Glenister 1936
1948 Tucker Torpedo fuel engine
The 1948 Tucker Torpedo or Tucker '48 Sedan was an advanced automobile conceived by Preston Tucker and briefly produced in Chicago in 1948. Only 51 cars were made before the company folded on March 3, 1949, due to negative publicity initiated by the news media, a Securities and Exchange Commission investigation and a heavily publicized stock fraud trial. Speculation exists that the circumstances which brought the Tucker Corporation down were contributed to by the Big Three automakers and Michigan senator Homer Ferguson.
Studebaker was first to introduce an all-new postwar model, but Tucker took a different tack, designing a safety car with innovative features and modern styling. His specifications called for a water-cooled aluminum block[2] flat-6 rear engine, disc brakes, four-wheel independent suspension,[2] fuel injection, the location of all instruments on the steering wheel, and a padded dashboard.
The first sketch for Tucker's car, by designer George Lawson
Tucker's second design sketch by Alex Tremulis (Before front end was finalized with Lippincott designers.)
To finalize the design, Tucker hired the New York design firm J. Gordon Lippincott to create an alternate body. Only the front end and horizontal tail-light bar designs were refined for the final car. Tremulis gave the first prototype car the nickname of "Tin Goose".
Many components and features of the car were innovative and far ahead of its time. The most recognizable feature of the Tucker '48, a directional third headlight, known as the "Cyclops Eye", would turn on 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. Tucker fabricated a cover for the cyclops center light for use in these states.
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 in easy reach of the steering wheel, and the dash was padded for safety. The windshield was designed to pop-out in a collision to protect occupants. The car also featured seat belts, a first in its day. 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. The engine and transmission were mounted on a separate sub frame which could be lowered and removed in minutes with just six bolts removed—Tucker envisioned loaner engines being quickly swapped in for service in just 15–20 minutes.
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.
Tucker initially tried to develop an innovative engine. It was a 589 in³ 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 250-1200RPM 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.
The final car was only 70 in (1524 mm) tall, but was rather large and comfortable inside. Tremulis' design was called the most aerodynamic in the world, and though it still sported pre-war type fenders, it was startlingly modern. The mathematically-computed drag coefficient was only 0.27, although for the public this figure was rounded up to 0.30.
Continuing development – funding and publicity
Having raised $17,000,000 in a stock issue, one of the first speculative IPOs, Tucker needed more money to continue development of the car. He sold dealerships and distributorships throughout the country. Another money maker was the Tucker Accessories Program. In order to secure a spot on the Tucker waiting list, future buyers could purchase accessories, like seat covers, the radio, and luggage, before their car was built. This brought an additional $2,000,000 into the company.
With the final design in place, Preston Tucker took the pre-production cars on the road to show them in towns across the country. The cars were an instant success, with crowds gathering wherever they stopped. One report says that Tucker was pulled over by a police officer intent on getting a better look at the car.
To prove the road-worthiness of his cars, Tucker and his engineers ran several cars at the Indianapolis 500 in several endurance tests. During this testing, car #1027 was rolled at high speed while driven by mechanic Eddie Offut. The car's safety features were proven when Offut walked away from the severe crash. During the crash, the windshield popped out as designed, and afterward the car started up and was driven off the track.
One of Tucker's most innovative business ideas caused trouble for the company, however. His Accessories Program raised funds by selling accessories before the car was even in production. After the war demand for new cars was greater than dealers could supply, and most dealers had waiting lists for new cars. Preference was given to returning veterans, which meant that non-veterans were bumped down on the waiting lists indefinitely. Tucker's program allowed potential buyers who purchased Tucker accessories to obtain a guaranteed spot on the Tucker dealer waiting list for a Tucker '48 car.
This concept was investigated by the U.S. Securities and Exchange Commission and the United States Attorney, and led to an indictment of company executives. Although all charges were eventually dropped, the negative publicity destroyed the company and halted production of the car.
1948 Tucker Torpedo fuel engine
The 1948 Tucker Torpedo or Tucker '48 Sedan was an advanced automobile conceived by Preston Tucker and briefly produced in Chicago in 1948. Only 51 cars were made before the company folded on March 3, 1949, due to negative publicity initiated by the news media, a Securities and Exchange Commission investigation and a heavily publicized stock fraud trial. Speculation exists that the circumstances which brought the Tucker Corporation down were contributed to by the Big Three automakers and Michigan senator Homer Ferguson.
Studebaker was first to introduce an all-new postwar model, but Tucker took a different tack, designing a safety car with innovative features and modern styling. His specifications called for a water-cooled aluminum block[2] flat-6 rear engine, disc brakes, four-wheel independent suspension,[2] fuel injection, the location of all instruments on the steering wheel, and a padded dashboard.
The first sketch for Tucker's car, by designer George Lawson
Tucker's second design sketch by Alex Tremulis (Before front end was finalized with Lippincott designers.)
To finalize the design, Tucker hired the New York design firm J. Gordon Lippincott to create an alternate body. Only the front end and horizontal tail-light bar designs were refined for the final car. Tremulis gave the first prototype car the nickname of "Tin Goose".
Many components and features of the car were innovative and far ahead of its time. The most recognizable feature of the Tucker '48, a directional third headlight, known as the "Cyclops Eye", would turn on 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. Tucker fabricated a cover for the cyclops center light for use in these states.
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 in easy reach of the steering wheel, and the dash was padded for safety. The windshield was designed to pop-out in a collision to protect occupants. The car also featured seat belts, a first in its day. 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. The engine and transmission were mounted on a separate sub frame which could be lowered and removed in minutes with just six bolts removed—Tucker envisioned loaner engines being quickly swapped in for service in just 15–20 minutes.
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.
Tucker initially tried to develop an innovative engine. It was a 589 in³ 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 250-1200RPM 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.
The final car was only 70 in (1524 mm) tall, but was rather large and comfortable inside. Tremulis' design was called the most aerodynamic in the world, and though it still sported pre-war type fenders, it was startlingly modern. The mathematically-computed drag coefficient was only 0.27, although for the public this figure was rounded up to 0.30.
Continuing development – funding and publicity
Having raised $17,000,000 in a stock issue, one of the first speculative IPOs, Tucker needed more money to continue development of the car. He sold dealerships and distributorships throughout the country. Another money maker was the Tucker Accessories Program. In order to secure a spot on the Tucker waiting list, future buyers could purchase accessories, like seat covers, the radio, and luggage, before their car was built. This brought an additional $2,000,000 into the company.
With the final design in place, Preston Tucker took the pre-production cars on the road to show them in towns across the country. The cars were an instant success, with crowds gathering wherever they stopped. One report says that Tucker was pulled over by a police officer intent on getting a better look at the car.
To prove the road-worthiness of his cars, Tucker and his engineers ran several cars at the Indianapolis 500 in several endurance tests. During this testing, car #1027 was rolled at high speed while driven by mechanic Eddie Offut. The car's safety features were proven when Offut walked away from the severe crash. During the crash, the windshield popped out as designed, and afterward the car started up and was driven off the track.
One of Tucker's most innovative business ideas caused trouble for the company, however. His Accessories Program raised funds by selling accessories before the car was even in production. After the war demand for new cars was greater than dealers could supply, and most dealers had waiting lists for new cars. Preference was given to returning veterans, which meant that non-veterans were bumped down on the waiting lists indefinitely. Tucker's program allowed potential buyers who purchased Tucker accessories to obtain a guaranteed spot on the Tucker dealer waiting list for a Tucker '48 car.
This concept was investigated by the U.S. Securities and Exchange Commission and the United States Attorney, and led to an indictment of company executives. Although all charges were eventually dropped, the negative publicity destroyed the company and halted production of the car.