The Schubeler is just awsome .. I have had three of them and still run one in my Tam Jets A-4.. the older version with four blades DS-94 hdt
The new DS-94 HST is a 128mm fan... same size as the Dyn-e-max... the problem is for now the motor is desinged to run on 14s
So you would need two 14s setups, He is working on a 12s version but it's not out yet.. also it's $1500 bucks a fan with motor, esc, and fan...
but it's a very nice fan Danielle Schubeler makes some of the finest fans in the word.. but they do come with a price tag
I do want to try a 12s verison in my A-4 when they come out... maybe even the 14s
here is a link :
http://www.schuebeler-jets.de/
It can be bought through Altecare in October..link:
http://www.altecare.com/hstpropulsionsystems.htm
so many options out there it's great
Ron