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Posted 19 September 2013 - 09:16 PM


All information came from report, except time to altitude in meters was calculated.

Engine: Pratt-Whitney R-1830-47. 1,200 hp. @ take-off.

Meters...mph/fpm/time to altitude.
Feet.....mph/fpm/time to altitude.

FTH: 356 mph. @ ~26,000 ft. (7,925 m.) 

Critical altitude for climb: 2,630 fpm./13,900 ft. (4,237.8 m.)


Range: 1,000 mls./227 mph./145 gallons fuel.

Combat Weight: 6,918 lbs.

Wing Area: 222.7 sq.ft.

Wing Loading: 31,06+lbs./sq.ft.

Power Loading: 5.765 lbs./hp.


Armament: 4 x 0.5 in (2 nose + 2 wing).


Range: 650 mls. (200 lbs. bomb).   1,460 mls. (w/drop tank)


Service Ceiling: 36,000 ft.

Edited by CORSNING, 10 March 2017 - 07:21 PM.



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Posted 11 March 2017 - 06:11 PM

                                                   Republic P-43 Timeline


1938: During this year Seversky Aircraft Corp. initiated work on two successors to the P-35:

     1. AP-2: A conversion of an existing P-35 airframe with the Pratt & Whitney R-1830-9

         engine with a medium altitude supercharger. This evolved into the unsuccessful XP-41.

     2. AP-4: Very similar to the AP-2 but with a turbo-supercharger for high altitude.


12 March 1939: Thirteen AP-4 service test models were ordered by the USAAC as YP-43s.

     These had the following modifications:

     Cockpit was lowered to reduce drag & rear fuselage upper decking was raised.

     Tail wheel leg was lengthened.

     The turbo-supercharger air intake was moved from the port wing root to inside the deeper

          oval shape cowling under the engine.

     Armament was 2 x 0.5 in machine guns in the upper cowl  + 2 x 0.3 in. in the wings.

     Engine: R-1830-35 with a B-2 turbo-supercharger which would allow a top speed of 351 mph.

          at just above 20,000 ft. This would put it in league with the Spitfire I and Bf.109E. 


13 September 1939: The USAAC ordered 80 AP-4Js as P-44s with a P&W R-2180-1 (1,400 hp.).


13 October 1939: The Board at Seversky Aircraft Corporation reorganized the Business and

     renamed it Republic Aviation Corporation.


September 1940: The first YP-43 was received and given the name Lancer. The last YP-43 

     was delivered in April 1941. None had armor or self-sealing fuel cells.

     Engine: P&W R-1830-35:  1,200 hp./T.O.,   1,100 hp./20,000 ft.

     Maximum Speed: 349 mph./25,000 ft.

     Climb: 2,850 fpm./S.L.

     Service Ceiling: 38,000 ft.

     Range: 800 mls.

     Wingspan: 36 ft.,   Length: 27 ft. 11 in.,   Height: 14 ft.,   Wing Area: 223 sq. ft.

     Weights: 5,656 lbs./empty, 7,300 lbs./loaded.


Late 1940: 54 P-43s were ordered by the USAAC as a stop-gap measure due to the delays

     of the P&W R-2800 for the P-47.


January 1941: The Lend-Lease Act was introduced in Congress and enacted in March 1941.


April 1941: President Roosevelt authorized China for lend-lease.


16 May 1941: The first P-43 was delivered. Performance was identical to the YP-43 however

     gross weight had risen to 7,810 lbs. Engine: P&W R-1830-47: 1,200 hp./T.O.,   1,100 hp./

     20,000 ft.


June 1941: The War Department began administering $125,000,000 in aid for China.


30 June 1941: The P-43 was one of the first contracts funded. 125 were ordered with Lend-

     Lease funds for the Chinese Air Force. These were designated P-43A-1.


28 August 1941: The last P-43 was delivered. These aircraft went to the 55th and 14th Pursuit

     Groups in the continental US. They were quickly replaced by P-38s. No USAAF P-43 saw

     combat. They were all used stateside for advanced training.


September 1941: The first P-43A was delivered. Seventy-nine more were to follow. These

     were similar to the P-43 except for a different turbo-supercharger. All dimensions were

     the same as the P-43.

     Engine: P&W R-1830-49: 1,200 hp./T.O.,   1,200 hp./25,000 ft.

     Armament: 2 x 0.5 in. machine guns in upper cowl + 2 x 0.5 in. in wings.

     Maximum Speed: 356 mph./25,000 ft.

     Climb: 15,000 ft./6.0 minutes.

     Service Ceiling: 36,000 ft.

     Range: 650 mls.

     Weights: 5,996 lbs./empty,   7,435 lbs./loaded,   8,480 lbs./maximum take-off weight.


March 1942: P-43A-1 production was completed. 108 of these were sent to China. The rest

     became photo reconnaissance P-43B aircraft.


20 March 1942: Thirty P-43A-1s Arrived in Karachi, Pakistan on their way to China. Thirty

     more arrived by April 1. Dimensions the same as P-43A.


April 1942: The first P-43A-1s were flight tested and turned over to the Chinese pilots to

     be ferried to China.

     Engine: P&W R-1830-57: 1,200 hp./T.O,   1,200 hp./25,000 ft.

     Armament: 4 x 0.5 inch machine guns (same as P-43A)

     Armor and self-sealing fuel tanks: Rudimentary..

     Maximum Speed: 356 mph./10,000 ft.

     Service Ceiling: 36,000 ft.

     External Stores: 41.6 imp. gal. drop tank, 200 lbs. bomb or 6 x 20 lbs. bombs.

     Maximum Ferry Range (No ammunition): 1,450 mls.

     Weights: 5,996 lbs./empty,   7,435 lbs./loaded,   8,480 lbs./maximum take-off weight.


29 April 1942: 69 P-43A-1s had been received at Karachi and eleven of these had been

     delivered to the Chinese. About this time Col. Robert L. Scott (God is My Copilot)

     declared that these aircraft had developed fuel tank leaks that combined with the

     turbo-supercharger beneath the fuselage made them great fire hazards. Temporary

     repairs were made but the aircraft were eventually grounded.


2 July 1942: Troubles on the ferry rout which reported as many as 50% of the P-43A-1s

     were lost and training accidents lead General Mow (Commander of the C.A.F.) to

     declare the P-43A-1 unsuitable for combat use. The senior US aviation officer in

     China, Brigadier General Clayton Bissell wrote to Chaing Kai-Shek about the P-43.


4 July 1942: A US status report advised the Chinese that 87 P-43A-1s had been received,

     58 assembled, 54 tested and the same number delivered to the Chinese at Karachi.


5 July 1942: Commander of the 5th Air Force, Colonel Wang reported 35 P-43A-1s arrived

     at Kunming Field of which 4 crashed, 17 were damaged upon landing and 14 remained

     in flying condition.


6 July 1942: Drummond , a Republic Aviation Corp. Representative, completed the repairs

     to the gas tank seams using Fairprene cement on fourteen P-43A-1s.


17 August 1942: First combat of the P-43A-1. Lt. Burrell Barnum flying from Kwelling to

     Cangyi attempted to shoot down an intruding reconnaissance aircraft (Ki.46?) but

     never got close enough to inflict damage.


Note: P-43As were modified as P-43C photographic reconnaissance aircraft similar to P-43B

     but different photographic fixtures. Six P-43s were converted to P-43Ds which differed only

     in minor details from the P-43C.


August 1942: Two P-43Ds and four P-43A-1s were pulled from the USAAF and transferred

      to the RAAF in Australia. No.1 Photo Reconnaissance Unit at Coomlie, Northern Territory.


November 1942: Two more P-43Ds were pulled from the USAAF and transferred to the RAAF.


Late November 1942: F-4s (P-38s) arrived in China and gradually took over the photo

     reconnaissance roll.


In 1943: The six surviving P-43s in the RAAF were transferred to the USAAF 5th Air Force at

     Charter Towers, Queensland, Australia.


31 July 1943: A message detailing the 14th Air Force fighter locations in China does not list any P-43s.

     The C.A.F. had 19 in their inventory of which 7 were serviceable.


December 1943: The C.A.F. retired the P-43 from combat.


May 1944: the C.A.F. had 20 P-43s in their inventory used for reconnaissance and training.


May 1945: The C.A.F. had 28 P-43s in their inventory.


August 1945: All P-43s were removed from C.A.F. service.

Edited by CORSNING, 31 March 2017 - 07:29 PM.

#3 Rick65


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Posted 12 March 2017 - 03:54 AM

The following link with eight chapters/articles (plus one on the P-44) on the development of the Seversky/Republic line to the P-47 is the most interesting I have found on line, though the informartion more relates to timeline than performance.



The main reference seems to be the following book which I have not seen

Warren M. Bodie, Republic's P-47 Thunderbolt: From Seversky to Victory.
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Posted 12 March 2017 - 01:52 PM



Republic P-43 Lancer Fighter Plane in Chinese Service by Richard Dunn.





Warplanes of the Second World War, Fighters Vol.4 by William Green


American Combat Planes by Ray Wagner.


Note: A special thank you goes out to Rick65 for helping complete the accuracy

     of this timeline.

Edited by CORSNING, 31 March 2017 - 07:31 PM.



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Posted 12 March 2017 - 01:59 PM

Pilot Notes:



      " They (the Japanese) reported that the majority of the enemy were P-43s and that their

fuel tanks were easily punctured making them much easier to shoot down in comparison to


      " This study could not find and occasion when the C.A.F. employed more than 12, nor

the 14th Air Force more than 4 P-43s on a single mission". "...the number of missions flown

was very small."

     " The P-43 was apparently a pleasant aircraft to fly and published accounts by pilots who

flew the aircraft are generally favorable and do not highlight any particular flaw or deficiency

in performance. when the USAAF adopted self sealing fuel tanks as standard in 1941 the

P-43 became a non-combat aircraft in that service."

     " The data assemble in this study suggests the P-43 might have been highly successful if

used more extensively. It demonstrated ability to effect interceptions when P-40s could not' 

and to shoot down Japanese high altitude reconnaissance planes. It had good range

capability and could fly both bomber escort and reconnaissance missions. Its high altitude

performance made it a good complement to the P-40 on escort missions."

Edited by CORSNING, 12 March 2017 - 04:36 PM.

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