Originally Posted by Bill Quantock
I've flown my 53g F-35C with HK's version of the 27mm fan you described and I've also flown the stock GP Micro Sabre. There's no comparison...the Sabre with GP's 30mm Hyperflow system has way more power (same 180mah 2S batteries for the comparison) and is a lot more fun to fly!
I've started my second F-35C with (you guessed it) 30mm GP Hyperflow EDF. Will report when I fly version 2.
The Hyperflow on a good 3S 180mah pack will increase the
factor even more.