home *** CD-ROM | disk | FTP | other *** search
- James Harold ("Jimmy") Doolittle
-
-
- (OCTOBER 7, 1929)
-
- Totally blind flying, solely by the aid of navigating
- instruments, became an accomplished fact for the first time last
- week. Lieutenant James Harold ("Jimmy") Doolittle, 33, "best
- Army Flyer," did it, at Mitchel Field, L.I. Thereby he completed
- eleven months' experiments for which the Daniel Guggenheim Fund
- for the Promotion of Aeronautics borrowed him from the Army Air
- Corps, and which presaged the highest safety in flying through
- no matter what weather.
-
- Blind flying, where nothing of the ground or horizon can be
- seen, is the terror of aviation. At the speed of plane flight
- (100 m.p.h., usually) a pilot loses his sense of balance. At
- night or in fog, where he cannot orient himself against ground
- objects, he flies to one side, his wings tilt, the plane goes
- up, down or, happily, level. He does not know. His instruments
- go "hay wire." He is helpless.
-
- Three new instruments developed during the eleven months' work
- made Lieutenant Doolittle's work possible. Those instruments:
- 1) Visual radio direction finder consisted of two reeds
- vibrating in consonance with a new short range radio beacon at
- Mitchel Field. When the plane is directly in the path of the
- beacon, the reeds vibrate uniformly. When the plane is off
- course, one reed fibrillates faster than the other. The closer
- the plane is to the beacon, the more intense the vibration. 2)
- Artificial horizon showed instantly at what angle the plane was
- flying in relation to the ground, whether and how the wings were
- tilted, whether the nose was up, down or level, and to what
- degree. 3) Barometric altimeter showed to within a very few feet
- how far above the ground of a particular field, in this case
- Mitchel Field, the plane was at all times.
-
- A two-seater, dual control Consolidated biplane was equipped
- with these new instruments, plus of course the usual flying
- equipment, and put on the field. Harry Frank Guggenheim, 39,
- president of the Guggenheim Fund and Ambassador-nominate to Cuba
- was present. He and Lieutenant wanted to fly the plane alone.
- Mr. Guggenheim, a flyer himself, insisted that Lieutenant
- Benjamin Kelsey, who had assisted in the research, occupy the
- front seat, to take control in case accident happened. Piqued,
- daring Lieutenant Doolittle consented. He crawled into the rear
- cockpit, hauled an opaque cloth entirely over himself and
- instruments, which were illuminated, gave the plane the gun. Off
- were the two men. lieutenant Kelsey with his arms resting on the
- gunwales, Lieutenant Doolittle completely shrouded. Fourteen
- miles in all he flew, seeing nothing but his instrument.
- Certainly, assuredly, he made an excellent three-point landing
- within a few feet of his take-off.
-
-