Rotating Magnetic Field 2 Roddy Mc Namee 2023-04-21 | This video reviews the rotating magnetic field and the mathematics that underpin it.
Resistive Starting of Single Phase Motor Roddy Mc Namee 2023-04-17 | This video shows how a single phase motor can be started without a start capacitor.
Setback formula - Sheetmetal Roddy Mc Namee 2023-03-14 | This video shows one particular method for calculating setback for sheetmetal applications.
Bend Allowance for Sheetmetal Applications Roddy Mc Namee 2023-03-14 | This video shows how to calculate the bend allowance using the 2xpi method for sheetmetal applications.
Calculating Bend Allowance and Setback Example Roddy Mc Namee 2023-03-14 | This example shows how to calculate the amount of metal required to manufacture a top-hat sheetmetal section using the 2xPi method.
Matching the aircraft, engine and propeller Roddy Mc Namee 2023-02-27 | This video hopes to show the importance of matching the engine and propeller to the aircraft to achieve maximum efficiency.This is a re-recording as the original video had an error in it that just needed to be corrected.
Rotating Magnetic Field 2 Roddy Mc Namee 2023-01-04 | This is a belated update to a previous video on rotating magnetic fields. It shows the mathematical proof that the sum of 3 phases that are 120 degrees apart and 120 degrees out of phase is a rotating magnetic field.
Propeller Coefficient of Thrust Roddy Mc Namee 2022-12-02 | This video looks at how a formula for a propeller coefficient of thrust was derived. It is almost completely based on a page from the MIT website. It's a lot longer than I wanted or planned, so apologies for that.
Calculating most efficient Propeller Blade Angle Roddy Mc Namee 2022-03-21 | This video shows how the Blade Angle or Angle of Attack for a propeller can be determined from flight conditions if an efficiency is assumed./Froude Momentum Theromyoutu.be/hXmSxpGV4ps
Compressor Efficiency at altitude Roddy Mc Namee 2021-09-10 | This video trys to explain why aircraft engines are more efficient at altitude. Gas Turbine engine efficiency is related to the compressor pressure ratio, and it is easier for compressors to work at altitude in the colder air.
Using a casio calculator for e functions 1 Roddy Mc Namee 2021-06-24 | This shows how to use the e function on a Casio Calculator
Minimum Power Required for a Prop Aircraft Roddy Mc Namee 2021-06-24 | This video shows how to determine the minimum power required for a propeller aircraft. It goes though the derivation of a formula that provides the minimum power required for a piston engine aircraft.It is based on the assumption that at steady state, the thrust = drag and that the coefficient of drag Cd = Cd0 +KCl^2. It therefore assumes that that designer knows the drag coefficient of the intended aircraft.
Inlets 2 Types of inlets Roddy Mc Namee 2021-06-24 | This video explains the different types of Engine Inlets.
Inlets 1 - Review of Bernoullis Theorm Roddy Mc Namee 2021-06-24 | This video reviews Bernoulli's theorm and applies it to the intake of Gas Turbine engines.
Nozzles - Intuitive explanation of Critical Pressure Roddy Mc Namee 2021-06-24 | This video tries to explain what the critical pressure is.
Centrifugal Compressor Power Roddy Mc Namee 2021-06-24 | This video derives the equation to determine the power required for a centrifugal compressor.
Derivation of Critical Pressure Quick Version Roddy Mc Namee 2021-06-24 | This is a very quick run through of where the formula for the Critical Pressure comes from.
Method of Joints Example 1 Roddy Mc Namee 2021-06-24 | The is an example of how to calculate the forces in truss members using the method of joints.
Propeller Static Thurst Equation Roddy Mc Namee 2021-04-09 | This video derives an equation to determine the static thrust produced by a propeller.I've used some values that were measured in another video. youtu.be/D-eBnXrWJYw
Deflection of a UDL Cantilever Roddy Mc Namee 2021-03-15 | This video derives the formual to calculate the deflection of a cantilever beam with a Uniform Distributed Load.
Deflection of a cantilever beam with a Parabolic Load Roddy Mc Namee 2021-03-10 | This video derives the formula to determine the deflection along any point of a cantilever with a parabolic load.
Deflection of a UVL Cantilever Roddy Mc Namee 2021-03-10 | This video derives an equation that determines the amount of deflection of a cantilever beam with a uniform varying load applied.
Excel Pivot Table Roddy Mc Namee 2021-02-23 | This video shows how to create a Pivot Table in Excel. It uses the example of Airworthiess Directives for an aircraft.
Determination of V0 from Froude Momentum Theory when only Power is provided. Roddy Mc Namee 2021-02-19 | This video suggests a method to determine Vo from Froude Momentum Theorm when the only data provided is the power of the propeller. It was created in response to a question from a viewer. Any improvements, errors etc noticed will be welcome.
Centrifugal Turning Moment Flat Plate Roddy Mc Namee 2021-02-19 | This is a description of the Centrifugal Turning Moment applied to a flat plate. It was made with the help of a view from the Netherlands. (www.wonderful-mechanics.nl)
Excel - xlookup Function Roddy Mc Namee 2021-02-19 | This video give a very short example of how to use the XLOOKUP function.
Excel - VLOOKUP function Roddy Mc Namee 2021-02-19 | This video gives a short demonstration of how to use the VLOOKUP function in Excel.
Excel - Creating a Drop Down List Roddy Mc Namee 2021-02-19 | How to create a drop down selection list in Excel.
Excel - Convert Function Roddy Mc Namee 2021-02-19 | This video gives an example of how to convert fuel quantities from imperial volume units (US Gallons) to SI units (Litres and kg).
Video 17 Example 6 - Shear Force and Bend UVL Cantilever Roddy Mc Namee 2021-02-19 | This video shows how to determine the Shear Force and Bending Moment of a uniform varying load on a cantilever.
Video 16 Centroid for a UVL Roddy Mc Namee 2021-02-19 | This video explains why the centroid of a unifrom varying load is at 1/3 the length of the base.
Video 15 Derivation of formula for SF and BM of a UDL simple supported Roddy Mc Namee 2021-02-19 | This video shows how to derive the Shear Force and Bending Moment formula for a simply supported beam with a uniform distributed load.
Video 14 Relationship between Shear Force and Bending Moment Roddy Mc Namee 2021-02-19 | This video shows the relationship between Shear Force and Bending Moment, and shows that the sum of the shear force area is equal to the bending moment.It looks at the results of a previous example.Example 1c link.youtu.be/BXs4r69Vchc
Video 13 Shear Force and Bending Moment Example 5 Roddy Mc Namee 2021-02-19 | This is an example of how to calculate the Shear Force and Bending Moment for a simply supported beam.
Video 12 Shear Force and Bending Moment Example 4 Roddy Mc Namee 2021-02-19 | This video shows how to determine the Shear Force and Bending Moment for a simply supported beam.
Video 11 Shear Force and Bending Example 3 Roddy Mc Namee 2021-02-19 | This video shows how to calculate the Shear Force and Bending Moment of a simply supported beam.
Video 10 Plotting the SF and BM diagrams for Example 2B with Excel Roddy Mc Namee 2021-02-19 | This video shows how to plot the SF and BM diagrams for Example 2b.
Video 9 Shear Force and Bending Moment Example 2B Roddy Mc Namee 2021-02-19 | This video shows how to determine the Shear Force and Bending Moment for a simply supported beam.
Video 8 Plotting the SF and BM diagram for Example 2 using Excel Roddy Mc Namee 2021-02-19 | This video shows how to plot the Shear Force and Bending Moment diagram for Example 2 using Excel.
Video 7 Shear Force and Bending Example 2 Roddy Mc Namee 2021-02-19 | This is an example of how to determine the Shear Force and Bending Moment of simply supported beam carrying a uniform distributed load (UDL).
Video 6 - Plotting the SF and BM diagram for Example 1c in Excel Roddy Mc Namee 2021-02-19 | This video shows how to plot the Shear Force and Bending moment diagrams for Example 1c in Excel.
Video 5 Shear Force and Bending Moment Example 1c Roddy Mc Namee 2021-02-19 | This video shows how to determine the Shear Force and Bending Moment of a simply supported beam
Video 4 - Plotting the SF and BM for Example 1b with Excel Roddy Mc Namee 2021-02-19 | This video shows how the SF and BM for Example 1B can be plotted with Excel.
Video 3 Shear Force and Bending Moment Example 1B Roddy Mc Namee 2021-02-19 | This is an example of how to determine the Shear Force and Bending Moment for a simply supported beam.
Video 2 - Drawing the SF and BM Diagram for Example 1 Roddy Mc Namee 2021-02-19 | This video shows how EXCEL can be used to plot the Shear Force and Bending Moment Diagrams for Example 1
