The challenge will be your fans.
Regular DC12V (2 wire) fans (or other voltage range) are usually brush-less but not designed to be speed controlled. In fact if you try that you will most likely burn them out in seconds.
Whilst the CPU cooling fans are speed adjustable I doubt you will find any that are powerful enough to get anything airborne.
There are industrial type of fans which can be speed regulated, but it is a different pulse form for regulation than what a regular FC produces. (FC’s usually produce a waveform pattern suitable to controlling servos & ESC’s)
So this would require some sort of frequency converter.
In a nutshell the best option would be using electric jet engine type fans which are already designed to be speed regulated using standard ESC’s
Someone done already such a similar project a few years ago:
Yes basically the idea is to play on different type of optimisation with less electric consumption multiplication of fans/turbine with a specific air conduct output design not so big as the ones tested there.
Yes during a few readings on the documentation and here I read that one of the Blheli do not work and the other yes.
On the description on AliExpress it was not clear which one it is !
Pression = Force / Surface
As I’working on a concept of air compression that moves in a specific form factor conduct the airflow at the output will be at really higher pression and should in theory generate a higher lift.
The idea is not so dumb as one experiment has already been made according to the video kindly posted there.
I would like to avoid to use too expensive and heavy jet engine as in this prototype.
I made a very theoretical design with 16 compressor by groups of 4. And a specific airflow collector for each group of 4.
So it would require 4 4in1 Blheli 32 esc.
I would like to keep on 50A motors for the compressors.
For the battery we start with lipo but will test other alternative.
And for the motors we should replace them also.
I want just to build a test platform and have my 16 compressors blowing.
If I have not enough lift for the moment it’s not a problem.
This platform is really exciting as it enables to be ready very fast for experimentations.