In article , Frode Berg wrote:
Has anyone any experience with this?
Heck, I don't even know If it would fit through the door, never tried, but
for it to work at all, I'd need some sort of foldable seats in the rear, and
let the neck come between the front seats in some way.

I've not flown with a double bass, but I do play the keyboard. When
I was living in Houston, I took my Roland A-90 keyboard + amp + speakers
up to Pinckneyville, IL. for the flyin (a 600nm trip). The A-90 has
a fullsize piano keyboard, and it's weighted so the sucker is heavy.

Before the trip, I measured the inside of the Bonanza's cabin (I was
taking an S-35 Bonanza up there). It was easily bigh enough, and the
back seats could be folded down flat.

Then on the morning of the departure, I got the enormous keyboard
in its case out of my truck, and then wondered how I was going to
actually get it in the hole that the open door offered! I didn't think
of that. Duh!

After a little thought, I found that if I opened the door wide, I could
feed in the keyboard in its case from in front of the aircraft, angled
down, so it went in at the right angle. It wasn't too difficult (apart
from having to stand on the wing trying to manoevre a large, heavy
object). I tied it down with a bicycle security chain connected to the
rear seatbelts. Flew it up there and back fine.

--
Dylan Smith, Castletown, Isle of Man
Flying: http://www.dylansmith.net
Frontier Elite Universe: http://www.alioth.net
"Maintain thine airspeed, lest the ground come up and smite thee"