Copyright Ronnie Hoye

The Northern General Transport Company
1964
AEC-Park Royal Routemaster
Park Royal H41/31F

Pictured at the Seaburn Bus Rally, this 1964 Routemaster has been beautifully restored to its original livery and is now part of the North East Bus Preservation Trust Ltd collection; it was one of the second batch to be delivered. I know the two batches differed slightly, but I’m not sure if it was only that the first ones had rear wheel spats. Prior to the Routmasters, the last front engine half cabs to carry the Northern name were the 1958 PD3′s with Orion bodies ‘Sunderland District’s were rear door Burlingham bodies’ before the Routemasters arrived on the scene their were then three or possibly four batches of PDR1 Atlanteans with both MCW and Roe bodies. Northern ran a lot of longer routes alongside United, when they introduced the front entrance Bristol Lodekkas Northern decided it was time to replace the rear door Park Royal bodied PD2′s on these routes with a more modern vehicle, but rather than use Atlanteans they bought the Routemasters specifically for the purpose. I think reliability may have been a factor as the early Atlanteans were ‘A tad temperamental’ Northern specified the Leyland O600 engine and the same gearing as the Green Line RMC’s, as far as I’m aware they gave excellent service and reliability was never a problem. Our depot didn’t have any so I must be one of the few drivers at Percy Main to have driven one on service, I was on the number 1 which ran between Whitley Bay and Lobbly Hill Gateshead, my bus ‘an Atlantean’ broke down at Team Valley and a replacement was sent out from Bensham depot, it turned out to be a Routemaster. I only drove it for a couple of hours but found it a very nice vehicle to drive.

Photograph and Copy contributed by Ronnie Hoye

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13/05/12 – 08:41

…..and I spent many a happy hour driving AEC and Leyland engined ex LT RMs in Reading for Reading Mainline. I now have the occasional charge of a preserved green RML. Still nice to drive but unfortunately, like most RMLs, re-engined.

David Oldfield

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13/05/12 – 18:49

What make was/were the replacement engine(s) and did the conversion entail any gearbox/transmission changes, David? In the back of my mind, Iveco comes to mind.

Chris Hebbron

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14/05/12 – 07:43

There several experiments using Cummins C (Javelin 8.2), Scania (9.2), DAF (?) and IVECO (7) engines. DAF never got beyond the one experimental, the others went into "mass" production. I don’t know the numbers, nor how it was decided to allocate which engines to which (batches of) vehicles.
These vehicles tended to keep their AEC/LT (semi)automatic gear-change. The vehicle I regularly drive – and will be doing so next week in Slough – is a 1966 RML with IVECO engine with original gearbox which still operates in either semi or fully automatic modes.
From the cab it is very obviously a re-engine although, surprisingly, from the saloon it sounds more like a "proper" vehicle. I can only surmise that this is because it still has the original gearbox. It does not, however, have the performance of an AV590 or 0.600 – nor the real sound.
The last refurbishments, however, were also made to comply with "Euro…" regulations and have the Cummins B (5.9) engine and Allison fully automatic gearbox both found on the Dennis Dart. They are therefore cruelly, but aptly, known as "Dartmasters". The latter have also totally changed the character of the cab.

David Oldfield

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14/05/12 – 09:29

Thanks, David, for that interesting background information. It’s also interesting that the original engines performed better than their replacements. Maybe some of it is strapping the engines up with ‘save the world’ technology, understandable, but not conducive to performance or fuel consumption!

Chris Hebbron

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14/05/12 – 14:57

As a P.S. to my comments above. It’s all speculation, but given the reputation for build quality and reliability that the Routemaster built up with Northern, I think it’s safe to assume that if the RML had gone into production AEC would have loaned a couple to Northern for evaluation purposes, then who knows?

Ronnie Hoye

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14/05/12 – 18:30

Ronnie; do you mean RML or FRM? The Northerns were front entrance RMLs (or RMFs in London language). FRM1 was the rear-engined prototype which Leyland knocked on the head because it competed with its own new Atlantean.
There should have been three prototype FRMs – one of the other in Sheffield Transport colours. Alan Townsin said that both Yorkshire Traction and Northern General had already shown an interest in the new model "off the drawing board". Having tested it for "Bus and Coach" in August 1967 he concluded that "…..the general impression was of a vehicle which made everything previous seem out of date, in much the same way as the RT in its day."

David Oldfield

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14/05/12 – 18:46

It’s an age thing David, I did mean the RMF

Ronnie Hoye

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15/05/12 – 07:34

It’s an age thing for most of us who use this site! What day is it nurse?

David Oldfield

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15/05/12 – 07:36

I wish I’d been issued with fingers instead of thumbs, FRM, the one that Leyland couldn’t wait to kill off, in much the same way that they did with the Fleetline, as the Americans say ‘if you can’t beat them, buy them’

Ronnie Hoye

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15/05/12 – 07:38

Chris, can I just point out that David’s comment about the performance of replacement engines was specific to IVECO, which was the smallest of the units in the original experiment. I recently had a ride on an RM with a Scania engine and it went like a bat out of hell! It also made some nice traditional sounds which were entirely compatible with the RM’s transmission.
As regards FRM1, this still exists of course, and it is very special. I once had the pleasure of riding on it, and it felt like meeting the Queen!

Peter Williamson

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15/05/12 – 13:31

Very interesting comments, David, on the FRM. I never saw the ‘Bus and Coach’ article, (yes, I ought to have seen it!), and have never seen any pictures of the prototypes, but it sounds as if it had great potential. Leyland, as Ronnie points out, were eager to kill off anything that competed with a Leyland product. Operationally, the Fleetline was a far better bet than early Atlanteans, being more economical and less expensive to maintain, and it would have been a boon to the industry to have had an AEC alternative, too. Leyland’s arrogance, which manifested itself in many ways at that time, was a tragedy for the whole of the British motor industry.

Roy Burke

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15/05/12 – 18:00

There were other interesting possibilities which Leyland killed at birth. The only really decent and successful rear-engined single-decker was the Bristol RE. It eventually had the option of Leyland engines (which I approve of) but another option "on the books" which was neither promoted nor taken up was of the AH691 AEC engine. Ulsterbus (and all offshoots) had shown a great interest in the AEC option but were dissuaded by Leyland from taking it up – just as later, New Zealand were "persuaded" to take the Leyland 510.

David Oldfield

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16/05/12 – 07:47

In some ways fitting a Scania engine into a Routemaster is the supreme irony. The Routemaster started life with AEC, they in turn became part of British Leyland ‘not to be confused with Leyland Motors’ At the time of the ‘merger’ AEC had designs for a new vehicle, but BL in their wisdom or otherwise decided not to go ahead with it, all the plans ‘including those for a new engine’ were sold to Saab and the result was the 80 and 100 series and every vehicle since, so I suppose you could argue that by using an AEC designed Scania engine in a Routemaster the wheel has in effect turned full circle

Ronnie Hoye

Photograph by ‘unknown’ if you took this photo please go to the copyright page.

London Transport
1964
AEC-Park Royal Routemaster
Park Royal H28/36R

Here is a nice action shot of a standard Routemaster, and it’s probable out accelerating the mini next to it. This particular vehicle had the Leyland O600 9.8 litre diesel engine and it would of had a throatier sound than the AEC engine. This was due to the fact that London Transport did not use air filters for some reason and it was the air entering the Leyland engine rather than the exhaust that produced the throaty sound. If memory serves me correct I think the London Transport practice of not fitting air filters meant that the RT had that lower bonnet line than the Provincial Regent.
The main reason for posting this shot is I visited Southport recently and found an excellent second hand bookshop that had a good selection of bus books and was lucky enough to get a copy of ‘Blue Triangle’ by Alan Townsin. One thing I noticed in the chapter for the Routemaster was that the prototypes had the radiator and fan positioned under the floor behind the engine bay. This explains how the first RM prototype achieved engine cooling when having no radiator just a solid panel with a London underground type logo on it, I have searched high and low for a shot on the internet to no avail I’m afraid. But fortunately by the time the first production model RM 8 appeared in 1958 the radiator and fan had been moved back to the normal position in front of the engine. This meant that the bonnet length had to be increased by 4 inch though to accommodate them and the good looking Routemaster that we all know came to be.

A full list of Routemaster codes can be seen here.

Bus tickets issued by this operator can be viewed here.

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Photograph taken by Colin Tait in 1955                                          

Here is a photo of RM1 SLT 56 with the solid front plate and bullseye motif, it’s worth observing that this prototype had no opening windows in the upstairs front.
Photograph courtesy of the London Transport Museum.

Chris Hebbron

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The final design was far more balanced, and arguably more attractive, than the original.
There was an interim design of grille which had the LT bulls-eye on the round protuberance (just visible above the grille in the first photograph) and no "AEC" triangle at the top of the grille divider.
The final version (shown) had the LT bulls-eye but not the letters "AEC" on a triangle in the usual place.
There were, over a period of time, variations in the depth of the ventilation grille beneath the destination/route number indicators. (RM 1 is shown with standard route indicators – which it did not carry originally).

David Oldfield

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Your comment about the throaty sound of the Leyland-engined RMs brought back fond memories of riding on one or two of them while I was on a week-long course at CAV in Acton in the early 80′s. The induction roar was absolutely gorgeous, and all the more audible as you say, due to the lack of an air filter. West Yorkshire Road Car had some Bristol RELH coaches (ECW and Plaxton bodies) fitted with 0.680 Leyland engines, which always sounded grand on the road. However, they had a similar induction roar when being tested on WY’s dynamometers at Central Works, as they were tested without air filters. I used to love running such engines in, and then fully bench-testing them on the dynamometers after overhaul. It was lovely (and quite addictive) to hear that roar – even with ear protectors on! The Routemasters had a lovely ‘song’ whether AEC or Leyland powered, as the accompanying melody from the transmission was so gentle and tuneful. Sadly, the tune went off somewhat when they were re-engined and re-gearboxed later in life, but at least it kept them running. P.S. Does anyone else think that someone has lost the plot somewhere with the ‘Borismaster’?

Brendan Smith

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Simple answer – "Yes"
I drove for Reading Mainline on a casual basis.
Everyone knows I’m an A(mbassador) for E(xcellent) C(oaches) – and buses – but our two "Leyland" Routemasters were great fun and didn’t half shift (especially up – and down – Norcot Hill).

David Oldfield

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22/04/12 – 07:34

Brendan, I’m so glad someone else is clearly so addicted to the Routemaster "melody". I fell in love with the Routemaster sound as a young lad and, some 40 years later, I am still totally absorbed by the unique harmonies of the engine (has to be AEC or Leyland) and the various parts of the transmission.

Mike Wakeford

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22/04/12 – 16:10

What engines were used to re-engine the RM’s? I understood at one time that they were Italian, but would like to know if this was so.

Chris Hebbron

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23/04/12 – 05:44

Chris, some of the power units used to re-engine the Routemasters were indeed Italian, these being of Iveco manufacture. Iveco is owned by FIAT, but I seem to recall it collaborated with Magirus and Ford to produce a range of commercial vehicles in the 1980s/90s. (The Ford/Iveco EuroCargo truck springs to mind). Other engines were also fitted to the Routemasters in later life, notably by Cummins and Scania. It was rumoured that Ken Livingston had planned to have the original Routemaster engines replaced with Gardner units at one point, as they had an excellent reliability record, were very economical, and were of British manufacture. The cost of the programme was said to have been too great however, given the perceived extended lifespan of the RMs/RMLs at the time, and so mass-produced engines were used instead. One also wonders if Gardner would have been able to fulfil an order for over 500 engines in time. Their engines were all hand-built from start to finish, and as well as building bespoke engines for the automotive industry, Gardner also built engines (plus gearboxes and pumps) for marine use. Therefore it would probably have been difficult to increase production simply by speeding up the various processes, or transferring production from marine to automotive. Such a shame though that we were cheated out of hearing the sounds of a ‘Gardner Routemaster’. I’m sure Mike and I would have found such a gentle beast just as delightful to the ear as the original AEC and Leyland-powered ones had been.

Brendan Smith

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23/04/12 – 05:45

Chris. Three different engines were originally tried out and used to re-engine RMs. Cummins C (ie 8.3 Dennis Javelin), Scania DS 9 and IVECO 7.7. There was at least one DAF tried as well. The majority were Cummins, minority Scania, IVECO somewhere in the middle. IVECO is Italian (FIAT), but most of their PSV output is made in Spain. Later re-engines (like the "Heritage" RMs in Central London) have the Cummins B (5.9) as in the Dennis Dart and are know – less than affectionately – as Dartmasters.
The well preserved RML that I drive regularly has the IVECO engine – not a patch on the AEC or Leyland originals.

David Oldfield

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23/04/12 – 05:46

I heard they (or some of them) were "Fix It Again Tomorrow’s."

Stephen Ford

Photograph by ‘unknown’ if you took this photo please go to the copyright page.

London Transport
1962
AEC-Park Royal Routemaster
Park Royal H38/31F

Whilst on loan to Halifax Corporation this was London Transports first front entrance Routemaster, it also had a tow bar fitted so it could tow a luggage trailer when doing airport duty. I think there was a connection with ‘British European Airways’ somehow but not over sure of exact detail If you know, let me know, please leave a comment.
There wasn’t many front entrance Routemasters compared to rear entrance even the Green Line coaches were rear entrance although they did have platform doors, nice seats and fluorescent lighting. The Routemaster really was built for town work having 9.6 or 11.3 litre AEC engines or a 9.8 litre Leyland Engine with a gearbox that gave the driver the choice of semi-automatic or fully automatic. Put all that power and the automatic gearbox together in a light chassis less body And you have a very nippy bus.
In one of my reference books on buses which I use for information I came across the following sentence.
”London introduced front entrance Routemasters (FRM) in 1967 with a rear mounted A.E.C 11.3 litre engines and Park Royal bodies seating 41 on the upper deck and 31 on the lower deck, and a laden weight of 13.55 tonnes.”
A Rear engined Routemaster! now that’s a new one on me can not find any photos on line or any information anywhere. The book was published by the Blandford Press so I would of thought the content would of been carefully checked. So all you Routemaster followers out there let me know if you know something about this mystery rear engined AEC, please leave a comment.

An interesting article regarding the front entrance Routemasters is here.

A full list of Routemaster codes can be seen here.

Bus tickets issued by this operator can be viewed here.

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FRM1 (there was only 1 built) it is still around, it is part of the London Transport museum collection and I think it is kept at Acton. This link should reveal all! http://www.countrybus.org/FRM/FRM.html

If that dose not work search for IAN’S BUS STOP and click on the FRM in the list of London bus classes. Hope that helps.

Michael

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The rear engined Routemaster FRM 1 was unique, as was the above pictured RMF 1254. It was used by British European Airways prior to the purchase of their front entrance Routemasters.
In addition to Halifax, RMF 1254 was also loaned to Liverpool Corporation and East Kent, whilst in London Transport ownership.
It was fitted with a Leyland engine before being sold to Northern General in November 1966, where it lasted until October 1980 and is also now in preservation.

Pete Cook

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RMF1254 was exhibited at the 1962 Earl’s Court Commercial Motor Show, and was later involved in service trials with BEA. It did indeed tow a luggage trailer whilst with them, and the experiment proved successful enough for BEA to place an order for 65 short forward entrance models. These too towed luggage trailers. They were powered by AEC AV690 engines developing 175bhp for use on the M4 motorway. RMF 1254 (Routemaster Forward entrance) was later sold to Northern General, where it joined their fleet of 50 similar vehicles. The rear engined Routemaster FRM1 (Front entrance Routemaster) used approximately 60% of standard Routemaster body parts. It had independent coil suspension at the front with air suspension at the rear. It was powered by an AEC AV691 11.3 litre engine developing 150bhp @ 1800rpm. A shame it was never allowed to enter production, as no doubt Northern General would have taken delivery of some. They were certainly impressed with the high standards set by the originals, which did not suffer the effects of corrosion encountered with their Atlanteans of a similar age.

Brendan Smith

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With reference to London Transport’s tie-up with BEA, as an airline BEA didn’t want the overhead of operating passenger road vehicles and space to house them. So, while the vehicles were owned by BEA, they were operated by London Transport using LT drivers and were accommodated at the former Chiswick Tram Depot (later to become Stamford Brook bus garage). The service started initially with half-decker Commer Commandos; and continued into the early 1950s with a dedicated fleet of RFs (AEC Regal IVs with special Park Royal deck-and-a-half bodies).
Replacements were needed in the 1960s – larger aircraft now required larger vehicles. LT had conducted trials with double-deckers, one an AEC Regent V with a large rear luggage compartment and the other, RMF 1254, with a trailer.
The RMF trials having been successful, BEA ordered a fleet of 65, together with 88 luggage trailers (by Marshall). These RMAs differed from RMF1254 in various ways:
•They were of the standard Routemaster length, 27ft 8in.
•They had the standard engine but were geared for 70mph motorway operation.
•They were equipped with paraffin heaters to keep the interior warm during the sometimes lengthy waits at terminals.
•The destination displays were eliminated (as passengers knew where they were going)
•An illuminated panel above the front entrance advertised the airline, as did a matching panel on the offside.
•The drivers front window was of the single pane non-opening variety.
They went into service between the West London Air Terminal at Cromwell Road and Heathrow Airport from October 1966 after a brief trial period.

(Information adapted from Ian’s Bus Stop website.)

Trevor Haynes

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25/09/11 – 18:02

When London Transport and Green line started to run down the Routemaster fleet they became scattered far and wide, but if I’m not mistaken Northern General were the only other operator who had Routemasters of any type from new. They were bought for the routes between Newcastle and Darlington/Hartlepool/Stockton and Middlesbrough. The Sunderland/Bishop Auckland route run by Sunderland & District (Northern General) used Burlingham bodied PD3′s fitted with rear doors

Ronnie Hoye

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