The R-830 was effectively an enlargement of the R-755 with strengthened stressed parts. With a bore and stroke of 5.0 in × 5.5 in (140 mm × 127 mm) the displacement was 831 cu in (13.6 L), takeoff power was around 285 hp (212 kW). The engine features steel cylinders with aluminum-alloy cylinder heads.
Gunston, Bill. World Encyclopedia of Aero Engines. Cambridge, England. Patrick Stephens Limited, 1989. ISBN1-85260-163-9
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August 24, 2023
jacobs, seven, cylinder, cooled, radial, engine, aircraft, manufactured, united, states, production, started, 1935, 830type, radial, enginemanufacturer, jacobs, aircraft, engine, companyfirst, 1935developed, from, jacobs, 755developed, into, jacobs, contents, . The Jacobs R 830 or L 5 is a seven cylinder air cooled radial engine for aircraft manufactured in the United States production started in 1935 1 R 830Type Radial engineManufacturer Jacobs Aircraft Engine CompanyFirst run 1935Developed from Jacobs R 755Developed into Jacobs R 915 Contents 1 Design and development 2 Applications 3 Specifications L 5 3 1 General characteristics 3 2 Components 3 3 Performance 4 See also 5 References 5 1 Notes 5 2 Bibliography 6 External linksDesign and development EditThe R 830 was effectively an enlargement of the R 755 with strengthened stressed parts With a bore and stroke of 5 0 in 5 5 in 140 mm 127 mm the displacement was 831 cu in 13 6 L takeoff power was around 285 hp 212 kW The engine features steel cylinders with aluminum alloy cylinder heads Applications EditBeechcraft Model 18 Beechcraft Staggerwing Fleet 50 Fleetwings Sea Bird Howard DGA 8 Waco S SeriesSpecifications L 5 EditData from FAA TCDS 2 General characteristics Type 7 cylinder air cooled radial piston engine Bore 5 5 in 140 mm Stroke 5 0 in 127 mm Displacement 831 cu in 13 6 L Dry weight 515 lb 234 kg Components Valvetrain 2 valves per cylinder pushrod actuated sodium cooled exhaust valves Fuel system Stromberg NA R7A carburetor Fuel type 73 octane Cooling system Air cooled Reduction gear Direct drive right hand tractorPerformance Power output 285 hp 212 kW at 2 000 rpm at sea level Compression ratio 6 1 Power to weight ratio 0 55 hp lb 0 9 kW kg See also EditRelated development Jacobs R 755 Jacobs R 915Comparable engines Armstrong Siddeley CheetahRelated lists List of aircraft enginesReferences EditNotes Edit Gunston 1989 p 85 FAA TCDS Retrieved 31 January 2009 Bibliography Edit Gunston Bill World Encyclopedia of Aero Engines Cambridge England Patrick Stephens Limited 1989 ISBN 1 85260 163 9External links EditThe Jacobs Engine Nanton Lancaster Society Retrieved from https en wikipedia org w index php title Jacobs R 830 amp oldid 1019208866, wikipedia, wiki, book, books, library,
