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Horch 780 Sport Cabriolet (1932)
Horch 780 Sport Cabriolet (1932)
8th
Sales designation: 303, 304, 305, 306, 350, 375, 400, 405, 410, 420, 430, 440, 450, 470, 480, 500, 500A, 500B, 710, 720, 750, 750B, 780, 780B
Production period: 1926-1935
Class : Upper class
Body versions : Touring car , roadster , limousine , Pullman limousine , convertible , landaulet
Engines:
Petrol engines : 3.0-4.0 liters
(44-74 kW)
Length: 4400-5550 mm
Width: 1750-1820 mm
Height: 1650-1900 mm
Wheelbase : 3160-3750 mm
Empty weight : 1760-2250 kg
Previous model Listen 10
successor Horch 830/930 / 850/951
Horch 8 Type 303 (1927) in the museum mobile
Horch 8 Type 470 Cabriolet (1931)

The Horch 8 are passenger cars of the luxury class with eight-cylinder - line engines , which in the 1926-1935 Horch Werke AG (since June 1932 part of the Auto Union ) in Zwickau were manufactured. The Horch 12/60 PS (Type 303) model presented in 1926 was the first German series vehicle to have an eight-cylinder engine and the suction air (vacuum) -supported Bosch Dewandre servo brake .

Model history

Horch chief designer Paul Daimler , who also worked for the Zwickau plant as technical director of Argus Motoren Gesellschaft in Berlin (note: Argus owner Moritz Straus also held the majority of Horch shares from the early 1920s; from 1929 Horch was completely in his possession), initially created a 3.2-liter engine with two overhead camshafts ( DOHC ), which were driven by a vertical shaft. The cylinders combined in pairs enabled five large crankshaft bearings .

The Horch 303 with 60 hp was the first type in the series and the successor to the 2.6-liter four-cylinder Horch 10/50 hp (10 M 25). The rear wheels were driven via a four-speed gearbox with a shift lever in the middle of the car . A six-seat touring car , a Pullman sedan and a Pullman convertible were offered. In 1927, the Type 304 with a short chassis appeared as a convertible. In the same year, both models were the types 305 and 306 with 3.4 liter displacement replaced a larger engine with 65 hp.

In 1928 the vehicles received a 4-liter engine with 80 hp. Until 1930 the cars were called Type 350 and Type 375 ; until 1931 they were called Type 400 or Type 405 . Two models were exhibited at the Paris Motor Show in 1930: the Horch 400 with an 80 HP 4-liter DOHC engine and the seven-seat Pullman Horch 500 limousine with the new 5-liter OHC engine (100 HP, one camshaft).

After Paul Daimler left the company in 1929, the complex engine with two camshafts was replaced by a simplified design in view of the global economic crisis . Horch engine development was moved back to the Zwickau plant. The eight-cylinder newly designed there by Daimler's successor Fritz Fiedler only had one camshaft with a bevel drive; The crankshaft now had ten bearings to dampen vibrations . In 1931/32, the model 430 with 3 liter displacement and 65 hp was part of the range as a “economy model” . In addition, there were still vehicles with a displacement of 4 liters and 80 hp: the Type 410 and Type 440 ( called Type 710 from 1932 ). In addition, larger models with a displacement of 4.5 liters and 90 hp, the type 420 , type 450 and type 470 (from 1932 type 720 , type 750 and type 750 B ) were also produced. The top of the range were the versions with 5 liter cubic capacity and 100 hp. They were called Type 480 and Type 500/500 A (from 1932 Type 500 B , Type 780 and Type 780 B ).

Around 12,000 cars were built by 1935. The successors were the Horch 850/951 with eight-cylinder in-line engines and the Horch 830/930 with V8 engines, which were introduced in 1933 . The 25,000. Horch eight-cylinder was ceremoniously delivered on July 25, 1937 in Zwickau.

Technical data for types 303, 304, 305, 306 and 350

Type 303 (12/60 hp) 304 (12/60 hp) 305 (13/65 hp) 306 (13/65 hp) 350 (16/80 hp)
Construction period 1926-1927 1927 1927-1928 1927-1928 1928-1930
Superstructures T6, PL4, PC4 Cb2, R2 T6, PL4, PC4 L2, Cb2, R2 PL4, PC4, Cb2
engine 8 cyl. Row 4 bars 8 cyl. Row 4 bars 8 cyl. Row 4 bars 8 cyl. Row 4 bars 8 cyl. Row 4 bars
Valves overhead steering (dohc) with vertical shaft overhead steering (dohc) with vertical shaft overhead steering (dohc) with vertical shaft overhead steering (dohc) with vertical shaft overhead steering (dohc) with vertical shaft
Bore × stroke 65 mm × 118 mm 65 mm × 118 mm 67.5 mm × 118 mm 67.5 mm × 118 mm 73 mm × 118 mm
Displacement 3132 cc 3132 cc 3378 cc 3378 cc 3950 cc
Horsepower) 60 60 65 65 80
Power kW) 44 44 48 48 59
consumption 17 l / 100 km 17 l / 100 km 17 l / 100 km 17 l / 100 km 19 l / 100 km
Top speed 100 km / h 100 km / h 100 km / h 100 km / h 100 km / h
Empty weight 1890-1950 kg 1800 kg 1890-1950 kg 1800 kg 1920-2100 kg
Perm. total weight 2540-2600 kg 2450 kg 2540-2600 kg 2450 kg 2540-2750 kg
Electrics 12 volts 12 volts 12 volts 12 volts 12 volts
length 4700 mm 4400 mm 4700 mm 4400 mm 4720-5000 mm
width 1765 mm 1765 mm 1765 mm 1765 mm 1765 mm
height 1900 mm 1900 mm 1900 mm 1900 mm 1900 mm
wheelbase 3450 mm 3160 mm 3450 mm 3160 mm 3160-3450 mm
Front / rear track 1425 mm / 1414 mm 1425 mm / 1414 mm 1425 mm / 1414 mm 1425 mm / 1414 mm 1425 mm / 1414 mm
Turning circle 14.5 m 13.5 m 14.5 m 13.5 m 13.5-14.5 m

Technical data for types 375, 400, 405, 430 and 410

Type 375 (16/80 hp) 400 (16/80 hp) 405 (16/80 hp) 430 3 liters 410 4 liters
Construction period 1929-1930 1930-1931 1930-1931 1931-1932 1931-1933
Superstructures T6, PL4, PC4, Cb2 L4, Cb2 PL4 L4, Cb2 L4, Cb2, Cb4
engine 8 cyl. Row 4 bars 8 cyl. Row 4 bars 8 cyl. Row 4 bars 8 cyl. Row 4 bars 8 cyl. Row 4 bars
Valves overhead steering (dohc) with vertical shaft overhead steering (dohc) with vertical shaft overhead steering (dohc) with vertical shaft overhead steering (ohc) with vertical shaft overhead steering (ohc) with vertical shaft
Bore × stroke 73 mm × 118 mm 73 mm × 118 mm 73 mm × 118 mm 71-72.5 mm × 95 mm 82 mm × 95 mm
Displacement 3950 cc 3950 cc 3950 cc 3009-3137 cc 4014 cc
Horsepower) 80 80 80 65 80
Power kW) 59 59 59 48 59
consumption 19 l / 100 km 19 l / 100 km 19 l / 100 km 18 l / 100 km 19 l / 100 km
Top speed 100 km / h 100 km / h 100 km / h 100 km / h 105 km / h
Empty weight 2200 kg 1760-1850 kg 2000 kg 1850 kg 1850 kg
Perm. total weight 2800 kg 2380-2470 kg 2850 kg 2380 kg 2380 kg
Electrics 12 volts 12 volts 12 volts 12 volts 12 volts
length 5250 mm 4720 mm 5010 mm 4720 mm 4720 mm
width 1800 mm 1750 mm 1750 mm 1750 mm 1750 mm
height 1820 mm 1760 mm 1760 mm 1760 mm 1760 mm
wheelbase 3450 mm 3160 mm 3450 mm 3160 mm 3160 mm
Front / rear track 1462 mm / 1490 mm 1434 mm / 1477 mm 1434 mm / 1477 mm 1434 mm / 1477 mm 1434 mm / 1477 mm
Turning circle 14.5 m 13.5 m 14.5 m 13.5 m 13.5 m

Technical data for types 440, 710, 420, 450 and 470

Type 440 4 liters 710 4 liters 420 4.5 liters 450 4.5 liters 470 4.5 liters
Construction period 1931-1932 1932-1933 1931-1932 1931-1932 1931-1932
Superstructures PL4 Cb2, Cb4 L4, Cb2, Cb4 PL4, PC4, Cb4 Cb2
engine 8 cyl. Row 4 bars 8 cyl. Row 4 bars 8 cyl. Row 4 bars 8 cyl. Row 4 bars 8 cyl. Row 4 bars
Valves overhead steering (ohc) with vertical shaft overhead steering (ohc) with vertical shaft overhead steering (ohc) with vertical shaft overhead steering (ohc) with vertical shaft overhead steering (ohc) with vertical shaft
Bore × stroke 82 mm × 95 mm 82 mm × 95 mm 87 mm × 95 mm 87 mm × 95 mm 87 mm × 95 mm
Displacement 4014 cc 4014 cc 4517 cc 4517 cc 4517 cc
Horsepower) 80 80 90 90 90
Power kW) 59 59 66 66 66
consumption 19 l / 100 km 19 l / 100 km 20 l / 100 km 20 l / 100 km 20 l / 100 km
Top speed 100 km / h 110 km / h 115 km / h 115 km / h 115 km / h
Empty weight 1920 kg 2000 kg 1850 kg 1920 kg 2000 kg
Perm. total weight 2570 kg 2560 kg 2380 kg 2570 kg 2560 kg
Electrics 12 volts 12 volts 12 volts 12 volts 12 volts
length 5000 mm 5100 mm 4720 mm 5000 mm 5000 mm
width 1750 mm 1820 mm 1750 mm 1750 mm 1750 mm
height 1760 mm 1650 mm 1760 mm 1760 mm 1650 mm
wheelbase 3450 mm 3450 mm 3160 mm 3450 mm 3450 mm
Front / rear track 1434 mm / 1477 mm 1434 mm / 1477 mm 1434 mm / 1477 mm 1434 mm / 1477 mm 1434 mm / 1477 mm
Turning circle 14.5 m 14.5 m 13.5 m 14.5 m 14.5 m

Technical data for types 720/750 / 750B, 480, 500 / 500A, 780 / 780B and 500B

5 liter engine (100 hp) from 1932 in the Dresden Transport Museum .
Type 720/750 / 750B 4.5 liters 480 5 liters 500 / 500A 5 liters 780 / 780B 5 liters 500B 5 liters
Construction period 1932-1935 1931-1932 1930-1932 1932-1935 1932-1934
Superstructures T6, PL4, PC4, Cb2, Cb4 Cb4 PL4, PC4 Cb2, Cb4 T6, PL4, PC4
engine 8 cyl. Row 4 bars 8 cyl. Row 4 bars 8 cyl. Row 4 bars 8 cyl. Row 4 bars 8 cyl. Row 4 bars
Valves overhead steering (ohc) with vertical shaft overhead steering (ohc) with vertical shaft overhead steering (ohc) with vertical shaft overhead steering (ohc) with vertical shaft overhead steering (ohc) with vertical shaft
Bore × stroke 87 mm × 95 mm 87 mm × 104 mm 87 mm × 104 mm 87 mm × 104 mm 87 mm × 104 mm
Displacement 4517 cc 4944 cc 4944 cc 4944 cc 4944 cc
Horsepower) 90 100 100 100 100
Power kW) 66 74 74 74 74
consumption 20 l / 100 km 22 l / 100 km 23 l / 100 km 23 l / 100 km 24 l / 100 km
Top speed 120 km / h 120 km / h 120 km / h 125 km / h 120 km / h
Empty weight 2100 kg 1950 kg 2250 kg 2100 kg 2250 kg
Perm. total weight 2700 kg 2610 kg 3000 kg 2750 kg 2950 kg
Electrics 12 volts 12 volts 12 volts 12 volts 12 volts
length 5100 mm 5000 mm 5150 mm 5100 mm 5550 mm
width 1820 mm 1750 mm 1800 mm 1820 mm 1820 mm
height 1720 mm 1650 mm 1760 mm 1650 mm 1720 mm
wheelbase 3450 mm 3450 mm 3450 mm 3450 mm 3750 mm
Front / rear track 1434 mm / 1477 mm 1434 mm / 1477 mm 1434 mm / 1477 mm 1470 mm / 1500 mm 1470 mm / 1500 mm
Turning circle 14.5 m 14.5 m 14.5 m 14.5 m 16.5 m

Individual evidence

  1. ↑ Le Figaro October 2, 1930 page 3

literature

Web links

Commons : Horch 8  - Collection of images, videos and audio files