## Journal of the Franklin Institute, Volume 266Pergamon Press, 1958 Vols. 1-69 include more or less complete patent reports of the U. S. Patent Office for years 1825-1859. cf. Index to v. 1-120 of the Journal, p. [415] |

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**problem**. Between these two**problems**lies what we shall call the burning - time**problem**. In this**problem**, the shape of the thrust curve is specified , but not the scale ; that is , T ( t ) f is known , but the scale factor a is free ...Page 160

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**problem**, then , we minimize the fuel consumed , subject to specifying the following conditions : the initial mass , position , and velocity , and no more than four conditions on the position and velocity at the end of burning . In the ...Page 179

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**PROBLEMS**In this section , we turn from the maximum range**problem**to the more difficult orbit**problem**. There is , of course , a wide variety of possible orbits , and we cannot try to treat them all in detail . We choose for treatment ...### Contents

JULY 1958 No | 1 |

Effects of Unipolar Air Ions on Microorganisms and on Evaporation | 9 |

Plastics in the Space Age JOHN H Lux | 21 |

7 other sections not shown

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acceleration accelerometer analysis angle applied Atomic attacking moments axis Bell Telephone Laboratories Benjamin Franklin Parkway Chairman chapter coefficients Committee components conjugate frames constant diagrams difference equations discussion Donald Wills Douglas Earth effect electrical electronic energy Engineering error ferrocene field flight fluid force Franklin Institute Franklin Institute Laboratories function gyro gyroscope heat hinge rotations inertial guidance inertial guidance system initial instrument LEPAGE linear load M₁ mass material mathematical mechanism Medal method momentum navigation nuclear obtained operation paper particles perturbation Phila Philadelphia physical plastic platform position Poynting theorem present Price problem proper frame radius range reactor reference rest mass rocket Science shown in Fig solution space techniques temperature theory tion torque trajectory transformation tube velocity voltage York z-transform zero Δφ