Ivan Makhonine, a misunderstood genius?
Ivan Makhonin is relatively "known" for his method of liquefaction of coal and lignite (process which ruined him but that is another story) but much less for his other works.
Here is a small Press review which presents some of his other work and complete those Makhonine of fuel
The fuel in short Makhonine
A variable-geometry aircraft.
Makhonine designs the 1st variable geometry aircraft in history… 36 years before the Mirage G from Dassault!
Mirage G at low speed
Mirage G high speed.
The Mak 1 whose wingspan could vary from 13 to 21m. It was also the largest single-engine aircraft of its time.
We have very little information on this.
Ivan Makhonine before his plane with variable geometry
The variable geometry aircraft