Found the starting pictures back again on the phone. So, This is how it started...
IMG_20190320_090658521 by
Buddy Holly, on Flickr
I started early this morning to make good progress. And progress was made!
The aluminum tube was cut in 4 pieces of 10 centimeters, ends were sanded smooth. Boring job was to cut 16 round plates from 0,75 mm styrene sheet. 8 of those are used as end plates of the tubes, the other 8 are cut again. This time a 20mm circle in the middle of the plates were made and presto! The first testfit for the rotors was successful (see left hand side of picture). Also cut out the main carriers for the for and aft set of rotors.
IMG_20190320_101436195 by
Buddy Holly, on Flickr
All rotors almost finished. Main carriers for the for and aft set of rotors in front:
IMG_20190320_113019451 by
Buddy Holly, on Flickr
all rotors finished and rotors attached to main carriers. Rotors are able to rotate!:
IMG_20190320_123818278 by
Buddy Holly, on Flickr
With the Flettner rotors in front of the fuselage it definitely look like a combine!
After some test fitting the pillars on the Bronco's fuselage proved to be to low. Now the front rotors touch the upper canopy. So remove the pillars and made me new ones. The aft set of rotors are going to be put higher than the set in front to make the best use of undisturbed airflow.
Next up are the engines. they are to be put just in front of the forward set of rotors.
For any further reading over Flettner rotors and its use on aircraft:
https://en.wikipedia.org/wiki/Flettner_airplaneAnd a video proving the concept is able to fly!
https://www.youtube.com/watch?v=hlmvHfIAszoDavid aka 63cpe