LADS airborne equipment is modularised
and mountable via seat rails in most fixed wing aircraft. LADS
airborne equipment is mounted in a Fokker F27-500 for the Royal
Australian Navy.
| Transit
Cruise Speed: |
220kts |
Survey
Height: |
1,640ft (500m) |
| Transit
Altitude: |
to 20,000ft |
Pilot
Display: |
track, height, ground
speed for manual or automatic flight operation |
| Ferry
Range: |
1,800km |
Auto
Pilot: |
Smiths SEP-2F coupled
for LADS height and track control |
| Ferry
Load: |
LADS airborne equipment
plus 18 passengers |
Aircrew: |
2 pilots |
| Survey
Endurance: |
7 plus hours |
Crew
Facilities: |
galley and rest area |
| Survey
Speed: |
145kts (75m/s) |
|
|
LADS airborne equipment is modularised
and mountable via seat rails in most fixed wing aircraft. LADS
airborne equipment is mounted in a Fokker F27-500.
| Sounding
Platform: |
3 axis stabilised;
±5º roll;-1.5 to ±3.5º pitch; ±20º yaw |
Console: |
dual station; plasma
data displays; calibrated video track display; depth sounding
signal display |
| Laser: |
Nd:YAG |
Communications: |
intercom (4 nets);
HV; VHF |
| Wavelength
(IR): |
1,064nm |
Position
Fixing: |
GPS 5 channel(P code) |
| Wavelength
(Green): |
532nm |
Sortie
Plan: |
ground planned survey
and calibration objectives and system parameters |
| Laser
Tuning: |
automatic |
Sortie
Plan Media: |
3.5" floppy disk |
| Laser
Safety: |
eye safe to AS2211-1991
at survey height |
Recorded
Data: |
raw depth soundings;
position; system data and equipment status |
| Beam
Geometry: |
vertical 1,064nm
and scanned 532nm beams |
Recording
Media: |
6,250 bpi tape |
| Sounding
Rate: |
168 per second |
Video
Data: |
video ground track
and superimposed data; audio intercom, HF, VHF communications |
| Swath
Width: |
240 metres (nom) |
Video
Media: |
VHS PAL |
| Sounding
Spacing: |
10m nominal |
Power
Requirements: |
+28VDC 7kW |
| Scan
Pattern: |
orthogonal to planned
track |
LADS
Survey Crew: |
1 or 2 |
The laser beam geometry has been
designed to cover the widest swath while maintaining performance
and accuracy.
A 240m wide matrix of depth soundings
at nominal 10m intervals is recorded on each survey run allowing
total area coverage to be built up by overlapping survey runs.
This provides significant benefits over conventional shipborne
sonar.
Depth
Sounding Rate:
|
168 soundings per
second |
Survey
Coverage:
|
100% area |
Swath
Width:
|
240m at 500m height |
Transit
Cruise Speed:
|
220kts |
Scan
Pattern:
|
orthogonal to planned
track |
Transit
Altitude:
|
to 20,000ft |
Sounding
Density:
|
24 soundings/transverse
scan; nominal 10m x 10m grid |
Ferry
Range:
|
1,800km |
Soundings
per sq km:
|
10,000 |
Ferry
Load:
|
LADS airborne equipment
plus 18 passengers |
Soundings
per hour:
|
550,000 |
Data
Processing Time:
|
approx 1:1 with survey
time |
Survey
Speed:
|
75m/s (145kts) |
Database
Size:
|
on-line storage for
secondary sounding data for 120 sorties |
Survey
Height:
|
500m (1640ft) |
Depth
Sounding Accuracy:
|
better than 0.3m
(one standard deviation) over depth range 2-30m |
Depth
Range:
|
2 to 50m |
Positional
Accuracy of Soundings:
|
15m |
Area
Coverage:
|
54 sq km/hour |
Laser
Safety:
|
eye-safe to AS2211-1991
at survey height |
Survey
Track-keeping:
|
±5m |
Operational
Capability:
|
day/night operation |
Survey
Endurance:
|
7 + hours |
Configuration:
|
self-contained with
maintenance facilities for remote site operation |
