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Compression Stroke Whistle

A handy little tool that helps you detect the compression stroke of your engine. Just remove one of the spark plug from the #1 cylinder, insert this tool, then rotate the prop and listen for the whistle. That your indicator that the piston is on the upstroke of its compression cycle. This unit comes with 14mm threads, but 12 & 18mm adapters are available for standard aviation use.

Stocking, processing
and delivering aerospace parts

Hello and welcome to our website. Contained within these pages is most of the information found in our printed catalogue, all available to order online! In addition you can search our entire inventory of over 125,000 part numbers.

Stock and pricing of all parts listed on this site is live, all prices exclude VAT and shipping. All orders are subject to our standard terms and conditions.

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Quality products
and easy ordering

All our stock is available for next day delivery. In addition we have distributorships for Aircraft Tool Supply, LP Aero Plastics, Falcon Gauge, Ceconite / Randolph and Shield Technology to name but a few!

We are also the UK and European distributor for Aircraft Spruce and Speciality, with whom we have been doing business with for over 25 years.

Should you ever need any further information then our experienced sales team are just a phone call or email away and will happily answer any questions you may have.