The HELIOGYRO, an Interplanetary Flying Machine

[Michel Van]

I found this on NTRS

The HELIOGYRO is a design concepts for a manned solar sail vehicle
By Richard H. MacNeal, of the Astro Research corporation.
March 1967.

The Study look in two designs
One with two wings in the manner of a helicopter rotor. deploy 36,000 ft diameter (11 km)
Second with pinwheel design for unmanned probes

https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19670018298.pdf

https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19690019483.pdf

 

[Michel Van]

Found Additional PDF about Heilogyro on NTRS

https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19710005841.pdf

https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19710018523.pdf

https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19780016313.pdf

https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/20110023680.pdf