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The Bailey V5 paramotor is designed, manufactured and assembled in house to exacting standards. The alloy cage and engine chassis are made from drawn aviation specification aluminium tube of various gauges giving maximum structural stiffness without adding excess weight. All tubes are precision TIG welded using filler rod of the same material to insure uniform strength and quality of finish. In the event of a very heavy landing or fall the cage is designed to deform & absorb impact, protecting the pilot and the main chassis. This ‘No compromise’ design has high structural rigidity in key stressed areas and is designed to be dismantled quickly & easily, leaving the chassis/engine to remain free standing when disassembled.
It is widely understood that the optimum pivot point location for moving hang bars on a paramotor is on the same horizontal plane as the thrust line and vertically in line with the chassis/engine Centre of gravity (C of G). On most designs this ideal location has obstructions which prevent optimum placement.
It has been demonstrated that with zero brake input and full power (>60kg static) a left turn (opposite to torque) can be made with weight shift only, the machine can be made to maintain heading with weight shift input only, from idle all the way to full power. Cage Construction Our unique fastening clamp/webbing strap/roller pulley locates the pull starter handle conveniently just behind the pilots head and both left and right top quarters feature a convenient throttle handle hook. The cage quarters are secured with strong Velcro fasteners allowing quick assembly/disassembly with complete peace of mind and ultimate portability.
The V5 features a 2-piece CNC machined cast alloy crankcase, has a capacity of 195cc with two valves operated by a chain driven overhead camshaft. The oil system is fully pressurised with a pressure relief valve thus maintaining constant oil pressure regardless of the oil temperature or RPM. The cylinder bore features a special coating for increased wear resistance and the crankshaft design features oversize bearings and an internal needle-roller bearing. The crankshaft runs on two main bearings with a third bearing to accommodate drive belt loads. The integral prop speed reduction unit (PSRU) is driven via a Poly-V belt with eccentric belt tension adjustment. Ignition is CDI (capacitive discharge) with integrated variable advance curve. Carburation is by float type carburettor (CVK26) with a K&N air filter with rubber mounted anti-vibration bracket, fitted to any alloy inlet manifold. Engine cooling is taken care of by our forced air cooling system, using a crankshaft mounted fan, ducted around the cylinder and head by our all-new injection moulded engine cowling, which also neatly houses the pulse fuel pump. The ignition CDI unit is also directly mounted to the engine on a custom bracket, making for an incredibly neat installation. The engine has a 3 stage oil filtering system, with a replaceable oil filter that is easy accessible and a glass oil level window so you can easily check the oil level. The exhaust silencer and downpipe are made from 304 Stainless steel for longevity, with a chrome plated engine-mounted mild steel exhaust bracket which houses our heavy duty sprung exhaust mounting clamps to allow for thermal expansion/contraction of the exhaust under all engine temperatures. Every V5 engine is fully tested on our in-house test rig prior to being signed off for customer release.
The optional mounting method is the Bailey Quick Release Propshaft (BQRP), which utilizes six 8mm dowel pins instead of threaded studs, so the propeller fits over the six dowel pins, again sandwiched by neoprene gaskets and then the quick release plate fits on last and a single bolt fixing secured with an 'R' clip enables fast and easy propeller removal and more evenly distributed clamping pressure. The Bailey Quick Release Propshaft (BQRP) is a very popular option and is supplied with its own bespoke prop bolt fastening spanner.
Technical information for Bailey V5 paramotor, manual start, 1.30m propeller.
Notes 1. Static thrust figures are measured on our own calibrated test rig and are averages across a variety of differene atmospheric conditions (temperature, pressure, humidity) 2. Fuel consumption figures are based on an 85Kg pilot with Ozone Speedster 24, wing on fast trim. 3. Noise level is measured to DULV (German regulating authority) standards, range 100 metres overhead, paramotor at wide open throttle. V5 (Manual Start Only) Paramotor - 1.30m propeller, all alloy construction £5600.00 incl VAT Options:-
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Overview
The chassis is quite different to our previous designs and has integral pick-up points for the all new Active hang bars.
This pivot placement was one of the key design briefs when we were planning the V5 engine and chassis layout. The result is a pivot point that is as close as possible to the ideal position, rearward of the harness plane and in line horizontally with the prop centre, extensive flight testing by many different size/weight pilots has proved that the system not only remains vertically stable with large or small power changes but also exhibits virtually zero torque. 
Weight shift steering ability is further enhanced by the pivot geometry of the hang bars, when viewed from the front the bar follows a downward and inward path, this exaggerates the weight transfer onto the down going riser in the direction of turn by its inward movement. . A static amount of riser offset is built into the bars also so at a cruse power setting the bars (and therefore the seat) can remain level. 
The V5 safety cage is a single hoop, 4 piece split design that is clear anodised for added durability and incorporates alloy inserts to prevent any unwanted movement. Each quarter features integral line fastening loops and have our own specification, black nylon cage safety line woven through them. 
All Bailey V5 paramotors are supplied with a bespoke padded cage quarter bag and propeller covers.
The V5 is the fifth generation of the world championship-winning Bailey Aviation 4-stroke engine, offering smooth, progressive power with low noise levels and superior fuel consumption. The culmination of 10 years producing engines, the V5 is our lightest and most compact design, offering effortless pull starting and a wide power band from idle to maximum RPM.
We exclusively use the superb carbon-composite propellers made to our design by Helix Carbon GmbH in Germany. These top quality propellers are a 2 piece 1.30m, 2 blade design that slide together to produce an ultra-strong and lightweight set-up that can be easily stowed in the their supplied Bailey Aviation covers.
The V5 uses a new bespoke harness designed in collaboration between Bailey Aviation and Sup’Air of France.
The V5 throttle has a lightweight alloy core, with black silicone anti-slip handgrip and ergonomically designed alloy lever with an integral adjustable webbing strap. The throttle cable itself is housed in a hard wearing textile braided covering that is heat shrunk to keep it fully sealed. A recessed high quality stop button is fitted to all V5 models. The throttle itself can be adapted from right to left handed use with no tools required in a matter of seconds.
