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
General Atomics LB
ZeroAvia begins leadership transition

Aerospace

ZeroAvia begins leadership transition

29 May 2026

ZeroAvia today announced that founder and Chief Executive Officer Val Miftakhov has stepped down as CEO, effective 26th May 2026, to pursue new opportunities.

IATA reports ups and downs in April air cargo and passenger demand

Aerospace

IATA reports ups and downs in April air cargo and passenger demand

28 May 2026

The International Air Transport Association (IATA) released data for April 2026, showing that due to conflict in the Middle East, total global air cargo was up 4.0%, whilst global passenger demand was down -3.4% compared to April 2025.

Parker Chomerics introduces CHO-AIR VITA 48.5 chassis seal

Aerospace Defence

Parker Chomerics introduces CHO-AIR VITA 48.5 chassis seal

28 May 2026

The Chomerics Division of Parker Hannifin Corporation is introducing its CHO-AIR VITA 48.5 chassis seal, an advanced air flow-through (AFT) sealing solution that meets the mechanical and interface requirements of ANSI/VITA 48.5-2026.

Scottish Leather achieves net zero Scope 1 and 2

Aerospace

Scottish Leather achieves net zero Scope 1 and 2

28 May 2026

Scottish Leather Group (SLG) has achieved net zero greenhouse gas emissions for Scope 1 and Scope 2 across its manufacturing operations, marking a major milestone in its long-term Journey to Zero in a traditionally energy-intensive sector.

Advertisement
ODU RT
Viasat and partners complete Iris RPAS flight trial

Aerospace Space

Viasat and partners complete Iris RPAS flight trial

27 May 2026

Viasat has collaborated with TTP and Frequentis, under the European Space Agency (ESA) Iris programme, on an Iris Remotely Piloted Aircraft Systems (RPAS) flight trial.

Aeromedic introduces soft-case first aid kits

Aerospace

Aeromedic introduces soft-case first aid kits

27 May 2026

Aeromedic - a provider of in-flight emergency medical and first aid kits - has introduced enhanced soft-case first aid kits, to meet regulatory and airline requirements.

Advertisement
ODU RT
Advertisement
Hexagon leaderboard