Definition
Edgar J. Lesher (1935 – 2015) was an American aerospace engineer and aircraft designer noted for his contributions to light, homebuilt aircraft, most prominently the Lesher Teal series.
Overview
Lesher earned a degree in mechanical engineering from the University of Michigan and began his career in the aerospace industry, working for companies such as Boeing and Douglas Aircraft. In the 1960s, he turned his attention to designing and constructing experimental aircraft for personal use and the amateur‑builder community. His most recognized creations include the Lesher Teal (first flown in 1965), a single‑engine, low‑wing monoplane built primarily of aluminum, and later iterations such as the Teal T600 and the Lesher Nomad. Over his career, Lesher built a reputation for innovative structural solutions, efficient aerodynamic designs, and a focus on simplicity for amateur construction.
Etymology/Origin
The surname “Lesher” is of Germanic origin, likely derived from the occupational name “Lehser” meaning “lace maker” or from a locational name associated with the German word “leser” (reader). The middle initial “J.” stands for “John,” a common American naming convention.
Characteristics
- Design Philosophy: Emphasized lightweight construction, ease of assembly, and cost‑effective operation. Lesher’s aircraft often employed conventional control systems with modest powerplants, typically ranging from 85 to 150 hp.
- Materials and Construction: Utilized primarily aluminum sheet metal and riveted construction, with some use of composite materials in later designs for specific components.
- Performance: The original Lesher Teal achieved a cruise speed of approximately 150 mph and demonstrated low stall speeds, making it suitable for short‑field operations. Later models incorporated higher‑performance engines and refined aerodynamics.
- Legacy: Lesher’s aircraft have been featured in several issues of Sport Aviation and Aviation Week & Space Technology. His work influenced subsequent homebuilt aircraft designers who sought to balance performance with builder accessibility.
Related Topics
- Homebuilt aircraft movement
- Experimental aircraft regulations (FAA FAR Part 21, 23)
- Light sport aircraft (LSA) standards
- Notable designers: Burt Rutan, Moulton Taylor
- Aircraft design concepts: low‑wing monoplanes, aluminum monocoque structures
Note: The above information is derived from publicly available aerospace publications and biographical records.