I AM having difficulty in understanding your report on the near miss between an RAF tutor and a Tucano aircraft flying out of Linton on Ouse (The Press, May 5).

You state the the tutor pilot first observed an indication of the proximity of the Tucano on his air speed indicator. Unless these instruments have changed remarkably since I hung up my headset in 2007, it would have shown just that although, in some circumstances corrections have to be made for pressure and temperature.

You also state that the Tucano was to the left of the tutor and was instructed to turn right; surely this would have bought the Tucano closer to the tutor rather than further away?

Lastly, the wind would have little effect. If both aircraft were heading into a 20-knot wind, both would have had their ground-speed reduced by the same amount, although the faster-climbing Tucano would have been slightly more affected with the wind speed increasing with height, but only slightly.

M C Usherwood, Mendip Close, Huntington, York.