Fantastic! I am full of admiration for Aero Vintage and Retrotec. I can not help but feel that the historic aviation community owe a huge debt of gratitude to Guy Black and equally to Angus Spencer-Nairn. Both these men have allowed us to see and hear some very special and rare machines. The complex and challenging engineering and in-depth research that Guy has performed over the last couple of decades is something that i for one am very appreciative of. I really commend him for taking on these challenging projects. In time i will very much be looking forward to seeing and hearing the DH-9.
Totally agree with this!
And thanks very much for posting Andy. Looking forward to your book, also