Sustainable Aviation Intelligence

9 Jul 2026

New Propulsion: Ahead of Farnborough, an encouraging uptick in firmed orders

Firm orders for new propulsion fixed-wing clean-sheet aircraft as well as retrofit powertrains have experienced a notabl...

11 Jun 2025

New Propulsion: Commitments down starkly ahead of Paris Air Show

Orders and commitments for new propulsion fixed-wing clean-sheet aircraft as well as retrofit powertrains decreased star...

10 Jan 2025

New propulsion round-up: commitment volumes down 37% in 2024

Orders and commitments for new propulsion fixed-wing clean-sheet aircraft as well as retrofit powertrains decreased in 2...

11 Jul 2024

New Propulsion H1 2024 round-up: Commitments down slightly ahead of Farnborough

Orders and commitments for new propulsion fixed-wing clean-sheet aircraft as well as retrofit powertrains decreased slig...

23 Jan 2024

New Propulsion 2023 round-up: Interest shifts to hybrid-electric products

Orders and commitments for new propulsion fixed-wing clean-sheet aircraft as well as retrofit powertrains decreased in 2...

4 Aug 2023

SAVi Five: Favourable economics of ATR72 hydrogen retrofit, US SAF lobbying analysis, and more…

This week's highlights include one of the most in-depth assessments to date on the economics of hydrogen-retrofitted tur...

29 Jun 2023

Clean propulsion: Lessors firm up 140 orders as sector surpasses 4,000 commitments

Clean propulsion leasing firms MONTE and Rockton have firmed up existing orders with ZeroAvia and Heart Aerospace, affir...

26 Jun 2023

Paris sustainability takes: Industry calls for SAF incentive extensions, new tech galore

Ishka summarises some key sustainability takeaways from last week's Paris Air Show and concurrent events, including ISTA...

21 Apr 2023

SAVi Five: CAeS and Britten-Norman merge, Spain gets a ‘Jet Zero Council’, and more

This week's highlights include the merger agreement between Cranfield Aerospace Solutions (CAeS) and Britten-Norman, Sus...

11 Apr 2023

New propulsion: New LOIs in 2023 as start-up OEMs get new investment

Ishka compiles commitments (orders and LOIs) for fixed-wing alternative propulsion aircraft and conversion kits in the r...

18 Jan 2023

How MONTE is pioneering clean propulsion aircraft leasing

With commitments for three different types of new propulsion technology retrofits and agreements with over 20 operators ...

14 Dec 2022

Investor guide: How asset managers now make up 1/3 of ‘next-tech’ commitments

Aircraft lessors and asset managers now account for approximately one-third of all commitments for fixed-wing alternativ...

13 Dec 2022

Investor guide: The 3,000+ order surge for ‘next-tech’ propulsion

For the first time, Ishka compiles commitments (orders and LOIs) for fixed-wing alternative propulsion aircraft and conv...

27 Sep 2022

Which aircraft can be converted to low or zero-emission propulsion?

The 14 commercially-operated aircraft types for which a conversion option to a zero or low-emission powertrain exists or...