Staff Writer (Updated: 5/23/2016):
At its core, the L-4 Grasshopper was of a high-wing monoplane design, braced at the fuselage, with seating accommodations for two that could include a pilot and passenger/instructor. The lightweight and rugged reliability of the system endeared it to her crews and the Grasshopper went on to provide decades of service in war and peacetime with several nations. Having been designated as the L-4 by 1942, the system was ordered for evaluation as training gliders and accepted by the USAAF (United States Army Air Forces) as the TG-8. The US Navy took on their own versions of this Grasshopper as the NE-1 and the NE-2. An ambulance version of the Grasshopper existed in later forms as the HE-1, though the "H" in the designation was soon reserved for helicopters alone, leaving the HE-1 now as the AE-1.
The L-4 Grasshopper served armed forces well over the years, concluding production in 1981, though the popularity of the system triggered the reopening of the production lines in 1988. These new line Grasshoppers, appearing with modifications and upgrades, failed to light the fires that were burning in the early years however. Some 5,500 aircraft of this series were said to be produced, though some sources put the number as high as 5,700. In any respect, the Grasshopper series proved vital for the US military in the Second World War and the Korean War.