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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