NDLI: First design study of an electrical catapult for unmanned air vehicles in the several hundred kilogram range

Content Provider	IEEE Xplore Digital Library
Author	Reck, B.
Copyright Year	1965
Abstract	The principle of electromagnetic launch remains a permanent subject of military research because of its outstanding advantages. For instance, the acceleration profile is completely under control. The railgun is the first choice to accelerate low masses from some grams to several kilograms up to velocities greater than 1000 m/s. On the contrary, accelerating heavy masses such as combat aircraft leads to quite different solutions, namely to the use of linear induction machines. We have studied the launch of an unmanned air vehicle (UAV) weighing several hundred kilograms up to an initial velocity of 50 m/s with a linear synchronous motor (LSM) capable of replacing chemical boosters or mechanical launchers. This paper presents a basic concept study of a catapult for launching a UAV by means of an LSM. A numerical code has been developed to give the main characteristics (thrust, input power, efficiency, current, mass) of the launch system.
Sponsorship	IEEE Magnetics Society
Starting Page	310
Ending Page	313
Page Count	4
File Size	235987
File Format	PDF
ISSN	00189464
Volume Number	39
Issue Number	1
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2003-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Unmanned aerial vehicles Acceleration Synchronous motors Chemicals Rails Gravity Electromagnetic launching Railguns Aircraft Mechanical variables control
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
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