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Engine Conversions

Diesel Aircraft

Converting the 172 Skyhawk

Break free from Avgas and switch to readily available Jet-A Fuel

Conduct your flight training in a Skyhawk 172 retrofitted with a Continental Diesel Engine and significantly reduce your operating costs. With over 60 retrofits to date, The Africair/TAD Group specializes in converting the Avgas powered 172 Skyhawk to the  Jet-A burning Continental Diesel engine.

Benefits of the Continental Diesel Engine Conversion
Less fuel consumption, significantly reducing operational costs.
Jet-A is readily available most anywhere in the world unlike costly and scarce Avgas.
Continental Diesel engines have logged over 3 million flight hours.
The 155hp CD-155 & 135hp CD-135 engines are turbocharged.
At high elevation airfields, the Continental Diesel engines outperform 160hp Avgas engines.
Continental Motors CD-135 Engine

Jet Fuel Piston Engine with 135 HP

Continental Motors Group offers with CD-135 a jet fuel piston engine for general aviation with a take off power of 99 kW (135 hp). The CD-135 is a turbo charged 4-cylinder in-line engine which is EASA certified since August 2006 and FAA certified since October 2006.

The CD-135 is certified for the use of both jet fuel and diesel (DIN EN590) and is running with the two fuels in any mixture ratio. The engine has a time between replacement (TBR) of 1,500 hrs.

  • Engine Work Principle: Turbo Diesel Engine
  • Cylinder, Configuration: 4, In-Line
  • Valve Gear: DOHC
  • Intake System: Common Rail Direct Injection
  • Cooling: Liquid Cooled
  • Oil System: Wet Sump Oil System
  • Electrical System: Full Authority Digital Engine Control (FADEC)
  • Prop Drive: Reduction Gearbox with Integrated Clutch (Ratio i=1:1.69)
  • Approved Propeller: 3-Blade Propeller of MT with Hydraulic Variable Pitch (MTV-6 Series)
  • Displacement: 1.991 cu cm (121.5 cu in)
  • Bore: 83 mm (3.26 in)
  • Stroke: 92 mm (3.62 in)
  • Compression: 18:1
  • Dimensions (WxLxH): 778 x 816 x 636 mm (30.63 x 32.12 x 25.04 in)
  • Weight (Complete & Dry): 134 kg (295.4 lbs)
  • Max Power up to 6,000 ft: 99 kW (135 hp)
  • Max Continuous Power: 99 kW (135 hp)
  • Power Best Economy: 71 kW (97 hp)
  • Recommended Load: 75 Percent
  • Power Constant: Available Max Power at Respective Altitude
  • Torque at Propeller: 410 Nm (302 ft lb)
  • Torque at Propeller (Best Economy): 340 Nm (250 ft lb)
  • Prop RPM Max and Take Off: 2300 rpm
  • Prop RPM Best Economy: 2000 rpm
  • Prop RPM Over-Speed Tested: 2660 rpm
  • Engine RPM Max and Take Off: 3890 rpm
  • Engine RPM Best Economy: 3380 rpm
  • Engine RPM Over-Speed Tested: 4500 rpm
  • Consumption in Cruise Flight: 15-20 l/h (4-5.3 gal/hr)
  • Specific Fuel Consumption: 214 g/kWh (0.35 lb/hphr)
  • Electrical System: FADEC
  • Voltage: 28 V, Optional 14 V
  • Alternator Performance: 1680 W (28 V), Optional 1260 W (14 V)
  • Current / Voltage: 60 A (28 V), Optional 90 A (14 V)
  • Compact Engine Display: 0.3 kg
  • Certified Fuels: Diesel (EN 590), Jet A, Jet A-1
  • Usable Fuels (UAV): Diesel (EN 590), Jet A, Jet A-1, JP-5, DEF STAN 91-86, JP-8, DEF STAND 91-91, JP-8+100, Chinese Jet Fuel No 3
  • Oil: Shell Helix Ultra 5W30, Shell Helix Ultra 5W40, AeroShell Oil Diesel 10W-40, AeroShell Oil Diesel Ultra
  • Cooling Liquid: 50% Water, 50% BASF Glysantin, G48/Glysantin, Protect Plus
  • Gear Oil: Shell EP 75W90 API GL-4
  • Lifetime: 1500 hrs
  • Type Certification: EASA, FAA, in 60 Countries
  • Supplemental Type Certification: DA40, DA42, C172, PA28, DR400
Continental Motors CD-135 Engine

Jet Fuel Piston Engine with 135 HP

Continental Motors Group offers with CD-155 a jet fuel piston engine for general aviation with a take off power of 114 kW (155 hp). The CD-155 is a turbo charged 4-cylinder in-line engine which is EASA and. The CD-155 is certified for the use of both jet fuel and diesel (DIN EN590) and is running with the two fuels in any mixture ratio.

The engine has a time between replacement (TBR) of 1,200 hr. Despite of improved performance CD-155 weighs as much as the CD-135.

  • Engine Work Principle: Turbo Diesel Engine
  • Cylinder, Configuration: 4, In-Line
  • Valve Gear: DOHC
  • Intake System: Common Rail Direct Injection
  • Cooling: Liquid Cooled
  • Oil System: Wet Sump Oil System
  • Electrical System: Full Authority Digital Engine Control (FADEC)
  • Prop Drive: Reduction Gearbox with Integrated Clutch (Ratio i=1:1.69)
  • Approved Propeller: 3-Blade Propeller of MT with Hydraulic Variable Pitch (MTV-6 Series)
  • Displacement: 1.991 cu cm (121.5 cu in)
  • Bore: 83 mm (3.26 in)
  • Stroke: 92 mm (3.62 in)
  • Compression: 18:1
  • Dimensions (WxLxH): 778 x 816 x 636 mm (30.63 x 32.12 x 25.04 in)
  • Weight (Complete & Dry): 134 kg (295.4 lbs)
  • Max Power up to 6,000 ft: 114 kW (155 hp)
  • Max Continuous Power: 114 kW (155 hp)
  • Power Best Economy: 97 kW (132 hp)
  • Recommended Load: 75 Percent
  • Power Constant: Available Max Power at Respective Altitude
  • Torque at Propeller: 473 Nm (349 ft lb)
  • Torque at Propeller (Best Economy): 410 Nm (302 ft lb)
  • Prop RPM Max and Take Off: 2300 rpm
  • Prop RPM Best Economy: 2000 rpm
  • Prop RPM Over-Speed Tested: 2000 rpm
  • Engine RPM Max and Take Off: 3890 rpm
  • Engine RPM Best Economy: 3380 rpm
  • Engine RPM Over-Speed Tested: 4500 rpm
  • Consumption in Cruise Flight: 18-22 l/h (4.7-5.8 gal/hr)
  • Specific Fuel Consumption: 220 g/kWh (0.36 lb/hphr)
  • Electrical System: FADEC
  • Voltage: 28 V, Optional 14 V
  • Alternator Performance: 1680 W (28 V), Optional 1260 W (14 V)
  • Current / Voltage: 60 A (28 V), Optional 90 A (14 V)
  • Compact Engine Display: 0.3 kg (0.66 lbs)
  • Certified Fuels: Diesel (EN 590), Jet A, Jet A-1
  • Usable Fuels (UAV): Diesel (EN 590), Jet A, Jet A-1, JP-5, DEF STAN 91-86, JP-8, DEF STAND 91-91, JP-8+100, Chinese Jet Fuel No 3
  • Oil: Shell Helix Ultra 5W30, Shell Helix Ultra 5W40, AeroShell Oil Diesel 10W-40, AeroShell Oil Diesel Ultra
  • Cooling Liquid: 50% Water, 50% BASF Glysantin, G48/Glysantin, Protect Plus
  • Gear Oil: Shell EP 75W90 API GL-4
  • Lifetime: 1200 hrs
  • Type Certification: EASA, FAA, in 57 Countries
  • Supplemental Type Certification: Cessna 172, Diamond DA40, Robin DR400, Piper PA-28
The Africair/TAD Group Diesel Engine Conversions

Our History & Overview

Continental Diesel is, in every respect, the industry leading brand for certified diesel or Jet A-1 powered piston aircraft engines in general aviation.  Continent Diesel has the longest production history, the largest fleet of engines in operation, the most diesel flight hours fleet wide, and the largest service network for diesel aircraft engines around the globe.

The Continental Diesel engines are certified in accordance with the requirements of the FAA, EASA and 60 additional countries. They are technically advanced diesel engines which can operate on auto-diesel (DIN 590) and especially with the standard aviation kerosene fuel (Jet Fuel, Jet-A). Continental Diesel engines can be installed both as a retrofit and for factory new aircraft and offer the following benefits:

As far back as 2001, the manufacturer of Continental Diesel engines, formerly known as Thielert Aircraft Engines and now Technify Motors GmbH as member of the Continental Motors Group, became the first company in the world to receive type certification for its kerosene (Jet Fuel, Jet-A) piston aircraft engines. Continental Diesel pilots have a global network of more than 350 authorized service centers at their disposal. Altogether, there are over 3,500 Diesel engines operated in General Aviation which have successfully completed more than 3.5 million flight hours.

The Africair/TAD Group – A Look Into Our History of Diesel Engine Conversions and Support

For over a decade, the Africair Group of Companies, including Africair, Inc. (the Cessna distributor for most of Africa), Tropical Aviation Distributors (the Cessna distributor for the Caribbean and parts

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