LNER Class D40

Infobox Locomotive
name=LNER D40 class
ex-GNoS V and F classes
powertype=steam


caption=
builder=Class V: Neilson, Reid & Co. (5)
GNoS Inverurie Works (8)
Class F: North British Locomotive Co. (6),
GNoS Inverurie Works (2)
builddate=Class V: 1899–1915
Class F: 1920–1921
whytetype=4-4-0
uicclass=2'Bn (13) and 2'Bh (8)
gauge=RailGauge|ussg
totalproduction=Class V: 13
Class F: 8
leadingsize=convert|3|ft|9.5|in|m|3|abbr=on
driversize=convert|6|ft|1|in|m|3|abbr=on
cylindercount=Two, inside
cylindersize=18 × 26 in (452×660 mm)
valvegear=Stephenson, slide valves
boilerpressure=convert|165|psi|MPa|2|abbr=on|lk=on
tractiveeffort=convert|16185|lbf|kN|2|abbr=on|lk=on
weight=Class V: convert|46.35|LT|t|1|lk=on
Class F: convert|48.65|LT|t|1
Tender: convert|37.40|LT|t|1
railroad=Great North of Scotland Railway
London and North Eastern Railway
British Railways
railroadclass=GNoS: V and F
LNER: D40
BR:
superheatertype=Class V: none
Class F: yes
retiredate=1947–1958
preservedunits=No. 49
disposition=One preserved, remainder scrappedThe London and North Eastern Railway (LNER) D40 class is a type of 4-4-0 steam locomotive inherited from the Great North of Scotland Railway. It consisted of GNoSR class V (introduced in 1899 by William Pickersgill and GNoSR class F (introduced in 1920 by T. E. Heywood). The two classes were similar but the class F was superheated.

Construction history

Class V

The class V comprised five locomotives built by Neilson, Reid and Company in 1899, and eight locomotives (in two batches of four) built by the Great North of Scotland Railway at their Inverurie Works, Aberdeenshire, in 1906 and 1915. The 13 locomotives were numbered 25–29, 31, 33–36, and 113–115.

Class F

The class F locomotives were the only ones to be named by the GNSR, all other classes being numbered only. The class originally comprised eight locomotives, six built by the North British Locomotive Company in Glasgow in 1920, the remaining two by GNoSR at Inverurie Works in 1921.

London and North Eastern Railway

All 21 locomotives passed to the London and North Eastern Railway in 1923. The LNER classed them all as D40 irrespective of whether they were fitted with superheaters (class F) or not (class V). The LNER initially renumbered them by adding 6800 to their GNoSR number. In 1946 they completely renumbered all their locomotives and the D40 class became 2260–2261, 2265–2272, 2262–2264 (former class V) and 2273–2280 (former class F).

The fist locomotive was withdrawn in 1947.

British Railways

Eighteen of the 21 locomotives passed into British Railways ownership in 1948 (eleven former class V, and seven former class F). BR renumbered them by adding 60000 to their 1946 LNER number.

The last locomotive was withdrawn in 1958.

Preservation

One example of the superheated version is preserved, GNoSR No. 49, "Gordon Highlander" (LNER No. 6849 at the Grouping, LNER No. 2277 in 1946 and BR No. 62277 on nationalisation). At withdrawal, it was the only survivor of the class still in service. Restored to GNSR green, though it probably originally appeared in black, it was given an occasional airing on specials before retirement to the Glasgow Transport Museum.

References

* Ian Allan ABC of British Railways Locomotives, 1948 edition, part 4, page 19
* Williams, Peter (1974), "Britain's Railway Museums", Ian Allan Ltd, page 82
* Casserley, H. C. and Johnson, S. W. (1966, 1974), "Locomotives at the Grouping 2: London and North Eastern Railway", Ian Allen Ltd, p.31 ISBN 07110 0553 2

External links

* [http://www.lner.info/locos/D/d40.shtml LNER database Class D40]