# Franklin O-200 > Mediated Wiki article. Canonical URL: https://mediated.wiki/source/Franklin_O-200 > Markdown URL: https://mediated.wiki/source/Franklin_O-200.md > Source: https://en.wikipedia.org/wiki/Franklin_O-200 > Source revision: 1352715315 > License: Creative Commons Attribution-ShareAlike 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/) American air-cooled aircraft engine of the early 1940s O-200/4AC-199 Franklin O-200 engine on display at the Hiller Aviation Museum Type Piston aircraft engine National origin United States Manufacturer Franklin Engine Company First run 1941 The **Franklin O-200** (company designation **4AC-199**) was an American air-cooled aircraft engine of the early 1940s. The engine was of [four-cylinder, horizontally-opposed layout](/source/Flat-four_engine) and [displaced](/source/Engine_displacement) 200 cu in (3 L). The power output ranged between 65 hp (48 kW) and 100 hp (75 kW) depending on variant. The **O-200-5 (4ACG-199)** featured a [geared propeller drive](/source/Propeller_speed_reduction_unit). ## Variants **4AC-199** - - **O-200-1** - **O-200-3** - **O-200-7** - **O-200-9** **4ACG-199** - - **O-200-5** ## Applications ### Direct drive - [CAP-1 Planalto](/source/CAP-1_Planalto) - [CAP-5 Carioca](/source/CAP-5_Carioca) - [Aeronca Arrow](/source/Aeronca_Arrow) - [Babcock LC-11](https://en.wikipedia.org/w/index.php?title=Babcock_LC-11&action=edit&redlink=1) - [Culver Cadet](/source/Culver_Cadet) - [LAR-90](/source/Culver_Cadet) - [XPQ-8](/source/Culver_Cadet) - [TDC-1 target drone](/source/Culver_Cadet) - [Interstate Cadet](/source/Interstate_Cadet) - [Langley Twin](/source/Langley_Twin) - [Monocoupe 90](/source/Monocoupe_90) - [Piasecki PV-2](/source/Piasecki_PV-2) - [Rearwin Skyranger](/source/Rearwin_Skyranger) - [Sackett Jeanie](https://en.wikipedia.org/w/index.php?title=Sackett_Jeanie&action=edit&redlink=1) - [Stinson 10](/source/Stinson_Voyager#Variants) - [Stinson L-9](/source/Stinson_Voyager#Variants) - [Stout Skycar](/source/Stout_Skycar) ### Geared drive - [Convair (Stinson) Model 103](/source/Stout_Skycar) - [Spratt Tilt-Wing](https://en.wikipedia.org/w/index.php?title=Spratt_Tilt-Wing&action=edit&redlink=1) - [Goodyear Duck](/source/Goodyear_Duck) - [Interstate Cadet](/source/Interstate_Cadet) - [Interstate L-6](/source/Interstate_L-6) - [Piper PA-7 Skycoupe](/source/Piper_PA-7) ## Specifications (O-200-5/4ACG-199) *Data from* [*[citation needed](https://en.wikipedia.org/wiki/Wikipedia:Citation_needed)*] ### General characteristics - **Type:** 4-cylinder air-cooled [horizontally opposed](/source/Flat-4) aircraft piston engine - **[Bore](/source/Bore_(engine)):** 4.25 in (108 mm) - **[Stroke](/source/Stroke_(engine)):** 3.5 in (88.9 mm) - **[Displacement](/source/Engine_displacement):** 198.6 in³ (3.25 L) - **[Dry weight](/source/Dry_weight):** 224 lb (102 kg) ### Components - **Cooling system:** Air-cooled ### Performance - **Power output:** 102 hp (76 kW) at 3,500 rpm ## See also **Comparable engines** - [Continental O-200](/source/Continental_O-200) **Related lists** - [List of aircraft engines](/source/List_of_aircraft_engines) ## References Wikimedia Commons has media related to [Franklin O-200](https://commons.wikimedia.org/wiki/Category:Franklin_O-200). **Notes** **Bibliography** - Gunston, Bill. (1986) *World Encyclopedia of Aero Engines*. Patrick Stephens: Wellingborough. p. 57 v t e Franklin aircraft engines By displacement O-110 O-120 O-150 O-170 O-175 O-180 O-200 O-225 O-235 O-265 O-300 O-315 O-335 O-350 O-400 O-405 O-425 O-500 O-540 O-595 O-805 Two-cylinder engines By displacement O-110 O-120 By company designation 2A-110 2A-120 2A4-45 2A4-49 2AL-112 Four-cylinder engines By displacement O-150 O-170 O-175 O-180 O-200 O-225 O-235 By company designation 4A-225 4A-235 4A4-100 4A4-75 4A4-85 4A4-95 4AC-150 4AC-171 4AC-176 4AC-199 4ACG-176 4AL-225 Sport 4 Six-cylinder engines By displacement O-265 O-300 O-315 O-335 O-350 O-405 O-425 O-500 By company designation 6A-335 6A-350 6A3 6A4 6A8-215 6AC-264 6AC-298 6AC-403 6ACV-245 6AG-335 6AG4-185 6AG6-245 6AGS-335 6AGS6-245 6AL-315 6AL-335 6AL-500 6ALV-335 6AS-335 6V-335 6V4 6V6-245-B16F 6V6-245 6V6-300-D16FT 6V6-300 6VS-335 Eight-cylinder engines By displacement O-400 O-540 By company designation 8AC-398 8ACG-398 8ACG-538 8ACGSA-538 8ACSA-538 12-cylinder engines By displacement O-595 O-805 By company designation 12AC-596 12AC-806 v t e United States military piston aircraft engine designation system H (four-bank H-configuration inline) H-1640 XH-2240 XH-2470 XH-2600 XH-3130 XH-3730 H-4070 IV (inverted-V inline) IV-1430 IV-2040 IV-2220 L (single-bank inline) L-330 L-365 L-375 L-390 L-410 L-440 L-510 L-825 O (opposed) O-15 O-40 O-45 O-90 O-100 O-145 O-150 O-170 O-175 O-180 O-190 O-200 (C) O-200 (F) O-205 O-235 O-290 O-300 O-335 O-360 (C) O-360 (L) O-405 O-425 O-435 O-470 O-480 O-520 O-540 (F) O-540 (L) O-550 O-580 O-805 O-1230 R (radial) R-250 R-265 R-270 R-370 (LB) R-370 (K) R-420 R-440 R-500 R-540 (W) R-540 (K) R-545 R-550 R-600 R-670 R-680 R-720 R-755 R-760 R-790 R-830 R-915 R-975 DR-980 R-985 R-1044 R-1300 R-1340 R-1454 R-1510 R-1535 R-1640 R-1670 R-1690 R-1740 R-1750 R-1820 R-1830 R-1860 R-2000 R-2060 R-2160 R-2180 R-2600 R-2800 R-3350 R-4090 R-4360 R-7755 V (upright-V inline) V-720 V-1150 V-1237 V-1400 V-1440 V-1460 V-1510 V-1560 V-1570 V-1650 (P) V-1710 V-1950 V-3420 V (inverted-V inline) V-770 V-1650 (L) VG (inverted-V inline) VG-1410 W (three-bank W-configuration inline) W-2779 See also: X-1800 US military gas turbine aeroengines Piston engine configurations --- Adapted from the Wikipedia article [Franklin O-200](https://en.wikipedia.org/wiki/Franklin_O-200) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Franklin_O-200?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.