Sixth [[Pulitzer Trophy]] Race at Mitchel Field, Long Island, New York on October 12, 1925 and was piloted by Al Krapish, an employee of Sikorsky.<ref name=aero>{{cite web |url=http://all-aero.com/index.php/contactus/54-planes-p-q-e-r-s/10123-sikorsky-s-33-messenger|title=Sikorsky S-33 Messenger|author=|date=2016|website=all-aero.com|publisher=|access-date=31 July 2016}}</ref>


The first aircraft is reported to have been powered by a [[Wright Gale]] of {{convert|60|hp|abbr=on}} and the second by a [[Lawrance L-3]] of {{convert|60|hp|abbr=on}}. Some sources assert that the aircraft was powered by an Anzani engine, but this is most likely to be a mis identification.{{cn|date=August 2016}} These were essentially the same engine type, post- and pre- acquisition of the [[Lawrance Aero Engine Company]] by the [[Wright Aeronautical Corporation]], respectively.
The first aircraft is reported to have been powered by a [[Wright Gale]] of {{convert|60|hp|abbr=on}} and the second by a [[Lawrance L-3]] of {{convert|60|hp|abbr=on}}. These were essentially the same engine type, post- and pre- acquisition of the [[Lawrance Aero Engine Company]] by the [[Wright Aeronautical Corporation]], respectively. Some sources assert that the aircraft was powered by an [[Anzani]] engine,<ref name="Eckland">{{cite web|last1=Eckland|first1=K.O.|title=Sikorsky|url=http://aerofiles.com/_sik.html|website=Aerofiles|accessdate=4 August 2016}}</ref> but this is most likely to be a mis-identification.{{or-inline|date=January 2022}}


==Specifications (first aircraft)==
==Specifications (first aircraft)==
{{Aircraft specs
{{Aircraft specs
|ref=Aerofiles<ref name="Eckland"/>
|ref=Aerofiles<ref name=files>{{cite web |url=http://aerofiles.com/_sik.html|title=Sikorsky |author=|date=|website=aerofiles.com|publisher=|access-date=31 July 2016}}</ref>
<!-- reference -->
<!-- reference -->
|prime units?=imp<!-- imp or kts first for US aircraft, and UK aircraft pre-metrification,
|prime units?=imp<!-- imp or kts first for US aircraft, and UK aircraft pre-metrification,
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|crew=Two
|crew=Two
|capacity=
|capacity={{convert|500|lb|abbr=on}}
|length m=5.49
|length m=5.49
|length ft=
|length ft=
|length in=
|length in=
|span m=
|upper span m=
|span ft=32
|upper span ft=32
|span in=0
|upper span in=0
|upper span note=
|lower span m=
|lower span ft=20
|lower span in=0
|lower span note=
|height m=
|height m=
|height ft=
|height ft=
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|max speed kmh=
|max speed kmh=
|max speed mph=103
|max speed mph=115
|max speed kts=
|max speed kts=
|max speed mach=<!-- supersonic aircraft -->
|max speed mach=<!-- supersonic aircraft -->
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|cruise speed mph=
|cruise speed mph=
|cruise speed kts=
|cruise speed kts=
|never exceed speed kmh=
|stall speed kmh=
|never exceed speed mph=
|stall speed mph=35
|never exceed speed kts=
|stall speed kts=
|stall speed note=
|range km=640
|range km=640
|range miles=
|range miles=
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|endurance=
|endurance=
|ceiling m=
|ceiling m=
|ceiling ft=15,000
|ceiling ft=15000
|g limits=
|g limits=
|roll rate=
|roll rate=
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{{Sikorsky Aircraft}}
{{Sikorsky Aircraft}}


[[Category:United States civil utility aircraft 1920–1929]]
[[Category:1920s United States civil utility aircraft]]
[[Category:Sikorsky aircraft|S-031]]
[[Category:Sikorsky aircraft|S-031]]
[[Category:Sesquiplanes]]
[[Category:Sesquiplanes]]
[[Category:Single-engined tractor aircraft]]
[[Category:Single-engined tractor aircraft]]
[[Category:Aircraft first flown in 1925]]

{{aero-1920s-stub}}

Latest revision as of 18:55, 4 January 2024

S-33 Messenger
Role Racer/Utility
National origin United States
Manufacturer Sikorsky
First flight 1925
Number built 2

The Sikorsky S-33 Messenger was an American two-seat sesqiuplane designed and built by the Sikorsky Manufacturing Corporation in 1925.

The first of two examples built participated in the Sixth Pulitzer Trophy Race at Mitchel Field, Long Island, New York on October 12, 1925 and was piloted by Al Krapish, an employee of Sikorsky.[1]

The first aircraft is reported to have been powered by a Wright Gale of 60 hp (45 kW) and the second by a Lawrance L-3 of 60 hp (45 kW). These were essentially the same engine type, post- and pre- acquisition of the Lawrance Aero Engine Company by the Wright Aeronautical Corporation, respectively. Some sources assert that the aircraft was powered by an Anzani engine,[2] but this is most likely to be a mis-identification.[original research?]

Specifications (first aircraft)[edit]

Data from Aerofiles[2]

General characteristics

  • Crew: Two
  • Capacity: 500 lb (230 kg)
  • Length: 18 ft 0 in (5.49 m)
  • Upper wingspan: 32 ft 0 in (9.75 m)
  • Lower wingspan: 20 ft 0 in (6.10 m)
  • Wing area: 160.4 sq ft (14.90 m2)
  • Empty weight: 882 lb (400 kg)
  • Gross weight: 1,389 lb (630 kg)
  • Powerplant: 1 × Wright Gale 3-cylinder radial, 60 hp (45 kW)

Performance

  • Maximum speed: 115 mph (185 km/h, 100 kn)
  • Stall speed: 35 mph (56 km/h, 30 kn)
  • Range: 400 mi (640 km, 350 nmi)
  • Service ceiling: 15,000 ft (4,600 m)

References[edit]

  1. ^ "Sikorsky S-33 Messenger". all-aero.com. 2016. Retrieved 31 July 2016.
  2. ^ a b Eckland, K.O. "Sikorsky". Aerofiles. Retrieved 4 August 2016.
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