000			03669nam a2200421Ii 4500
001			9780429428364
003			FlBoTFG
005			20220531132446.0
006			m o d
007			cr
008			181112t20182019flu b ob 001 0 eng d
020			_a9780429428364 _q(e-book : PDF)
035			_a(OCoLC)1047576509
040			_aFlBoTFG _cFlBoTFG _erda
041	1		_aeng
050		4	_a TL685.35
072		7	_aTEC _x010000 _2bisacsh
072		7	_aTQ _2bicscc
082	0	4	_a629.133/39
100	1		_aPrior, Stephen D., _eauthor.
245	1	0	_aOptimizing Small Multi-Rotor Unmanned Aircraft : _bA Practical Design Guide / _cby Stephen D. Prior.
250			_aFirst edition.
264		1	_aBoca Raton, FL : _bCRC Press, _c[2018].
264		4	_c©2019.
300			_a1 online resource (146 pages)
336			_atext _2rdacontent
337			_acomputer _2rdamedia
338			_aonline resource _2rdacarrier
504			_aIncludes bibliographical references and index.
505	0	0	_tIntroduction -- _t2 Lithium Polymer battery (power supply) --2.1 Safety considerations --2.2 Lithium Polymer discharge characteristics -- _t3 Electronic Speed Controller (ESC) --3.1 Timing --3.2 Cut-off voltage --3.3 Switching frequency -- _t4 The Brushless DC (BLDC) motor (outrunner) --4.1 BLDC motor construction and theory --4.2 Equivalent brushed DC motor equations --4.3 Comparing theoretical and empirical data -- _t5 The propeller (rotor) --5.1 Propeller or rotor? --5.2 Propeller variables --5.3 Propeller geometry --5.4 Simple momentum theory --5.5 Non-dimensional rotor (propeller) coefficients --5.6 Figure of Merit (FM) --5.7 Propeller efficiency (p) --5.8 Co-axial and overlapping rotor designs --5.9 Reynolds number, Re --5.10 Airfoil geometry --5.11 Airfoil theory Blade Element Theory (BET) --5.12 Online airfoil resources -- _t6 The system solution --6.1 IMechE UAS challenge a worked multi-rotor example --6.2 Measuring the propulsive efficiency --6.3 Forward flight --6.4 Dihedral and cant angles --6.5 Active thrust vectoring -- _t7 Conclusion --7.1 Economic and societal impact --7.2 Future directions, opportunities and threats -- _tAppendices--Appendix A1 Li-Po batteries ready reckoner (6S) --Appendix A2 A range of 6S Li-Po batteries with high specific energy (Wh/kg) (June 2018) --Appendix B Guidance on the safe use, handling, storage and disposal of Lithium Polymer batteries --Appendix C T-Motor BLDC motor selection tool --Appendix D Overall system selection spreadsheet --Appendix E Examples of multi-rotor systems built at the ASL --Appendix F Drone radio frequency legal requirements in the UK --Appendix G Example Pixhawk flight controller wiring diagram and mission planner set-up (PID tuning)
520	3		_aThis design guide was written to capture the author’s practical experience of designing, building and testing multi-rotor drone systems over the past decade. The lack of one single source of useful information meant that the past 10 years has been a steep learning curve, a lot of self-tuition and many trial and error tests. Lessons learnt the hard way are not always the best way to learn. This book will be useful for the amateur drone pilot who wants to build their own system from first principles, as well as the academic researcher investigating novel design concepts and future drone applications.
530			_aAlso available in print format.
650		0	_aDrone aircraft _xDesign and construction.
655		0	_aElectronic books.
710	2		_aTaylor and Francis.
776	0	8	_iPrint version: _z9781138369887
856	4	0	_uhttps://www.taylorfrancis.com/books/9780429428364 _zClick here to view.
999			_c72628 _d72628