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CURTISS P-40B/C PERFORMANCE


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#1 CORSNING

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Posted 19 February 2014 - 07:51 PM

CURTISS (P-40B) TOMAHAWK IIA/IIB

 

WAR DEPARTMENT, AIR CORPS, MATERIEL DIVISION

MEMORANDUM REPORT ON

Pursuit Interceptor (P-40B), A.C. No. 41-5205  RLF-BC

Date  April 26, 1941

 

SUBJECT: Flight Test at Manufacturer's Plant

 

The following information is from:

1. The above report.

2. OFFICIAL PERFORMANCE SUMMARY of the P-40B

3. PERFORMANCE CHART (graph) based on the OFFICIAL PERFORMANCE SUMMARY

4. A letter from Wright Field dated June 20, 1941 listing the performances of the YP-38, P-38E, YP-39, P-39E, P-40 and P-40B.

 

Altitude/Speed/Climb

Meters/mph/fpm/minutes to altitude

S.L.......302/2900

  1,000.313/2955/  1.15

  2,000.324/3011/  2.18

  3,000.335/3067/  3.25

  4,000.346/2780/  4.45

  5,000.351/1970/  5.88

  6,000.348/1570/  7.8

  7,000.340/1175/10.2

  8,000.329/  780/13.45

  9,000.313/  450/19.0

Feet---------------------

  5,000.319/2985/  1.70

10,000.336/3070/  3.35

15,000.352/2160/  5.11

20,000.348/1520/  7.90

25,000.336/  935/12.00

30,000.310/  360/20.30

 

Full throttle height: 352 mph./4,572 m. (15,000 ft.)

 

Critical altitude low: 3,070 fpm./3,048 m. (10,000 ft.)

Critical altitude high: 2,610 fpm./4,494.8 m.  (14,750 ft.)

Switch military/normal power: 2,160 fpm./4,572 m. (15,000 ft.)

 

Ceilings

Combat: 24,250 ft.

Operational: 28,750 ft.

Service: 32,400 ft. reached in 32.0 minutes.

 

Range: 855 mls./ 160 gallons of fuel.

 

Armament (standard): 2 x 0.5in./200 rpg. upper cowl. + 2 or 4 x 0.3 or 0.303in./250 rpg. in wings.

 

Wing Loading: 28.97-lbs./sq.ft.

 

Power Loading: 6.271-lbs./hp.

 

Combat Weight: 6,835 lbs.

 

Engine: Allison V-1710-33 (-C15): 1,040 hp./3,000 rpm./take-off. 1,090 hp./3,000 rpm./13,200 ft. and had an 8.8:1 supercharger gear.

NOTE: See NORTH AMERICAN NA-73/P-51 MUSTANG PERFORMANCE TIMELINE's first post to see what engine performances were used in the field for the early Allison with the 8.8(8.77):1 gear.

 

Turn Time (P-40C) U.S.S.R.: 18.0s seconds/ 360 degrees.

 

 

America's Hundred Thousand has a graph showing roll rate for the Tomahawk:

 

Speed:       175     200     225     250     275     300     325     350     360     375     400     425   mph.

Roll Rate:     70       80       89       98     107     116     125     135     136     112       95       84   deg./sec.


Edited by CORSNING, 20 December 2015 - 02:03 PM.


#2 CORSNING

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Posted 19 February 2014 - 08:04 PM

P-40C IN RUSSIAN SERVICE

 

http://www.rkka.es/a..._024/02_024.htm

 

Test Weight: 7,475 lbs.

 

Turn Time: mid 18.0s.

 

Altitude/Speed

Meters/mph

S.L.....276.5

1,000.290

2,000.304

3,000.317

4,000.329

5,000.338

6,000.332

7,000.323

8,000.312

 

Maximum: 338 [email protected] 16,270 ft.


Edited by CORSNING, 19 February 2014 - 08:08 PM.


#3 CORSNING

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Posted 31 August 2017 - 06:42 PM

The following comes from Osprey Aircraft of the Aces 103, Ki-27 'Nate' Aces.

 

Page 66:

     " Although the presence of the AVG was known to Japanese intelligence,

the pilot of the 77th were unaware that their opposition might include Hawk

81A-2s, which they identified in their combat reports as 'Supittofaia'-Spitfires.

In the aerial fighting over Burma, most JAAF pilots came to consider the

AVG their strongest opponents, noting their aggression. They were also

impressed with the diving speed of the Hawk 81A-2s when compared to the

RAF Buffalo and, later, Hurricane I/II."






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