Guido Gonzato Home Page
How To Make Tutorial
‘Low D Whistle’ Plan
Thanks to Mr Ed who pointed me in the right direction I now have the whistle body and mouth piece and fipple completed, I have tuned the bell note of the whistle “Low” and "High D’ the whistle is close to complete 
I will update post with pictures and some tips as to what made the whistle easier to make for me. For now here is a recording of the whistle a simple looped piece using the low D E F and G notes. Some of the notes aren’t quite right yet as I have all 8 mm holes and I’m waiting on 9, 10 and 12 mm drill bits to arrive. One thing I’ll mention the playing of this Low D whistle is quite a shock, very different from my High D whistles (no surprises there) because of overall size and the hole spacings.
Oh sure, blame it on me. 
You’ll know you’re hooked on making 'em when you can’t go by a hardware store without wanting to get some pipe and dowel.
Looking forward to pictures and more sound clips of your low D. 