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High-speed mass transportation, a new concept : an exploratory study by members of the faculty of Rensselaer Polytechnic…

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INTRODUCTION (Foa) The thoughts presented in this report concern primarily a new mode of intercity travel. Their implications…
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2 New World, and were fed by them in return. On the other hand, there is cause for alarm in the mechanism by which the…
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-----------------------------------~---~-" In addressing itself to this immediate problem, the RPI study has been…
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4 is not whether this can be done but how it can be done best. Several solutions have been proposed. One of them has been…
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BIBLIOGRAPHY von Keszycki, H.J., "The Motion of a Self-Propelled Body in a Tube," Rensselaer Polytechnic Institute…
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SECTION A PROPULSION by Joseph V. Foa . ,
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A. PROPULSION (Foa) A-I. ABSTRACT The power required for propulsion of a vehicle in a tube depends on the flow disturbances…
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A-2 the vehicle acts in relation to the adjacent air masses like a driving piston, and a great deal of P9wer has to be…
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internal propulsion the transfer is the very process through which the thrust is generated. The transfer can be effected in a…
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A-4 other words, the power that is required to maintain the motion of a vehicle in a tube depends on the manner in which the…
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understood, but there are indications (Ref. 1) of the existence of a range of operating regimes within which the wake flow is…
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A-6 potential superiority of internal over external modes is small at low speeds but increases with increasing cruising…
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A-7 consisting of a nose fan, for two different tube diameters and for the crusing speed range that is likely to be of…
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A-a between the tube wall and all mechanical components of the thrust generator. If a propeller or fan is used, its diameter…
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A-9 independently driver compressor in the rear of the vehicle provides boundary layer suction and an emergency supply of…
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A-IO. A-5. CONCLUSIONS AND RECOMMENDATIONS Preliminary analyses have shown that the power required for propulsion of a high-…
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REFERENCES 1. Foa, J.V., "Propulsion of a vehicle in a tube", Rensselaer Polytechnic Institute Tech. Rept. TR AE…
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180 P HPx163 160 140 100~ ________________ ~ VEHICLE DIAMETER 9Ft. LENGTH OF RUN 150 Miles Ave.acceleration and…
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fs HP/passenger VEHICLE DIAMETER LENGTH OF RUN Ave. acceleration and deceleration 150 Miles 5 Ft./sec~ ~ :§>…
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FIG. A-3 FIG. A-4
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FIG. A-5 FIG. A-6
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SECTION B SUPPORT by Henrik J. Hagerup
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B. SUPPORT (Hagerup) B-1. INTRODUCTION The preliminary design parameters of the vehicle-in-the- tube system that bear…
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B-2 must be free to rotate within a cradle supported by the wheels, which might then travel on fixed rails. Although it…
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B-3 In view of the complications that would be introduced in vehicle design and tube construction if wheel support were…
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