Dear supporter, 

The third Hush-Kit Book of Warplanes has now reached 25% funding. If you’ve supported it, thank you. If you are yet to, here’s a 15% discount code: 

HUSH15

This isn’t around for long! Head over to here 

Yours in aeroelasticity, 

Hush-Kit 

p.s. Here is Al Murray talking about thee book

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