A&P ToolboxThis app assists the aircraft airframe and powerplant (A&P) mechanic in determining common measurements in several subject matter areas. Source for formulas is FAA AC43-13b.Sheet Metal:- Setback- Developed Width- Rivet Size- Bend AllowanceWeight and Balance:- Basic Empty Weight CG- Ballast and Weight Shift- CG Adjustment For Alterations- Adverse LoadingDisclaimerThe user of A&P Toolbox for any specific application without an independent verification of its accuracy does so at his/her own risk and assumes any and all liability resulting from such use. No warranty is offered as to the accuracy of results. Users should have a thorough understanding of the relevant theoretical criteria. A&P ToolboxCopyright 2020TurboSoftSolutions