JET-A DIESELS - NOW A MATURE TECHNOLOGY
SA Flyer Magazine|August 2022
As Avgas prices head for R40/ litre the need for an alternative to Avgas powered planes becomes ever more pressing. The good news is that, for the past 16 years, Jet-A diesel piston engine technology has been quietly maturing. It has now become a well-developed aero engine that is a serious contender to compete in the piston market.
JET-A DIESELS - NOW A MATURE TECHNOLOGY

FLIGHT REVIEW: CONTINENTAL CD-100 JET-A DIESEL CESSNA 172

MOST C172S ARE POWERED by the clunky and antiquated Avgas burning Lycoming 0-320, or the even older six-cylinder Continental 0-300. The question this flight test asks is whether the Jet-A burning 155hp Continental CD-100 powered Cessna 172 is a real alternative.

Mogas Power?

The threat to Avgas supplies has been around for twenty years. A major step towards freeing the General Aviation industry from Avgas happened in 2006 when an enlightened SACAA allowed South African flight schools to train on non-type certified aircraft. However, Mogas is prone to vaporisation and many piston singles, particularly low-winged types, proved unsuitable for a Mogas STC.

Despite a much hoped for revolution in training aircraft and a reduction in costs as schools embraced Mogas-burning trainers such as the Sling 2, (which will run on car petrol; so-called Mogas), there has also been a huge shift back to legacy Cessna C172s. The demand has been so great that nowadays you can hardly find a clapped-out 60-year-old C172 for less than R1 million.

At the time SA Flyer noted that; "Non-ACSA airfields, managed by property speculators rather than intrinsic service providers, have shown little enthusiasm in encouraging aviation by installing Mogas pumping facilities. However, the provision for supplying Jet A1, the motive fuel upon which our entire global transport infrastructure exists is an entirely different matter. Big jets mean big hangars and big maintenance facilities and big volumes of fuel = big profits.

With problems with both the availability and quality of Mogas, running a piston engine on Jet A1 is a logical alternative, but it was a solution which was surprisingly slow to develop.

This story is from the August 2022 edition of SA Flyer Magazine.

Start your 7-day Magzter GOLD free trial to access thousands of curated premium stories, and 9,000+ magazines and newspapers.

This story is from the August 2022 edition of SA Flyer Magazine.

Start your 7-day Magzter GOLD free trial to access thousands of curated premium stories, and 9,000+ magazines and newspapers.

MORE STORIES FROM SA FLYER MAGAZINEView All
LIVING THE DREAM Part 2: Planning and Pax
SA Flyer Magazine

LIVING THE DREAM Part 2: Planning and Pax

Part 2: Planning and Pax

time-read
5 mins  |
January 2025
QUEEN AIR TALES
SA Flyer Magazine

QUEEN AIR TALES

In the early seventies Esquire Airways acquired a pre-owned Beechcraft Queen Air. This top of the range 8,800 lb MAUW model had nine forward facing commuter seats and I flew it as a single pilot operation for several months.

time-read
10 mins  |
January 2025
HELICOPTER PILOTS SHOULD UNIONISE
SA Flyer Magazine

HELICOPTER PILOTS SHOULD UNIONISE

Helicopter pilots are stuck in a 12-month flying cycle. While they will have periods of rest and active rest (performing ground-based tasks and planning ventures) within their work source campaigns, it's not a good situation. They need programmed periods to catch their breath.

time-read
2 mins  |
January 2025
AFTERMATH of the Engine Fire
SA Flyer Magazine

AFTERMATH of the Engine Fire

Iris McCallum continues her stories about her early years with Air Kenya. This month she tells us about the immediate aftermath of her dramatic engine fire and crash, and her subsequent 'getting back onto the saddle'.

time-read
4 mins  |
January 2025
LARGEST EVER RHINO RELOCATION
SA Flyer Magazine

LARGEST EVER RHINO RELOCATION

Specialist air cargo operator ACS mobilised all its skills to successfully complete a very challenging project – the translocation of 39 White Rhino from Namibia to the USA.

time-read
1 min  |
January 2025
NOVEMBER 2024
SA Flyer Magazine

NOVEMBER 2024

November sees strong growth in aircraft registrations with 16 additions, but 10 aircraft are cancelled as exported. The Type Certified additions are a mixed bag.

time-read
4 mins  |
January 2025
TWINCO FUEL
SA Flyer Magazine

TWINCO FUEL

AIRCRAFT ACCIDENT REPORT

time-read
6 mins  |
January 2025
RON WHEELDON'S HUNTERS
SA Flyer Magazine

RON WHEELDON'S HUNTERS

RON WHEELDON is a Johannesburg based trademark and IP attorney. He writes, \"My love affair with Hawker Hunter jet fighters started in approximately 1963 when the Rhodesian parliament opening was marked by a fly-by of nine recently acquired Hawker Hunters in diamond formation.

time-read
1 min  |
January 2025
FLYING THE HAWKER HUNTER
SA Flyer Magazine

FLYING THE HAWKER HUNTER

Flying a Hunter starts hours before actually walking out to the aircraft. This machine is a legend, but it is first of all about the highest performance machine that it is feasible for a civilian to fly. Flying it is not to be taken lightly.

time-read
10+ mins  |
January 2025
RIGHT SEAT RULES NO. 25 SLOW FLIGHT
SA Flyer Magazine

RIGHT SEAT RULES NO. 25 SLOW FLIGHT

Most of us feel a bit edgy when the ASI creeps down within 10 KIAS of the stall. Jim Davis has some hints on how to be comfortable and in control - even when the airspeed is 20 KIAS below the stall.

time-read
10 mins  |
January 2025