P-36 Flight Tests

WAR DEPARTMENT
AIR CORPS, MATERIEL DIVISION
Wright Field, Dayton, Ohio
October 31, 1940

MEMORANDUM REPORT ON
Pursuit 1-Engine P-36A, A.C. No. 38-180

Subject:      Propeller Tests
Section:      Flying Branch
Serial No:   PHQ-M-19-1152-A

SUMMARY

1.Purpose
 
  a.Propeller tests on Pursuit 1-engine (P-36A) airplane, equipped with R-1830-17 engine and 3-bladed constant speed propeller, blade design No. 101330. Flown with full gas and oil load. Wheels up, wing flaps neutral, carburetor cold, mixture automatic. Radio antenna in place. Synchronised gun openings covered.
 
2.Factual Data
 
  a.Speeds at altitudes, cowl flaps closed:

 (1)At 5000 ft.:


True Speed MPHR.P.M.B.H.P

276   25501045
268   2550  950
258.52550  850
247.52550  750

 (2)At 10,000 ft.:


True Speed MPHR.P.M.B.H.P

294.525501045
287.52550  950
278   2550  850
268.52550  750

 (3)At 15,000 ft.:


True Speed MPHR.P.M.B.H.P

291   2550  825
285   2550  750
272.52550  650
264   2550  600

  b.Climb data, cowl flaps wide open:


 Altitude.
Ft.
Rate of Climb
Ft/Min
R.P.M.BHPTrue speed
MPH

 10,00025002550930150.5
 15,00018752550760157   
 20,00013102550615163   
 25,000  7952550485169.5

For the full report see HERE


WAR DEPARTMENT
AIR CORPS, MATERIEL DIVISION
Wright Field, Dayton, Ohio
January 7, 1941

MEMORANDUM REPORT ON
Pursuit 1-Engine P-36A, A.C. No. 38-180

Subject:      Propeller Tests
Section:      Flying Branch
Serial No:   PHQ-M-19-1180-A

SUMMARY

A.Purpose
 
  1.Propeller tests using torque meter on Pursuit 1-engine (P-36A) airplane equipped with R-1830-17 engine and 3-bladed constant speed propeller, blade design No. 101330. Flown with full gas and oil load. Wheels up, wing flaps neutral, carburetor cold, mixture automatic, radio antenna in place. Synchronised gun openings covered.
 
B.Test Results
 
  1.High speed tests, cowl flaps closed:


 Altitude.
Ft.
R.P.M.True speed
MPH
Torque Meter
BHP
Throttle

   5,0002550281   1045Part
 10,0002550295.51010Wide
 15,0002550295     850Wide
 20,0002550285     695Wide
 25,0002550280     535Wide

  2.Climb data, cowl flaps wide open:


 Altitude.
Ft.
Rate of Climb
Ft/Min
R.P.M.Torque Meter
BHP
True speed
MPH

 10,00025802550945150   
 15,00019802550755155.5
 20,00014202550600161.5
 25,000  8802550500167   

For the full report see HERE


WAR DEPARTMENT
AIR CORPS, MATERIEL DIVISION
Wright Field, Dayton, Ohio
May 16, 1941

MEMORANDUM REPORT ON
Pursuit 1-Engine P-36A, A.C. No. 38-180

Subject:      Propeller Tests
Section:      Flying Branch
Serial No:   PHQ-M-19-1245-A

SUMMARY

A.Purpose
 
  1.Propeller tests using torque meter the P-36A airplane equipped with R-1830-17 engine and 3-bladed constant speed propeller, blade design No. 89306-22s. Flown with full gas and oil load. Wheels up, wing flaps neutral, carburetor cold, mixture automatic, radio antenna in place, synchronised gun openings covered.
 
B.Test Results
 
  1.High speed tests, cowl flaps closed:


 Altitude.
Ft.
R.P.M.True speed
MPH
Torque Meter
BHP
Throttle

   5,0002550280   1045Part
 10,0002550292.51000Wide
 15,0002550290.5  845Wide
 20,0002550287     700Wide
 25,0002550279     560Wide

  2.Climb data, cowl flaps wide open:


 Altitude.
Ft.
Rate of Climb
Ft/Min
R.P.M.Torque Meter
BHP
True speed
MPH

 10,00026002550945150
 15,00019602550780155
 20,00013652550645160
 25,000  8402550550166

For the full report see HERE


WAR DEPARTMENT
AIR CORPS, MATERIEL DIVISION
Wright Field, Dayton, Ohio
June 19, 1941

MEMORANDUM REPORT ON
Pursuit 1-Engine P-36A, A.C. No. 38-180

Subject:      Propeller Tests
Section:      Flying Branch
Serial No:   PHQ-M-19-1258-A

SUMMARY

A.Purpose
 
  1.Check on propeller tests using a modified torque meter nose section to prevent oil congealing in the lines at high altitudes. Airplane equipped with R-1830-17 engine and 3-bladed constant speed propeller, blade design No. 101330. Flown with full gas and oil load. Wheels up, wing flaps neutral, cowl flaps closed, carburetor cold, mixture automatic, radio antenna in place. Synchronised gun openings covered.
 
B.Test Results
 
  1.High speed tests:


 Altitude.
Ft.
R.P.M.True speed
MPH
Torque Meter
BHP
Throttle

   5,0002550280   1045Part
 10,0002550292   995Wide
 15,0002550292     845Wide
 20,0002550286     700Wide
 25,0002550276     555Wide

For the full report see HERE


WAR DEPARTMENT
AIR CORPS, MATERIEL DIVISION
Wright Field, Dayton, Ohio
September 25, 1939

ENGINEERING SECTION MEMORANDUM REPORT ON
Curtiss P-36B Airplane, A.C. No. 38-20

Serial No:   19-430-1001-A

SUMMARY

1.Object -- High speed of Curtiss P-36B with and without camouflage. Airplane equipped with Pratt and Whitney R-1830-23 engine rated 950 hp at 2700 rpm and 1100 hp at 2700 rpm for take-off, three-bladed constant speed propeller, Dwg. No. 512CC1.5 range 20° to 45° at 42" radius. Landing gear retracted, carburetor cold, cockpit cabin and ventilator closed, wing flaps neutral, cowl flaps closed. Airplane flown with full gas and oil load. Weight of camouflage paint was 7.0 lbs.
 
2.Test results at 950 bhp at 2700 rpm at 17,000 ft.:

a.Speed without camouflage was 317.5 mph.
 
b.Speed when camouflaged with water color paint was 316.0 mph.

For the full report see HERE


Supplemental

Detail Specifications for Curtiss Hawk 75-A Airplane
Handbook of Operation and Flight Instructions for the Models P-36A and P-36C Pursuit Airplanes

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