Dossier

Rotron RT600-HC

We last featured Rotron Power in UST 4 (Autumn 2015), its RT600 twin-rotor Wankel gasoline engine having enjoyed significant commercial success, in both of the versions that were then available...

Dossier

Limbach 2400 DX and 550 EFG

We previously featured German aero engine manufacturer Limbach in UST 17 (February/March 2018). In that article, the company detailed its 7 kg L 275 EF two-stroke boxer twin that produces 18 kW and is aimed squarely at the kind of 25 kg MTOW UAV that has become the mainstay of aerial data and surveillance providers.

Dossier

Kodiak Driver

Road freight is vital to the US economy. The industry is worth more than $800 billion, and readers in the US can safely assume that two-thirds of the objects around them were transported at some point in a Class 8 truck such as the archetypical five-axle 18-wheeler...

Dossier

Aergility ATLIS

As reported in the past in this publication, the traditional helicopter configuration has long left something to be desired among military and civilian end-users. Commonly cited weaknesses include the maintenance costs of their swashplate and other moving parts, the vulnerability of the tail rotor, and a tendency towards mechanical failures in mid-flight...

Dossier

Infinity fuel cells

As PEM fuel cell solutions mature, so interest turns increasingly towards optimising their efficiency and minimising the amount of heat wasted...

Dossier

TideWise USV Tupan

In Brazil, offshore energy is big business. The country is the world’s eighth-largest oil producer, most of which comes from basins off ...

Dossier

Xer Technologies X12 and X8

Rory Jackson traces the development of these electric multirotor UAVs that feature gasoline two-strokes for range extension...

Dossier

Cobra Aero A99H

In UST 12 (February/March 2017) we featured the A33i UAV engine, a spark-ignited single cylinder two-stroke developed through a collaboration between Power4Flight, Currawong Engineering and Cobra MOTO, the latter of which aptly spun off the Cobra Aero...