Wallace McNair’s Hirth Powered Mynah

Here’s a great close up of Louis McNair in the Hirth F23 powered Mynah.

Wallace says ‘It is running very well, as expected. The 72  x 36 inch prop driven with a 2.7  : 1 reduction is proving ideal.  At the time I ordered the F23 I tried to buy the Hirth belt reduction with that ratio but was told it was not produced. A pity because the big prop gets a very good grip!’

Thanks for the photo and feedback Wallace!

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