BMW F 76 explained

BMW F 76 / BMW F 79
Manufacturer:BMW – Bayerischen Motoren-Werke A.G. Munich, Germany
Production:BMW Werk Eisenach, Germany
Model Years:1932-1934
Body Style:open three-wheel cart
Layout:Kardan MR layout
Engine:198 cc 4.4 kW two-stroke engine or 396 cc 8.8 kW
Transmission:3-speed manual
Wheelbase:NaNinches
Length:NaNinches
Width:NaNinches
Height:NaNinches
Weight:NaN-
Predecessor:none
Successor:none
Sp:uk

The BMW F 76 was a small tricycle delivery van made by BMW. It was built from 1932 to 1933 in BMW's Eisenach plant. In 1933, the BMW F 79 version with a larger engine was put into production.

History

Development

The BMW 3/15's van version did not sell very well; only 435 vehicles were sold from May 1929 to February 1932.[1] The success of other manufacturers' three-wheeled commercial vehicles during the Great Depression made BMW Munich develop its own tricycle lorry in 1931. It had a two person bench seat and a single-cylinder motorcycle engine.

A one-seat variant had been tested as well as a passenger car, but both were not put into production.

Marketing

In autumn 1932, the F 76s production commenced in the BMW Eisenach factory. It had a 200 cc engine, and therefore, could be driven legally without a driving licence. It was priced at RM 1350.

In January 1933, the F 79 version with a 400 cc engine was introduced; it cost RM 1500.

A horn and a speedometer were standard. Windshield, wiper, cab, doors, electric turn indicators, spare wheel, and car jack were available as factory options and cost extra. Various modified versions of the freight compartment were also offered from the factory.

After a total production of just 600 units (250 F 76 and 350 F 79), the manufacture was in 1934 ceased due to low demand.

Technology

Drive construction

The engines used were single-cylinder four-stroke OHV engines that were derived from the motorcycle engines of the BMW R 2 and BMW R 4.

There were at least two variants for engine cooling: a simple solution with a V-belt-driven, four-bladed fan in front of the cylinder, which was only seen on the test vehicles, and a more elaborate design with impeller on the front crankshaft stub and air baffles for cooling air, which was also described in the manuals and spare parts lists.[2]

The engine was mated with a three-speed gearbox with reverse gear and a propeller shaft to the rear wheel.

Chassis

The tricycle had only one single driven rear wheel and two steerable front wheels.

The rigid front axle was suspended by two longitudinally mounted leaf springs.[3]

The rear wheel had a single control arm and a leaf spring, aligned longitudinally to the prop shaft.

BMW used this groundbreaking design principle again for their 1980's BMW R 80 G/S motorcycles.[4]

The vehicle has drum brakes.

Construction

The engine was mounted underneath the driver's seat.

The permissible total weight was 650 kg (1433 lbs).

Tech specs

ParameterF 76F 79
Enginesingle cylinder four-stroke engine
cylinder bore63 mm84 mm
Stroke64 mm78 mm
engine displacement198 cc398 cc
power6 hp (4,4 kW) at 3500 rpm12 hp (8,8 kW) at 3500 rpm
top speed40 km/h (25 mph)60 km/h (37 mph)
payload345 kg (761 lbs)340 kg (750 lbs)
max. permissible mass650 kg (1433 lbs)
fuel capacity8 L (2.1 gal)

Competitors

Further reading

External links

Notes and References

  1. Web site: BMW 3/15 PS DA 2 Eil-Lieferwagen. BMW Geschichte. BMW AG. 2016-01-06. Verkaufspreis: RM 2.400, Einheiten: 435. Dossier des BMW Group Archivs
  2. Web site: Technische Zeichnung BMW F 76/79 Dreirad-Lieferwagen Motor. BMW Geschichte. BMW AG. 2016-06-02. 1932. Zeichnung im BMW Group Archiv
  3. Web site: BMW F 76/79 Dreirad-Lieferwagen, Fahrgestell. BMW Geschichte. BMW AG. 2016-06-02. 1932. Foto im BMW Group Archiv
  4. Web site: BMW Monolever. BMW Geschichte. BMW AG. 2016-01-06. 1983. Zeichnung im BMW Group Archiv