O.S. MAX BGX-1 (RN) w/E-5010 Sil. L-OS19301 €339 (+ postage of €1) O.S. MAX BGX-1 (RN) w/E-5010 Sil.    L-OS19301The largest single cylinder engine in the O.S. range, the BGX-1 was designed to offer smoother running and a more compact size than equivalent capacity petrol engines together with light weight and easy operation.The BGX-1 achieves all of these goals and produces 4.1BHP at 10,000rpm.Ideal for large aerobatic, sport and scale applications and designed for 18" x 8" to 20" x 8~10" propellers. Comes complete with an E5010 silencer and cast radial mount.Specifications Displacement    34.97cc 2.13cu. in. Bore    37.3mm 1.469in. Stroke    32.0mm 1.260cu. in. Power Output     4.1/ 10000 (BHP/RPM) RPM    1500 - 1000 Weight    1340g Propeller Range:    18x8-12 20x8-10    Quantity: 12345678910 Buy Now: O.S. MAX 160FX Ring w/E-5010 Sil. L-OS19260 €309 (+ postage of €1) O.S. MAX 160FX Ring w/E-5010 Sil.    L-OS19260    The largest engine in the FX series boasts impressive bhp for its compact external dimensions. Its 'porting' has been optimised for low RPM's and is quite happy turning big props on a scale model or low diameter/high-pitch props on a pattern aircraft. The 'ringed' piston on this size of engine allows easy starting and has a forgiving nature when it comes to 'tuning' the main needle for optimum performance.Specifications Displacement    26.23cc 1.604cu. in. Bore    33.6mm 1.323in. Stroke    29.6mm 1.165cu. in. Power Output     3.7 / 9000 (BHP/RPM) RPM    1800 - 10000 Weight    925g Propeller Range:    15x13-14 16x12-14 17x12-13 18x8-10 20x8 Quantity: 12345678910 Buy Now: O.S. MAX 140RX L-OS19221 €419 (+ postage of €1) O.S. MAX 140RX    L-OS19221Designed for F3A aerobatic competition flying, the MAX-140RX packs3.5BHP into a very compact engine.Fitted with a new Type 70A carburettor& matching PL-06 fuel pump, the engine receives a positive, even fueldelivery and smooth throttle response - irrespective of the aircraft's attitude.Supplied without silencer, it is designed to be used with a tuned pipe and15" x 14" to 16" x 16" props.SpecificationsDisplacement    23.0cc 1.40cu. in.Bore    32.0mm 1.26in.Stroke    Power Output     3.5 / 9000 (BHP/RPM)RPM    1800 - 10000Weight    830gSpecificationPropeller Range:    16x14 17x13 Quantity: 12345678910 Buy Now: O.S. MAX 120AX Ring w/E-5020 Sil. L-OS19210 €242 (+ postage of €1) O.S. MAX 120AX Ring w/E-5020 Sil.    L-OS19210    The distinctive shape is hard to ignore, and with peak power of 3.1PS at 9000RPM, you can be sure that this engine loves big propellers! OS recognised that engines of this size are often used in scale models and have developed a silencer system that allows adaption to some of the 'tightest' installations. The carburettor features a neat needle valve that protects fingers while adjusting, yet is simple & accessible.    SpecificationPropeller Range:    15x10-12 16x8-10 Quantity: 12345678910 Buy Now: O.S. MAX 91FX Ring w/E-4020 Sil. L-OS19021 €205 (+ postage of €1) O.S. MAX 91FX Ring w/E-4020 Sil.    L-OS19021Sharing exactly the same mounting pattern as the 61FX, the 91FX offers 47% more power with almost no weight penalty!Just like all FX series engines the 91FX has the rear needle valve assembly with the addition of a variable fuel inlet location in addition to the adjustable main needle orientation. To ease hand starting a ringed piston setup is emplyed.Give your model a power boost from this compact powerhouse.    Specification Propeller Range:    15x8 16x6-8 17x6 14x7 3blade Weight:    550g 19.40oz Displacement:    14.95cc 0.91cu in. Bore:    27.7mm 1.09in. Stroke:    24.8mm 0.980in Power Output:    2.8PS@15000 RPM Practical RPM:    2000-16000 Quantity: 12345678910 Buy Now: O.S. MAX 75AX w/E-4020 Silencer L-OS17400 €195 (+ postage of €1) O.S. MAX 75AX w/E-4020 Silencer    L-OS17400The third engine in the new 'AX' range of high performance 2 stroke engines fills a convenient gap between the existing 61FX and 91FX, yet features the radical new style pioneered with the fabulous 55AX. The new 75AX is supplied complete with the latest 'P-Box' design silencer for improved noise suppression. By keeping the lower crankcase dimensions the same as the 61FX, you can be sure that it will fit in all models designed for a .61, making a power upgrade very simple. The 75AX features the latest O.S. ringless piston technology with multi-layer cylinder coating and high precision Type 61A carburettor with angled safety needle valve assembly.    Specification Capacity:    12.29cc / 0.75 cu.in. Propeller Range:    13x8-10 14x6-8 Weight:    578g / 20.39oz w/o silencer Bore:    25.8mm / 1.016in Stroke:    23.5mm / 0.925in Power Output:    2.4PS @15,000 Quantity: 12345678910 Buy Now: O.S. MAX 61FX w/E-4010 Silencer L-OS17750 €173 (+ postage of €1) O.S. MAX 61FX w/E-4010 Silencer    L-OS17750One of the later additions to the 'FX' series, the 61FX offers high levels of performance and durability, plus easy handling qualities and a competitive price for serious sport and aerobatic flyers.It features a rear mounted needle, O.S. ringless piston/liner and a large fin area for improved cooling. Ideal for scale, sport and aerobatic models, the 61FX is designed to be used with 12" x 7~8" to 12.5" x 6~7" props.SpecificationsDisplacement    9.95cc 0.67cu. In.Bore    24.0mm 0.945in.Stroke    22.0mm 0.866cu. in.Power Output     1.9 / 16000 (BHP/RPM)RPM    2000 - 17000Weight    550gSpecificationPropeller Range:    12x6-8 13x6-7 Quantity: 12345678910 Buy Now: O.S. MAX 55AX w/E-3070 Silencer L-OS15611 €135 (+ postage of €6) O.S. MAX 55AX w/E-3070 Silencer    L-OS15611Designed to combine maximum power with razor sharp throttle response in the smallest possible crankcase, the 55AX has the same mounting dimensions as the popular 46AX above, but an increase in power to 1.70PS. The dramatic AX fin styling is used for optimum cooling and the rearward angled needle on the the type 40J carb makes adjustments safer. Perfect for sport, scale and aerobatic models.    Specification Propeller Range:    12x7-8 13x6-7 Weight:    404g (524g w/silencer) Displacement:    8.933cc (0.545 cu.in) Bore:    23.0mm (0.906in.) Stroke:    21.5mm (0.846in) Power Output:    1.75PS @ 16000RPM Practical RPM:    2000-17000 Quantity: 12345678910 Buy Now: O.S. MAX 46AX w/E-3070 Silencer L-OS15481 €110 (+ postage of €6) O.S. MAX 46AX w/E-3070 Silencer    L-OS15481The first engine in the AX series, the 46AX features a new rear-mounted needle valve system that tolerates crash damage better. The new carburettor has been refined further to make adjustments more precise and throttling even more progressive. The amazing new 'P-Box' silencer is both distinctive in styling as well as being functional. Inside, the 'ringless' piston/liner system delivers strong power and improved life. Quantity: 12345678910 Buy Now: O.S. MAX 35AX w/E-3080 Silencer L-OS13100 €140 (+ postage of €6) O.S. MAX 35AX w/E-3080 Silencer    L-OS13100Designed specifically for light weight and high power output from a compact crankcase, the Max 35AX is an ideal engine for 'Fun Fly' and 3D flying.The new crankcase follows the theme of all the new AX range and the 35AX will fit exactly where the old 32SX did without modification.The new E-3080 muffler is highly effective and features a sealing O-ring between the two main sections. As you would expect, the silencer outlet can be rotated to and desired position.With only 10g more than the old Max 32SX, the 35AX has very little weight penalty for it's substantial power increase.    Specification Capacity:    5.77cc (0.352cu.in.) Propeller Range:    10 x 6, 10 x 7, 11 x 5, 11 x 6, Weight:    280g (9.88oz) Bore:    20.2mm (0.795in) Stroke:    18.0mm (0.709in) Power Output:    0.9PS @ 11,000rpm Practical RPM:    2,500 - 13,000 Quantity: 12345678910 Buy Now: O.S. MAX 25FX w/892 Silencer L-OS12660 €89 (+ postage of €6) O.S. MAX 25FX w/892 Silencer    L-OS12660    A high performance side exhaust engine that is suitable for many types of small R/C aircraft such as sport, scale and aerobatic. And with greater performance, durability & easier, safer handling from the rear mounted needle it features a twin ballraced crank & comes complete with an 892 silencer. O.S.'s legendary standard of build quality are evident throughout.    SpecificationPropeller Range:    9x5 9x6 9x5.5 10x4 10x5 Quantity: 12345678910 Buy Now: O.S. MAX 15CV-A w/871 Silencer L-OS11620 €100 (+ postage of €6) O.S. MAX 15CV-A w/871 Silencer    L-OS11620High performance from the smallest physical size is the name of the game as far as the Max 15CV-A is concerned. Its twin ball-raced crankshaft, full Schnuerle porting and large bore carburettor all contribute to the 0.5bhp power output. A great engine for 1/12th scale combat or those who just like the best, regardless of size.Specifications Displacement    2.49cc 0.152cu. In. Bore    15.2mm 0.598in. Stroke    13.7mm 0.539cu. in. Power Output     0.5 / 18000 (BHP/RPM) RPM    2500 - 19000 Weight    170g Specification Propeller Range:    7x5-6 8x4-6 9x4 Quantity: 12345678910 Buy Now: O.S. MAX 65LA Silv.W/E-4010 Sil. L-OS16512 €139 (+ postage of €6) O.S. MAX 65LA Silv.W/E-4010 Sil.    L-OS16512    A low-cost engine for beginners and sports models, it is reliable and very easy to handle. In both cases the needle valve is mounted at the rear of the motor, so that it can be adjusted safely and at a distance from the spinning propeller. A true lightweight 60 class engine with a surprisingly high performance.    Specification Propeller Range:    12x6 12x7-8 13x6-8 Weight:    535g (18.87oz) Displacement:    10.85cc (0.65cu.in.) Bore:    24.0mm (0.945in.) Stroke:    24.0mm (0.945in.) Power Output:    1.7PS@16000RPM Practical RPM:    2000~16000RPM Quantity: 12345678910 Buy Now: O.S. MAX 46LA Silv. w/E-3030 Sil L-OS13393 €81 (+ postage of €6) O.S. MAX 46LA Silv. w/E-3030 Sil    L-OS13393    Physically identical to the popular 40LA but with a 20% increase in power and no discernible increase in weight. If you've built a model that's ended up a little on the heavy side for a 40LA then the 46LA could be the answer to your prayers! Like all engines in the LA range the 46LA comes with an A3 glowplug as standard plus the highly effective E-3030 Silencer.    Specification Propeller Range:    11x6 11x7 Weight:    272g (9.59oz) Displacement:    7.64cc (0.46cu.in.) Bore:    23.0mm (0.910in.) Stroke:    18.4mm (0.724in.) Power Output:    1.25PS@15000RPM Practical RPM:    2000~16000RPM Quantity: 12345678910 Buy Now: O.S. MAX 25LA Silv. w/E-2030 Sil. L-OS12352 €75 (+ postage of €6) O.S. MAX 25LA Silv. w/E-2030 Sil.    L-OS12352Like its larger brothers the 25LA replaced its FP predecessor and offers the kind of reliable performance you would expect from O.S. with all the design advantages of the latest LA series. The 'safety' rear needle valve assembly, extended crankshaft and that unique shape is guaranteed to impress even the most conservative of tastes.    Specification Propeller Range:    9x6 9x5 10x5 Weight:    197g (6.95oz) Displacement:    4.07cc (0.25cu.in.) Bore:    18.0mm (0.709in.) Stroke:    16.0mm (0.630in.) Power Output:    0.6PS@15000RPM Practical RPM:    2000~16000RPM Quantity: 12345678910 Buy Now: O.S. MAX 15LA Silv. w/871 Silencer L-OS11532 €65 (+ postage of €6) O.S. MAX 15LA Silv. w/871 Silencer    L-OS11532    Compact yet very powerful, the Max 15LA is the kind of engine that just gets on with the job - minimum fuss and maximum reliability. Packing the class leading features of the LA range into such a small engine is easy for O.S. but probably seems impossible to its rivals! It's all there, rear needle valve, stunning external finish and the super quiet 871 muffler. An ideal power source for small models & powered gliders.    SpecificationPropeller Range:7x5 7x6 8x4-5 Quantity: 12345678910 Buy Now: O.S. MAX 10LA Silv. w/871 Silencer L-OS11411 €57 (+ postage of €6) O.S. MAX 10LA Silv. w/871 Silencer    L-OS11411    Although the smallest engine in the O.S. range, the Max 10LA packs quite a punch, whilst producing an amazingly low exhaust note. The highly baffled exhaust system is effective yet does not heavily restrict the performance. Small engines also need to be light, and the Max 10LA has complementary features like a plastic carburettor to help in this direction.    SpecificationPropeller Range:    7x4 7x5 Quantity: 12345678910 Buy Now: O.S. FS-200 Surpass P L-OS35960 €505 (+ postage of €1) O.S. FS-200 Surpass P    L-OS35960   4 STROKEThe logical step up for the aerobatic flier that needs a bit more power for his model and a 1.20 is just not quite enough. In fact, it could be the ideal power choice for a budding F3A pilot looking to power his new 2m model.The new PD-08, diaphragm type fuel pump delivers a constant supply of fuel to the regulator, which in turn ensures that the carburettor itself has the perfect fuel supply, no matter what the model's attitude. This precise fuel supply also ensures optimum fuel consumption, preventing the need to carry excess fuel. The pump reduces the need to keep the tank close to the engine as well so that you can maintain a constant model centre of gravity throughout the flight.The main engine is mechanically identical to the standard FS-200 so fitment to a model designed for a 1.20 is no problem.    Specification Propeller Range:    16 x 12N, 17 x 10N, 20 x 8 Weight:    876g (992g inc Sil.) - 30.9oz(35oz) Displacement:    32.4cc (1.98Cu.in.) Bore:    38.0mm (1.50in) Stroke:    28.6mm (1.13in) Power Output:    3.0 PS/9000 RPM Practical RPM:    1,800 - 10,000 Quantity: 12345678910 Buy Now: O.S. FS120 Surpass III w/F-5020 Sil L-OS35540 €419 (+ postage of €1) O.S. FS120 Surpass III w/F-5020 Sil    L-OS35540    4 STROKEAn updated version of the FS120 MkII now fitted with an integral O.S. Type PG-03 fuel pump and carburettor with built-in fuel regulation to offer the maximum engine reliability - irrespective of the fuel tank's position and model attitude.The FS-120 MkIII features four ball bearings and a special propeller locknut assembly as standard.Ideal for aerobatic, sport and scale models it is is designed to be used with 14" x 9~11" to 18" x 6" props.    Specification Propeller Range:    15x8 16x6-8 18x5-6 13x11-13 14x10-11 Weight:    920g Displacement:    19.96cc 1.218cu. In. Bore:    30.4mm 1.197in. Stroke:    27.5mm 1.083in Power Output:    2.1/12000 (BHP/RPM) Practical RPM:    2000-12000 Quantity: 12345678910 Buy Now: O.S. FSa-110 w/F-5040 Silencer L-OS35410 €345 (+ postage of €1) O.S. FSa-110 w/F-5040 Silencer    L-OS35410    4 STROKEDesigned specifically to offer more power and torque compared to a .91 size four stroke, yet still fit in the same mounting dimensions, the FSa-110 is a real compact powerhouse.Like all FSa series engines, the FSa-110 has near perfect carburation across the RPM range, and thanks to the carefully designed exhaust, a soft yet authoritive note to minimise your presence to the neighbours.Precision carburation, internal oil recirculation and dramatic styling are all features of the FSa range and put this and the other derivatives that cut above the opposition.    Specification Weight:    600g (672g w/silencer) Displacement:    18.0cc Bore:    30.4mm Stroke:    24.8mm Power Output:    1.8PS @ 10,000RPM Practical RPM:    2,000 - 11,000 Quantity: 12345678910 Buy Now: O.S. FS91 Surpass II-P w/F-4020 Sil L-OS35910 €329 (+ postage of €1) O.S. FS91 Surpass II-P w/F-4020 Sil    L-OS35910    4 STROKEThis latest version of the popular FS91 Surpass features a true pressurised fuel system. Similar to the new FS 120S-III the new FS 91-II P has a pump system that is capable of delivering constant fuel via the regulatory carburettor. It is therefore ideally suited to the emerging '90' size aerobatic models. Designed to be used with 11 x 10-11" to 12 x 8" propellers. If you're looking for constant fuel feed at any attitude this is the engine to choose. Supplied with an effective large volume muffler.    Specification Propeller Range:    11x11-12 12x10-12 13x9 14x7 15x6 16x6 Weight:    650g Displacement:    14.95cc 0.912cu. In. Bore:    27.7mm 1.091in. Stroke:    24.8mm0.976in Power Output:    1.6/11000 (BHP/RPM) Practical RPM:    2000-12000 Quantity: 12345678910 Buy Now: O.S. FSa-81 w/F-5030 Silencer L-OS34810 €315 (+ postage of €1) O.S. FSa-81 w/F-5030 Silencer    L-OS34810    4 STROKEThe new FSa-81 is a direct replacement for the FS-70 Surpass II, offering greater power and throttle precision in a compact and lightweight design. The crankcase mounting dimensions allow the FSa-81 to slot into the same mount that an FS -70S II would for an instant power upgrade.Like the FSa-56, the crankcase breather system has now been incorporated inside the engine to negate the need for an external vent and the excess oil that eminates from it. A propeller locknut assembly is of course standard.The new F-5030 silencer is very effective, thanks to it's internal baffle and carefully matched internal volumes and opassages. The design allows a huge range of outlet positions to accomodate almost every model. Even the distance away from the engine can now be adjusted.The latest 60RA carburettor now features a 'constant velocity' inlet for improved throttle response and reduced spitting.    SpecificationPropeller Range:    13x7-9, 14x6-7Silencer:    F-5030Weight:    556g 19.63ozDisplacement:    13.26cc 0.809 cu.in.Bore:    27.7mm 1.091in.Stroke:    22.0mm 0.866in.Power Output:    1.3PS @ 11,000Practical RPM:    2,200 - 12,000 Quantity: 12345678910 Buy Now: O.S. FSa-72 w/F-5030 Silencer L-OS34720 €284 (+ postage of €1) O.S. FSa-72 w/F-5030 Silencer    L-OS34720    4 STROKESharing the same mounting dimensions as the old FL-70 and FS-70U, the new FSa-72 is a simple bolt-in replacement offering compact external dimensions and power/torque to most types of model designed for .46 2 strokes or .70 4 strokes. Like all the FSa series, the FSa-72 has internal crankcase oil re-circulation, a super-smooth carburettor with anti 'spit' inlet and an ultra-quiet silencer. If you have a flying filed 'noise' problem, then this is the engine you need for your average sport model. The new 61N carburettor provides both linear and fuel efficient mixing to gain you reliability and precison control at all RPMs.    Specification Propeller Range:    12 x 7, 13 x 6, 13 x 8, 14 x 6, 14 x 7 Weight:    530g 18.66ozs (inc Silencer) Displacement:    11.79cc 0.72cu.in Bore:    27.0mm 1.063in Stroke:    20.6mm 0.81in Power Output:    1.2PS @ 11,000RPM Practical RPM:    2400 - 12500 Quantity: 12345678910 Buy Now: O.S. FSa-56 w/F-4040 Silencer L-OS34300 €255 O.S. FSa-56 w/F-4040 Silencer    L-OS34300   4 STROKEThe new FSa-56 from O.S. is the first engine in a completely new series of advanced four strokes. The FS 'Alpha' series draws on the experience gained from the Surpass range to develop and refine standards to a new level. The increased capacity compared to the FS-52 Surpass means more power/torque and the new carburettor provides even better throttle control across the entire RPM range! There are innovative features like incorporating the crankcase breather/oil recirculation system into the crankcase to dispense with external nipples and drain tubes as well as a dramatic & futuristic style. An effective and versatile silencer is supplied as standard.    Specification Capacity:    9.32cc / 0.569 cu.in. Propeller Range:    13x6-7 12x6-8 13x6 Silencer:    F-4040 Weight:    419g/14.8oz w/o silencer Bore:    24.0mm / 0.945in Stroke:    20.6mm / 0.811in Power Output:    1.0PS @ 10,000 RPM Buy Now: O.S. FS40 Surpass w/FS40S Silencer L-OS35220 €183 (+ postage of €6) O.S. FS40 Surpass w/FS40S Silencer    L-OS35220   4 STROKEThe original 6.5cc FS-40 was O.S.'s second production single cylinder four stroke and the first to have the front mounted helical driven camshaft now common to all their single cylinder O.S. four stroke engines.The current FS-40S is an all-new design which is much more powerful and closely related to the FS-48, though smaller both internally and externally.Supplied complete with silencer, the FS-40S is ideal for sport and scale models and is designed for use with 10" x 7.5" to 12" x 6" propellers.    Specification Propeller Range:    10x7-7.5 11x6 11x7 12x5-6 Weight:    355g 12.52oz Displacement:    6.49cc 0.40cc. In. Bore:    21.20mm 0.835in. Stroke:    18.4mm 0.724in Power Output:    0.65PS@12000RPM Practical RPM:    2200-12000 Quantity: 12345678910 Buy Now: O.S. FS30 Surpass w/F-1020 Silencer L-OS33000 €165 (+ postage of €6) O.S. FS30 Surpass w/F-1020 Silencer    L-OS33000   4 STROKEThe smallest in the O.S. four stroke range and, at only 9.56 oz, it's also the world's lightest production model four stroke.It has most of the features of the larger single cylinder O.S. four strokes, but it has its camshaft carried in bronze bushes - backed up by a pair of spherical thrust bearings.Ideal for trainers, scale & sport models. Designed to be used with 9" x 6~7" to 10" x 6" props.    Specification Propeller Range:    9x6-7 10x4 Weight:    279g Displacement:    4.89cc 0.299cu. In. Bore:    19.5mm 0.767in. Stroke:    16.4mm 0.648in Practical RPM:    2500-13000 Quantity: 12345678910 Buy Now: Irvine 150 R/C MkII L-IRV3502 €213 (+ postage of €1) Irvine 150 R/C MkII    L-IRV3502    The MkII version of the popular Irvine 150 shares the same design criteria as its predecessor by offering solid performance in a compact package, but takes the concept a step further by optimising the crankcase gas passages to ensure maximum power, yet retain a high gas flow for improved throttle response.The ringed piston and iron liner combination provides easy starting, quick running in and longevity. The piston even has bronze wrist pin bushes, such is the attantion to detail.That CNC machined cylinder head is not just a nice piece of engineering, the type of aluminium used is also more effeicient at dissipating heat than a casting.As the mounting dimensions are fully compatible with the industry standard OS 160FX, you can be sure that the Irvine 150 will also fit most ARTF models that call for this size of engine. The same applies to the exhaust mounting bolts so you can be sure of finding a silencer to suit your needs as well.Supplied with cast rear radial mount as standard but without a silencer.    Specification Weight:    1030g Displacement:    24.59cc Bore:    33.0mm Stroke:    28.8mm Power Output:    3.55PS@11,500 Practical RPM:    1,700-12,000 Quantity: 12345678910 Buy Now: Irvine 53 ABC MkII L-IRV5531 €81 (+ postage of €6) Irvine 53 ABC MkII    L-IRV5531The original Irvine 53 was a hard act to follow, but needless to say, the new Irvine 53 ABC MkII is more than up to the task.The new engine shares the same crankcase dimensions as its predecessors and the new 40 and 46 MkIV stablemates, so you can be sure that fitment is not an issue.The adoption of the latest ringless piston and liner technology, with a totally new bore to stroke ratio, moves the performance on to a new level. The latest C40H carburettor unleashes that performance with the kind of control that you would expect from an engine that has become one of the best sellers in the UK. Smooth, precise and on tap when you need it.Add the redesigned twin chamber silencer, with swivel outlet and you have the best power to weight ratio engine in its class together with the fully muffled exhaust note that Irvine has become famous for.    Specification Weight:    385g Displacement:    8.65cc Bore:    23.7mm Stroke:    19.6mm Power Output:    1.82PS@17,000 Practical RPM:    2,000-17,000 Quantity: 12345678910 Buy Now: Irvine 46 ABC MkIV L-IRV5461 €70 (+ postage of €6) Irvine 46 ABC MkIV    L-IRV5461    Sharing the same external dimensions as its 40 size stable mate, the all new Irvine 46 MkIV delivers greater power for not a lot more cost.Inside there is the very latest in ringless piston and liner technology, which is the result of many hours of computer design and extensive flight testing. The attention to detail lavished in the manufacturing processs ensures that you get the very best combination of power and engine life.Irvine has buit its reputation on providing good quality, high performance engines that are just that bit different from the rest.The completely new C40H carburettor moves the benchmark on from the reliable Jetstream designs and offers better mid range response without sacrificing top end power. Its substantially lighter as well.The new Irvine 46 MkIV is again set to be one of the most popular sports engines in the UK.    Specification Weight:    390g Displacement:    7.45cc Bore:    22.0mm Stroke:    19.6mm Power Output:    1.65PS@16,000 Practical RPM:    2,000-17,000 Quantity: 12345678910 Buy Now: Irvine 40 ABC MkIV L-IRV5401 €60 (+ postage of €6) Irvine 40 ABC MkIV    L-IRV5401The Irvine engine range has evolved again, but this time there's a difference... The latest engines are now manufactured by O.S. to an Irvine design!! By maintaining the successful design concept of theirpredecessors, the Irvine 40 ABC MkIV maintains the Irvine tradition, but has been able to adopt some new technology into the designs. There's now the latest multi-layer, ringless piston/liner design, a simplified and lighter C40H carburettor, which still provides accurate and progressive throttle response, plus a modified and improved crankshaft.We have totally re-thought the bore/stroke ratio to gain maximum performance and it is this attention to detail and development that keeps Irvine engines at the forefront of model engine design.We have retained the effective silencers from the previous designs but with slightly modified dimensions to optimise the combination of power and noise. All these improvements are the result of consumer feedback and extensive testing. We constantly try to improve our designs to suit theever-changing customer requirements without sacrificing production quality. With O.S. actually manufacturing the engine and handling all production, you can be sure of that.    Specification Weight:    403g Displacement:    6.47cc Bore:    20.5mm Stroke:    19.6mm Power Output:    1.4PS@16,000 Practical RPM:    2,000-17,000 Quantity: 12345678910 Buy Now: Irvine 39 ABC R/C L-IRV4391 €86 (+ postage of €6) Irvine 39 ABC R/C    L-IRV4391Whilst the choice of 39 as a capacity might seem strange at first glance, there is in fact a logical reason for it. The 39 was born out of the need to get the maximum power from the smallest possible crankcase. It is in fact very similar in size to a 25. Trying to fit the 39 in a mount designed for a 40 would be somewhat tricky. Keeping the capacity as a 30 class engine is more inline with its intended purpose.This engine is particularly suited to the rigours of 3D Fun Fly competition flying, where the limitations of model size and engine capacity are controlling factors. It is no coincidence that most of the competitors in Fun Fly at the Nationals choose the Irvine 39 as their powerplant. These pilots demand power, torque and throttle response and the 39 delivers this in style.From the precision cast crankcase, through the true ABC piston liner to the CNC machined, Jetsream carburettor, the Irvine 39 shouts quality.Try one in your Fun Fly and you will see what we mean.    Specification Weight:    300g Displacement:    6.35cc Bore:    21.20mm Stroke:    18.0mm Power Output:    1.3PS@17,000 Practical RPM:    3,000-19,000 Quantity: 12345678910 Buy Now: