Powertrain

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.

Focus on...

Solar power

Many UAVs and USVs now come fitted with solar panels covering much of their surfaces. The interest in solar energy comes from more than it being a potentially limitless source of green power; for uncrewed systems it extends autonomy in a practical sense.

Focus on...

Propellers

Uncrewed systems have evolved over the past few years, leading to commercial, high-end UAV manufacturers attracting investment and setting up partnerships with organisations in markets including logistics, energy and defence....

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...

Platform One

Countdown starts for cells

GS Yuasa Lithium Power (GYLP) is developing a small but scalable battery for space systems. The small form factor lithium-ion battery has completed the Preliminary Design Review and is now moving to the critical design phase....

Platform One

Real-time fuel level data

A capacitive fuel level sensor from Reventec is being used to provide realtime level data from a Martin UAV V-BAT tactical UAS. Reventec’s LS200 has a solid-state capacitive sensor with no moving parts and measures the full depth of the fuel tank to an accuracy of ±0.5% to provide critical fuel level data to operators...

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...
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