Having had 'the pleasure' of seeing an i16 fly at Duxford this year a couple of things stand out:
- You'd have to be brave or mad to fly this thing
- I'm sorry to say it sounds terrible! Almost tractor-esque. It's a pity we don't get the true recreation of the sound in BoP. What I thought would be quite a torquey engine did seem to lose speed quite quickly when climbing. Admittedly this was only an airshow but it did not impress me particularly especially as there were aircraft there from the same era.
And just so you don't flame me, here's a couple of pics to calm you down!!!!
Drop me a pm if you so desire and I'll happily email you the originals