LEAF 2021

24 HR ORDERS 1-800-532-3462 ONLINECATALOG.LEADINGEDGEAIRFOILS.COM Prices and Supplies are subject to change without notice ROTAX ® 503 UL DCDI 359,4 196 221 72,2 84,2 Ø89 125,5 335 C L TO LC 299 MOTOR R45 125 29 MOTOR TO C 338 125 L 109,8 Ø8 10° 135,6 174 124,5 82,7 26,5 M8 ±0,15 64 M8 20 Ø10,4 14,9 Lk=Ø75 M8 30° 59 48,5 M8 36 257 25° 111 69 59 36 24 33,5 0 126 1/4-28UNF-2B 59 47 36 6x60° 0 16,5 59 47 67,5 144,5 102,5 36 23,5 451 6x60° 370,5 67,5 125 50,5 0,05 Ø0,3 99 282 253,5 1:10 25 Ø29 19,5 30 -0,035 0 72 76 Ø120h7 M8 1/2-20UNF-2B 20 17 -0,1 Ø8,7 Ø100 Ø6,7 Ø25,4 77,5 M10 321 153 80,5 43 15,5 3 57 ±1,4 244,1 11,7 20 Weight Standard kg lbs Engine* 31.4 69.2 2 Carburetors 1.8 4.0 Exhaust System 5.1 11.2 Options kg lbs 2 Air Cleaners 0.3 0.7 Dual Air Cleaner 0.5 1.1 Electric Starter 3.5 7.7 Gearbox "B"/ i=2.0/2.24/2.58 4.5 9.9 Gearbox "C"/ i=2.62/3.0/3.47/4.0 8.0 17.6 ENGINE PERFORMANCE 40 35 30 25 20 15 10 5 0 3000 3500 4000 4500 5000 5500 6000 6500 7000 50 45 40 35 30 25 20 15 10 5 0 Engine Speed RPM Engine Performance (hp) Engine Performance (kw) Conversion: 1kw = 1.34 hp 1hp = 0.7457 kw __ 503 UL DCDI 2V ---- 503 UL DCDI 1V MAX. 6800 FUEL CONSUMPTION 25 20 15 10 5 3000 3500 4000 4500 5000 5500 6000 6500 7000 Fuel Consumption (US gal/h) Fuel Consumption (l/h) 6.3 5.3 4.3 3.3 2.3 1.3 MAX. 6800 __ 503 UL DCDI 2V ---- 503 UL DCDI 1V Conversion: 1 l/h = 0.6417 gal (us) 1 gal (US) = 3.8541 l/h 60 55 50 45 40 35 30 25 20 15 10 5 0 3000 3500 4000 4500 5000 5500 6000 6500 7000 ENGINE TORQUE MAX. 6800 __ 503 UL DCDI 2V ---- 503 UL DCDI 1V Conversion: 1Nm = 0.73 /ft.lb. 1ft.lb . = 1.356 Nm Engine Torque ft.lb. Engine Torque Nm 40 35 30 25 20 15 10 5 0 Engine Speed RPM Options kg lbs Gearbox "E"/ i=2.62/3.0/3.47/4.0 11.2 24.7 Oil Tank 2.4 l 1.6 3.5 Fresh Oil Pump 0.3 0.7 Intake Silencer 1V 0.8 1.8 Intake Silencer 2V 1.1 2.4 After Muffler 1.6 3.5 Intake Silencer 1V 0.8 1.8 Intake Silencer 2V 1.1 2.4 After Muffler 1.6 3.5 *Engine also available in free-air version. ROTAX ® 503 UL DCDI 2-cylinder, 2 stroke fan cooled engine with piston ported inlet, electronic dual ignition, exhaust system, carburetor, rewind starter. Version PERFORMANCE TORQUE MAX RPM kW hp 1/min Nm Ft. lb. 1/min 1/min. 503 UL-1V 34.0 45.6 6500 51 37.6 5900 6800 503 UL-2V 37.0 49.6 6500 56 41.3 6000 6800 BORE STROKE DISPLACEMENT COMPRESSION RATIO 72 mmz 2.84 in. 61 mm 2.40 in 496.7 cm 3 30.31 cu.in . th: 10.8 ef: 6.2 Fuel SUPER 2-stroke oil mixing ratio min. MON 83 RON 91* min. AKI 87* API-TC-Classification 1:50** *Leaded or unleaded. **Variable with fresh oil pump. ignition unit ignition timing spark plug Ducati double CDI 16˚ v. OT Part No. 897 055 Generator performance RPM VOLTAGE 155 W DC 6000 1/min 13.5 V 84 NOTICE: All ROTAX® technical information found in this publication is reproduced using ROTAX® provided materials, but is for reference use only and subject to change without notice. Please consult flyrotax.com for the most current technical data.