News archive: H55 | Airframer

29 July

Collins Aerospace supplied the 1-megawatt electric motor and motor controller for the hybrid-electric system.

Pratt & Whitney completes hybrid-electric ground tests

Initial testing of the flight-standard propulsion system and propeller has been completed in Longueuil, paving the way for installation on a Dash 8-100 testbed.

18 June

H55 has accumulated more than 2,000 flight hours without a battery-related incident.

H55 powers ahead with RTX flight demonstrator battery

Certification-grade modules have entered active flight-test integration, reinforcing the company's readiness to support future hybrid-electric aircraft programmes.

29 April

ReleaseH55 successfully completes System Safety Function Verification Testing of integrated Energy Storage System

20 April

ReleaseH55 and Smartflyer advance electric aviation with first delivery of certifiable battery modules for the SFX1 aircraft

10 April

ReleaseH55 selects Safran to supply the electric propulsion unit for the Bristell B23 Energic

8 April

ReleaseH55 delivers first commercial, certifiable propulsion battery modules to BRM Aero for the Bristell B23 Energic program

18 March

ReleaseH55 battery technology helps power progress of RTX Hybrid-Electric Flight Demonstrator

5 February

H55’s Propulsion Battery Module, which successfully completed all regulator-required certification tests.

H55 clears key battery certification hurdle

EASA-supervised test campaign confirms ability to contain worst-case failures, enabling scalable commercialisation of electric aircraft propulsion systems.

12 September

ReleaseSmartflyer and H55 partner to power the SF-1

4 September

Deliveries of battery packs from Longueuil are scheduled to begin in 2027.

H55 opens Longueuil facility for electric aviation

Government backing secured H55’s headquarters in Québec, enabling the company to expand into North America with facilities committed to electric propulsion and sustainable aviation.

7 August

The B23 Energic registered at one-tenth the noise level of a piston aircraft.

B23 Energic slips under radar in Centennial Airport noise test

H55’s electric aircraft flew below ambient thresholds at three of six monitoring points during flights alongside a piston-engine comparison aircraft.

19 June

The RTX Hybrid-Electric Flight Demonstrator is developing a highly efficient Pratt & Whitney Canada thermal engine, combined with a Collins Aerospace 1 megawatt electric motor.

Hybrid-electric system charged to full power during ground tests

Pratt & Whitney Canada and AeroTEC have moved forward with their RTX demonstrator by testing propulsion and battery performance in Quebec.

24 July

ReleaseH55 keeping up the momentum: series C funding closed, accelerating electric propulsion certification

21 May

ReleaseH55 is thrilled to announce discussions regarding the Government of Quebec's investment in H55

17 April

BRM and H55 open the order book for the Energic

They say that the B23 Energic will be the first clean and efficient fully electric aircraft in the CS-23 general aviation category, with the first deliveries to a selected group of launch customers scheduled early next year.

26 March

ReleaseAnother important milestone in H55's path to product certification

22 February

ReleaseThe final home stretch for H55's battery pack certification

18 January

H55 brings Equipmake onboard for electric trainer motors

The result will be a 100kW fully certified electric propulsion system for H55’s customer project with BRM Aero, for use on a two-seater electric trainer, the Bristell B23 Energic.

18 October

The groundbreaking ceremony included the presence of esteemed H55 stakeholders, including valued customers, trusted suppliers, senior government officials, and members of the local community.

H55 kicks off construction of North American premises and Canadian HQ

The new facility will include product development and customer integration support and will play a crucial role in the company's ambitions in bringing clean aviation solutions to the North American market.

26 June

ReleaseEquipmake signs aerospace electric motor production supply agreement with H55

8 March

ReleaseH55 is accelerating its international activities through the support of the Canadian government in the development of its Canadian subsidiary, H55 Canada Inc.

20 December

ReleaseRaytheon Technologies completes first engine run of regional hybrid-electric flight demonstrator

11 October

ReleaseRTX Ventures invests in H55

18 July

ReleaseCollins Aerospace completes preliminary design of 1MW electric motor for Pratt & Whitney Canada's Regional Hybrid-Electric Flight Demonstrator

29 June

H55’s core product is the modular Electric Storage System (ESS) which includes battery packs, battery management systems, and all interfaces with the EPS.

Double certification marks a milestone for electric propulsion experts

H55 has demonstrated that it is capable of designing, developing, flight testing and producing electric propulsion systems including batteries, mechanical assemblies, software and airborne electronic hardware.

19 May

ReleasePratt & Whitney Canada selects H55 as battery technology collaborator for regional hybrid-electric flight demonstrator program

19 July

ReleaseH55 zero-emission electric airplane completes its first flight, a stepping-stone towards electric propulsion for flying taxis

21 June

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