|
Ayres Thrush S2R-T Thrush Aircraft Thrush
 S2R-G10
The S2R Series is a fixed undercarriage low-wing single-engine tailwheel configuration agricultural aircraft of all-metal construction with welded steel-tube fuselage. The hopper is located forward of the cockpit, and the aircraft is available in single or dual (tandem) cockpit configurations. The S-2R model was developed by Rockwell from the S-2D by widening the fuselage from 38” to 46” to accept a larger 400 US gallon hopper, to be able to carry a greater volume of low density materials used by Rice growers, and adding flaps.
Type Acceptance Certificate FAA Type Certificates A3SW and A4SW.
In 1977, the Ayres Corporation, of Albany, Georgia, purchased the Thrush Commander line and continued to build the S2R, with the same constructors serial sequence, finally ending at 2582R. Previously the type certificate had been held by Snow Aeronautical Company (up to February 18, 1970), North American Rockwell Corporation (up to April 3, 1973), and Rockwell International (up to November 28, 1977) .
A new sequence was started by Ayres with the 750 hp P & W PT6A-34AG with constructors numbers beginning with 6001, and incorporating one major change, the fitting of a 500 US gallon hopper. The 5000 sequence was used for the 100 or so 800 hp Wrights built by Rockwell.
The Turbo Thrush S2R-T34 was then developed for Ayres by installation of a PT6A engine under STC, the first such turbine application for an agricultural aircraft. This was type certificated under A3SW in the Normal Category, but the manufacturer advises virtually none have been delivered in that category. All subsequent S2R derivatives (basically different turbine engine options) were only certificated in the Restricted Category under A4SW, including several using the TPE331 family (these were popular because overhauled engines were much less expensive than a new PT6A). Some engine and propeller options for the S2R-T34, and the Dual Cockpit trainer option originally approved by STC, are only approved in the Restricted Category.
Once Ayres had taken over, one of the new versions was named the Bull Thrush, powered with a 1200 hp Wright R-1820-97 and fitted with a 500 US gallon hopper. One of the new features was a Dual Cockpit variant, being denoted by a DC at the end of the constructor’s number. From this time Ayres were to start a whole new series of constructors numbers, prefixed by S2R, followed by engine model fitted and then a number, in most cases, starting at -001. As example, S2R-1340-... (600 hp), S2R-1820-... (1200 hp), S2R-RS3-... (PZL R83, 595 hp) and S2R-T34-... (750 hp).
The new turbine models incorporated a wing extension from a span of 44 feet, 5 inches to 47 feet, 6 inches with a wing area of 350 square feet. The wing extensions can also be fitted to the smaller round engined versions, as well as adding an all metal tailplane. The Ayres tail version being the same outline as the tube and fabric original, and another is being offered by Weatherley.
A further development by Ayres was the Model S2R-T65, which was fitted with a larger 500 US gallon hopper and 1300 shp PT6A-65 engine. This had an increased span wing but was initially approved at the original 6000 lb. gross weight. Later an improved wing with steel spar webs was tested and the S2RHG-T65 (High Gross) version was certificated with a MCTOW of 10,500 lb. Thrush also certificated a similar high gross S2RHG-T34 version with a 550 US gallon hopper and a MCTOW of 9500 lb. However Report ER-568 stated that performance was marginal and only a few were produced. Report ER-538 states that all aircraft manufactured by Thrush since 2003 have been produced to a common fuselage and wing configuration.
Since 1991, some of the T34 aircraft have had a PT6A-41AG of 850 hp fitted and, likewise, the T15 line has had one PT6A-27 of 680hp installed. Another version available is the T45, with its own c/n sequence fitted with a PT6A-45 of 1173hp
In the eighties, the US Government required a long range sprayer for anti-narcotics work. Ayres developed the T34 model and fitted it with the PT6A-65A of 1376 hp, self-sealing fuel tanks, and armour plate around the pilots seat. Up until December 1990, eight had been built with the unusual T65-1X sequence. From October 1987, Dual Cockpit versions entered the production line, beginning with T65-001DC and all going to the US Government. The first to a civil operator was 011DC, going to Gwydir Air as VH-NFH in 1990. This was re-powered by a PT6A-65AG of 1230 hp turning a five blade prop. Not only is it quieter, the length has been increased to 34 feet and the hopper has been increased to hold 625 US gallons. In 1994, the T65s were back in production, with several being delivered to South Africa.
Thrush Aircraft has exclusively teamed with General Electric to produce the Thrush 510G powered by the GE H80 turbine engine. The H80 provides increased temperature margins to enhance hot-day takeoff performance and high-altitude cruise speeds. GE chose Thrush to launch this new engine.
Ayres S2R-T Turbo Thrush
S2R-T34
Engine: Pratt & Whitney Canada PT6A-34, -34AG, -36, -41AG, -41, -42
Propeller: Hartzell HC-B3TN-3C or -3D / T-10282 or T-10282(N)+4
MCTOW: 6000 lb / 2721 kg
Max. No. of Seats: 1 [2 with Dual Cockpit]
S2R-T34 Turbo Thrush S2R-T660
Engine: P&W PT6A-60AG, 1050 shp
MAUW: 12,500 lbs
Empty wt: 5150 lbs
Hopper Cap: 660 USG.
Thrush Aircraft Thrush 510P
Engine: Pratt & Whitney PT6A-34AG, 750 shp Length: 32 feet 4 inches / 9.854 meters Height : 9 feet 4 inches / 2.843 meters Wing Span: 47 feet 6 inches / 14.478 meters Wing Area: 365 square feet / 33.9 square meters Width of Main Landing Gear: 9 feet / 2.74 meters Fuel Capacity: 228 USG / 863 liters Empty Weight: 4,900 lb / 2,223 kilograms Typical Operating Weight: 10,500 lb / 4,763 kilograms Hopper Capacity (Dry): 66 cubic feet / 1.87 cu. meters Hopper Capacity (Liquid spray system): 510 USG / 1930 liters Working Speeds: 90-150 mph / 145-241 kph Stall Speed as Usually Landed: 57 mph / 92 kph Never Exceed Speed: 159 mph / 256 kph Sea Level Rate of Climb at 6,000 lb: 1,075 fpm / 327.7 mpm Sea Level Rate of Climb at 10,500 lb: 666 fpm / 203 mpm Take-Off Distance at 10,500 lb: 1,530 feet / 466 meters Landing Distance as Usually Landed: 600 feet / 182.8 meters Landing Distance as Usually Landed w/Reverse: 400 feet / 121.9 meters Fuel Consumption: 45-50 USgph / 170-189 lt/hr Cruising speed 55% power: 150 mph / 241 kph Ferry Range at 45% power, 135 mph at 7,500 ft: 770 miles / 1,238 kilometers Wing spar life: 29,000-hour Thrush Aircraft Thrush 510G Engine: General Electric H80 Length: 32 feet 4 inches / 9.854 meters Height: 9 feet 4 inches / 2.843 meters Wing Span: 47 feet 6 inches / 14.478 meters Wing Area: 365 square feet / 33.9 square meters Width of Main Landing Gear: 9 feet / 2.74 meters Fuel Capacity: 228 USG / 863 liters Empty Weight: 4,700 pounds / 2,132 kilograms Typical Operating Weight: 10,500 pounds / 4,763 kilograms Hopper Capacity (Dry): 66 cubic feet / 1.93 cubic meters Hopper Capacity (Liquid spray system): 510 USG / 1930 liters Working Speeds: 90-150 mph / 145-241 kph Stall Speed as Usually Landed: 55 mph / 89 kph Never Exceed Speed: 188 mph / 303 kph Sea Level Rate of Climb at 6,000 lbs: 1,400 fpm / 426.7 mpm Sea Level Rate of Climb at 10,500 lbs: 680 fpm / 207.3 mpm Take-Off Distance at 10,500 lbs: 1,339 feet / 408 meters Landing Distance as Usually Landed: 550 feet / 167.6 meters Landing Distance as Usually Landed w/Reverse: 350 feet / 106.7 meters Fuel Consumption: 45-50 USGph / 170-189 lt/hr Cruising Speed at 55% Power: 159 mph / 256 kph Ferry Range at 45% power 135 mph at 7,500 feet: 800 miles / 1,287 kilometers Thrush Aircraft Thrush 550P Engine: Pratt & Whitney PT6A-60AG Length: 32 feet 4 inches / 9.854 meters Height: 10 feet / 3.05 meters Wing Span: 47 feet 6 inches / 14.478 meters Width of Main Landing Gear: 10 feet / 3.05 meters Fuel Capacity: 228 USG / 863 liters Empty Weight: 5,400 pounds / 2,450 kilograms Typical Operating Weight: 10,500 pounds / 4,763 kilograms Hopper Capacity (Dry): 74 cubic feet / 2.10 cubic meters Hopper Capacity (Liquid): 550 USG / 2,082 liters Working Speeds: 90-150 mph / 45-241 kph Stall Speed Flaps/No Flaps: 84/88 mph / 135/142 kph VNE: 220 mph / 355 kph Sea Level Rate of Climb at 10,500 lbs: 750 fpm / 229 mpm Take-Off Distance at 10,500 lbs: 1,077 feet / 328 meters Landing Distance as Usually Landed: 600 feet / 182.8 meters Landing Distance as Usually Landed w/Reverse: 400 feet / 121.9 meters Fuel Consumption: 65-70 gph / 246-265 lph Cruising Speed at 55% Power: 150 mph / 241 kph Ferry Range at 55% power 150 mph at 7,500 feet: 648 miles / 1,043 kilometers Ferry range at 45% power: 770 sm (1,238 km) Thrush Aircraft Thrush 710P Engine: Pratt & Whitney PT6A-65AG Length: 35 feet 5 inches / 10.787 meters Height: 10 feet 4 inches / 3.14 meters Wing Span: 54 feet / 16.46 meters Tread Width: 10 feet 4 inches / 3.14 meters Fuel Capacity: 228 USG / 863 liters Empty Weight: 6,600 pounds / 2,994 kilograms Typical Operating Weight: 14,150 pounds / 6,148 kilograms Hopper Capacity (Dry): 95 cubic feet / 2.69 cubic meters Hopper Capacity (Liquid}: 710 gallons / 2,687 liters Working Speeds: 90-150 mph / 145-241 kph Stall Speed Flaps/No Flaps: 90/94 mph / 145/151 kph VNE: 220 mph / 355 kph Sea Level Rate of Climb at 14,150 lbs: 850 fpm / 259 mpm Take-Off Distance at 14,150 lbs: 1,598 feet / 487 meters Landing Distance as Usually Landed: 600 feet / 182.8 meters Landing Distance as Usually w/Reverse: 400 feet / 121.9 meters Fuel Consumption: 80-85 gph / 303-322 lph Cruising Speed at 55% Power: 150 mph / 241 kph Ferry Range at 55% power 150 mph at 7,500 feet: 515 miles / 828 kilometers
|
