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John Monnett designed and built the Monex in 1979. At that time, no other aircraft in the world could match the speeds achieved by the airplane, which was powered by a modified 2100 cc. Volkswagen automobile engine. John conceived and built the Monex as a test vehicle for his new construction methods, which were utilized in the popular Moni Aircraft Recreation Vehicle.

John took his Monex to the fly-in at Oshkosh in 1982, where he planned to show off his speedy design. Oshkosh ’82 was the Monex’s first time out and, though it wasn’t designed for competition, pilot Chuck Andrews flew the airplane to victory.

On Monday of the fly-in, Chuck flew the Monex in the Lowers-Baker-Falk 500 Race, where he took third place for efficiency and fifth for speed. The Monex flew 500 miles on 80 pounds of fuel, missing second place by just .4 pounds of fuel. Chuck and John expected the Monex to be faster, but the wing was out of rig due to a previous mishap and the prop spinner self-destructed during the race. Despite the mishaps, the Monex averaged better than every other single place airplane in all three competitions.

The next day, Chuck set two World Speed Records in the FAI’s class C-1a-O in the Monex. The class was set for aircraft with a maximum gross take off weight below 661 pounds; most airplanes in this class are ultralights, but the little all-metal Monex was light enough to fit into the category. To lighten the load, the Monex was stripped of its radio and several other instruments. In the 100 kilometer race, the Monex ran 185.12 mph and in the 500 kilometer race, it ran 182.308 mph. Both days Chuck was slowed down by turbulence, and had a corrected speed of over 203 mph.

Chuck, John, and everyone from Monnett Experimental Aircraft, Inc. had to work very hard to make the Monex at least partially competitive. A few props were broken and some last minute modifications were made to the airplane just a few weeks before the races.

With all the mishaps and work done on the Monex, John realized his little airplane was too hot for the average pilot. The Monex remained a one of a kind airplane, which John donated to EAA in 1985.

Monnett Monex Monnett Monex

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