India Four Two's question
Simon,
The designer of the E-1, Charles Healy Day, is credited with developing the technique of using laminated wood to make propellers, thus increasing their strength. In 1910, he also built and flew America's first tractor biplane. He later developed the New Standard D-25 aerobatic biplane.
Back to the Standard E-1, after WW.I, three E-1s were converted to remote controlled torpedo carriers. One of the earliest RPVs.
Cheers.
Bri