Photograph of Maurice Poirier with his 1920's rocket model for interplanetary travel.

“Maurice with his projecty” (PiP)

-It does not specify the type of engines other than gunpowder rockets.

-He had a French name and surname and did his experiments in Glendale, California.

“Normal airplane with added rocket engines”

-There is another Poirier invention. In addition to the normal gasoline engines, this airplane has several -quite a few- powder rocket engines distributed over the aircraft.