O.S.ENGINE

FS Alpha-72 II 11.79cc 4-Stroke Engine w/ Silencer

Article nr: OS34721
Stock availability:
5 pcs
Delivery: 1-2 working days
Next delivery:
Retail price: 5008 kr
Product description

O.S. FSα-72II - 4-Stroke 11.79cc Airplane Engine

Compact 70 size engine suitable for 2-stroke 46 size or 4-stroke 50-70 size planes.

Specs:
  • Displacement: 11.79cc
  • Output: 1.18hp @ 11.000RPM
  • Bore: 27mm
  • Practical RPM Range: 2.400-12.500
  • Stroke: 20.6mm
  • Weight: 476g
Features
Country of origin: JP
Parts
  • Tools (2)
    Multi Glowplug Tool - Nuts: 8/5.5mm & Hex: 2.5/5mm
    Multi Glowplug Tool - Nuts: 8/5.5mm & Hex: 2.5/5mm
    50+ st
    Retail Price: €17.28
    Speed Plug Wrench O.S.SPEED
    Speed Plug Wrench O.S.SPEED
    12 st
    Retail Price: €28.65
  • Starting Equipment (2)
    Glow Starter with Meter for Sub-C battery
    Glow Starter with Meter for Sub-C battery
    32 st
    Retail Price: €34.56
    O.S. Glow Plug Type F
    O.S. Glow Plug Type F
    50+ st
    Retail Price: €13.61
  • Engines (50)
    Throttle Lever Fixing Screw 1A-3A
    Throttle Lever Fixing Screw 1A-3A
    4 st
    Retail Price: €5.81
    Throttle Lever (No.5)
    Throttle Lever (No.5)
    16 st
    Retail Price: €5.81
    Nipple No.1
    Nipple No.1
    23 st
    Retail Price: €5.81
    Nipple No.7
    Nipple No.7
    6 st
    Retail Price: €5.81
    O-Ring Carb Retainer 2 (7B, 20G)
    O-Ring Carb Retainer 2 (7B, 20G)
    17 st
    Retail Price: €5.81
    O-Ring for Needle
    O-Ring for Needle
    23 st
    Retail Price: €7.01
    Set Screw M3x3mm
    Set Screw M3x3mm
    2 st
    Retail Price: €5.81
    Ball, Bearing Front FS52S
    Ball, Bearing Front FS52S
    5 st
    Retail Price: €15.03
    Ratchet Spring No.4
    Ratchet Spring No.4
    0 st
    Next delivery: 2025-09-12
    Retail Price: €5.81
    Needle Valve Holder 20C, 60U, 70D, 40J
    Needle Valve Holder 20C, 60U, 70D, 40J
    11 st
    Retail Price: €10.42
    Woodruff Key 50SX, 61SX/RX, 91SXH/SZ/RZ-H
    Woodruff Key 50SX, 61SX/RX, 91SXH/SZ/RZ-H
    4 st
    Retail Price: €7.01
    O-Ring (S-4)
    O-Ring (S-4)
    2 st
    Retail Price: €5.81
    Ball Bearing Rear FSa56, FS52S, FS70U
    Ball Bearing Rear FSa56, FS52S, FS70U
    2 st
    Retail Price: €16.03
    Crankcase FSa-72
    1 st
    Retail Price: €77.74
    Cam Cover FSa-72
    Cam Cover FSa-72
    1 st
    Retail Price: €9.22
    Crankshaft FSa-72
    Crankshaft FSa-72
    1 st
    Retail Price: €62.91
    Cylinder Head FSa-72
    Cylinder Head FSa-72
    1 st
    Retail Price: €34.26
    Piston FSa-72
    Piston FSa-72
    1 st
    Retail Price: €33.26
    Piston Ring FSa-72
    Piston Ring FSa-72
    1 st
    Retail Price: €25.25
    Cylinder Head FSa-72 II
    Cylinder Head FSa-72 II
    1 st
    Retail Price: €79.94
    Rocker Cover (Black) FSa-72 II
    Rocker Cover (Black) FSa-72 II
    1 st
    Retail Price: €17.23
    Connecting Rod FSa-72
    Connecting Rod FSa-72
    2 st
    Retail Price: €21.84
    Piston Pin FSa-72
    Piston Pin FSa-72
    1 st
    Retail Price: €9.22
    Cover Plate FSa-72 II
    Cover Plate FSa-72 II
    5 st
    Retail Price: €15.03
    Drive Washer FSa-72
    Drive Washer FSa-72
    2 st
    Retail Price: €15.03
    Cam Shaft FSa-72
    Cam Shaft FSa-72
    1 st
    Retail Price: €51.49
    Push Rod FSa-72
    Push Rod FSa-72
    2 st
    Retail Price: €9.22
    Push Rod Cover FSa-72
    Push Rod Cover FSa-72
    1 st
    Retail Price: €10.42
    Carburettor Complete 61N (FSa72)#
    Carburettor Complete 61N (FSa72)#
    2 st
    Retail Price: €100.58
    Carburettor Body 61N (FSa72)
    2 st
    Retail Price: €33.26
    Carburettor Rotor 61N (FSa72)
    1 st
    Retail Price: €25.25
    Air Funnel 61N (FSa72, FS81P)
    1 st
    Retail Price: €13.82
    Head Gasket FS72-81, FS70 Ultimate
    Head Gasket FS72-81, FS70 Ultimate
    7 st
    Retail Price: €7.01
    Intake Valve FSa-72
    1 st
    Retail Price: €28.65
    Exhaust Valve FSa-72
    3 st
    Retail Price: €28.65
    Needle 60RA (FSa-81)
    Needle 60RA (FSa-81)
    9 st
    Retail Price: €11.42
    Tappet Adjusting Screw FS, FT, FF, FR, IL
    Tappet Adjusting Screw FS, FT, FF, FR, IL
    5 st
    Retail Price: €8.01
    Cam Shaft Bearing FS40-120S
    Cam Shaft Bearing FS40-120S
    0 st
    Next delivery: 2025-09-12
    Retail Price: €12.62
    Carburettor Fixing Screw FS70S-120S
    2 st
    Retail Price: €5.81
    Rotor Guide Screw 20C, 60F/L/MC, 70D
    Rotor Guide Screw 20C, 60F/L/MC, 70D
    0 st
    Retail Price: €5.81
    Mixture Control Valve 70N, 60F
    2 st
    Retail Price: €17.23
    Cam Follower FS48S/52S/61/70U
    Cam Follower FS48S/52S/61/70U
    2 st
    Retail Price: €13.82
    Rocker Arm Retainer FS26S-120S, FS70U
    Rocker Arm Retainer FS26S-120S, FS70U
    3 st
    Retail Price: €5.81
    Lock Nut Set FS30S, FS40S-56, FS70U
    Lock Nut Set FS30S, FS40S-56, FS70U
    0 st
    Retail Price: €13.82
    Valve Spring FS70S2/91S2, FS70U
    Valve Spring FS70S2/91S2, FS70U
    13 st
    Retail Price: €5.81
    Valve Spring Retainer FS70S2/91S2, FS70U
    Valve Spring Retainer FS70S2/91S2, FS70U
    4 st
    Retail Price: €5.81
    Cotter Pin FS70S/S2/U, FS91S/S2
    Cotter Pin FS70S/S2/U, FS91S/S2
    5 st
    Retail Price: €9.22
    Rocker Support a81, FS70S, FS91S
    2 st
    Retail Price: €22.84
    O-Ring P-3
    O-Ring P-3
    2 st
    Retail Price: €5.81
    O-Ring (S-11.2)
    O-Ring (S-11.2)
    9 st
    Retail Price: €5.81
  • Exhaust Systems (7)
    Intake Manifold FSa-72
    Intake Manifold FSa-72
    1 st
    Retail Price: €18.43
    Silencer Gasket F-4040, F-5030
    Silencer Gasket F-4040, F-5030
    3 st
    Retail Price: €5.81
    Silencer F-5030 FSa-81
    Silencer F-5030 FSa-81
    5 st
    Retail Price: €51.49
    Silencer Body F-5030 FSa-81
    Silencer Body F-5030 FSa-81
    2 st
    Retail Price: €42.28
    Exhaust Header Pipe F-5030 FSa-81
    Exhaust Header Pipe F-5030 FSa-81
    2 st
    Retail Price: €13.82
    Silencer Assemble Screw M495 F-5030
    Silencer Assemble Screw M495 F-5030
    1 st
    Retail Price: €9.22
    Exhaust Header Pipe Nut M11 FS70S-91S2
    Exhaust Header Pipe Nut M11 FS70S-91S2
    1 st
    Retail Price: €5.81
  • Hardware (5)
    Hex Screw M2.6x7mm (10)
    Hex Screw M2.6x7mm (10)
    4 st
    Retail Price: €9.83
    Hex Screw M2.6x10mm (10)
    Hex Screw M2.6x10mm (10)
    3 st
    Retail Price: €9.83
    Hex Screw M3x8mm (10)
    Hex Screw M3x8mm (10)
    11 st
    Retail Price: €9.83
    Hex Screw M3x15mm (10)
    Hex Screw M3x15mm (10)
    11 st
    Retail Price: €9.83
    Hex Screw M3x20mm (10)
    Hex Screw M3x20mm (10)
    2 st
    Retail Price: €9.83
Popular Accessories
Files/Downloads
File name Language Published
OS_FS_alpha_72II_Exploded_Partslist EN 2020-02-24
OS_FS_alpha_72II_Manual EN 2020-02-24
GPSR

Manufacturer

Registred contact information for the products manufacturer.

Name OS Engines MFG.Co.Ltd
Address 6-15, 3-Chome Imagawa
Higashisumiyoshi-ku
546-0003 Osaka
Country Japan
Phone 0081-6-6704-2722
Email e-info@os-engines.co.jp
Homepage http://www.os-engines.co.jp

Importer

Registered contact information for the responsible company within the EU.

Name Minicars Hobby Distribution AB
Address Annelundsgatan 17
74940 Enköping
Country Sverige
Phone 0046-0171143000
Email info@minicars.se
Homepage https://www.minicars.se
Fits

Complete with

Glow Starter with Meter for Sub-C battery
Glow Starter with Meter for Sub-C battery
32 st
Retail Price: €34.56
Multi Glowplug Tool - Nuts: 8/5.5mm & Hex: 2.5/5mm
Multi Glowplug Tool - Nuts: 8/5.5mm & Hex: 2.5/5mm
50+ st
Retail Price: €17.28
Speed Plug Wrench O.S.SPEED
Speed Plug Wrench O.S.SPEED
12 st
Retail Price: €28.65

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FS Alpha-56 II 9.32cc 4-Stroke Engine w/ Silencer
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