DiscoverHover One TABLE OF CONTENTS Hello Hovercraft Constructor Letter……………………….……..3 License…………………………………………………………....4 General Construction Tips………………………………………..5 Parts List………………………………………………………….27 Assembly Structure……………………………………………….29 Drawings………………………………………………………….32 TM HOVERCRAFT CONSTRUCTION MANUAL DiscoverHover www.discoverhover.org The World Hovercraft Organization’s International School Hovercraft Program All Material c 2003 World Hovercraft Organization All Rights Reserved
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ELECTRICAL ENGINEERING – Vol. III - Direct Current Machines - Edward Spooner DIRECT CURRENT MACHINES Edward Spooner The University Of New South Wales‚ Australia. Keywords: Electric machines‚ dc motor‚ electromagnetic induction‚ Faraday ’s Law‚ commutator. Contents U SA NE M SC PL O E– C EO H AP LS TE S R S 1. Introduction 2. Magnetism and Electromagnetic principles 2.1. Permanent Magnets 2.2. Magnetic Field around Conductors 2.3. Magnetic Field around a Coil 2.4. Electromagnets
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Recommended Procedures and Guidelines Testing and Extrapolation Methods Propulsion‚ Performance Propulsion Test 7.5-02 -03-01.1 Page 1 of 14 Effective Date 2002 Revision 01 Table of Contents 1 2 3.3.2.1 Propeller Thrust .............................7 3.3.2.2 Propeller Torque ............................7 3.3.3 External Tow Force.......................7 3.3.4 Rate of revolution..........................8 3.3.5 Sinkage and trim ...........................8 3.3.6 Speed ..........
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of a propeller but not sufficient information for the detailed design. Detailed information can be obtained through analysis of the forces acting on a blade element like it is a wing section. The forces acting on a small section of the blade are determined and then integrated over the propeller radius in order to predict the thrust‚ torque and power characteristics of the propeller. R ω c r dr dT w Ve VR V dL αi β α φ dF ωr dD Figure 1. Propeller blade
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Some countries in the world use a 24 hour clock. In other words‚ instead of saying 3 a.m. and 3 p.m. to distinguish between morning and afternoon times‚ they say 0300 and 1500. In many countries‚ this is the standard and is called the 24 hour clock. In a few countries‚ like the U.S.‚ a 12 hour clock is the standard default for the general population‚ but certain sub-populations‚ such as the military‚ use the 24 hour clock. In those countries‚ this is often referred to as military time. For the
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What Are Aircraft? Everyone has seen a jet streaking across the sky leaving a trail of vapor as it goes. Maybe you have heard the distinct thud‚ thud‚ thud as a helicopter slows in its descent. You have probably marveled at a plane so massive that it seems to just hang in the air by some invisible force. These wonderful marvels of human engineering have captured the hearts of many. They are known the world over as aircraft. But what is an aircraft? Aircraft’s are comprised of many different things
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HOW TO BUILD A MULTICOPTER (DIY):- If you build lite and keep the aircraft lite it will fly like a dream. Usually people use payloads:- Cameras:- a GoPro HeroHD2 or HD3 ‚ a Panasonic GH2/GH3 or Nex5/Nex7 or a NikonV1/J1 camera. SLR cameras can be flown but their large heavy mirror designs are irrelavant in the air when the pilot is actually on the ground not using the mirror box. The new generation of mirrorless cameras such as the GH2/GH3 and Nex5/Nex7 which produce Pro quality video as minimal
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Name__________________________________________ Total Score_____________ Lesson Plan for Preschool Theme (Focus): Weekly ______________________ Daily ________________________ Circle Time: (19 points) A. Title of your Greeting Song ______________________________________________________________________________ B. Title of your Songs/ Fingerplays ______________________________________________________________________________ C. Theme (Focus): Fact
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Construction Drawing ……………………………… 46 10. Shell Expansion Drawing ……………………………… 49 11. Resistance & Power Calculation ……………………………… 51 12. Engine Selection ……………………………… 57 13. Rudder Design ……………………………… 61 14. Propeller Shaft Design ……………………………… 71 15. Propeller Design ……………………………… 76 16. Weight & Stability Calculation ……………………………… 86 17.
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Propeller Systems and Performance The accident investigator has to understand the primary and secondary systems and components of the turbine engine‚ including the induction‚ fuel delivery‚ fuel metering‚ water injection‚ ignition‚ lubrication‚ starting‚ electrical‚ charging‚ cooling‚ exhaust‚ instrumentation‚ engine overheat‚ and fire detection systems. The investigation of the turbine engine induction system focuses on the engine performance and the scheduling of air and fuel
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