Rock Island / Burlington, Cedar Rapids & N 4-4-0 "American" Type Locomotives

Class B-10-47-A (Locobase 7179)

Data from RI 11 - 1904 Locomotive Class & Diagrams supplied in May 2005 by Allen Stanley from his extensive collection.

Class B-11-21-A/21-E (Locobase 7180)

Data from RI 11 - 1904 Locomotive Class & Diagrams supplied in May 2005 by Allen Stanley from his extensive collection.

Baldwin delivered 256 in 1873 with 147 fire tubes and 263-264 in 1877 with 146 tubes.

Class B-11-21-B/21-D (Locobase 7181)

Data from RI 11 - 1904 Locomotive Class & Diagrams supplied in May 2005 by Allen Stanley from his extensive collection.

Hinkley delivered 257 in 1871 and 259 in 1872 and Baldwin followed with 260 in 1873 and 261-262 in 1876.

Class B-11-21-C (Locobase 7178)

Data from RI 11 - 1904 Locomotive Class & Diagrams supplied in May 2005 by Allen Stanley from his extensive collection.

Class B-12/B-13 46-A/46-B (Locobase 7182)

Data from RI 11 - 1904 Locomotive Class & Diagrams supplied in May 2005 by Allen Stanley from his extensive collection.

Given that the numbering in the diagram book was post-hoc, the actual order of this home-built class not discernible from that series. They ran: 318-322, 324-327, 330-332, 334-339, 341-358, 360-361.

Class B-13-4-C (Locobase 7183)

Data from RI 11 - 1904 Locomotive Class & Diagrams supplied in May 2005 by Allen Stanley from his extensive collection.

Class B-13-4-D/B-13-51-A (Locobase 7184)

Data from RI 11 - 1904 Locomotive Class & Diagrams supplied in May 2005 by Allen Stanley from his extensive collection.

Locobase isn't sure why the two pairs were given two different Motive Power classes -- possibly they came from different railroads. But they were identical and fit right in with the the run of Eight-wheelers then being purchased by the Rock Island.

Class B-14-51-A (Locobase 7225)

Data from RI to 1951 Combined Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive collection.

A class of Baldwin freight Eight-wheelers that had smaller boilers than the B-14s that were delivered in 1877. The diagram shows that building dates included 1872, 1880-1882.

Class B-14-51-C/4-E/4-F (Locobase 7186)

Data from RI 11 - 1904 Locomotive Class & Diagrams supplied in May 2005 by Allen Stanley from his extensive collection.

Several Baldwin freight Eight-wheelers with relatively high boiler pressure that were delivered in ones and twos (and sometimes threes) from 1877 to 1881. 376-380 were the 4-Es, 381-382 & 390-391 were the 4-Fs, and the 405-407 were the 51-Cs.

Class B-14-6-A/B-14-23-A (Locobase 7185)

Data from RI 11 - 1904 Locomotive Class & Diagrams supplied in May 2005 by Allen Stanley from his extensive collection.

A relatively large class of Americans, once again renumbered later and once again possessing two different motive power class identifications based on manufacturer. Rock Island built all but 467-471, which were delivered by Brooks as 6-Bs in 1888. The Rock had supplied 14 23-As in 1886 and 8 23-A (471-475) in 1887

Class B-15/12-C (Locobase 7187)

Data from RI 11 - 1904 Locomotive Class & Diagrams supplied in May 2005 by Allen Stanley from his extensive collection.

Locobase is intrigued by the great precision shown in many of the Rock Island's boiler-pressure figures. This set of Brooks engines were slightly larger than earlier Eight-wheelers, but the big jump in grate area had yet to happen.

Class B-16/26-A (Locobase 7188)

Data from RI 11 - 1904 Locomotive Class & Diagrams supplied in May 2005 by Allen Stanley from his extensive collection.

A numerous class of Eight-wheelers that summarizes Rock Island practice up to that point. The boiler and grate have grown little, but the stride of the two driven axles has lengthened and the engine now put more than 53 tons on the rails. 619-631

Class B-17/26-B (Locobase 7189)

Data from RI 11 - 1904 Locomotive Class & Diagrams supplied in May 2005 by Allen Stanley from his extensive collection.

The only difference between these and the 38 built as 26-A (Locobase 7188) was the latter's 68" drivers. Those were more purely passenger locomotives while these served mixed-traffic trains.

Class B-19-22-A (Locobase 3141)

Data from RI 11 - 1903 Locomotive Class & Diagrams supplied in May 2005 by Allen Stanley from his extensive collection.

This class, produced by the railroad, seems to have been the first express passenger design on the Rock Island. The boiler and grate have both grown considerably and the tall drivers invite higher speeds.

The AS ratio suggests that these were drafty engines indeed, although the generous boiler proportions may have been intended to allow free-steaming even at high speed. Designed by the CRI&P's Superintendent of Motive Power and Equipment George F. Wilson, they had 8" diameter dry pipes, and large steam and exhaust ports. Each Richardson balanced valve weighed 161 lb.

Class B-9-8-A (Locobase 7177)

Data from RI 11 - 1904 Locomotive Class & Diagrams supplied in May 2005 by Allen Stanley from his extensive collection.

203 had 15" x 24" cylinders and a calculated tractive effort of 9,471 lb.

Class E-13-64-A (Locobase 7226)

Data from RI 11 - 1904 Locomotive Class & Diagrams supplied in May 2005 by Allen Stanley from his extensive collection.

Locobase doesn't think the construction date for this pair of Eight-wheelers is close to correct and opts for a date before 1880. 1899 might have been the year the railroad acquired the two little Americans in a merger.

Class E-18-67 (Locobase 7227)

Data from RI 11 - 1904 Locomotive Class & Diagrams supplied in May 2005 by Allen Stanley from his extensive collection.

For 1902, this was an outdated design in many respects. The grate was particularly small and was dropped between the driving axles in a style that was then 20 years old. On the other hand, the stroke length was "modern" as was the boiler pressure for a light-traffic Eight-wheeler.

Specifications
ClassB-10-47-AB-11-21-A/21-EB-11-21-B/21-DB-11-21-CB-12/B-13 46-A/46-BB-13-4-CB-13-4-D/B-13-51-AB-14-51-AB-14-51-C/4-E/4-FB-14-6-A/B-14-23-AB-15/12-CB-16/26-AB-17/26-BB-19-22-AB-9-8-AE-13-64-AE-18-67
Locobase ID71797180718171787182718371847225718671857187718871893141717772267227
RailroadBurlington, Cedar Rapids & N (CRI & P)Burlington, Cedar Rapids & N (CRI & P)Burlington, Cedar Rapids & N (CRI & P)Burlington, Cedar Rapids & N (CRI & P)Rock Island (CRI & P)Burlington, Cedar Rapids & N (CRI & P)Burlington, Cedar Rapids & N (CRI & P)Burlington, Cedar Rapids & N (CRI & P)Burlington, Cedar Rapids & N (CRI & P)Rock Island (CRI & P)Rock Island (CRI & P)Rock Island (CRI & P)Rock Island (CRI & P)Burlington, Cedar Rapids & N (CRI & P)Burlington, Cedar Rapids & N (CRI & P)Rock Island (CRI & P)Rock Island (CRI & P)
Whyte4-4-04-4-04-4-04-4-04-4-04-4-04-4-04-4-04-4-04-4-04-4-04-4-04-4-04-4-04-4-04-4-04-4-0
Road Numbers203, 205256, 263-264257, 259-262205-206318+368-373374-375, 403-404384-85, 388-89, 392, 394+376-381, 391-92, 403-405467-476, 525-540, 571593-596601-618, 632-652619-6311101-1113 / 661-673201-202411-412675, 677, 682, 684
GaugeStdStdStdStdStdStdStdStdStdStdStdStdStdStdStdStdStd
BuilderHinkleyBurnham, Parry, Williams & CoseveralHinkleyRock IslandRock IslandBurnham, Parry, Williams & CoBurnham, Parry, Williams & CoBurnham, Parry, Williams & CoseveralBrooksRock IslandRock IslandRock IslandHinkleyRock IslandBurnham, Williams & Co
Year18701877187118711879188218801872187718861887189018911898187018991902
Valve GearStephensonStephensonStephensonStephensonStephensonStephensonStephensonStephensonStephensonStephensonStephensonStephensonStephensonStephensonStephensonStephensonStephenson
Locomotive Length and Weight
Driver Wheelbase8'8' 8.25'8' 8.25' 8.25' 8.25' 8.25' 8.25' 8.25' 8.50'9'9' 8.50'8' 8.33' 9.17'
Engine Wheelbase21.75'21.71'22.31'21.25'22.33'22.21'22.19'22.22'22.22'22.33'23.08'23.62'23.62'30.81'21.75'22.33'24.58'
Ratio of driving wheelbase to overall engine wheebase 0.37 0.37 0.37 0.38 0.37 0.37 0.37 0.37 0.37 0.37 0.37 0.38 0.38 0.28 0.37 0.37 0.37
Overall Wheelbase (engine & tender)42.58'41.73'43.60'40.71'43.75'42.71'42.97'42.47'42.95'44'45.73'45.25'45.25'48.46'42.58'49.62'
Axle Loading (Maximum Weight per Axle)
Weight on Drivers45300 lbs44700 lbs50000 lbs50000 lbs47000 lbs51120 lbs52800 lbs48000 lbs54200 lbs54400 lbs60000 lbs69800 lbs69000 lbs83000 lbs43180 lbs60000 lbs78000 lbs
Engine Weight73420 lbs71200 lbs79250 lbs79250 lbs77000 lbs79520 lbs83800 lbs77700 lbs87100 lbs88700 lbs93700 lbs107300 lbs106800 lbs125000 lbs70230 lbs93000 lbs127000 lbs
Tender Light Weight62900 lbs62900 lbs60533 lbs57200 lbs50000 lbs62000 lbs67383 lbs58000 lbs67380 lbs60000 lbs63650 lbs71000 lbs70000 lbs78000 lbs60196 lbs70000 lbs75000 lbs
Total Engine and Tender Weight136320 lbs134100 lbs139783 lbs136450 lbs127000 lbs141520 lbs151183 lbs135700 lbs154480 lbs148700 lbs157350 lbs178300 lbs176800 lbs203000 lbs130426 lbs163000 lbs202000 lbs
Tender Water Capacity2800 gals2880 gals2500 gals2100 gals2380 gals2900 gals3100 gals2580 gals3100 gals2500 gals4000 gals3200 gals3000 gals4000 gals2200 gals3500 gals4000 gals
Tender Fuel Capacity (oil/coal)6 tons6 tons8 tons8 tons8 tons6 tons8 tons6.5 tons8 tons5 tons8.5 tons5 tons5 tons8 tons6 tons8 tons10 tons
Minimum weight per yard of rail on which locomotive could run38 lb rail37 lb rail42 lb rail42 lb rail39 lb rail43 lb rail44 lb rail40 lb rail45 lb rail45 lb rail50 lb rail58 lb rail58 lb rail69 lb rail36 lb rail50 lb rail65 lb rail
Geometry Relating to Tractive Effort
Driver Diameter63"63"64"63"63"63"63"57"57"67"68"68"64"78"63"63"74"
Boiler Pressure130 psi130 psi130 psi130 psi140 psi135 psi160 psi130 psi160 psi145 psi152 psi160 psi160 psi190 psi130 psi140 psi190 psi
Cylinders (dia x stroke)15" x 24"16" x 24"16" x 24"16" x 24"17" x 24"17" x 24"17" x 24"17" x 24"17" x 24"18" x 24"18" x 24"18" x 24"18" x 24"19.5" x 26"15" x 22"17" x 24"18" x 26"
Tractive Effort9471 lbs10776 lbs10608 lbs10776 lbs13101 lbs12633 lbs14973 lbs13446 lbs16549 lbs14304 lbs14774 lbs15552 lbs16524 lbs20470 lbs8682 lbs13101 lbs18385 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.78 4.15 4.71 4.64 3.59 4.05 3.53 3.57 3.28 3.80 4.06 4.49 4.18 4.05 4.97 4.58 4.24
Heating Ability
Firebox Area115 sq. ft115 sq. ft121.50 sq. ft121.50 sq. ft100 sq. ft115 sq. ft121.50 sq. ft112 sq. ft115 sq. ft120 sq. ft137 sq. ft145 sq. ft145 sq. ft193.30 sq. ft115 sq. ft133.40 sq. ft163.30 sq. ft
Grate Area15.34 sq. ft15.34 sq. ft16.30 sq. ft16.30 sq. ft15.39 sq. ft15.34 sq. ft16.30 sq. ft16.30 sq. ft16.30 sq. ft15.26 sq. ft17 sq. ft17.60 sq. ft17.60 sq. ft24.50 sq. ft15.34 sq. ft16.50 sq. ft17.53 sq. ft
Evaporative Heating Surface9499541046955102610781242103913701228146514821482198894911741809
Superheating Surface
Combined Heating Surface9499541046955102610781242103913701228146514821482198894911741809
Evaporative Heating Surface/Cylinder Volume193.33170.81187.29170.99162.73170.98196.99164.79217.29173.73207.26209.66209.66221.21210.90186.20236.23
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation19941994211921192155207126082119260822132584281628164655199423103331
Same as above plus superheater percentage19941994211921192155207126082119260822132584281628164655199423103331
Same as above but substitute firebox area for grate area1495014950157951579514000155251944014560184001740020824232002320036727149501867631027
Power L142383737410538193558371649283132468941875240566253298120462342928034
Power MT412.50368.62362.00336.78333.79320.52411.53287.70381.46339.37385.07357.67340.53431.36472.07315.41454.15

Credits

Introduction and specifications provided by Steve Llanso of Sweat House Media.

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