over on the dutch modelling forum, someone build this cool Royal Navy Ka29 helix :mellow:
http://www.modelbrouwers.nl/phpBB3/viewtopic.php?f=161&t=28289
(https://www.whatifmodellers.com/proxy.php?request=http%3A%2F%2Fwww.modelbrouwers.nl%2Falbums%2Fcoppermine%2Falbums%2Fuserpics%2F12771%2FIMG_8312.jpg&hash=fc9dba362c0a66d75c5ac766b56b4f8652ce27a8)