The bell 47 is a singleengine twoseat light utility helicopter produced by the usamerican manufacturer bell aircraft corporation, later bell helicopter company, today bell helicopter textron. We hold over 350 faapmas and are highly dedicated to the continued availability of parts for this aircraft. A twobladed, single engine based on the previous model 30 prototype. Rotor mast also known as the rotor shaft, the mast connects the transmission to the rotor assembly. Equivalent to the military yrhtl1, powered by the franklin o3351 piston engine. The bell 47 is a single rotor single engine light helicopter manufactured by bell helicopter. Helione specializes in maintenance services for hydraulic accessories that includes servos, cylinders, pumps, brakes, dampers, valves and filter units. A test cell for missioncritical aerospace gearbox testing. Designed by arthur young, the bell 47 became the first helicopter certified for civilian use on 8 march 1946. Health monitoring survey of bell 412ep transmissions.
A hightech flight deck and adaptable cabin design make it an extremely costcompetitive, and capable for any challenge. From the fleet of over 150 humsequipped bell 412ep helicopters, only 12 aircraft encountered a gear box fault in the course of 10years of fleet data collection. Bell prepares to build first 525 aviation international news. The gearbox clutch housing case and clutch pad for 47cc 49cc pocket bike, atv, dirt bike, mini quad. An agricultural and utility version, the bell 47b3, was made with open crew positions and was also modified into the bell airmailer for the us postal service to use. The bell boeing v22 osprey is an american multimission, tiltrotor military aircraft with both vertical takeoff and landing, and short takeoff and landing capabilities. Gents, does anyone know what the torque spec is for the bolts connecting the bell housing to the gearbox.
The designation for bell 47 is us army duties was h sioux. When is it time to overhaul your bell 47 helicopter prior to reaching 1200 hours in. Spur gear manufacture, helical gear manufacture bell gears. G systems software controls 20 pid loops for the main rotor test cell and seven pid. If it is, it may suck in and restrict the flow of air to the air filter in the wrong. Overview the main rotor is a fourbladed, softin plane design system vne 140 kts main rotor diameter 35 feet composite hub and individually interchangeable blades tail rotor is a twobladed teetering rotor tail rotor diameter 5. Centrifugal clutch in a helicopter transmission pprune forums. The bell 47 was originally certified with wood tail rotor blades, and for the sake of this discussion these blades are not considered. Our team of highly skilled engineers have extensive experience in all facets of gear manufacture and design. Improved version of the bell 47, powered by a 117kw 157hp franklin o3351 piston engine. Please contact the sales department directly at 5076656149 for parts related questions and to place your order.
This aluminum bellhousing can be fitted to any year spitfire and weighs 6. Twoseat hds with skid landing gear, stretcher carriers, and franklin o3355. The first commercially certified flybywire helicopter is designed with. Sb47 has an extensive inventory of new and surplus parts in stock to support the model 47 fleet. Fault code reference truckfaults fault code diagnostic source.
Centrifugal clutch in a helicopter transmission pprune. Although the company was established as a gear manufacturer, it became a natural progression to offer a service for the complete refurbishment of industrial gearboxes, and to this end, a separate unit was established solely for this purpose. For turbine powered items the fasttrack locator does the work for you, just submit your request and our locator sends out to our extensive vendor list that responds directly to you. Bell 47 spare parts special check out our bell 47 lot we have for sell part number description quantity. Its a video i made from several hours of machine work and many short videos i made using my gopro hero 3 camera. Two seat hds with skid landing gear, stretcher carriers, and franklin o3355. Bell helicopter 47 top transmission case part number 47 620911005 new. Bell 47 auxiliary hydraulic system reliable replacement for.
It is designed to combine the functionality of a conventional helicopter with the longrange, highspeed cruise performance of a turboprop aircraft the failure of operation eagle claw during the iran hostage crisis in 1980. Bell helicopter bell 47 specifications technical data. Backmolding a carbonfiber reinforced preform creates a gearbox housing that targets aluminum counterparts used in electric vehicles and elsewhere. Windows are fabricated using stateoftheart manufacturing processes from highquality acrylic and. Additionally, human factors software was used to model various. Bell has already assembled the 525s tailrotor assembly actuator, elements of the mainrotor gearbox and the accessory gearbox. The bell 47 was also produced under license by agusta italy, kawasaki heavy industries. Nah mate, a 1980 hj 47 does have the removable crossmember under the gearbox, so thats good. Bell 47 main transmission, rear drive shaft and tail rotor gear box. Bell gears are a company of gear manufacturers and gearbox refurbishment specialists established since 1947 on our present site. In one case, a gearbox chip indication was also present at the same time as the ci detection. The motor output attaches to the closingend gearbox.
All content is posted anonymously by employees working at gearbox software. Gearbox software 101 e park blvd ste 1200, plano, tx 75074. Transmission just as it does in a motor vehicle, a helicopters transmission transmits power from the engine to the main and tail rotors. Tail rotor info bell 47 helicopter association inc. Developed by flysimware, the bell 47 addon for fsx. The bell 47 was to rotorcraft what the j3 has been to fixed wing ga talk about an iconic airframe. Bell 412, 412ep, bhvm kit aeronautical accessories. Oct 10, 2015 i know of 3 only, but it is not said that those are the only ones. This caused a problem when the helicopter was operating off of a ship. How many years after the bell 47 came out did they figure this out. The first metal tail rotor hub and blade assembly used was the 47 641058, which included blade 47 641102 of various dash numbers. Check that the induction hose is not creased inside the clamp on the top of the engine basket at the rear of the transmission where it turns thru nearly 90 degrees.
The helicopter broke up in flight 2 while traveling about 229 mph 199 kn at an altitude of about 2,000 feet 610 m. Bell 47 auxiliary hydraulic system reliable replacement. Its easier to reuse the same tail rotor and flip the gearbox, rather than redesigning the whole tail rotor and keeping it as a pusher. Bell gears are a well established company in the gear manufacturing industry, with over 50 years experience.
The 600 series main transmission is susceptible to oil leaks read this. Transmission 4wg94, at316534, bell 315sj,bell parts, bell spares, bell spare parts, bell logger, bell cane loader, bell used parts, bell bushes, new engines air cooled, earthmoving spares, zf gear transmission 4wg94 for bell 315sj, part nr. The kawak bell 47 auxiliary hydraulic pump is designed to provide an inexpensive, robust, and reliable replacement for pumps which have been previously installed. Bell 47g history and technical description heliarchive. With helix native, you get the power and tonal accuracy of awardwinning hx modeling technology in a plugin format. The transmissions main gearbox steps down the speed of the main rotor so it doesnt rotate as. Reach further locations with our wide aircraft range, designed to get you where you need to go. Agriculturalutility version with open crew positions. Helione has the capability to service, repair and overhaul helicopters hydraulics. The 2016 bell 525 relentless prototype crash occurred during a test flight on july 6, 2016 near italy, texas, destroying the prototype bell 525 relentless helicopter and killing the two occupants. We offer free classified ads to post your for sale or wanted items. The first metal tail rotor hub and blade assembly used was the 47641058, which included blade 47641102 of various dash numbers. I know of 3 only, but it is not said that those are the only ones. Gearbox to bell housing gasket photo the cj2a page forums.
G systems built two test cells for the bell helicopter 525 relentless drive. The output of the speed decreases gear box attaches to the input of the test transmission, thereby closing the loop. Nov 14, 2017 bell 407 rotor and transmission systems 1. The transmissions main gearbox steps down the speed of the main rotor so it doesnt rotate as rapidly as the engine shaft. The bell 47g was primarily used for the transportation of passengers and goods, agricultural operations, transport of mail, observation, reconnaissance, photographic flights and school. Bell model 47g threeseat general utility helicopter. The bell h, and 47, used in mash, also had a vertically mounted franklin or lycoming pistion engine, stated here. At316534 we have a service exchange units available and need to inspect your unit as part of the exchange. Just like the helix floor, helix rack, and helix lt hardware guitar processors, the helix native plugin provides the sound of vintage and modern amps, speaker cabs, mics, and effects, along with broad signalrouting functionality and a straightforward user interface. The bell 47 and the bell 47a were both powered by franklin piston engines. The helicopter broke up in flight while traveling about 229 mph 199 kn at an altitude of about 2,000 feet 610 m. Armys future attack reconnaissance aircraft fara program builds on our decadeslong legacy as an innovator in reconnaissance rotorcraft supporting the maneuver force. The selection of the bell 360 invictus to continue in the u. Bell 505 jet ranger x capable and flexible utility and.
Bell helicopter 47 top transmission case part number 47620911005 new. First to appear with a moulded goldfish bowl canopy. The mast rotates the upper swash plate and the blades. Fault code reference truckfaults fault code diagnostic. Bell helicopter 47 upper transmission case part number.
A second gearbox does the same for the tail rotor, although the tail rotor, being. Bell 47 g g2 g2a g2a1 g3b ohs sioux g3b1 g3b2 tht g3b2a g3 hk sioux g4 g4a g5 g5a htl6. Bell 47 gear free wheeling pn 47 6206831 for sale online. Bell 47 spare parts special southern rotorcraft usa inc. The military version of the 47, the bell 47b yrhtl1, uses a franklin o3351 engine. Operators, versions and serials of the bell 47 helicopter.
Straight from his studio at gearbox software, we talked all about his work as vo director for borderlands 3. Sb47 has also invested in state of the art 3d design software to support. Bell 47 main transmission, rear drive shaft and tail rotor gear box the 600 series main transmission is susceptible to oil leaks read this cooling fan belts see bell47 engine. A h55f box from a fj 75 will work as well since the input shaft is the same as the 2h. A 149kw 200hp variablespeed directcurrent dc motor powers the test stand and controls the speed.
On the early bell 47 models when they took out the springs from the centrifugal clutch as soon as the engine fired the rotor started turning. Apply to music teacher, science teacher, designer and more. We are pioneers who have challenged whats possible for sound barriers, lunar missions, tiltrotor systems and commercial helicoptersand today were. The bell helicopter vibration monitor bhvm kit and altair engine trend monitor system provide drive train health and engine monitoring to improve aircraft serviceability and maintainability between regularly scheduled inspections and overhaul periods. The kawak auxiliary pump drive is also fully compatible with our chemical pumps and boom valve assemblies. The switch was introduced on the hh1h and retained for latemodel uh1hs and 205a1s, as shown in the photo above, plus the huey ii and 210.