August on Guadalcanal 400
s from the
67th FS, USAAF on Guadalcanal in August On August 20, the first Marine aircraft landed at Henderson Field. Part of
Marine Aircraft Group 23 flying from the
escort aircraft carrier USS
Long Island, they included 18 x
F4F Wildcat fighter planes of
VMF-223 led by Major
John L. Smith and 12 x
SBD Dauntless dive bombers of
VMSB-232 led by
Lt. Colonel Richard Mangrum. These warplanes conducted combat missions the following day. They were joined on August 22 by the
U.S. Army's 67th Pursuit Squadron under Major
Dale Brannon, with five Army
P-400s (an "export" version of the
P-39); and on August 24, by 11 x SBD dive bombers from the
aircraft carrier USS
Enterprise because they were unable to land on their carrier, which was damaged in the
Battle of the Eastern Solomons. At the end of August, these warplanes were joined by 19 more Wildcats from
VMF-224 under Major
Robert E. Galer, and a dozen more SBD dive bombers from
VMSB-231, also part of the Marine Air Group 23. This varied assortment of Army, Marine, and Navy pilots and warplanes were the foundation of the Cactus Air Force. The first air-to-air combat for Cactus Air Forces took place on August 21 and ended with mixed results. Japanese Zeros from the Tainan Air Group on a bomber escort mission (the bombers were searching for American carriers south of Guadalcanal) passed over Henderson Field on their way back to Rabaul, and six of these were met by four Cactus Air Force F4F Wildcats at . Major Smith claimed the first air-to-air victory for the CAF, but two other pilots crashed while landing their damaged aircraft, with both of the Wildcats deemed a total loss except for salvaged parts. The Japanese suffered no losses. That same night, an SBD Dauntless blew a tire on take-off, causing it to
ground loop and crash for another aircraft loss. On 24 August, during the naval
Battle of the Eastern Solomons between aircraft carrier forces of Japan and the U.S. east of the Solomon Islands, Japanese
Vice Admiral Chuichi Nagumo sent the Imperial Japanese Navy (IJN) light carrier
Ryūjō ahead of the main Japanese warship force to send an aircraft attack force against Henderson Field. The
Ryūjō mission was likely in response to a request from
Nishizo Tsukahara, the naval commander at Rabaul, for help from the Japanese combined fleet in neutralizing Henderson Field. At 12:20 and northeast of Guadalcanal, the
Ryūjō launched six
"Kate" bombers and 15
A6M Zero fighters to attack Henderson Field in conjunction with an attack by 24
"Betty" bombers and 14 Zero fighters from Rabaul. Unknown to the
Ryūjō force, the Rabaul aircraft encountered severe weather, and returned to their base at 11:30am. The
Ryūjō's aircraft arrived over Henderson Field at 14:23pm, and tangled with 14 Marine Wildcats and four Army P-400s while bombing the airfield. In the resulting engagement, three Kates, three Zeros, and three Marine fighters were shot down... but no damage was done to Henderson Field. Two Marine pilots were killed in the engagement as well as eight Japanese aircrewmen. All of these Japanese aircraft were eventually lost because, while they were attacking Henderson Field, the
Ryūjō was sunk by aircraft from the aircraft carrier USS
Saratoga, forcing the Japanese aircraft to ditch upon returning to the previous location of their carrier. On 31 August, the aircraft carrier USS
Saratoga was torpedoed by a Japanese submarine. Returning to Pearl Harbor for drydock repairs, most of the ''Saratoga's'' aircraft and aircrewmen remained behind at
Espiritu Santo. Admiral McCain planned to send some of these aircraft to reinforce the Cactus Air Force at Guadalcanal.
September SBDs en route to the Japanese seaplane base at
Rekata Bay On 2 September, the U.S. Marine
3rd Defense Battalion began operating an air search
radar at Henderson Field, which, along with reports from the
coastwatchers, helped provide early warning of incoming Japanese warplanes. By 3 September, the day of Geiger's arrival, the CAF consisted of only 64 flyable airplanes. Due to the heavy losses that the CAF had sustained, Admiral McCain decided to immediately deploy the USS ''Saratoga's'' fighter squadrons to Guadalcanal. On 4 September 24 F4Fs of
VF-5 flew from Espiritu Santo to Henderson Field. From 1 September through 8 September the Japanese aviation units at Rabaul concentrated on providing air cover for Japanese Army forces operating along the
Kokoda Track on
New Guinea, during the
Kokoda Track campaign. On 9 September the Japanese resumed air operations against Henderson Field, with the objective of destroying the CAF and isolating the American forces on Guadalcanal. Between 21 August and 11 September, the Japanese raided Guadalcanal a total of ten times, losing 31 aircraft destroyed and seven more heavily damaged, primarily due to the defensive efforts of CAF fighter planes. Most of the Japanese aircrewmen in the destroyed aircraft were killed. During this same time, the CAF Marine Corps fighter squadrons lost 27 aircraft with nine pilots killed. On 12 September 25 Bettys and 15 Zeros from Rabaul raided Henderson Field. aircraft escorted by nine Zeros to find out if the Japanese Army had captured Henderson Field during the night. The Zeros tangled with Cactus Air Force fighters from VMF-223, VMF-224, and VF-5, losing four Zeros along with their pilots. The CAF lost four fighters, two in combat and two to accidents with two CAF pilots killed. An afternoon raid the same day by 27 Bettys and 12 Zeros attacked Henderson Field at 14:00 and again resulted in intense clashes with the Cactus defenders. In the skirmish, two Betty bombers were lost and two were heavily damaged, with three crewmen killed and six captured. Two Wildcats were lost, one each from VMF-212 and VF-5, with both pilots killed. On that same day, two R Area floatplane Zeros from Rekata Bay swept over Lunga Point and shot down a scout plane SBD from VMSB-231, killing both of its crewmen. Another CAF scout SBD from VS-3 ditched in the ocean that afternoon during their search patrol, and both crewmen were lost. Later that day, 12 VS-3 SBDs and six VT-8 TBF Avenger torpedo planes arrived at Henderson Field as reinforcements. On 14 September, the R Area force attacked Henderson throughout the day with a total of 24 float fighters and bombers, losing eight of them with no losses to the CAF. A fighter sweep by seven 2nd Air Group Zeros from Rabaul also attacked Lunga that day, losing one aircraft and pilot. A Japanese reconnaissance aircraft was also shot down over Guadalcanal that day. The only CAF loss was one VMF-223 Wildcat that wrecked on takeoff, seriously injuring the pilot. From 15 to 27 September, bad weather over the Bismarck Islands caused a lull in the air campaign over Guadalcanal, with no Japanese air raids. During this period, both sides reinforced their respective air units. The Japanese delivered 85 fighters and bombers to their air units at Rabaul, while the Americans brought in 23 fighters and bombers to Henderson Field. On 20 September, the Japanese counted 117 total aircraft at Rabaul while the CAF tallied 71 aircraft at Henderson Field.
October On the evening of October 13-14, the Japanese Battleships
Kongō and
Haruna sailed into
Ironbottom Sound and proceeded to shell Henderson Field with
14-inch shells. After the 90-minute bombardment, 41 Americans were killed, and the Cactus Air Force possessed only five SBDs and 7 Wildcats that were still operational.
November The CAF reached its peak of combat power on 12 November with 47 fighters, 23 tactical bombers, and 12 medium bombers. On the morning of November 14, scout planes from the spotted a large number of Japanese troop transports north of
New Georgia headed for Guadalcanal. Every available Cactus aircraft supported by additional carrier aviation and
B-17s flying from
Espiritu Santo attacked the convoy. Four transports were sunk that afternoon and three more were set on fire and turned back north into
New Georgia Sound. Two of these burning transports sank later that evening. After a month and a half of enduring continual shelling at night, the CAF got their first crack at a Japanese battleship on 15 November, after the first night of the
Naval Battle of Guadalcanal, in which
Hiei's steering was disabled. Unable to flee,
Hiei was repeatedly attacked by aircraft from Henderson Field and from the . After suffering numerous direct hits, and being set ablaze, the
Hiei was scuttled by the Japanese. The first aviation unit from another country arrived at Henderson Field on 26 November 1942:
No. 3 Squadron RNZAF, with
Lockheed Hudson light bombers for reconnaissance work.
December On 26 December there were 161 aircraft of all types at Guadalcanal. ==Tactics employed==