Advancing UK Aerospace, Defence, Security & Space Solutions Worldwide
  • Home
  • /
  • Aerospace
  • /
  • Britten-Norman introduces Unleaded Fuel Modification for piston engine Islanders

Aerospace

Britten-Norman introduces Unleaded Fuel Modification for piston engine Islanders

Britten-Norman is taking the next step on its journey towards sustainable aviation with the introduction of the Unleaded Fuel Modification for its BN2B-26 piston engine (Lycoming O-540-E4C5) Islander aircraft.


     
Above: The Unleaded Fuel Modification is part of Britten-Norman's Green Futures initiative.
Courtesy Britten-Norman  
  
 
The three Lycoming-approved unleaded fuel specifications being included in this modification are ASTM D7547 (UL 91 & UL 94), DEF-STAN 91-090 (UL 91) and HJELMCO (91/96 UL).

Advertisement
ODU RT

 
In addition to reducing their environmental impact, operators of Islander aircraft who switch to unleaded fuels can potentially enjoy several benefits. These include cost savings on refuelling, reduced maintenance expenses, access to a wider range of fuel options, extended servicing intervals and enhanced safety through the use of unleaded fuels.
 
The decision by the US Federal Aviation Administration (FAA) to phase out leaded AVGAS has further underlined the importance of transitioning to unleaded fuels.
 
Advertisement
ODU RT

The certification of these new fuel types for the Britten-Norman Islander through the introduction of the Unleaded Fuel Modification opens the door to further possibilities for novel and environmentally friendly fuel types in the future.
 
Mark Shipp, Technical Director and Head of Design at Britten-Norman, commented: “Britten-Norman is committed to delivering a sustainable future for aviation through our Green Futures initiative. This development is an important milestone for the hundreds of Islander operators who will be able to reduce their emissions through the introduction of unleaded fuels.”
 

Advertisement
Gulfstream banner
Airbus delivers first A321XLR for Air Canada

Aerospace

Airbus delivers first A321XLR for Air Canada

24 April 2026

The first of 30 Airbus A321XLRs for Canada’s flag carrier Air Canada, has been delivered.

UKEF partners with Finance for Forces to support veteran-led exporters

Aerospace Defence Security Space

UKEF partners with Finance for Forces to support veteran-led exporters

24 April 2026

UK Export Finance (UKEF) – the government’s export credit agency – has announced a new partnership with Finance for Forces to help more veteran-led businesses access the finance they need to grow internationally.

Boeing and Ontic expand partnership

Aerospace Events

Boeing and Ontic expand partnership

24 April 2026

Boeing and Ontic have announced a new distribution agreement at MRO Americas to supply Grimes engine valves to commercial airlines worldwide, pairing Boeing Distribution’s global reach with Ontic’s manufacturing to shorten lead times and improve aircraft readiness.

Air ambulance pilots and CAA issue warning to drone flyers on World Pilot Day

Aerospace Security

Air ambulance pilots and CAA issue warning to drone flyers on World Pilot Day

24 April 2026

On World Pilot Day (Sunday 26th April) air ambulance pilots are teaming up with the UK Civil Aviation Authority (CAA) to urge drone users to fly responsibly after emergency helicopter flights were disrupted by drones during lifesaving missions in 2025.

Advertisement
ODU RT
Cranfield leads UK research into aviation’s non-CO₂ climate impacts

Aerospace

Cranfield leads UK research into aviation’s non-CO₂ climate impacts

23 April 2026

Cranfield University has been selected to play a key role in a major UK research initiative aimed at improving the understanding of aviation’s non CO₂ climate impacts.

Ontic introduces strategic teardown procurement initiative

Aerospace

Ontic introduces strategic teardown procurement initiative

23 April 2026

Ontic has introduced a new teardown procurement initiative to address one of the industry's most persistent challenges, namely the availability of hard-to-source components for established platforms.

Advertisement
ODU RT
Advertisement
Gulfstream banner