I just came up with this. The problem was, I really fell in love with the sound of my flutes but had an injury in my left shoulder a little while ago. Also the neck started hurting when playing for too long. I made a quenacho type flute but the sound is just not the same. So I came up with this prototype. Works pretty well even though it looks a bit crude.
No I can also make the lowest hole much bigger than before and strengthen the E, which was always a problem on my cylindrical design.
That would be way, way worse for me at least. I already find low whistles really difficult because they’re hard to hold and play: this would seem to make the issues worse.
But then I’ve been lucky not to experience any discomfort from the tranverse flute. A while ago i even posted about a “transverse low whistle” that you could play in flute position. All bodies are different
I like the way you think outside the box, square whistles, & now this… 
Lucky you 
. If it wasn’t for my shoulder injury it might not have occurred to me to do something like that. It is in fact a bit unbalanced but I will solve that by making the mouthpiece shorter to move it closer to the PVC-connector. But I am already pretty happy with how it plays.
Thanks. I have an even weirder idea on how to combine the flute and the whistle. I am not sure it will work though and I havent’t found the right parts so far.
Have you looked at the profile of the Jupiter vertical (or upright) bass flute?
I don’t know the name of the maker, but I am aware of the larger flutes with the head at an angle. I saw one in a video from Wouter Kellerman. I think he plays a contrabass flute in the video. The small one he plays in the beginning is the humble Yamaha YRF-21.
https://youtu.be/sz0bv9xz3ic
I have an idea of how to make it symetrical but I am not sure it will work the way I think it might.
Yes, I was wondering if the tube couldn’t be curved even closer underneath the embouchure like the Jupiter bass flute:
Yes, that might be a better balanced solution. I was thinking about something completely different – a t-piece in the middle with stoppers on both ends. But I am not sure it will even make a proper sound if you put a normal embouchure hole opposite the opening of the tube – it might disturb the airflow. But if I find an aluminium t-piece with 25mm and the right length, I might give it a try. I think it would also look pretty cool.
See this thread on the Georgi flute: https://forums.chiffandfipple.com/t/giorgi-flute/100915/1
Ah, yes, something like that. Too bad when you come up with an idea and someone had it before 
. However my idea is still slightly different. That Giorgi-flute looks not much different from a quena/quenacho. I made many of those but the “problem” is that the low D is not as powerful as on a normal flute because of the missing extra air-pocket between stopper and embouchure. The one I made just recently sounds nice enough but the timbre is still different from a normal flute.
And next to a real quenacho:
