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| Curtiss P-40F Warhawk "STUD" a P-40F-20-CU of the 325th FG ("Checkertail Clan"). Flown by Group CO Lt. Col. R.L. Baseler, Overall Matt Black with Gloss Red and Yellow. |
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| FS2002/2004 | |
| JRLucariny FSDS V2.25 Model | |
| Download | |
| 2003/2004 | |
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| Curtiss P-40F Warhawk "STUD" a P-40F-20-CU of the 325th FG ("Checkertail Clan"). Flown by Group CO Lt. Col. R.L. Baseler, Overall Matt Black with Gloss Red and Yellow. |
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| FS2002/2004 | |
| JRLucariny FSDS V2.25 Model | |
| Download | |
| 2003/2004 | |
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In 1941, a P-40D (s/n 40-360, c/n 13235) was fitted with a 1,300 hp British Rolls-Royce Merlin 28 engine. The aircraft was designated XP-40F, Model 87-B3 and first flew on the 30th June 1941. The main noticeable difference was the deletion of the top air scoop and different exhaust stacks. The new aircraft had an improved climb performance, higher ceiling, and faster speeds. During the production of the 'F' models many modifications were undertaken and the first 699 of 1311 aircraft had no dash numbers. |
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The P-40F-5 model and later had a lengthened fuselage by 20 inches which improved directional stability. The P-40-10 had a simple modification that changed the cowl flaps to a manual operation verses the electronic operation on the previous models. The P-40F-15 was a winterized version, and the P-40F-20 had a revised oxygen system. |
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At a later date, some of the P-40F aircraft that were used for training operations had the Merlin engines removed and replaced with the Allison. These aircraft were designated P-40R's, but records are unclear on the amount of aircraft converted, and there may have been anywhere from 123 to 600 fighters modified. The reason for this change of powerplant was the demand for the more powerful Merlin being required for other, more combat effective aircraft. 150 P-40F's were delivered to the Royal Air Force under Lend-Lease. These aircraft were designated Kittyhawk II's, with some of these repossessed for U.S. forces in North Africa 1942-43. Link |
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The P-40F and later versions were known by the name *Warhawk* in US service. The first 699 planes of the P-40F series had no dash numbers, since the production block designation system was not yet in effect. The dash numbers were first used with the P-40F-5-CU model, which introduced a fuselage elongated from 31 feet 2 inches to 33 feet 4 inches in order to improve directional stability. This longer fuselage was retained in all later P-40 versions. The P-40F-10-CUs had manual instead of electrically-operated cowl flap controls. The P-40F-15-CUs had winterizing equipment, and the P-40F-20-CUs had a revised oxygen flow system for the pilot. A radio mast was fitted to late production P-40Fs. |
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The P-40F was powered by a Packard-built Merlin V-1650-1 twelve-cylinder Vee liquid-cooled engine rated at 1300 hp for takeoff and 1120 hp at 18,500 feet. Maximum speed was 320 mph at 5000 feet, 340 mph at 10,000 feet, 352 mph at 15,000 feet, and 364 mph at 10,000 feet. An altitude of 10,000 feet could be attained in 4.5 minutes, and an altitude of 20,000 feet could be reached in 11.6 minutes. Maximum range was 700 miles at 20,000 feet (clean), 875 miles (one 43 Imp gal drop tank), and 1500 miles (141.5 Imp gal drop tank). Service ceiling was 34,400 feet. Weights were 6590 pounds empty, 8500 pounds normal loaded, and 9350 pounds maximum. Dimensions were 37 feet 4 inches wingspan, 33 feet 4 inches length (P-40F-5-CU and later), 10 feet 7 inches high, 236 square feet wing area. Armament consisted of six 0.50-inch machine guns in the wings. |
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One hundred and fifty P-40Fs were supplied to the RAF under Lend-Lease. The RAF assigned them the name Kittyhawk II. The Kittyhawk IIs were offset from USAAF allocations 41-13697/14599. RAF serials were FL219/448. Unfortunately, P-40Ls were also mixed in with this lot with no mark distinctions, so it is impossible to tell which planes were Fs and which were Ls by merely looking at the RAF serial number. In the event, very few of these aircraft actually served with the RAF. |
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FL273 and FL369-448 were returned to the USAAF for use in North Africa in 1942/43. FL230/232, 235, 236, 239/240 were lost at sea before reaching the RAF. FL263, 270, 276, 280, 383, 305, and 307 were handed over to the Free French, who operated them in North Africa. 100 were transferred to the USSR. The designation YP-40F was unofficially assigned to P-40F Ser No 41-13602 used for experimental tests of the cooling system and the tail rudder. The coolant system was moved aft in several different configurations, including a mounting fitted inside a thickened wing-root section. |
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USAAF serials of the P-40F were as follows: 41-13600/13695 Curtiss P-40F Warhawk 41-13696 Curtiss P-40F Warhawk (order cancelled) 41-13697/14299 Curtiss P-40F Warhawk 41-14300/14422 Curtiss P-40F-5-CU Warhawk 41-14423/14599 Curtiss P-40F-10-CU Warhawk 41-19733/19932 Curtiss P-40F-15-CU Warhawk 41-19933/20044 Curtiss P-40F-20-CU Warhawk |
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A number of P-40Fs were selected at random, withdrawn from operational service, and fitted with Allison V-1610-81 in place of their original Merlins. These planes were intended for training duties. These were redesignated P-40R-1. Similar conversions from the P-40L were designated P-40R-2. Army records report that over 600 such conversions were made, but only 70 such conversions can be confirmed by serial number. Link |
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P-40F Specifications:
Span 37 ft 4 in Length 33 ft 4 in Height 12 ft 4 in Wing Area 236 sq ft Empty Weight 6,590 lb Loaded Weight 9,350 lb
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Max. Speed 364 mph Cruise Speed 290 mph Ceiling 33,500 ft Rate of Climb 3,250 fpm Range 575 miles Powerplant Packard V-1650-1 of 1,300 hp |
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JRLucariny PANEL |
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Curtiss P-40F JRLucariny FS2002/2004 model |
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FDE Curtiss P-40F CFS2 by Krzysztof Malinowski |
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DRAWINGS ”CURTIS P-40 in action” Squadron/sirnal publications |
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Canopy Open SHIFT+E Close SHIFT+E |
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”CURTIS P-40 in action” Squadron/sirnal publications AIRCRAFT NO. 26 |
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