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| Type | Commercial Circular |
|---|---|
| Topic | train-services |
(OLD) SS-1, SS-2, etc., were used for second-class sitting coaches.
CLASSIFICATION & NOMENCLATURE OF COACHING STOCK
ROLLING STOCK
Rolling stock comprises all the vehicles that move on a railway. It usually includes both powered and
unpowered vehicles, for example locomotives, railroad cars, coaches and wagons. However, in some countries
(like UK), the term is usually used to refer only to non-powered vehicles; specifically excluding locomotives which
may be referred to as running stock, traction or motive power.
CLASSIFICATION OF ROLLING STOCK
Rolling stock are classified into following two groups, according to the availability of power source to
move on the track
SELF-PROPELLED VEHICLE: These are railway vehicles that do not require a separate power source to move
over the railway track. For example- Locomotives, Rail Cars, Electrical multiple Units (EMUs), Diesel Multiple
units (DMUs) Diesel Breakdown Cranes, Motor trolleys etc.
NON SELF-PROPELLED VEHICLE: These are railway vehicles that need a separate power source like
locomotives to move over the railway track. For example- Coaching Stock and Freight Stock
FUNCTION OF ROLLING STOCK
❖ Locomotives: These are source of power used to haul a train, a coach or a wagon etc.
❖ Coaching stock: Coaching stocks are used for transporting passengers.
❖ Freight Stock: Freight Stocks (Wagon) are used mainly for transporting goods and live stocks etc.
❖ Diesel/ Steam Break down Crane: These are rail mobile cranes used in case of railway accident for lifting loads,
derailed wagon or coaches. Diesel/ Steam Break down Crane are part of accident relief trains which are used
for rescue & restoration operation.
❖ Motor trolleys: These are used for inspection of railway track by staff of engineering department.
COACHING STOCK
The coaching stock comprises all the vehicles in which passengers move, including self-propelled vehicles
such as rail cars, electrical multiple units, goods wagons intended for coaching traffic etc.
CLASSIFICATION OF COACHING STOCK (According To Design & Construction)
❖ IRS Coach (wooden body)
•
First generations coaches
•
Fully from Timber
•
Serious consequences in accidents
❖ MAN-HAL (BEML) Coaches
1948- 50 Hindustan Air Crafts Ltd. Bangalore
Started manufacturing Steel bodied coaches at BEML Bangalore.
❖ SCHELERENE Coaches
In the year 1955 ICF Was Set in Collaboration with Swiss
Car & Elevator Manufacturing Corporation,
Zuric, Switzerland for integral design.
•
Fabricated bogie Coil primary springs
•
Laminated secondary springs
•
Speed potential of 96 km/h
❖
ICF All coil bogie coaches
•
Secondary suspension modified to Coil springs
•
Side bearers to transfer body weight in place of centre pivot
•
16t bogie for AC coaches
•
Adoption of Air brakes
•
Bogie mounted air brake system
•
Composition brake blocks in place of Cast Iron
•
Speed potential 110 Kmph.
❖ RCF set up at Kapurthala to make coaches to ICF design.
Variants developed like:
AC self-generating and End-on-generating
2-tier AC, AC chair cars, 3-tier AC
❖ LHB Coach (Linke Hoffman Busch)
•
Stainless Steel Body
•
Fitted with FIAT Bogie
•
Improved Ride Index
•
Disc Brake with WSP device
•
CDTS in lavatories
•
Tight-lock CBC
•
Speed potential 160 Kmph
❖ HYBRID Coaches
•
Duronto Coach
•
Stainless Steel Body
•
ICF Bogie With Air Spring in secondary suspension
•
Speed potential 120 Kmph
❖ DOUBLE Decker Coaches
•
Hybrid design Coaches
•
Two Stake Sitting arrangement
•
Reduction in floor height in between bogies.
•
Chair cars.
•
Howrah-Dhanbad Double Decker Express.
❖
EMU/DEMU Coaches
• Operated as multiple unit (1 unit consists of 4 coaches)
• Mostly used for passenger trains in suburban sections
•
ICF designed coach with Air Spring in secondary suspension
•
Fitted with SCHAKU Coupler.
•
Having Electro-pneumatic Brake system.
•
Provided with separate VENDOR Compartment.
❖
According To Speed Po
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