Converting vw engines for aircraft

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The Volkswagon Conversion Plans

The longer stroke results in more displacement, and longer connecting rods yield better vibration and power characteristics. The lower cruise rpm allows the use of longer propellers, and the higher peak horsepower can be felt in shorter takeoffs and steeper climbs. Thrust is handled by the 55 mm 3 bearing at the propeller end of the crank. Fully utilizing its robust 4 main bearing, the Revmaster crank has built in oil-controlled propeller capability, a feature unique in this horsepower range; non-wood props are usable with these engines. Figure Hemispherical combustion chamber within the Revmaster R Heads. Moving from the crankcase and main bearings, the cylinders are made by using centrifugally cast chilled iron. The pistons are forged out of high quality aluminum alloy, machined and balanced in a set of four. There are two sizes of pistons, 92mm and 94mm, designed to be compatible with a 78mm to 82mm stroke crankshafts. The cylinder set also contains piston rings, wrist pins, and locks. The automotive-based bearings, valves, valve springs, and piston rings among others make rebuilds easy and inexpensive. Great Plains Aircraft is one company that offers several configurations of the Volkswagen VW aircraft engine conversion. One very popular model is the front drive long block kits that offer a four-cycle, four-cylinder opposed engine with horsepower ranges from approximately This manual was written by the manufacturer, specifically for the assembly of their engine kits. Also included are how to determine service and maintenance procedures and many tips on how to set up and operate the engine correctly. The Series engine has become a popular engine for use in light-sport aircraft. The engine cylinders have an overhead valve design with updraft intake inlets and downdraft exhaust outlets mounted on the bottom of the cylinder. The dry weight of the engine is The weight of the engine with installed accessories is approximately pounds. The engine is provided with four integral rear engine mounts. A crankcase breather port is located on the side of the crankcase forward of the number 3 cylinder. The engine lubrication system is a wet sump, high-pressure oil system. The engine lubrication system includes the internal engine-driven pressure oil pump, oil pressure relief valve, pressure oil screen mounted on the rear of the accessory case and pressure instrumentation. A fitting is provided at the side of the crankcase for oil pressure measurement. The oil sump capacity is six quarts maximum. Engine manifold pressure is measured at a port located on the side of the intake air manifold. Lycoming Engines, a Textron Inc. The engine features dual CDI spark ignition, an optimized oil sump, a streamlined accessory housing, hydraulically adjusted tappets, a lightweight starter, and a lightweight alternator with integral voltage regulator. It has a dry weight of pounds including the fuel pump and offers continuous power ratings up to hp at rpm. In addition to its multi-gasoline fuel capability, it has proven to be very reliable with a TBO of 2, hours.

Do Car Engines Make Good Airplane Engines?

The answer, in a nutshell, is that the best automobile engine in the world is usually still a poor aircraft engine. Here are the reasons why:. Car engines are designed to provide quick bursts of relatively high power output for acceleration, and then only modest power output for steady-state cruising. Airplanes, on the other hand, usually take off and climb near percent power output, followed by steady-state cruise often at 75 percent power. Aircraft engines are designed to sustain this punishment reliably over a typical 2,hour service life. Reciprocating aircraft engines generally spin a propeller via direct drive, with the prop essentially bolted to the crankshaft. Typically, piston aircraft engines produce peak power output at a redline near 2, rpm. But compared with car engines, aircraft engines produce gobs of torque at relatively low rpm. Auto engines, on the other hand, usually produce very little torque at those settings, while also relying on liquid cooling. Still, that hasn't stopped some manufacturers from adapting automotive engines for aviation duty, and often with impressive results. Its liquid-cooled gasoline engine pictured produces hp at 5, rpm and burns just 3. Read more about the evolution of aircraft engines here. Menu Sign Up. Viking Aircraft Engine. Latest Training. Pilot Proficiency. Flying For The Airlines vs.

The Volkswagon Conversion Plans

A great deal has been written regarding V. Cygnet was originally equipped with an cc, very simple V. This engine gave faultless service for hours and was removed to be replaced by a more modern conversion, equipped with dual ignition, starter and 20 amp alternator. The slight gain in weight is offset by a lot more convenience and the extra margin of safety that was provided by the dual ignition. The Cygnet design requires a light engine and cannot tolerate the weight of a heavy aircraft engine. The V. Many production light aircraft and powered sailplanes in Europe are powered by V. Some backyard mechanics have built engines from junkyard parts, assembling them poorly, run them too hot, or low on oil, or whatever the case……. The same holds true of certified engines. It details exactly how to build a V. You can email: viking02 charter. You can build your own V. Engine conversions. The prototype Cygnet has always been powered by an cc V. W block. Reliable power that can be delivered hour after hour continuously is what an aircraft must have! Stick with conversions that are proven in aircraft. If you want reliability, leave the engine as V. Whether you buy an engine ready to install or build your own, you can have aircraft reliability at a fraction of the cost by using V. Great Plains Aircraft Supply Co. A new engine choice for the Cygnet is the Jabiru aircraft engine built in Australia. The cost will be more than a VW conversion, but it can be considered as an alternative power plant choice for the Cygnet. Designed by Gerlinda. Contact Us. Patrick and Robin Taylor Tel: Email: viking02 charter. Follow Us. Engine Choices.

1/2 VW Engine Plans

Do you want the same engine for your aircraft? General information. Interest in 4-stroke auto-moto engines converting for Light Sport and Ultralight aircraft is growing all over the world. We know that popular 2-stroke Rotax and are not certified aviation engines but variations of snowmobile engines with all 2-strokers' problems. Prices of certified 4-stroke aviation engines are quite high. The active development of aviation piston engines has stopped more than 60 years ago with the jet age beginning. The same time, cars become more and more perfect. Modern auto engines are light, have high reliability and life time. Electronic ignition and fuel injection with microprocessor control system, low gas consumption and flight hour value, simple and inexpensive maintenance with attractive unit price, these features usually distinguish current-technology converted auto engine from its "real aviation" brother. I started to use 4-stroke Auto-Moto engines for aircraft in early th. I never considered them only as "cheap" way of aircraft engine development. Automotive companies spent hundreds of million dollars for their new engines. We all know about serious competition in this industry for the last decades. As a result, even being less expensive because of mass production, modern auto engine is way more advanced. It is a pleasure for me to design new conversion systems and fly them. G10 with stock fuel injection has about the same HP as popular Rotax model. Trikes with G10 have good flight performances with significantly lower flight hour cost. But my favourite engine for trikes for the last several years is G13BB. Different trikes were built and supplied to customers with these engines. I test fly every one by myself. Years and hundreds of flying hours without major problems. My opinion as an aviation engineer and pilot, and the opinion of many builders and pilots who have tried both Air Trikes conversions and engines is that our GEO-Suzuki conversion in many aspects is the preferable choice. It is simply flying better than competitors with Rotax engines! More my and my customers' videos at video page. Air Trikes Enterprises supply ready to install engines with gearboxes, propellers, motormounts, control systems, mufflers etc. More information below. These gearbox conversion systems were designed as modifications of a popular SPG-2 system was in production from Recommended for up to HP engines. The available reduction ratios are 1. There is a German BMW rubber damper between the gear box and the engine. Centrifugal clutch can be used as an additional option recommended for example for 2-cylinder BMW R series moto engines. Rotax-style propeller hub, hollow propeller shaft so it can be used with variable pitch prop or for glider towing. It is possible to use these gearboxes for both tractor and pusher layouts. The gearboxes can be installed up, down and any degrees left or right on the bellhousing. It allows to install the engine not only straight up but inclined or laid flat. BMW damper and hardware included. Bellhousing and coupler are different for different Suzuki, Subaru, Nissan, Honda etc. More than SPG gearbox conversion systems have been made to the end of year. High proven reliability and efficiency, simple maintenance. Mechanical part of the engine conversion is simple.

Engines and Conversion Kits.

Looking for a way to mount a 4-stroke engine to your ultralight or light aircraft? The economic solution is to take a full-case Volkswagon engine and modify it from four cylinders to using only the front two! There are then a multitude of various other modifications needed to seal up new openings created during the conversion and keep the engine leak free. These plans were originally drawn by Scott Land in and were only 7 pages long. The rights were purchased by Simplex Aeroplanes in February and have been revised with extensive information added. There are even full scale templates for making the proper parts. The detailed plans and drawings which take you all the way through the conversion process to actually starting and running your creation. The plans come spiral bound in an easy to understand format. Keep in mind that our plans call for using the entire case as this is the easier method and in many ways the preferred method for conversion. They do NOT specify how to do the cut-case type conversation. Here are few good reasons: Parts are low cost and available via the internet or sometimes can be purchased in your home town. The engine is relatively lightweight. There is no expensive or heavy reduction drive or exhaust system to mount. If you build it well your engine will weigh lbs. Engine HP can be from hp depending on the internal parts used. The cylinders are aircooled, though truth be told most of the cooling comes from the oil.

VW aircraft engine conversions, Lone Star, Twin Cylinder, 4 stroke aircraft engines.

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