On 17 June 1942, Haynes continued on to China to take up an assignment as bomber commander of the China Air Task Force, Tenth Air Force's eastern appendage commanded by Brig.
Gen. Claire L. Chennault.
Scott was left in command for several days before he too was ordered to China to command the first U.S. fighter group in the CATF.
On 22 June Col.
Robert F. Tate (who like Haynes was a bombardment officer) was named to replace Haynes, but he was also in charge of the Trans-India Command in Karachi and remained in that capacity.
Lt.
Col.
Julian M. Joplin, acting at the direction of Naiden, for all practical purposes commanded India-China operations until 18 August.
Tate took actual command on 25 August, when Naiden was forced to return to the United States, although like Naiden he delegated direction of airlift operations to Joplin.
Effective 15 July 1942, the two branches of the India-China Ferry merged into the India-China Ferry Command, an organized component of the Tenth Air Force.

Tate was immediately and severely handicapped when the best pilots and 12 aircraft of the airlift went west to Egypt with Brereton on 26 June.
Despite the use of the 1st Ferrying Group, the buildup of the airlift grew very slowly during the summer monsoon.
Overuse of the small number of aircraft available, spotty maintenance, and a lack of spare parts led to numerous groundings until overhauls could be effected.
In particular the lack of replacement tires and spare engines held down operations even after eight of the C-47s sent to the Middle East returned in August.
For a short period of time engines intended for P-43 fighters of the Chinese Air Force were adapted for use on C-47s but the supply of those proved small.

Although three bases constructed by the British on tea plantations at Chabua, Mohanbari, and Sookerating were declared operational in August 1942, and construction of a fourth began at Jorhat, none were expected to be ready for all-weather operations before November or December because of problems with unskilled indigenous labor and the failure of promised heavy equipment to arrive from the United States.
Throughout the monsoon rains Dinjan remained the chief transport base.
The dismal results of the India-China Ferry to this point led to a proposal in Washington to turn over control of the operation entirely to CNAC, which would place U.S. military personnel in a combat area under foreign civilian control.
Stilwell vigorously and successfully opposed the plan.
He reinforced his position by insisting that CNAC lease its C-53s and crews participating in the airlift to the AAF to assure that they would carry only essential cargo and not commercial activity.
The airlift lost its first aircraft to accident on 23 September 1942, presumably from icing, after which losses of transports increased sharply.

Protection of the aerial supply line became the primary mission of the Tenth Air Force.
When the summer monsoon ended, the Japanese were expected to try to sever the last remaining connection to China, and although 10AF's CATF was adequate for the defense of the eastern end, little had been done to create an antiaircraft defense around the four Assam airfields.
The 51st Fighter Group was nominally responsible for fighter protection, but two of its three squadrons had been stripped of their aircraft and personnel in July to equip the group's third squadron and round out the newly activated 23rd Fighter Group, both in China with the CATF.
The 51st FG remained in Karachi awaiting aircraft and personnel.
Requests for more antiaircraft guns, a weather squadron, and radios and landline communications equipment for an early warning system were immediately approved but went unfulfilled for a variety of reasons.
The India Air Task Force, the western combat force of the Tenth Air Force, was activated 3 October with nine squadrons, none of which was fully operational.
Haynes was promoted to brigadier general and placed in command.
The 51st FG had been re-equipped with P-40s but had trained pilots sufficient for only one squadron, which Haynes sent
On 17 June 1942, Haynes continued on to China to take up an assignment as bomber commander of the China Air Task Force, Tenth Air Force's eastern appendage commanded by Brig. Gen. Claire L. Chennault. Scott was left in command for several days before he too was ordered to China to command the first U.S. fighter group in the CATF. On 22 June Col. Robert F. Tate (who like Haynes was a bombardment officer) was named to replace Haynes, but he was also in charge of the Trans-India Command in Karachi and remained in that capacity. Lt. Col. Julian M. Joplin, acting at the direction of Naiden, for all practical purposes commanded India-China operations until 18 August. Tate took actual command on 25 August, when Naiden was forced to return to the United States, although like Naiden he delegated direction of airlift operations to Joplin. Effective 15 July 1942, the two branches of the India-China Ferry merged into the India-China Ferry Command, an organized component of the Tenth Air Force.
Tate was immediately and severely handicapped when the best pilots and 12 aircraft of the airlift went west to Egypt with Brereton on 26 June. Despite the use of the 1st Ferrying Group, the buildup of the airlift grew very slowly during the summer monsoon. Overuse of the small number of aircraft available, spotty maintenance, and a lack of spare parts led to numerous groundings until overhauls could be effected. In particular the lack of replacement tires and spare engines held down operations even after eight of the C-47s sent to the Middle East returned in August. For a short period of time engines intended for P-43 fighters of the Chinese Air Force were adapted for use on C-47s but the supply of those proved small.
Although three bases constructed by the British on tea plantations at Chabua, Mohanbari, and Sookerating were declared operational in August 1942, and construction of a fourth began at Jorhat, none were expected to be ready for all-weather operations before November or December because of problems with unskilled indigenous labor and the failure of promised heavy equipment to arrive from the United States. Throughout the monsoon rains Dinjan remained the chief transport base. The dismal results of the India-China Ferry to this point led to a proposal in Washington to turn over control of the operation entirely to CNAC, which would place U.S. military personnel in a combat area under foreign civilian control. Stilwell vigorously and successfully opposed the plan. He reinforced his position by insisting that CNAC lease its C-53s and crews participating in the airlift to the AAF to assure that they would carry only essential cargo and not commercial activity. The airlift lost its first aircraft to accident on 23 September 1942, presumably from icing, after which losses of transports increased sharply.
Protection of the aerial supply line became the primary mission of the Tenth Air Force. When the summer monsoon ended, the Japanese were expected to try to sever the last remaining connection to China, and although 10AF's CATF was adequate for the defense of the eastern end, little had been done to create an antiaircraft defense around the four Assam airfields. The 51st Fighter Group was nominally responsible for fighter protection, but two of its three squadrons had been stripped of their aircraft and personnel in July to equip the group's third squadron and round out the newly activated 23rd Fighter Group, both in China with the CATF. The 51st FG remained in Karachi awaiting aircraft and personnel. Requests for more antiaircraft guns, a weather squadron, and radios and landline communications equipment for an early warning system were immediately approved but went unfulfilled for a variety of reasons. The India Air Task Force, the western combat force of the Tenth Air Force, was activated 3 October with nine squadrons, none of which was fully operational. Haynes was promoted to brigadier general and placed in command. The 51st FG had been re-equipped with P-40s but had trained pilots sufficient for only one squadron, which Haynes sent
The Hump