Pipistrel Sinus

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Pipistrel Sinus
Pipistrel Sinus at Festival Aereo de Vigo 2010 (4806892945).jpg
RoleUltralight Aircraft
National originSlovenia
Manufacturer Pipistrel
First flightOctober 16, 1996 (1996-10-16)
Produced1995–present
Number built1000 (Sinus and Virus family total, March 2019) [1]
Developed into Pipistrel Virus

The Pipistrel Sinus is a two-seat, single-engine ultralight motor glider, developed and manufactured by Pipistrel in Slovenia and Italy. [2] [3] Its design has served as the base for future Pipistrel developments such as the Virus and Alpha Trainer.

Contents

Introduced in 1995, the Sinus has been produced in a number of variants with different engines and undercarriage configurations. It has good STOL characteristics and it can be equipped with a full airframe emergency recovery parachute system.

Development

Taildragger configuration Pipistrel Sinus.jpg
Taildragger configuration

The development of the Sinus began in November 1994 in close collaboration with the Slovenian firm Albastar Ltd. [4] The wing and fuselage were designed by the Italian aerodynamicist Franco Orlando. In April 1995, the Sinus was unveiled at AERO Friedrichshafen, the main European general aviation trade show. The first flight of the prototype took place on October 16, 1996. [5]

The Sinus has served as the base for the design of future Pipistrel models such as the Virus, which shares the same fuselage and tail, but sports a shorter wing. Both models are usually marketed together as a family of aircraft. The Pipistrel Taurus two-seat motorglider uses the same 15 m (49 ft) wing as the Sinus.

In 2013, Pipistrel started offering the Sinus Flex model, which is a standard Sinus with two interchangeable wingtip sets. The outer section of the wing can be replaced by a shorter part consisting of the winglet of the Virus model, converting the aircraft from motor glider to sport cruiser in minutes. The manufacturer states that the shorter wingtips turn the Sinus into the short-winged, faster-cruising, and easier-to-store Virus model, [6] although there are some slight differences between the two models other than the wings. [7] The Flex wings can be retrofitted to any other Sinus model.

By April 2003, Pipistrel had already produced 100 aircraft of the Sinus/Virus family. This number reached 1000 units by March 2019. [5] [1]

Design

The Sinus is a two-seat, ultra-light, high-wing, cantilever monoplane. It is primarily built from composite materials and is capable of soaring. The variable-pitch propeller (Pipistrel VARIO) can be feathered in order to diminish the air resistance in non-powered flight. [8]

The Pipistrel Sinus comes with either nose-wheel or taildragger landing gear. Engine models available are the Rotax 503, 582 and 912.

Operational history

In 2001, Philippe Zen and Thomas Knowles flew a Sinus at the World Air Games in Spain and won first place in the two-seat category. [9]

In 2004, Matevž Lenarčič flew a modified Sinus around the world in 79 days, setting several world records. [10]

In May, 2019, Aarohi Pandit became the first woman to fly across the Atlantic Ocean in an ultralight aircraft, in a Sinus 912 named "Mahi." [11] In August, 2019, she also became the first woman to fly across the Pacific Ocean in a light sport aircraft. [12]

Variants

Pipistrel Sinus 912 PipistrelSinus912.jpg
Pipistrel Sinus 912
Sinus 447
Rotax 447 powered variant for the Slovenian market.
Sinus 503
Rotax 503 powered variant with a variable-pitch folding propeller.
Sinus 582
As the 503 but fitted with a Rotax 582.
Sinus 912
Rotax 912 powered variant in either UL, LSA or experimental version. [8] [13]
Sinus FLEX
Sinus 912 variant with interchangeable shorter wingtips. [6]

Specifications (Sinus 912)

Data from Manufacturer [14]

General characteristics

Performance

See also

Related development

Aircraft of comparable role, configuration, and era

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References

  1. 1 2 "#3, 2, 1… 1000!". Pipistrel Aircraft. 21 March 2019. Retrieved 6 May 2020.
  2. ↑ Vandermeullen, Richard: 2012 Kit Aircraft Buyer's Guide, Kitplanes, Volume 28, Number 12, December 2011, page 63. Belvoir Publications. ISSN 0891-1851
  3. ↑ Purdy, Don: AeroCrafter - Homebuilt Aircraft Sourcebook, page 312. BAI Communications, July 1998. ISBN   0-9636409-4-1
  4. ↑ Albastar Ltd (2012). "Development project of the last decade". Archived from the original on 13 February 2012. Retrieved 3 March 2015.
  5. 1 2 "Pipistrel History". Pipistrel Aircraft. Retrieved 6 April 2020.
  6. 1 2 Pew, Glenn (5 September 2015). "Pipistrel Offers Flex Wing". Avweb. Retrieved 9 September 2015.
  7. ↑ Bergqvist, Pia (6 September 2013). "Pipistrel's Sinus Flex Offers Two Airplanes in One". Flyer Magazine. Retrieved 6 May 2020.
  8. 1 2 Bayerl, Robby; Martin Berkemeier; et al: World Directory of Leisure Aviation 2011-12, page 136. WDLA UK, Lancaster UK, 2011. ISSN 1368-485X
  9. ↑ "The Pipistrel Company and it's[sic] History". Pipistrel USA. Retrieved 20 May 2019.
  10. ↑ "Matevž Lenarčič flew around the world and set a world record!". Pipistrel Aircraft. Retrieved 4 April 2020.
  11. ↑ "'Riding on a white bird with long wings': Woman flies ultralight aircraft across Atlantic". CBC News. 20 May 2019. Retrieved 20 May 2019.
  12. ↑ "Mumbai girl Aarohi Pandit becomes first woman to fly solo across Atlantic and Pacific Ocean". India Today. 23 August 2019. Retrieved 7 May 2020.
  13. ↑ "Pipistrel Aircraft Price Configurator". Pipistrel Aircraft. Retrieved 7 May 2020.
  14. ↑ "Pipistrel Sinus/Virus Technical Characteristics". Pipistrel Aircraft. Retrieved 6 April 2020.
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