DH180
Type Liquid-cooled V-four diesel piston aircraft engine
National origin United States
Manufacturer DeltaHawk Engines, Inc.
First run 1997
Major applications Cirrus SR20

The DH180 is V-4 piston diesel aircraft engine developed for aircraft applications by DeltaHawk of Racine, Wisconsin. The engine was type certified 0n April 7, 2023.[1]

Design

The design is a four-cylinder, two-stroke, piston diesel engine, in an inverted-V configuration, with turbocharging and supercharging, mechanical fuel injection, liquid cooling, direct drive. It can run on Jet-A or sustainable aviation fuel. The manufacturer claims that it has "40 percent fewer moving parts than other engines in its category."[1][2]

Development

In 2014, a DH180 was installed and demonstrated at the EAA Airventure airshow on a Cirrus SR20. A retrofit kit is planned for the SR20.[3]

The engine received its type certificate from the Federal Aviation Administration on April 7, 2023, with first customer deliveries planned for 2024.[1][2][4]

The US National Aeronautics and Space Administration selected the engine for their Subsonic Single Aft Engine Aircraft scale flight test vehicle.[4]

Variants

DHK180
Certified version, 180 hp (134 kW)[1][2][4]

Applications

Specifications (DHK180)

Data from TCDS,[1] AVweb[2] and manufacturer[6]

General characteristics

  • Type: Four-cylinder, two-stroke, liquid-cooled, piston, diesel aircraft engine
  • Bore: 4 in (10 cm)
  • Stroke: 4 in (10 cm)
  • Displacement: 202 cu in (3 L)
  • Length: 33 in (84 cm)
  • Width: 24 in (61 cm)
  • Height: 22 in (56 cm)
  • Dry weight: 357 lb (161.9 kg)

Components

  • Supercharger: twin screw
  • Turbocharger: yes
  • Fuel system: mechanical injection, mechanical gear pump, one injection pump per cylinder
  • Fuel type: certifies for Jet-A, Jet A-1, SAF; will also burn JP5, JP8, D1, D2, JP-8-100, F-24,
  • Oil system: dry sump, external mechanical gear pump
  • Cooling system: liquid

Performance

  • Power output: 180 hp (134 kW) at 2600 rpm, five minutes maximum for take-off; 135 hp (101 kW) at 2200 rpm, continuous
  • Compression ratio: 20.1:1
  • Fuel consumption: 7.3 gal/hr (27.6 L/hr)at 135 HP Economy Cruise, 10.8 gal/hr (40.9 L/hr) at 180 hp
  • Specific fuel consumption: 0.054 US gal/hp/h (0.27 L/kW/h)
  • Power-to-weight ratio: 0.50 hp/lb

See also

References

  1. 1 2 3 4 5 Federal Aviation Administration (April 7, 2023). "Type Certificate Data Sheet No. E00022CH". Archived from the original on July 25, 2023. Retrieved July 25, 2023.
  2. 1 2 3 4 O'Connor, Kate (May 18, 2023). "DeltaHawk DHK180 Receives FAA Certification". AVweb. Archived from the original on May 19, 2023. Retrieved May 19, 2023.
  3. ↑ Jim Moore (March 2015). "Diesels on the cusp". AOPA Pilot: 87.
  4. 1 2 3 "Jet-Fueled Piston Engine Certified". Canadian Aviator. May 27, 2023. Archived from the original on May 27, 2023. Retrieved May 27, 2023.
  5. ↑ Cook, Marc (August 7, 2023). "Bearhawk Makes DeltaHawk An Option". AVweb. Archived from the original on August 8, 2023. Retrieved August 8, 2023.
  6. ↑ DeltaHawk. "Engines". deltahawk.com. Archived from the original on May 21, 2023. Retrieved May 15, 2023.
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