DRG_Class_04 Knowpia

Specifications
Specifications
Configuration:;
• Whyte	4-6-2
• UIC	2′C1′ h4v
• German	S 36.18
Driver	Divided: inside HP on 1st, outside LP on 2nd
Gauge	1,435 mm (4 ft 8+1⁄2 in)
Leading dia.	1,000 mm (39.37 in)
Driver dia.	2,000 mm (78.74 in)
Trailing dia.	1,250 mm (49.21 in)
Wheelbase:
• Axle spacing; (Asymmetrical)	2,200 mm (7 ft 2+5⁄8 in) +; 1,800 mm (5 ft 10+7⁄8 in) +; 2,250 mm (7 ft 4+5⁄8 in) +; 2,250 mm (7 ft 4+5⁄8 in) +; 3,500 mm (11 ft 5+3⁄4 in);
• Engine	12,000 mm (39 ft 4+1⁄2 in) +
• Tender	5,700 mm (18 ft 8+3⁄8 in) +
• Tender bogie	1,900 mm (6 ft 2+3⁄4 in)
• incl. tender	20,225 mm (66 ft 4+1⁄4 in)
Length:;
• Over headstocks	22,605 mm (74 ft 2 in) +
• Over buffers	23,905 mm (78 ft 5+1⁄8 in)
Height	4,550 mm (14 ft 11+1⁄8 in) +
Axle load	18.78–18.79 tonnes (18.48–18.49 long tons; 20.70–20.71 short tons)
Adhesive weight	54.9–57.6 tonnes (54.0–56.7 long tons; 60.5–63.5 short tons)
Empty weight	97.0–118.5 tonnes (95.5–116.6 long tons; 106.9–130.6 short tons)
Service weight	106.3–129.9 tonnes (104.6–127.8 long tons; 117.2–143.2 short tons)
Tender type	2′2′ T 32
Fuel type	Coal
Fuel capacity	10 tonnes (9.8 long tons; 11 short tons)
Water cap.	32 m3 (7,000 imp gal; 8,500 US gal)
Firebox:
• Grate area	4.10 m2 (44.1 sq ft)
Boiler:;
• Pitch	3,100 mm (10 ft 2 in) +
• Tube plates	04 001: 5,800 mm (19 ft 3⁄8 in); 04 002: 6,800 mm (22 ft 3+3⁄4 in);
• Small tubes	04 001: 54 mm (2+1⁄8 in), 84 off; 04 002: 70 mm (2+3⁄4 in), 75 off;
• Large tubes	04 001: 143 mm (5+5⁄8 in), 38 off; 04 002: 171 mm (6+3⁄4 in), 24 off;
Boiler pressure	25 bar (25.5 kgf/cm2; 363 psi)
Heating surface:
• Firebox	20 m2 (220 sq ft)
• Tubes	04 001: 75.1 m2 (808 sq ft); 04 002: 104.3 m2 (1,123 sq ft);
• Flues	04 001: 93.5 m2 (1,006 sq ft); 04 002: 82.5 m2 (888 sq ft);
• Total surface	04 001: 188.6 m2 (2,030 sq ft); 04 002: 206.8 m2 (2,226 sq ft);
Superheater:;
• Heating area	04 001: 88.0 m2 (947 sq ft); 04 002: 84.6 m2 (911 sq ft);
Cylinders	Four, compound: HP inside, LP outside
High-pressure cylinder	350 mm × 660 mm (13+3⁄4 in × 26 in)
Low-pressure cylinder	520 mm × 660 mm (20+1⁄2 in × 26 in)
Valve gear	Heusinger (Walschaerts)

Type and origin
Type and origin
Power type	Steam
Builder	Krupp
Serial number	1194–1195
Build date	1932
Total produced	2

DRG Class 04
*later* DRG Class 02.1
DRG Class 04; later DRG Class 02.1
	04 001 in 1932
Power type
Type and origin
Power type	Steam
Builder	Krupp
Serial number	1194–1195
Build date	1932
Total produced	2
Configuration:;
Specifications
Configuration:;
• Whyte	4-6-2
• UIC	2′C1′ h4v
• German	S 36.18
Driver	Divided: inside HP on 1st, outside LP on 2nd
Gauge	1,435 mm (4 ft 8+1⁄2 in)
Leading dia.	1,000 mm (39.37 in)
Driver dia.	2,000 mm (78.74 in)
Trailing dia.	1,250 mm (49.21 in)
Wheelbase:
• Axle spacing; (Asymmetrical)	2,200 mm (7 ft 2+5⁄8 in) +; 1,800 mm (5 ft 10+7⁄8 in) +; 2,250 mm (7 ft 4+5⁄8 in) +; 2,250 mm (7 ft 4+5⁄8 in) +; 3,500 mm (11 ft 5+3⁄4 in);
• Engine	12,000 mm (39 ft 4+1⁄2 in) +
• Tender	5,700 mm (18 ft 8+3⁄8 in) +
• Tender bogie	1,900 mm (6 ft 2+3⁄4 in)
• incl. tender	20,225 mm (66 ft 4+1⁄4 in)
Length:;
• Over headstocks	22,605 mm (74 ft 2 in) +
• Over buffers	23,905 mm (78 ft 5+1⁄8 in)
Height	4,550 mm (14 ft 11+1⁄8 in) +
Axle load	18.78–18.79 tonnes (18.48–18.49 long tons; 20.70–20.71 short tons)
Adhesive weight	54.9–57.6 tonnes (54.0–56.7 long tons; 60.5–63.5 short tons)
Empty weight	97.0–118.5 tonnes (95.5–116.6 long tons; 106.9–130.6 short tons)
Service weight	106.3–129.9 tonnes (104.6–127.8 long tons; 117.2–143.2 short tons)
Tender type	2′2′ T 32
Fuel type	Coal
Fuel capacity	10 tonnes (9.8 long tons; 11 short tons)
Water cap.	32 m3 (7,000 imp gal; 8,500 US gal)
Firebox:
• Grate area	4.10 m2 (44.1 sq ft)
Boiler:;
• Pitch	3,100 mm (10 ft 2 in) +
• Tube plates	04 001: 5,800 mm (19 ft 3⁄8 in); 04 002: 6,800 mm (22 ft 3+3⁄4 in);
• Small tubes	04 001: 54 mm (2+1⁄8 in), 84 off; 04 002: 70 mm (2+3⁄4 in), 75 off;
• Large tubes	04 001: 143 mm (5+5⁄8 in), 38 off; 04 002: 171 mm (6+3⁄4 in), 24 off;
Boiler pressure	25 bar (25.5 kgf/cm2; 363 psi)
Heating surface:
• Firebox	20 m2 (220 sq ft)
• Tubes	04 001: 75.1 m2 (808 sq ft); 04 002: 104.3 m2 (1,123 sq ft);
• Flues	04 001: 93.5 m2 (1,006 sq ft); 04 002: 82.5 m2 (888 sq ft);
• Total surface	04 001: 188.6 m2 (2,030 sq ft); 04 002: 206.8 m2 (2,226 sq ft);
Superheater:;
• Heating area	04 001: 88.0 m2 (947 sq ft); 04 002: 84.6 m2 (911 sq ft);
Cylinders	Four, compound: HP inside, LP outside
High-pressure cylinder	350 mm × 660 mm (13+3⁄4 in × 26 in)
Low-pressure cylinder	520 mm × 660 mm (20+1⁄2 in × 26 in)
Valve gear	Heusinger (Walschaerts)
Maximum speed
Performance figures
Maximum speed	130 km/h (81 mph)
Indicated power	2,100–2,320 PS (1,540–1,710 kW; 2,070–2,290 hp) (depending on build state)
Operators
Career
Operators	Deutsche Reichsbahn
Numbers	DRG 04 001 and 04 002; from 1935: 02 101 and 02 102
Retired	1939
Disposition	Both scrapped

The two German Class 04 steam locomotives were experimental engines with the Deutsche Reichsbahn, that were derived from the Class 03 standard locomotives (Einheitsloks).

History edit

In 1932, the Deutsche Reichsbahn tried to raise boiler overpressures from 156.9 to 245.1 N/cm² (227.6 to 355.5 psi) by using high-tensile steel. These engines, built by the firm of Krupp, were initially tested at the Grunewald Locomotive Testing Office. With a specific steam consumption value of 5.2 kg/PSh with respect to their indicated output, the locomotives clearly undercut the very low steam consumption value of the Class 03 by over 1 kg/PSh. The coal consumption based on the effective power at the coupling hook, was 0.96 kg/PSh compared with 1.13 kg/PSh on the 03.^[1]

The medium-pressure boilers did not prove to be stable, and after a short time damage occurred to the firebox. Since the locomotives did not meet expectations even after modifications and repairs, the permissible boiler overpressure was finally reduced to 20 atmospheres in 1935 and they were added to the operating portfolio with the company numbers 02 101 and 02 102. They were then intended to be used in regular train service from the Hamburg-Altona depot, but since they had no experience with four-cylinder compound locomotives there, they were handed over to the Hof depot in 1936. Due to a lack of water, the boiler of 02 101 exploded on 3 April 1939,^[2] whereupon both engines were decommissioned and were scrapped in 1940.

The engines were equipped with a 2′2′ T 32 standard tender.

References edit

^ Autorenkollektiv Johannes Schwarze, Werner Deinert, Lothar Frase, Heinz Lange, Oskar Schmidt, Georg Thumstädter, Max Wilke: Die Dampflokomotive. Entwicklung, Aufbau, Wirkungsweise, Bedienung und Instandhaltung sowie Lokomotivschäden und ihre Beseitigung. Reprint of the 2nd edn. of 1965 by Transpress Verlag, Stuttgart 1998, ISBN 3-344-70791-4, Table in Annex 1.1
^ "Albert Gieseler -- Dampflokomotive 04 001".

Weisbrod, Manfred; Müller, Hans; Petznik, Wolfgang (1976). Dampflokomotiven deutscher Eisenbahnen, Baureihe 01–39 (EFA 1.1) (in German) (3rd ed.). Düsseldorf: Alba Buchverlag. pp. 53–55. ISBN 3-87094-081-6.

[1] Autorenkollektiv Johannes Schwarze, Werner Deinert, Lothar Frase, Heinz Lange, Oskar Schmidt, Georg Thumstädter, Max Wilke: Die Dampflokomotive. Entwicklung, Aufbau, Wirkungsweise, Bedienung und Instandhaltung sowie Lokomotivschäden und ihre Beseitigung. Reprint of the 2nd edn. of 1965 by Transpress Verlag, Stuttgart 1998, ISBN 3-344-70791-4, Table in Annex 1.1

[2] "Albert Gieseler -- Dampflokomotive 04 001".

[1]

[2]

Summary

History edit

See also edit

References edit