Californian Professor Jerome S. Zerbe produced a sextuplane with six 15′ wings forward-staggered over a framework bearing two tractor props, but there are no records of its success, if any.

In 1909 Californian Professor Jerome S. Zerbe built the four place cabin quadruplane Air Sedan. There were four short-span, double-cambered, forward-staggered wings, apparently with a ganged variable angle of attack. The cabin was plywood-clad.

Powered by a 100hp Gnôme or 90hp LeRhône rotary, it was flown by Tom Flannery from a field on the Washington County fairgrounds for a distance of about 1,000′ before being damaged on landing. No other flights were recorded.

James Slough Zerbe, known as Professor Jerome S. Zerbe built three multiplanes circa 1910. The Quintaplane of 1910 had five wings attached to what appears to be a flying motorcycle.

Whether or not it ever flew is unknown, but the second five-wing multiplane built by Californian Professor Jerome S. Zerbe, came to grief on January 11, 1910 during the 1910 Los Angeles International Air Meet at Dominguez Mesa. It was reported as being “a casualty before becoming airborne.”

James Slough Zerbe, known as Professor Jerome S. Zerbe built three multiplanes circa 1910.
Multiplane of 1910.

The second five-wing multiplane built by Californian Professor Jerome S. Zerbe, came to grief on January 11, 1910 during the 1910 Los Angeles International Air Meet at Dominguez Mesa.