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Due to an increased interest in Grandpa Cowley's WWII experiences flying over the "Hump" in India, and questions I couldn't answer as to why and how India was involved, I was prompted to do a little research.  This led me to a lengthy conversation this morning with 87 year old J. Vineyard who was a member of the China Burma India Hump Pilots Association.  He wrote the following article on their website of which I have inserted a few paragraphs but it can be found in its entirety at http://www.cbihpa.org/history.html

'FLYING THE HUMP'

A FACT SHEET FOR THE HUMP OPERATION DURING WORLD WAR II

UNITED STATES ARMY AIR FORCES (USAAF)
CHINA-BURM-INDIA (CBI) THEATER OF OPERATIONS

"The Hump" was a high altitude military aerial supply route between the Assam Valley in northeastern India, across northern Burma, to Yunnan province in southwestern China, flown during World War II. This operation was the first sustained, long range, 24 hour around the clock, all weather, military aerial supply line in history. It was a start-from-scratch operation. There was no precedent for it.

In April, 1942, China lost the Burma Road, its last remaining supply line to the outside world, due to the invasion of Burma by Japanese troops. The Road extended 425 miles from Lashio, Burma to Kunming, China. China's eastern seaports had previously been closed by Japanese invasion troops and the Japanese Navy.

The United States determined a continuous flow of military supplies into China had to continue to enable the Chinese Army, and the U. S. Army 14th Air Force (formerly the American Volunteer Group (AVGs) and the China Air Task Force) in China, to remain effective and keep pressure on Japanese occupational troops, thereby denying their use as fighting forces in other parts of the CBI or south Pacific. The only means left for getting supplies to China was by air. Due to the presence of Japanese Army and Air Force in northern Burma, the only available air route to China was via the Hump route.

Northern Burma was largely uninhabited except for wild native tribes. In addition to mountains, it was covered by tropical rain forest with trees reaching over 150 feet in height. River gorges of the Salween, Mekong and Yangtze Rivers exceeded 10,000 feet in depth. Uncivilized headhunter tribes existed on the southern rim of the main Himalayas in China.

Severe weather existed on the Hump almost year around. The monsoon season, with heavy cloudiness, fierce rain and embedded severe thunderstorms with turbulence severe enough to damage aircraft, existed from around May into October of each year. The late fall and winter flying weather was better with many VFR days. However, heavy ground fogs, with ground visibilities down to zero/zero, occurred almost nightly during the early winter, and severe thunderstorms still occurred over the route on an irregular basis. Winter winds aloft were extreme, often exceeding 100MPH. Most night flying had to be done by instruments from takeoff due to lack of any ground or horizon references, until well into western China.

Early flights were basically daylight operations that were often forced to the northern portion of the Hump due to the presence of Japanese fighter aircraft to the south flying out of Myitkyina, Burma. Terrain heights in this area generally averaged around 15,000 to 16,000MSL. This was the high Hump.

The Hump initially contained few enroute navigational aids. Enroute communications were poor, and air traffic control, except for local control towers, did not exist. Aeronautical charts were very unreliable and weather reporting was very poor. These conditions slowly improved after the arrival of the U. S. Army Airways Communications Service (AACS) in August 1943.

Homing beacons existed at each airfield in India and China. These homers were severely affected by weather, night effect, and static electricity that built up on aircraft. Airport instrument approaches were normally conducted to airports on homing beacons and were non-precision approaches.

Living conditions in the Assam Valley were primitive. Personnel generally lived in tents or bamboo bashas. A few lived in tea plantation bungalows or in bungalow outbuildings. During the monsoon season bases were seas of mud. Sidewalks and tent foundations had to be elevated to stay above standing water. Temperatures during the monsoon season were extremely hot with very high humidity. Clothes and shoes mildewed within days. Food was government issued C-ration. Personnel did not eat off base for sanitary reasons. Malaria and dysentery were prevalent diseases. Water could be consumed only after purification by iodine.

Maintenance of aircraft was a serious problem due to a shortage of parts and poor working conditions. The need for maintenance was high due to the need to fly aircraft well above their normal operating limits. Work during the monsoon season mostly had to be done at night due to the heat. There were no hangers for aircraft maintenance. All maintenance work had to be done in the aircraft parking areas. Make shift covers had to be placed over engines to complete engine work during the rainy season.