mission aircrew course visual search patterns and procedures apr 2010
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Mission Aircrew Course Visual Search Patterns and Procedures (APR 2010). Aircrew Tasks. O-2022 DEMONSTRATE SCANNING PATTERNS AND LOCATE TARGETS (S) O-2102 DEMONSTRATE PLANNING AND FLYING A ROUTE SEARCH (P) O-2103 DEMONSTRATE PLANNING AND FLYING A PARALLEL TRACK SEARCH (P)

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aircrew tasks
Aircrew Tasks
  • O-2022 DEMONSTRATE SCANNING PATTERNS AND LOCATE TARGETS (S)
  • O-2102 DEMONSTRATE PLANNING AND FLYING A ROUTE SEARCH (P)
  • O-2103 DEMONSTRATE PLANNING AND FLYING A PARALLEL TRACK SEARCH (P)
  • O-2104 DEMONSTRATE PLANNING AND FLYING A CREEPING LINE SEARCH (P)
  • O-2105 DEMONSTRATE PLANNING AND FLYING A POINT BASED SEARCH (P)
aircrew tasks3
Aircrew Tasks
  • O-2109 ASSIST IN PLANNING AND PERFORMING A ROUTE SEARCH (O)
  • PERFORMING A PARALLEL TRACK SEARCH (O)
  • O-2112 ASSIST IN PLANNING AND PERFORMING A POINT-BASED SEARCH (O)
  • O-2111/O-2115 ASSIST IN PLANNING AND PERFORMING A CREEPING LINE SEARCH (O)
  • P-2027 DESCRIBE CAP SEARCH PATTERNS (S)
objectives
Objectives
  • Plan and describe how to fly the following search patterns:
    • Route (track crawl)
    • Parallel track (sweep)
    • Creeping line
    • Point-based (expanding square and sector)
  • Discuss how to plan and fly a Contour search pattern
the stupid check
The “Stupid Check”
  • “Hey! Wait a minute. This is stupid.”
  • Do my headings, waypoints, lat/long coordinates, and distances look sensible
  • Perform:
    • After planning
    • When you start your pattern
    • Periodically thereafter
examples
Examples
  • The following examples and worksheets are covered to aid in pre-planning a search pattern
  • Designed for non-moving map GPS, but include all the information you need to set up the GX55
  • Advantages of pre-planning:
    • Sets the details of the sortie in your mind
    • Makes entering data (correctly) into your GPS easier
    • Allows pilot and observer to concentrate on their primary task by minimizing navaid setup time and reducing confusion
latitude longitude and distance and the gps
Latitude, Longitude and Distance (and the GPS)
  • One minute latitude = 1.0018 nm
    • Fly one minute north or south, cover one nautical mile (a 1-nm leg width)
  • One minute longitude = anywhere from 0.6572 to 0.9152 nm in the continental U.S.
    • Means you’ll have to fly anywhere from 1.1 – 1.4 minutes of longitude (east or west) to cover one nautical mile
    • Not hard to do, but for trainingwe will useone minute = one mile, even though we’ll be flying less than 1-nm leg widths
    • To get the relationship in your area, go to http://jan.ucc.nau.edu/~cvm/latlongdist.php
    • 1 minute of Longitude = cos(Latitude in Degrees)
route search pattern
Route search pattern

Track of missing aircraft

Track of search aircraft

1/2 S

1/2 S

route search example
Route search example
  • Assume we’re searching for an aircraft along Highway 46, between Columbus and Greensburg:
    • Draw the route on the worksheet
    • Include significant turns in the highway and other identifiers such as towns, airports and major intersections
    • Search two miles either side of the highway
flying the route search

Flying the Route Search

  • GPS Data
  • Set up User Waypoints
  • Enter Route
  • Use CDI to indicate “S”
  • Starting Waypoint: BMG
  • Spacing: 1 nm
  • Number of Passes: 3
  • Start Side: Left
grid search example
Grid search example
  • Assume we’re searching STL #104-D for a missing aircraft:
    • Quarter-grid, 7.5' x 7.5‘
    • Enter the northeast corner
    • One nm track spacing
    • North/South legs
    • No aircraft assigned to adjacent grids
slide16
Grid search GX55
  • GX55 Data
  • Type Grid & Sectional: US , STL
  • Pattern: Parallel Line
  • Grid: 104D2
  • Spacing: 1 nm
  • Direction of Travel: N/S
slide17
Flying the Grid
  • GPS Data
  • Think ILS Approach.
  • Keep the Lat/Lon Centered.
  • Watch for Turn.
  • Intercept and Track.
  • Direction of Travel: N/S
  • Entry Point: NE Corner
  • Spacing: 1 nm
creeping line search pattern
Creeping Line search pattern

Direction of Search

s

s

s

s

s

creeping line search example
Creeping Line search example
  • Assume we’re searching for an aircraft along Highway 31:
    • Draw the route on the worksheet
    • Start at the intersection of Hwy 31/9 (southeast of Columbus)
    • Stop at the intersection of Hwy 31/50 (east of Seymour)
    • Search three miles either side of Hwy 31
    • 1-nm track spacing
creeping line search example cdi method
Creeping Line search example(CDI method)
  • Assume we’re searching for an aircraft along the extended runway centerline of BMG runway 06:
    • Draw the route on the worksheet
    • Search 10 nm beyond the end of runway 06 (southwest)
    • Search three miles either side of the extended centerline
    • 1-nm track spacing
slide23
Creeping Line search worksheet example

(CDI)

  • GX55 Data
  • Type Grid & Sectional: US , STL
  • Pattern: Creeping Line
  • Starting Waypoint: BMG
  • Spacing: 1 nm
  • Direction of Travel: 060º
  • Leg Length: 3 nm
  • Start Side: Right
slide24
Flying the Creeping Line search

(CDI)

  • GPS Data
  • Determine Far Waypoint.
  • Fly to First Crossing Point.
  • Hit DIRECT TO (draws line).
  • Circle Back to Entry point.
  • Use CDI for XTrack.
  • Use Distance TO for Crossings.
expanding square search example
Expanding Square search example
  • Assume we’re searching for a missing ultra-light:
    • Draw the route on the worksheet
    • Center is a 483 AGL tower approximately 8 nm west of Seymour
    • Use cardinal headings, starting to the north
slide28
Expanding Square search worksheet example
  • GX55 Data
  • Type Grid & Sectional: US , STL
  • Pattern: Expanding Square
  • Starting Waypoint: N 38º 59´ W 86º 10´
  • Spacing: 1 nm
  • Direction of Travel: 000º
sector search pattern
Sector search pattern

S max

The pattern and headings

are planned in advance

S mean

Sector search is easier to fly

than expanding square

This pattern is used when an

electronic search has led the

crew to a general area to find

the exact location visually

The pattern provides concentrated

coverage near the center of the area

contour search pattern
Contour search pattern

This is a difficult and dangerous pattern to fly.

Requires special training such as the Mountain Flying course.

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