Sling Aircraft Sling HW

Last updated

Sling HW
Sling Aircraft Sling HW (7-29-2023).jpg
Role Homebuilt aircraft
National originSouth Africa
Manufacturer Sling Aircraft
First flightDecember 2020
Developed from Sling Aircraft Sling TSi

The Sling HW is a South African four-seat, single-engine, high-wing homebuilt aircraft sold in kit form by Sling Aircraft of Johannesburg South. [1]

Contents

It was developed from the Sling Aircraft Sling TSi and is the first high-wing model developed by Sling Aircraft. [2]

The company is inconsistent in the aircraft's nomenclature and the official website variously refers to it as the Sling 4 HW, Sling HW and the Sling 4 High Wing. [1]

Design and development

The development of the Sling HW was announced at EAA AirVenture Oshkosh in 2019. [2] [3]

The aircraft was developed between 2019 and 2020. The Sling HW is a cantilever high-wing, fixed tricycle gear or conventional landing gear homebuilt aircraft. Construction is predominantly pop riveted aluminium and fibreglass, with the center of the fuselage made from carbon fiber. The main landing gear legs are made from 100 layers of fibreglass. The airplane is equipped with a turbocharged Rotax 915 iS powerplant of 141 hp (105 kW). [1] [4] [5]

Sling Aircraft founder and chief designer Mike Blythe explained that the model started with a request from an older, less physically agile and heavier-weight customer who told Blythe, "if you build a high-wing airplane that will be easier to get in and out of, I’ll buy it!" The development of a high-wing model also followed customer demand to provide better ground visibility and back country capability, compared to low-wing aircraft. The aircraft was designed for a large cabin and ease-of-entry. The Sling High Wing has much parts commonality with the Sling TSi, including the cantilever wing design, with the major difference in the center section to accommodate the high-wing design. [4] [5]

Cabin width is 46 in (117 cm). [5]

The first flight of the prototype was in December 2020. [6]

Operational history

In a 2022 review, AVweb writer Paul Dye wrote, "Speed performance was right on the predictions from the factory. The Rotax 915 iS motor goes into ECO (economy) mode when you pull the power back to 80%, and at this power setting, we consistently saw 135–136 KTAS on the EFIS. This was about 10 knots slower than the low-wing TSi with the same engine at the same power setting, but it’s about as expected due to a larger frontal area and the heavier weight of the prototype. It will be interesting to see if the lighter production models will go faster, but at any rate, if you’re thinking of comparisons, I doubt you’ll find a standard-engine Cessna 172 that will cruise anywhere near that, and certainly not on 7.7 gph." [5]

Three Sling HWs were flown from the factory in Johannesburg, South Africa, to Oshkosh, Wisconsin for AirVenture 2022. One was the factory prototype to be displayed at the airshow, while the others were ferry flight deliveries for American customers. The route flown was north along African west coast and across to the Cape Verde Islands, then across the Atlantic Ocean to Barbados, the Bahamas, Florida and over land to Oshkosh. [7]

Specifications (2021 model Sling HW)

Data from manufacturer [1]

General characteristics

Performance

See also

Similar aircraft

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References

  1. 1 2 3 4 Sling Aircraft. "Sling HW Official Website". slingaircraft.com. Archived from the original on 4 April 2022. Retrieved 26 August 2022.
  2. 1 2 Dan Johnson. "Oshkosh 2019… All Done! More Great Light-Sport Aircraft Stories (and Video)". bydanjohnson.com. Retrieved 10 January 2021.
  3. ↑ African Pilot. "Sling launches its high wing at airventure" . Retrieved 9 January 2021– via PressReader.
  4. 1 2 Pilot's Post. "Sling's High Wing, another success in the making". pilotspost.com. Retrieved 10 January 2021.
  5. 1 2 3 4 Dye, Paul (21 July 2022). "Sling High Wing". AVweb. Archived from the original on 22 July 2022. Retrieved 22 July 2022.
  6. ↑ "Sling HW First Flight video by the manufacturer Sling Aircraft". www.youtube.com. Retrieved 9 January 2021.
  7. ↑ Wilson, Tom (28 July 2022). "AirVenture Spotlight: Sling It!". AVweb. Archived from the original on 29 July 2022. Retrieved 29 July 2022.
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