Nicholson McLaren Aviation holds UK CAA, EASA Third Country & FAA Approvals


Aviation Engine Dyno Test Cell Facility

A purpose built aviation dyno facility

At our facility in Wokingham we are have a state of the art purpose built eddy current dynamometer able to test Textron Lycoming and Continental Aerospace Technologies four and six cylinder turbo or normally aspirated engines.

We can test lycoming Aviation engines from a Cessna 152 O-235-L2C through to the turbo Piper Navajo Clockwise TIO-540-J2BD and counter Clockwise LTIO-540-J2BD and Continental Engines from Cessna 150 O-200-A to the Turbo Seneca V Clockwise TSIO-360-RB and Counter Clockwise LTSIO-360-RB Engines.

The Dyno is fully Computer controlled meaning variable load to assist in the break in. We are able to control maximum RPM as well so no worries about overspeed on test.

Our Dynamometer is capable of logging second by second so we can monitor RPM, cylinder head temperatures (CHT), exhaust gas temperatures (EGT), Metered and unmetered fuel pressures, oil pressure And Manifold pressure.

Please rest assured that all our engines are released with a full engine test on our state of the art Dynamometer test bench at our facility, unlike some of our competitors that will ask you to test the engine ‘on the wing’

We pride ourselves on first class preparation, build and our after sales assistance should you require it.

All our Engines are released to service with an EASA form 1 or FAA Release.


True engine development can only be carried out with an aviation engine dynamometer in a controlled environment such as our in-house aircraft engine dyno testing facility.

Our in house Engine Dyno facilities include engine dynamometers for aviation and automotive, and our hub dyno for vehicles. Each testing cell is equipped with comprehensive instrumentation, computer control and data acquisition. A wide range of sensors and probes monitor the aviation engines every beat, together with extensive cooling facilities we can be sure that we are always in full control of an engines running conditions.

The ability to record accurate and repeatable data, corrected for atmospheric variations, allows us to test engines and obtain government power certifications for major manufacturers.


Computerised data logging allows us to collect far more data much quicker and with the ability to overlay data from previous tests, ensures that even small improvements are not missed.

Interested in an aviation engine rebuild or dyno test?
Call +44 (0) 118 973 8011