NEWS

Mount the O.S. FSa-56 Version II engine in the flight model and discover the advantages of the O.S. 4-stroke technology.Benefits include higher performance for RC sport airplanes and more realistic rich deep sound for the modeler's heart, enriching the flight experience.Product featuresThe popular FS56-a includes more upgrades and makes the engine even betterMore stable operation due to the blow-by oil ejection through the bleed nipple on the back plateThe black rocker covers make the engine look impressive.The F-4040 silencer can be flexibly positioned so that the silencer can be ideally mounted in the model.The engine fits easily and without modifications in any model in which the FS-56a has been recommended.Weight without silencer 377gSpecificationsArticle number manufacturer: OS34330Design: 4-stroke nitroBore [mm]: 24.0mmSpeed ??range approx.: 2,400-13,000 o/minRecommended propeller: 13x6, 12x6, 12x7, 12x8; Scale: 13x6, 13x7, 12x6, 12x7, 12x8Stroke [mm]: 20.6mmDisplacement [cc]: 9.32ccPower HP: 1.00 at 10,000rpmCarburettor: 40NATotal weight: 419g OS34330

OS is at the forefront of 4-stroke engine technology and you will feel it when you mount the FSa-72II in your model! Sport flyers will enjoy more performance, while scale pilots will enjoy a more realistic deep, rich sound from the FSa-72II.New upgrades make the popular FS72 an even better engine option!The bleed nipple on the body cover ensures more stable operation.The black valve cover gives the engine a more impressive look.The F-5030 silencer can be positioned to ideally fit the model.Has the same installation dimensions as the FS-72a and will fit all designated models with no modifications required.Specifications:Dist. mounting holes lengthwise [mm]: 20mmDistance fastening holes across [mm]: 45mmArticle number manufacturer: OS34721Design: 4-stroke nitroFixing hole Ø [mm]: 3.7mmBore [mm]: 27.0mmSpeed ??range approx.: 2400-12,500 rpmRecommended propeller: 12x7 - 14x7Total weight [g]: 476gApprox. height [mm]: 108mmStroke [mm]: 20.6mmDisplacement [ccm]: 11.8mmLength to hub: 148mmPower kW (hp) 0.89 (1.2) at 11,000 rpmCarburettor: 61NShaft Ø [mm]: 6.1mmShaft thread: UNF 1/4-2 OS34721

FA-180 "B" is the improved version of the FA-180/GK with improved cylinder, crankshaft and camshaft housing. Otherwise identical to the predecessor!Technical information:Displacement: 29.11 ccmBore: 36 mmstroke: 28.6 mmWeight: 931 g (1013 g with silencer)Speed range: 2000 - 10000 U/minPropellers: 15x10" / 16x8"-16x10" / 17x8"Fuel consumption: about 55cc/min Who does not know them, the fantastically beautiful 4T engines from SAITO! For years known for highest quality and reliability. SAITO motors from the time of the (FA)ignition motors have become known. Always in 4-stroke design, in black housing with golden valve cover ( GK") or simply in silver-colored housing. Later followed modern large-volume (FG) petrol engines in different cylinder numbers. These new petrol engines quickly enjoyed great popularity, and from the outset they were regarded as powerful and reliable. Gasoline engines have a lower fuel consumption than ignition motors and the fuel is also much cheaper. The electronic ignition makes it possible to start the engines without an annealing device, which significantly improves the operating comfort compared to earlier engines. Commercially available standard gasoline is usually used in combination with high-quality 2T oil in a 15-20:1 ratio. A manual and in English language is enclosed with the engine. FA180B

The FA-182TD is not a true boxer engine, as both connecting rods are attached to one crankshaft journal. However, this design has the advantage that the engine is simple in construction, lighter and more efficient. The double glow plug per cylinder improves control and response.The double carburetor allows each cylinder to be adjusted individually for optimum performance. This classic glow ignition engine fits for example very well the Piper Super Cub PA-18 from Hangar-9 with span 2,69m or similar modelsTechnical information:Displ.: 30 cc“ Bore: 28.2 mm“ Stroke: 24 mmWeight: approx. 1040 gPractical speed: 2000 - 10000 rpm“ Propeller: 15x8" - 16x8"Fuel: glow engine fuel with 10-20% Nitromethan Who does not know them, the fantastically beautiful 4T engines from SAITO! For years known for highest quality and reliability. SAITO motors from the time of the (FA)ignition motors have become known. Always in 4-stroke design, in black housing with golden valve cover ( GK") or simply in silver-colored housing. Later followed modern large-volume (FG) petrol engines in different cylinder numbers. These new petrol engines quickly enjoyed great popularity, and from the outset they were regarded as powerful and reliable. Gasoline engines have a lower fuel consumption than ignition motors and the fuel is also much cheaper. The electronic ignition makes it possible to start the engines without an annealing device, which significantly improves the operating comfort compared to earlier engines. Commercially available standard gasoline is usually used in combination with high-quality 2T oil in a 15-20:1 ratio. A manual and in English language is enclosed with the engine. FA182TD

New version with modified crankshaft, camshaft housing and housing cover.Technical information:Displacement 13.47 ccmBore: 29 mmStroke: 20.4 mmWeight: 447 g (528 g with silencer) Speed range: 2000 - 12000 rev/minPropeller: 13x7" - 14x6"Fuel: Ignition fuel with 10-20% nitromethaneFuel consumption: about 35ccm/min Who does not know them, the fantastically beautiful 4T engines from SAITO! For years known for highest quality and reliability. SAITO motors from the time of the (FA)ignition motors have become known. Always in 4-stroke design, in black housing with golden valve cover ( GK") or simply in silver-colored housing. Later followed modern large-volume (FG) petrol engines in different cylinder numbers. These new petrol engines quickly enjoyed great popularity, and from the outset they were regarded as powerful and reliable. Gasoline engines have a lower fuel consumption than ignition motors and the fuel is also much cheaper. The electronic ignition makes it possible to start the engines without an annealing device, which significantly improves the operating comfort compared to earlier engines. Commercially available standard gasoline is usually used in combination with high-quality 2T oil in a 15-20:1 ratio. A manual and in English language is enclosed with the engine. FA82B

Thrust: 15x8" 4.8kg 16x6" 5.5 kg Technical information:Displacement: 20.52 ccmBore: 31.7 mmstroke: 26 mmWeight: 620 g (about 700 g with silencer)Speed range: 2000 - 10500 rev/minPropeller: 15x7" - 16x6"Fuel: Ignition fuel with 10-20% nitromethane Who does not know them, the fantastically beautiful 4T engines from SAITO! For years known for highest quality and reliability. SAITO motors from the time of the (FA)ignition motors have become known. Always in 4-stroke design, in black housing with golden valve cover ( GK") or simply in silver-colored housing. Later followed modern large-volume (FG) petrol engines in different cylinder numbers. These new petrol engines quickly enjoyed great popularity, and from the outset they were regarded as powerful and reliable. Gasoline engines have a lower fuel consumption than ignition motors and the fuel is also much cheaper. The electronic ignition makes it possible to start the engines without an annealing device, which significantly improves the operating comfort compared to earlier engines. Commercially available standard gasoline is usually used in combination with high-quality 2T oil in a 15-20:1 ratio. A manual and in English language is enclosed with the engine. FA125A

Technical information:Displ.: 17,17 ccBore: 29 mmStroke: 26 mmWeight: 550 g (600 g with muffler)Practical speed: 2000 - 11000 rpmProp: 13x9"-13x1" / 14x6"-14x10" / 15x8"Fuel: glow engine fuel with 10-20% Nitromethan Who does not know them, the fantastically beautiful 4T engines from SAITO! For years known for highest quality and reliability. SAITO motors from the time of the (FA)ignition motors have become known. Always in 4-stroke design, in black housing with golden valve cover ( GK") or simply in silver-colored housing. Later followed modern large-volume (FG) petrol engines in different cylinder numbers. These new petrol engines quickly enjoyed great popularity, and from the outset they were regarded as powerful and reliable. Gasoline engines have a lower fuel consumption than ignition motors and the fuel is also much cheaper. The electronic ignition makes it possible to start the engines without an annealing device, which significantly improves the operating comfort compared to earlier engines. Commercially available standard gasoline is usually used in combination with high-quality 2T oil in a 15-20:1 ratio. A manual and in English language is enclosed with the engine. FA100

The UMS 7-35 is a very reliable radial engines which uses glow fuel. UMS has a ton of experience building radial engines. It has brought more than 2000 engines to market so far. The design and construction are upper class leading to a outstanding realibility of these engines. They are easily servicebale. All critical parts are easily accesisble.In addition we at Tomahawk Aviation offer a full after sales service support for these engines here in Europe, fast, competent and reliable. Key features“ 7-cylinder radial configuration—absolutely stunning looks and realism“ 4-stroke“ Midsize 35cc displacement“ Comes complete with exhaust collector ring —one-box purchase for a ready-to-mount-and-run engine“ User-friendly choke and throttle bellcranks included makes installation and operation easy“ Made from aluminum or bar stock where appropriate and CNC-machined—accurate and repeatable specifications each and every time“ Cylinder head and crankcases produced from aircraft grade alloys“ Heavy-duty double bearing crankshaft“ Billet aluminum pistons and hardened steel rings“ Hard-chromed and lapped cylinder bores“ Hardened steel cams“ Burns glow fuel 41000

FA-120R3 is the upgrade version of FA-90R3 with 33% more displacement with lighter weight and more power. Common model size is. .60 - .90. The radial engine arrangement makes the engine suitable for many models from the golden era of piston engine aircraft. Technical information:Hubraum: 19,18 ccBore: 22,4x3 mmStroke: 16,2x3 mmWeight: 890 g (with exhaust pipes)RPM range: 1800 - 10000 rpmPropeller: 13x8" - 14x6"Fuel: glow engine fuel with 15% Nitromethan Who does not know them, the fantastically beautiful 4T engines from SAITO! For years known for highest quality and reliability. SAITO motors from the time of the (FA)ignition motors have become known. Always in 4-stroke design, in black housing with golden valve cover ( GK") or simply in silver-colored housing. Later followed modern large-volume (FG) petrol engines in different cylinder numbers. These new petrol engines quickly enjoyed great popularity, and from the outset they were regarded as powerful and reliable. Gasoline engines have a lower fuel consumption than ignition motors and the fuel is also much cheaper. The electronic ignition makes it possible to start the engines without an annealing device, which significantly improves the operating comfort compared to earlier engines. Commercially available standard gasoline is usually used in combination with high-quality 2T oil in a 15-20:1 ratio. A manual and in English language is enclosed with the engine. FA120R3

Technical information:Displ.: 25,06 ccBore: 34 mmStroke: 27,6 mmWeight: 933,5 g (1017 g with muffler)RPM range: 2000 - 10000 rpmPropeller: 15x8" - 16x8"fuel: glow engine fuel with 10-20% Nitromethan Who does not know them, the fantastically beautiful 4T engines from SAITO! For years known for highest quality and reliability. SAITO motors from the time of the (FA)ignition motors have become known. Always in 4-stroke design, in black housing with golden valve cover ( GK") or simply in silver-colored housing. Later followed modern large-volume (FG) petrol engines in different cylinder numbers. These new petrol engines quickly enjoyed great popularity, and from the outset they were regarded as powerful and reliable. Gasoline engines have a lower fuel consumption than ignition motors and the fuel is also much cheaper. The electronic ignition makes it possible to start the engines without an annealing device, which significantly improves the operating comfort compared to earlier engines. Commercially available standard gasoline is usually used in combination with high-quality 2T oil in a 15-20:1 ratio. A manual and in English language is enclosed with the engine. FA150B

The FA-62B in the housing of the 56 engine. Ideal for .40 to .72 class models in combination with an APC 13x6" propeller. The one-piece cylinder head features improved cooling, the double ball bearing crankshaft guarantees precision and durability. Technical information:Displacement: 10,24 ccmBore: 26.2mmStroke: 19mmcrankshaft Threads: M7x1 mmdual ball BearingCylinder Type: AACWeight: 418 g (engine only)Weight muffler: 46 gProp: 12"x6"-12"x8" / 13"x5"-13"x6" Who does not know them, the fantastically beautiful 4T engines from SAITO! For years known for highest quality and reliability. SAITO motors from the time of the (FA)ignition motors have become known. Always in 4-stroke design, in black housing with golden valve cover ( GK") or simply in silver-colored housing. Later followed modern large-volume (FG) petrol engines in different cylinder numbers. These new petrol engines quickly enjoyed great popularity, and from the outset they were regarded as powerful and reliable. Gasoline engines have a lower fuel consumption than ignition motors and the fuel is also much cheaper. The electronic ignition makes it possible to start the engines without an annealing device, which significantly improves the operating comfort compared to earlier engines. Commercially available standard gasoline is usually used in combination with high-quality 2T oil in a 15-20:1 ratio. A manual and in English language is enclosed with the engine. FA62B

OS MAX FS-155-P is a high-performance four-stroke engine suitable for all types of model aircraft. The design was created according to the most modern aspects and the production is carried out on precision machines. This ensures consistent quality, high performance and reliability and long life.The OS MAX FS-155-P engine is equipped with the easy-to-adjust 60Y carburettor, which achieves an even fuel/air mixture in all flight conditions. A new type of lubrication system eliminates the need to lay hoses for crankcase ventilation. To optimise the already low noise level of four-stroke engines, the silencer provided for the OS MAX FS-155-P engine has a large volume and a special design.Technical dataSpacer holes lengthwise: 25 mmTransverse spacing of holes: 58 mmWidth: 67 mmSpeed range: approx. 2000-10000 rpmRecommended propeller: 16x8~12", 17x8~12"Height: approx. 138,6mmStroke: 28,6mmDisplacement: 25,36cm³Length to hub: 127,5 mmPower: (HP) 2.6 at 10,000 rpmCarburettor: 70RShaft thread: UNF-5/16-24Bore: 33.6 mm OS35430

OS MAX FS-95 V is a high-performance four-stroke engine suitable for all types of model aircraft. The design was created according to the most modern aspects and the production is carried out on precision machines. This ensures consistent quality, high performance and reliability and long life.For the sake of increased durability, the parts of the engines that are susceptible to corrosion have been given special surface protection, and for the same reason the rear crankshaft bearing is double sealed and provided with permanent lubrication.To optimise the already low noise level of four-stroke engines, the muffler provided for the OS MAX FS-95-V engine has a large volumeTechnical data:Spacer holes lengthwise [mm]: 25Spacer holes transverse [mm]: 52Article number Manufacturer: 30900Version: 2-strokeMounting hole Ø [mm]: 4,2Bore [mm]: 29.0Width [mm]: 61Speed range approx.: 2100 - 11000Recommended propeller: 13x8 - 14x8Total weight [g]: 592Height approx. [mm]: 119Stroke [mm]: 23,6Displacement [ccm]: 15,55Cooling: AirLength to hub: 115.7Power output: 1.2 (1.7)Power kW (hp) at: 10000Carburettor: 69PShaft Ø [mm]: 7.8Shaft thread: UNF-5/16-24 "O. S. ENGINES", based in Osaka/Japan, is one of the world's most renowned model engine manufacturers and has been in existence since 1936 (!). Consistent further development and state-of-the-art production processes have enabled us to achieve a high level of technical development. This is the reason why "O. S."- Engines - advanced and competitively proven 2-/4-stroke enginesEngines for all areas of model making - so popular with renowned experts, too.Double ball bearing motor with high performance and durability, suitable for all types of aircraft, especially aerobatics and scale models. OS30900

Technical information:- Displacement: 6.60 cc- Bore: 22 mm- Stroke: 17.4 mm- Weight: 290 g (305 g with silencer)- Speed range: 2000 - 12000 rpm- Propeller: 10x7"-10,5x6" / 11x5"-11x6"- Fuel: Glow ignition fuel 10-20% nitromethane Who does not know them, the fantastically beautiful 4T engines from SAITO! For years known for highest quality and reliability. SAITO motors from the time of the (FA)ignition motors have become known. Always in 4-stroke design, in black housing with golden valve cover ( GK") or simply in silver-colored housing. Later followed modern large-volume (FG) petrol engines in different cylinder numbers. These new petrol engines quickly enjoyed great popularity, and from the outset they were regarded as powerful and reliable. Gasoline engines have a lower fuel consumption than ignition motors and the fuel is also much cheaper. The electronic ignition makes it possible to start the engines without an annealing device, which significantly improves the operating comfort compared to earlier engines. Commercially available standard gasoline is usually used in combination with high-quality 2T oil in a 15-20:1 ratio. A manual and in English language is enclosed with the engine. FA40A

The FA-200R3 is the largest glow ignition radial engine in the Saito range at present. Especially prototypical models with radial engines are suitable for the use of the FA-200R3. For example, a Hawker Seafury with approx. 1.95m from Blackhorse achieves appealing flight performance, which corresponds well to the original. The sound fits perfectly then to such modelsTechnical information:Displ.: 32,98 ccBore: 27x3 mmStroke: 19,2x3 mmGewicht: 1385 g (incl. muffler)Practical speed: 1800 - 9500 U/MinProp: 16x8"-10" / 17x6"Fuel: glow engine fuel with 15% Nitromethan Who does not know them, the fantastically beautiful 4T engines from SAITO! For years known for highest quality and reliability. SAITO motors from the time of the (FA)ignition motors have become known. Always in 4-stroke design, in black housing with golden valve cover ( GK") or simply in silver-colored housing. Later followed modern large-volume (FG) petrol engines in different cylinder numbers. These new petrol engines quickly enjoyed great popularity, and from the outset they were regarded as powerful and reliable. Gasoline engines have a lower fuel consumption than ignition motors and the fuel is also much cheaper. The electronic ignition makes it possible to start the engines without an annealing device, which significantly improves the operating comfort compared to earlier engines. Commercially available standard gasoline is usually used in combination with high-quality 2T oil in a 15-20:1 ratio. A manual and in English language is enclosed with the engine. FA200R3

NGH engines offer proven technology at an attractive price. High-quality workmanship, compact size and the pleasant four-stroke sound are the standard here.The GF60i in-line engine was designed and manufactured with great care. Due to its 180° crankpin offset at the crankshaft, it develops an excellent, very pleasant sound - even without additional silencers.Technical data* Displacement = 59.82cc* Housing made of special aluminium alloy* Runs with 1:35 mixture (oil/petrol)* Bore / stroke = 36mm / 29.4mm* Propeller 2-blade 20x10 to 22x8* Speed range = 1200 ... 7500 rpm_1* Power = 2.34PS at 9000 rpm/min_1* Operating voltage ignition = 4.8 - 8.4V* Weight = engine incl. ignition approx. 2950g* Spare parts service (a spare parts list and exploded drawing is enclosed with each motor)Scope of delivery* Fully assembled, ready-to-install motor* CM-6 spark plugs* Electric ignition RCEXL (4.8 .. 8.4V)* Carburetor* Exhaust pipes curved* Mounting material, instructions C6190

The UMS 7-77 is a very reliable radial engines which uses glow fuel. UMS has a ton of experience building radial engines. It has brought more than 2000 engines to market so far. The design and construction are upper class leading to a outstanding realibility of these engines. They are easily servicebale. All critical parts are easily accesisble.In addition we at Tomahawk Aviation offer a full after sales service support for these engines here in Europe, fast, competent and reliable. Key features“ 7-cylinder radial configuration—absolutely stunning looks and realism“ 4-stroke“ Midsize 77cc displacement“ Comes complete with exhaust collector ring —one-box purchase for a ready-to-mount-and-run engine“ User-friendly choke and throttle bellcranks included—makes installation and operation easy“ Made from aluminum or bar stock where appropriate and CNC-machined—accurate and repeatable specifications each and every time“ Cylinder head and crankcases produced from aircraft grade alloys“ Heavy-duty double bearing crankshaft“ Billet aluminum pistons and hardened steel rings“ Hard-chromed and lapped cylinder bores“ Hardened steel cams“ Burns glow fuel 41001

With the FS-SURPASS series, OS has developed a new generation of four-stroke single-cylinder engines. Especially in terms of performance, they considerably surpass the previous OS four-stroke engines of the same displacement size.19.96 cm³ displacement. Quadruple ball bearings with fuel pump.Technical dataLongitudinal clearance holes [mm]: 25mmSpacer holes crosswise [mm]: 58mmArticle number Manufacturer: OS35540Type: 4-stroke Nitromounting hole Ø [mm]: 5mmBore [mm]: 30,4mmWidth [mm]: 67mmSpeed range approx.: 2.000-12.000 rpmRecommended propeller: 15x8 - 16x10Total weight [g]: 920gHeight approx. [mm]: 138mmStroke [mm]: 27,5mmDisplacement [ccm]: 19,96ccmLength to hub: 135mmPower kW [hp] 1.539 (2.1) at 12,000 rpmCarburettor: 60CShaft thread: 5/16"-24 UNF "O. S. ENGINES", based in Osaka/Japan, is one of the world's most renowned model engine manufacturers and has been in existence since 1936 (!). Consistent further development and state-of-the-art production processes have enabled us to achieve a high level of technical development. This is the reason why "O. S."- Engines - advanced and competitively proven 2-/4-stroke enginesEngines for all areas of model making - so popular with renowned experts, too.Double ball bearing motor with high performance and durability, suitable for all types of aircraft, especially aerobatics and scale models. OS35540

"O. S. ENGINES", based in Osaka/Japan, is one of the world's most renowned model engine manufacturers and has been in existence since 1936 (!). Consistent further development and state-of-the-art production processes have enabled us to achieve a high level of technical development. This is the reason why "O. S."- Engines - advanced and competitively proven 2-/4-stroke enginesEngines for all areas of model making - so popular with renowned experts, too.Double ball bearing motor with high performance and durability, suitable for all types of aircraft, especially aerobatics and scale models. OS36410

Who does not know them, the fantastically beautiful 4T engines from SAITO! For years known for highest quality and reliability. SAITO motors from the time of the (FA)ignition motors have become known. Always in 4-stroke design, in black housing with golden valve cover ( GK") or simply in silver-colored housing. Later followed modern large-volume (FG) petrol engines in different cylinder numbers. These new petrol engines quickly enjoyed great popularity, and from the outset they were regarded as powerful and reliable. Gasoline engines have a lower fuel consumption than ignition motors and the fuel is also much cheaper. The electronic ignition makes it possible to start the engines without an annealing device, which significantly improves the operating comfort compared to earlier engines. Commercially available standard gasoline is usually used in combination with high-quality 2T oil in a 15-20:1 ratio. A manual and in English language is enclosed with the engine. FA-30S(H)

Technical information:Suitable for acrobatics, sports, scale aircraft in the 45-60 classBore: 28,2 mmStroke: 24 mmProp: 12x9" - 12x10" / 13x7" - 13x9" / 14x6"" - 14x8" Who does not know them, the fantastically beautiful 4T engines from SAITO! For years known for highest quality and reliability. SAITO motors from the time of the (FA)ignition motors have become known. Always in 4-stroke design, in black housing with golden valve cover ( GK") or simply in silver-colored housing. Later followed modern large-volume (FG) petrol engines in different cylinder numbers. These new petrol engines quickly enjoyed great popularity, and from the outset they were regarded as powerful and reliable. Gasoline engines have a lower fuel consumption than ignition motors and the fuel is also much cheaper. The electronic ignition makes it possible to start the engines without an annealing device, which significantly improves the operating comfort compared to earlier engines. Commercially available standard gasoline is usually used in combination with high-quality 2T oil in a 15-20:1 ratio. A manual and in English language is enclosed with the engine. FA91S

This is O.S. "V" engine from this series. The FS-62 V engine has the nostalgic look of a 1930s aircraft engine. To complete the FS-62 V, a scale Jet Stream exhaust is included to give the authentic deep sound of a 4-stroke engine.Technical DataCooling: AirWidth [mm]: 51mmPower: 0,8 (1,1) kW (HP)Shaft thread: UNF 1/4-28Spacer holes lengthwise [mm]: 17,5mmCarburettor: 61TTotal weight [g]: 442gHeight approx. [mm]: 105.1mmMounting hole Ø [mm]: 3,7mmSpeed range approx.: 2400 - 11000 rpmBore [mm]: 25.0mmSpacing of transverse mounting holes [mm]: 44mmDisplacement [ccm]: 10.11 cm³Power kW (hp) at: 11000 rpmRecommended propeller: 12x6 - 14x6Length to hub: 102.8mmStroke [mm]: 20.6mmShaft Ø [mm]: 6.1mmBrand name: O.S.Range of application: Model aircraftincl. silencer: YesFuel: NitroVersion: 4-stroke NitroArticle number Manufacturer: OS30600 OS30600