### Learn Excel in 15 Seconds – Quick, Easy & Free Excel 15 Second Video Tutorials. Quickly Learn Basic Formulas & Functions.

March 8, 2017 9:05 pm

Learn Excel in 15 Seconds - Quick, Easy & Free Excel 15 Second Video Tutorials. Learn Excel Formulas & Functions for Free.

### Learn Excel in 15 Seconds-How to Copy Excel Formula-Paste-Drag-Double-Click

February 23, 2017 8:36 pm

Learn Excel in 15 Seconds - Excel Tutorial 3 – How to Copy-Paste-Drag-Double-Click The 3 most common ways of copying an excel formula are shown. The 15 Second Video Tutorial...

### Learn Excel in 15 Seconds-How to use Cell-References in Formulas

February 16, 2017 10:03 pm

Excel Tutorial 02 - How to use Cell-References in Formulas Hint 1: Remember, always start a formula with an "=" sign. Hint 2: Don't sweat it, if you don't get it, just stop the Video and Replay it. The 15 Second Video Tutorial...

### Learn Excel in 15 Seconds – How to Add, Subtract, Multiply & Divide Numbers in Excel – Easy Excel Formula

February 15, 2017 10:02 pm

Excel Tutorial – 01: Learn How to Add, Subtract, Multiply & Divide Numbers in an Excel Cell. Hint 1: Always start a Formula by... View Article

### Audit Formula in Excel. The 1 Step Solution. Free Excel add-in.

February 4, 2017 12:21 pm

Perfect tool for Engineering Calculations. The new, fun, free and easy way to check, display and audit your excel calculations.

January 21, 2017 10:02 am

Check Excel Spreadsheet Formula with the Excel xln and xlv check and display functions. These Excel functions will check your excel formula by displaying all the values, numbers or variables of each formula.

### Excel Formula Auditing Functions – The One Step Solution to Formula Auditing in Excel

January 5, 2017 8:29 pm

The XL-Viking xln & xlv Excel Formula Auditing Functions allows Quick & Easy Auditing & Checking of Excel Formulas.  The Formula Auditing Functions will display the Values, Numbers or Variables of Your Excel formula.

### Show Excel Formula – How do you show formulas in excel? Show formula in excel cells instead of value

March 9, 2016 8:26 pm

Show Excel formula values. Show Excel formula numbers. Show the math behind your excel formulas. Show excel formulas in a way that makes sense and look great.

October 23, 2014 12:17 pm

Simple approach for calculating thermal stresses.

### AA-SM-511 Loads – Lift and Drag for Inclined Flat Plate

October 23, 2014 12:15 pm

Simple drag loads and lift loads calculation for an inclined plate for a given Altitude and Speed.

### AA-SM-510 Loads – Incremental Wing Lift for Plain Flaps

October 23, 2014 12:13 pm

Delta Cl for varying flap configurations.

### AA-SM-509 Loads – Conversion between airspeeds

October 23, 2014 12:11 pm

Conversion between VTAS, VEAS & VCAS.

October 23, 2014 12:09 pm

Compression load at ribs in a wing box due to brazier effects.

October 23, 2014 12:07 pm

Derivation of seat attachment loads for variable seat attachment geometry and occupant CG.

October 23, 2014 12:05 pm

Derivation of powerplant loading at the engine CG and propeller CG per part 23 regulations.

October 23, 2014 12:03 pm

Spreadsheet to calculate the increase in airfoil lift gradient at speed below mach 1.

October 23, 2014 12:01 pm

Simple landing gear loads derivation based on a defined shock strut efficiency factor per the part 23 appendix approach.

### AA-SM-502 Loads – Part 23 Normal Category Aircraft Gust Load Factors

October 23, 2014 11:58 am

Derivation of maximum positive and negative gust load factors for a given aircraft configuration.

October 23, 2014 11:56 am

Simple drag load calculation for a given Cd, Altitude, Speed and Area.

### AA-SM-300 Certification – FAA Part 25 Compliance Matrix Subparts C & D

October 23, 2014 11:54 am

Compliance matrix for the structures and design section of the part 25 aircraft regulations.

### AA-SM-240 Tools – Spring and Damper 2

October 23, 2014 11:51 am

Displacement and Force vs Time calculations for simple spring and damper system given an initial disturbance.

### AA-SM-233 Tools – Fifth Order Curve Fit

October 23, 2014 11:49 am

The derivation of a curve through 6 points using a matrix based mathematical solution.

### AA-SM-232 Tools – Fourth Order Curve Fit

October 23, 2014 11:46 am

The derivation of a curve through 5 points using a matrix based mathematical solution.

### AA-SM-231 Tools – Cubic Curve Fit

October 23, 2014 11:43 am

The derivation of a curve through 4 points using a matrix based mathematical solution.

### AA-SM-230 Tools – Quadratic Curve Fit

October 14, 2014 5:54 pm

The derivation of a curve through 3 points using a matrix based mathematical solution.

### AA-SM-224 Tools – Intersection of Line and a Circle

October 14, 2014 5:53 pm

General Method to determine the two points of intersection of a line with circle on a plane.

### AA-SM-223 Tools – Two Bellcrank Kinematic System

October 14, 2014 5:51 pm

General mathematical solution for a two bellcrank kinematic system.

### AA-SM-222 Tools – Intersection of two circles

October 14, 2014 5:49 pm

Mathematical solution for the two points of intersection between two planar circles.

### AA-SM-221 Tools – Wing in Ground Effect Performance

October 14, 2014 5:48 pm

Complex sheet for performance prediction of Wing in Ground Effect craft. Example in the sheet is for the Universal Hovercraft Hoverwing.

### AA-SM-219 Tools – Various Mass Balances – Linear and Rotational

October 14, 2014 5:47 pm

Methods for creating a quasi-steady state balance in two dimensions for two different mass systems.