The Schweizer 330 and S333 are turbine-powered developments of the Schweizer 300 light piston-powered helicopter. As of 2007, only the Schweizer 333 remains in production.[1] In February 2009, the 333 was rebranded as the Sikorsky S-333.[2] In 2018 the Schweizer R.S.G. bought the Schweizer Aircraft from Sikorsky Aircraft and it was rebranded as Schweizer S333 again.[3]
In 1987, Schweizer announced development of the Schweizer 330 using the dynamic components, rotors, controls and systems of the 300C; however, it was redesigned with an all-new fuselage.[4] The first 330, converted from a 300C and powered by an Allison 250-C10A, flew on June 14, 1988. The FAA certified the aircraft in September 1992.
The improved 330SP was introduced in May 1997 and featured an improved rotor and raised skids, which could be retrofitted to previous 330 models. An Allison (later Rolls-Royce) 250-C20W turboshaft was derated to 165 kW (220 hp), giving the 330SP excellent hot and high performance, maintaining power output to 18,000 feet.[citation needed]
Schweizer 333edit
Schweizer 333
Shortly after the release of the 330, Schweizer began work on upgrading the dynamic components of the Schweizer 330SP. Over two years later, Schweizer released a new variant, the Schweizer 333. Featuring the newly developed dynamic systems components and new-technology rotor blades with a cambered airfoil and a larger diameter rotor, the upgraded helicopter benefited from a greater max gross weight, more useful load, more speed and more hover performance; nearly a 30% increase in performance over the 330SP. Schweizer created a kit to upgrade Model 330 and 330SP aircraft.[5]
In February 2008, an improved version of the series, the S-434 was released.[6][7]
Designedit
The 330 used the 300C's dynamic components, a Rolls-Royce 250 turboshaft engine, and a new four-seat cockpit/cabin and body and new instrumentation.
Operational historyedit
Schweizer was purchased on August 26, 2004, by Sikorsky Aircraft. The Schweizer 300/333 models fill a gap in the Sikorsky helicopter line, which is known for its medium and heavy utility and cargo helicopters. Sikorsky has since taken advantage of Schweizer's rapid prototyping technology, originally used during development of the 333 dynamic components and the RQ-8 prototype, to develop the X-2 Technology Demonstrator.[8]
Variantsedit
A RQ-8A Fire Scout helicopter preparing to land on the USS Nashville
330
Using the 300C dynamic components, Schweizer mounted a Rolls-Royce 250-C10A engine to the airframe and developed a new four-seat cockpit/cabin and body.
330SP
improved rotor and raised skids, Rolls-Royce 250-C20W engine.
333
Featuring new dynamic system components, new rotor blades, and high skids as standard equipment, the 333 has a 30% greater useful load than the 330SP.
RQ-8/MQ-8 Fire Scout
The Northrop Grumman MQ-8B Fire Scout is an unmanned derivative of the Schweizer 330SP/333 helicopter, with a new fuselage, new fuel system, and UAV electronics and sensors. It also utilizes a new four-bladed rotor system based on that of the Schweizer 333. The Fire Scout is currently in development for the United States Navy's VTUAV program with cooperation from Northrop Grumman. The original RQ-8A was based on the 330SP.
^. www.aviationtoday.com. Archived from the original on 2007-03-25.
^Rotorcraft Report: New Schweizer Model? The Turbine 434 2008-12-01 at the Wayback Machine
^"Escuela de Helicópteros". aeroflight.co.uk. Retrieved 15 February 2013.
^"Dominican Republic Schweizer-333". Demand media. Retrieved 17 February 2013.
^Philippe Chapleau (29 November 2015). "DynCorp signe pour cinq nouvelles années de soutien au profit de l'Alat saoudienne" (in French). Ouest-France. Retrieved 2 December 2015.
^. http://www.scramble.nl. 2015. Archived from the original on 25 September 2017. Retrieved 2 November 2015. {{cite news}}: External link in |agency= (help)
^(PDF), archived from the original (PDF) on 2007-07-26
^Lednicer, David. "The Incomplete Guide to Airfoil Usage". m-selig.ae.illinois.edu. Retrieved 16 April 2019.
External linksedit
Wikimedia Commons has media related to Schweizer 330/333.
schweizer, s333, schweizer, s333, turbine, powered, developments, schweizer, light, piston, powered, helicopter, 2007, only, schweizer, remains, production, february, 2009, rebranded, sikorsky, 2018, schweizer, bought, schweizer, aircraft, from, sikorsky, airc. The Schweizer 330 and S333 are turbine powered developments of the Schweizer 300 light piston powered helicopter As of 2007 only the Schweizer 333 remains in production 1 In February 2009 the 333 was rebranded as the Sikorsky S 333 2 In 2018 the Schweizer R S G bought the Schweizer Aircraft from Sikorsky Aircraft and it was rebranded as Schweizer S333 again 3 Schweizer 330 S333Schweizer 333 on the apronRole Light utility and trainer helicopterManufacturer Schweizer Aircraft CorporationSikorsky AircraftFirst flight June 14 1988Introduction 1992Status Active In productionPrimary users Dominican Air ForceRoyal Saudi Land ForcesProduced 1988 presentDeveloped from Schweizer S300Developed into MQ 8 Fire ScoutSikorsky S 434 Contents 1 Development 1 1 Schweizer 330 1 2 Schweizer 333 2 Design 3 Operational history 4 Variants 5 Operators 6 Specifications 333 7 See also 8 References 9 External linksDevelopment editSchweizer 330 edit In 1987 Schweizer announced development of the Schweizer 330 using the dynamic components rotors controls and systems of the 300C however it was redesigned with an all new fuselage 4 The first 330 converted from a 300C and powered by an Allison 250 C10A flew on June 14 1988 The FAA certified the aircraft in September 1992 The improved 330SP was introduced in May 1997 and featured an improved rotor and raised skids which could be retrofitted to previous 330 models An Allison later Rolls Royce 250 C20W turboshaft was derated to 165 kW 220 hp giving the 330SP excellent hot and high performance maintaining power output to 18 000 feet citation needed Schweizer 333 edit nbsp Schweizer 333Shortly after the release of the 330 Schweizer began work on upgrading the dynamic components of the Schweizer 330SP Over two years later Schweizer released a new variant the Schweizer 333 Featuring the newly developed dynamic systems components and new technology rotor blades with a cambered airfoil and a larger diameter rotor the upgraded helicopter benefited from a greater max gross weight more useful load more speed and more hover performance nearly a 30 increase in performance over the 330SP Schweizer created a kit to upgrade Model 330 and 330SP aircraft 5 In February 2008 an improved version of the series the S 434 was released 6 7 Design editThe 330 used the 300C s dynamic components a Rolls Royce 250 turboshaft engine and a new four seat cockpit cabin and body and new instrumentation Operational history editSchweizer was purchased on August 26 2004 by Sikorsky Aircraft The Schweizer 300 333 models fill a gap in the Sikorsky helicopter line which is known for its medium and heavy utility and cargo helicopters Sikorsky has since taken advantage of Schweizer s rapid prototyping technology originally used during development of the 333 dynamic components and the RQ 8 prototype to develop the X 2 Technology Demonstrator 8 Variants edit nbsp A RQ 8A Fire Scout helicopter preparing to land on the USS Nashville330 Using the 300C dynamic components Schweizer mounted a Rolls Royce 250 C10A engine to the airframe and developed a new four seat cockpit cabin and body 330SP improved rotor and raised skids Rolls Royce 250 C20W engine 333 Featuring new dynamic system components new rotor blades and high skids as standard equipment the 333 has a 30 greater useful load than the 330SP RQ 8 MQ 8 Fire Scout The Northrop Grumman MQ 8B Fire Scout is an unmanned derivative of the Schweizer 330SP 333 helicopter with a new fuselage new fuel system and UAV electronics and sensors It also utilizes a new four bladed rotor system based on that of the Schweizer 333 The Fire Scout is currently in development for the United States Navy s VTUAV program with cooperation from Northrop Grumman The original RQ 8A was based on the 330SP Sikorsky S 434 Based on improvements developed for the MQ 8B this is a new version of the 333 having a four bladed main rotor 9 Operators edit nbsp Dominican RepublicDominican Air Force 10 11 nbsp Saudi ArabiaSaudi Arabian Army 12 13 Specifications 333 editData from International Directory of Civil Aircraft 4 and Technical specifications 14 General characteristicsCrew 1 2 Capacity 1 3 pax Length 31 ft 2 in 9 50 m overall Height 11 ft 0 in 3 35 m Empty weight 1 210 lb 549 kg Gross weight 2 460 lb 1 116 kg Max takeoff weight 2 550 lb 1 157 kg Powerplant 1 Rolls Royce M250 C20W turboshaft engine 235 shp 175 kW Main rotor diameter 27 ft 6 in 8 38 m Main rotor area 594 sq ft 55 2 m2 Blade section NACA 0015 modified 15 Performance Cruise speed 105 kn 121 mph 194 km h Range 319 nmi 367 mi 591 km Rate of climb 1 380 ft min 7 0 m s See also edit nbsp Aviation portalRelated development Northrop Grumman MQ 8 Fire Scout Schweizer S300 Sikorsky S 434Aircraft of comparable role configuration and era Enstrom 480 Robinson R44References edit Schweizer Aircraft 333 page Archived 2007 05 31 at the Wayback Machine Sikorsky Press Release February 23 2009 Archived from the original on July 25 2011 Retrieved February 25 2009 HOME Schweizer Schweizerrsg com Retrieved 2022 05 02 a b Frawley Gerard The International Directiory of Civil Aircraft 2003 2004 page 190 Aerospace Publications Pty Ltd 2003 ISBN 1 875671 58 7 Flug Revue article on the 333 Archived 2007 06 15 at the Wayback Machine Sikorsky announces launch of Schweizer S 434 Commercial Helicopter at Heli Expo Heli Expo 2008 Sikorsky launches Schweizer 434 Rotor amp Wing Magazine Big Plans www aviationtoday com Archived from the original on 2007 03 25 Rotorcraft Report New Schweizer Model The Turbine 434 Archived 2008 12 01 at the Wayback Machine Escuela de Helicopteros aeroflight co uk Retrieved 15 February 2013 Dominican Republic Schweizer 333 Demand media Retrieved 17 February 2013 Philippe Chapleau 29 November 2015 DynCorp signe pour cinq nouvelles annees de soutien au profit de l Alat saoudienne in French Ouest France Retrieved 2 December 2015 Royal Saudi Land Forces http www scramble nl 2015 Archived from the original on 25 September 2017 Retrieved 2 November 2015 a href Template Cite news html title Template Cite news cite news a External link in code class cs1 code agency code help Technical Data Summary Model 333 PDF archived from the original PDF on 2007 07 26 Lednicer David The Incomplete Guide to Airfoil Usage m selig ae illinois edu Retrieved 16 April 2019 External links edit nbsp Wikimedia Commons has media related to Schweizer 330 333 Schweizer 333 page on SACusa com FAA Type Certificate 4H12 Archived 2017 01 25 at the Wayback Machine Retrieved from https en wikipedia org w index php title Schweizer S333 amp oldid 1156663731, wikipedia, wiki, book, books, library,
