This is exactly what the rotary should be used for.
https://en.wikipedia.org/wiki/Turbomeca_Astafan

Dan Gorsline

Ducted fans are very inefficient in this speed range.
Many have tried before.

Paul Lamar


The Rotary Engine free News Letter. 750 subscribers world wide.

ACRE NL web site. http://www.rotaryeng.net
YouTube  Key word "PaulLamar2". Keep clicking
this as Youtube will try to divert you to advertising.