We will only consider 0.40/0.46 cubic inch glow motors are these are the ones suitable for the range of models described overleaf. This is by far the most popular size engine used by the average sport flyer and there are a number of alternatives that are suitable for our needs. As with most things in life you pay your money and take your choice. Quality costs but there are a number of alternatives that will suit all pockets.

The reality of the situation is that there are no ‘duds’ out there but it is only logical to expect that more expensive motors will undoubtedly be more reliable and have been subjected to more stringent quality control. Hence these will be easier to set up and would be expected to last longer than a cheaper alternative.

Expect to pay between £40 for the cheapest option (MDS 40) to £90 for the dearest (OS 40 FX). Between these we have a choice of offerings from Irvine and SuperTigre. The OS LA series of motors look attractive as they are anodised blue but experience has shown me that they do not have the power I would like. Similarly, I would suggest that you stay clear of the cheap imports from Eastern countries; some of these go very well but many are tricky to set up and they are not that robust i.e. break readily if you hit the ground hard. When you are learning to fly you want a reliable motor; one that is giving you trouble will curtail your time in the air and prolong the learning curve.

Of the motors listed the OS is the best buy but also the most expensive. In addition to the motor you will need a propeller (10x6 is suitable for a 40), a spinner to suit the model , a glowplug and a gallon of glow fuel. Additional items that can be purchased later include a means to light the glowplug and an electric starter (a desirable accessory). However, do not buy these now. I’m sure if you have a word there will be a number of club members who would be willing to start your motor for you.

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