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Hornby R2705TTS Grand Central Trains Class 43 HST with DCC and Twin Hornby TTS with Mega Base Speakers by Roads & Rails. Separated Front Side View
Hornby R2705TTS Grand Central Trains Class 43 HST with DCC and Twin Hornby TTS with Mega Base Speakers by Roads & Rails. Box View

Hornby R2705TTS Grand Central Trains Class 43 HST with DCC and Twin Hornby TTS with Mega Base Speakers by Roads & Rails.

Hornby R2705TTS Grand Central Trains Class 43 HST. Fitted with Hornby DCC Sound and Mega Base Speakers by Roads and Rails in both powered and dummy cars.
Stock Level: 1
Part Number: Hornby R2705TTS
Array
£329.99
Our Price: £329.99
Description

Hornby R2705TTS Grand Central Trains Class 43 HST. Fitted with Hornby DCC Sound and Mega Base Speakers by Roads and Rails in both powered and dummy cars.

The TTS decoders fitted within this HST is the latest firmware from December 2019.

Prototype:

Originally conceived as a cheaper, more reliable alternative to the Advanced Passenger Train in the early 1970s, the British Railways Board authorised the development of a prototype High Speed Diesel Train with two locomotives designated as Class 41. These aerodynamic power cars were constructed by British Railways Engineering Ltd at their Crewe Works and emerged in June and August 1972, fitted with Paxman Valenta 12RP200L engines, developing 2,250 hp.


The power cars, having initially been numbered 41001 and 41002, were later given the coaching stock numbers 43000 and 43001 for operating trials on the Eastern Region and subsequent transfer to the Western Region. Following evaluation and a change of name to High Speed Train, British Rail placed orders for similar trains for use on the Western, Eastern, Scottish and London Midland Regions.


When originally built at BREL’s Crewe Works, the InterCity 125 units were considered to be diesel multiple units and allocated as Class 253 to the Western Region and Class 254 for the Eastern Region. With the introduction of Trailer Guard Second (TGS) carriages, later power cars had no guard’s equipment installed and by 1987 most power cars were simply classified as Driving Motor (DM), although they still had luggage van space, retaining a window by the luggage door on each side.


Following problems with the power cars and the operational ease of removing power cars to perform scheduled maintenance, unit formations were abandoned, resulting in the Class 43 locomotive prefix being adopted. The 197 Class 43 power cars produced between 1976 and 1982 were numbered 43002 to 43198 and are officially the fastest diesel units in the world. The units have an absolute maximum speed of 148mph (238kph), which is the current world diesel traction record, set on November 1, 1987.


In 1987, for trial purposes, eight of the Class 43s were converted for use as Driving Vehicles with the Class 89 and Class 91 locomotives. The power cars were fitted with buffers and Time Division Multiplex (TDM) equipment that allowed them to directly control the other locomotive. Following the delivery of British Rail’s Mk 4 coaching stock, the TDM equipment was removed and the power cars reverted to their normal duties, retaining their buffers. During the late 1990s, twenty five of the Class 43s were updated with Paxman 12VP185L engines in an attempt to reduce fuel consumption and emissions; however these proved to be less reliable in service than was hoped.


The HST fleet has seen many changes to the Train Operating Companies since privatisation in 1993, but Class 43 driven sets continue to operate across the rail network, despite being displaced from some East Coast and West Country routes by the arrival of Hitachi’s IEP 800 units. First Great Western, East Midlands Trains, Cross-Country and Network Rail continue to operate Class 43 units and displaced units from First Great Western have been sent to Scotland, to operate under ScotRail.

Technical Specification & Detail

Gauge

00

Length

2 x 235mm 

DCC Type

Dual TTS Digital Sound Fitted with Dual Mega Base Speakers

Lighting

Bi-directional front white (3 of) rear red (2 of)

Period/ERA

Era 9 

Operator/Livery

Grand Central, Black

Designer

Sir Kenneth Grange 

Entered Service

1975

Minimum Curve

R2 

Motor

5 Pole Skew Wound

Wheel Configuration

Bo-Bo

No of Axles Driven

Motorised Car – 4 driven through double flywheel and Cardan driveshafts   

Cab

Detailed and internal LED lighting with manual opening cab doors.  

Drive

Drive on all axles of the motorised car using Cardan shafts coupling from motor to drive boggy gearboxes. 

Build Structure

Plastic body and cast alloy chassis on the motorised car with plastic chassis on the non-motorised car. Roof body and bogie detailing. 

Age Suitability

14+

 

 

TTS Decoder Function List

F#

Sound Description

Play Structure

F0

Headlight/Rear-Light

Toggle On/Off (Loco Direction Dependent)

F1

Engine Start/Stop

Various (Toggle On/Off)

F2

Horn High-Low

Plays Once (Momentary Action)

F3

Horn Low-High

Plays Once (Momentary Action)

F4

Brake Squeal

Plays Once (Momentary Action)

F5

NOTCH Up

Activates on Momentary Switch Control

F6

NOTCH Down

Activates on Momentary Switch Control

F7

Return to IDLE

Activates on Momentary Switch Control

F8

Thrash

Toggle On/Off

F9

Cold Start Override

Toggle On/Off

F10

Compressor

Plays until disabled (Toggle On/Off)

F11

Cab Door Slam

Plays Once (Momentary Action)

F12

Fan

Plays until disabled (Toggle On/Off)

F13

Horn Long High

Plays Once (Momentary Action)

F14

Horn Long Low

Plays Once (Momentary Action)

F15

Primer

Plays until disabled (Toggle On/Off)

F16

Slow Flange Squeal

Plays until disabled (Toggle On/Off)

F17

Driver's Safety Device (in Cab)

Plays Once (Momentary Action)

F18

Horn Short Low

Plays Once (Momentary Action)

F19

Horn Short High

Plays Once (Momentary Action)

F20

Windscreen Wipers

Plays until disabled (Toggle On/Off)

F21

AWS Test (in Cab)

Plays Once (Momentary Action)

F22

Fire Bell Test

Plays Once (Momentary Action)

F23

Guards Whistle

Plays Once (Momentary Action)

F24

Guard to Driver Buzzer (in Cab)

Plays Once (Momentary Action)

F25

Aux Lighting (if used in locomotive) 

Toggle On/Off