The planing bottom had two steps, one under the trailing edge of the wing and the other further aft . Longitudinal stability was assured by wing floats of similar construction to the hull.
32.
Although his design was not very practical-the steam boiler generated intense heat in the cramped confines of the vessel, and it lacked longitudinal stability-it caught the attention of the Swedish industrialist Thorsten Nordenfelt.
33.
One of the faults remaining with the aircraft through its operational life was poor longitudinal stability, resulting from a fuselage that was too short due to the necessity of fitting on to aircraft carrier elevators.
34.
Flight tests revealed that the RF-100A in its intended operational fit of four external tanks was lacking in directional and longitudinal stability, requiring careful handling and close attention to speed limitations for the drop tanks.
35.
It was not very practical-the boiler full of superheated water made conditions inside the submarine very hot indeed, and in common with many early submarine inventors he had not overcome the problems of longitudinal stability.
36.
Positive stagger is by far the most common, as this positioning of the upper wing ( s ) allows better visibility for the crew as well as increased aircraft longitudinal stability, aerodynamic efficiency and maximum lift.
37.
". . . the safety board is concerned that the susceptibility of the ( Jetstream 31 ) to reduced longitudinal stability upon selection of 50 degree flaps was not detected during the airplane's original icing certification tests ."
38.
Realizing that swept wings increase longitudinal stability, the team deleted the tail ( empennage ) and the supporting fuselage, it thus became a swept-back flying wing with only a rudimentary forward fuselage and a fin ( vertical stabilizer ) at each wingtip.
39.
The prototype used a conventional low landing gear design, but this was later developed into a high landing gear to set the vertical center of gravity to the prob hub height to prevent longitudinal stability issues and bunt " push-over " accidents.
40.
Lin Hendrix, one of the Republic test pilots assigned to the program, flew the aircraft once and refused to ever fly it again, claiming " it never flew over indicated, since at that speed, it developed an unhappy practice of'snaking', apparently losing longitudinal stability ".
