Process for estimating operational availability of a system

• US 20080082230A1
• Filed: 10/02/2006
• Published: 04/03/2008
• Est. Priority Date: 10/02/2006
• Status: Abandoned Application

• Current Assignee: Northrop Grumman Corporation
• Original Assignee: Northrop Grumman Corporation
• Inventors: Harvey, David F., Collipi, Thomas T.
• Application Number:
  US11/541,936
• Publication Number:
  US 20080082230A1
• Time in Patent Office: Days
• US Class Current: 701/29
• CPC Class Codes: G06Q 10/04 Forecasting or optimisation specially adapted for administrative or management purposes, e.g. linear programming or "cutting stock problem" market predictions or forecasting for commercial activities G06Q30/0202

Abstract

The invention is a process for determining the operational availability of a system and includes the following steps: 1) selecting values for flight hours per year, repair concurrency, annual preventative maintenance time and non mission capable-supply rate; 2) calculating the effects of usage rate, repair concurrency, and not mission capable-supply; and 3) calculating the operational availability of the aircraft based on the calculation of the effects of usage rate, repair concurrency, and not mission capable-supply.

Claims

1. A process for determining the operational availability of a system, the process comprising the steps of:

Determining Annual System Usage

determining number of sorties per year;

determining failures per year;

determining failures per sortie;

determining repair time per sortie;

determining elapsed repair time per sortie;

determining annual elapsed repair time;

determining annual preventative maintenance time per year;

determining annual total not mission capable maintenance hours per year;

determining annual total time not mission capable supply determining annual total down time determining uptime per year; and

determining operational availability.

A process for determining the operational availability of a system, the process comprising the steps of;

selecting values for flight hours per year, repair concurrency, annual preventative maintenance time and non mission capable-supply rate;

calculating the effects of usage rate, repair concurrency, and not mission capable-supply; and

calculating the operational availability of the aircraft based on the calculation of the effects of usage rate, repair concurrency, and not mission capable-supply.