Tucker

[tazzieman]

If I go back far enough I could claim ancestry with this mfr.

Really , this was ahead of its time. 

 

 

 

The company first tried the Lycoming aircraft engine but it would not fit in the car's rear engine compartment. A Franklin air-cooled flat-6 engine, the O-335 made by Air Cooled Motors (and originally intended for the Bell 47),

 

Some components and features of the car were innovative and ahead of their time. The most recognizable feature of the Tucker '48, a directional third headlight (known as the "Cyclops Eye"), would activate at steering angles of greater than 10 degrees to light the car's path around corners. At the time, 17 states had laws against cars having more than two headlights.^[12] Tucker fabricated a cover for the cyclops center light for use in these states.

A Tucker '48 Sedan design patent illustration^[13]

The car was rear-engined and rear wheel drive. A perimeter frame surrounded the vehicle for crash protection, as well as a roll bar integrated into the roof. The steering box was behind the front axle to protect the driver in a front-end accident. The instrument panel and all controls were within easy reach of the steering wheel, and the dash was padded for safety.^[14] The windshield was made of shatterproof glass and designed to pop out in a collision to protect occupants. The car's parking brake had a separate key so it could be locked in place to prevent theft. The doors extended into the roof, to ease entry and exit.^[12] Each Tucker built differed somewhat from the previous car, as each car built was basically a “prototype” where design features and engineering concepts were tried, improved, or discarded throughout the production cycle. The door releases on the interior of the Tucker came from the Lincoln Zephyr. The steering columns used in the Tucker were donated by Ford and are from the 1941 Lincoln. Preston Tucker held a patent for a collapsible steering column design. A glove box was added to the front door panels instead of the more conventional location in the dash to provide space for the “crash chamber” that the Tucker is now famous for. This is a padded area ahead of the passenger seat, free from obstructions, providing the front seat passengers an area to protect themselves in the event of an accident.^[2] The engine and transmission were mounted on a separate subframe which was secured with only six bolts. The entire drivetrain could thus be lowered and removed from the car in minutes. Tucker envisioned loaner engines being quickly swapped in for service in just 30 minutes.^[15]

Tucker envisioned several other innovations which were later abandoned. Magnesium wheels, disc brakes, fuel injection, self-sealing tubeless tires, and a direct-drive torque converter transmission were all evaluated and/or tested but were dropped on the final prototype due to cost, engineering complexity, and lack of time to develop.^[16]

 

Tucker initially tried to develop an innovative engine. It was a 589 cubic inches (9.65 L) flat-6 cylinder with hemispherical combustion chambers, fuel injection, and overhead valves operated by oil pressure rather than a camshaft. An oil pressure distributor was mounted inline with the ignition distributor and delivered appropriately timed direct oil pressure to open each valve at the proper interval. This unique engine was designed to idle at 100 rpm and cruise at 250-1200 rpm through the use of direct drive torque converters on each driving wheel instead of a transmission. These features would have been auto industry firsts in 1948, but as engine development proceeded, problems appeared. The 589 engine was installed only in the test chassis and the first prototype.^[12]