LADS airborne equipment is modularised
and mountable via seat rails in most fixed wing aircraft. LADS
airborne equipment is mounted in a Dash 8 for the Royal
Australian Navy.
| Transit
Cruise Speed: |
220kts |
Survey
Height: |
1,200ft (500m) to 2,200ft (730m) |
| 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 5 passengers |
Aircrew: |
2 Pilots, 1 Flight Survey Coordinator, 1 light Survey Operator |
| Survey
Endurance: |
7 plus hours |
Crew
Facilities: |
galley and rest area |
| Survey
Speed: |
140kts to 210kts |
|
|
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: |
2 axis stabilised;
±5º roll; -1.5º to ±6.0º pitch; ±20º yaw |
Console: |
single station fully integrated graphical user interface (GUI); digital imagery acquisition, donward looking video recording, plasma
data displays; calibrated video track display; depth sounding
signal display |
| Scanning Mirror: |
Major (transverse) ±20º at 9Hz; Minor (longitudinal) +0.5º at 18Hz |
Digital Image Acquisition (DIA) Hard Drive |
Removable 80GB HDD saves time synchronised digital images. |
| Laser: |
Nd:YAG |
Communications: |
intercom (4 nets);
HF; VHF, Satellite phone |
| Wavelength
(IR): |
1,064nm |
Position
Fixing: |
Post Processed Kinematic Wide Area GPS |
| Wavelength
(Green): |
532nm |
Sortie
Plan: |
ground planned survey
and calibration objectives and system parameters |
| Laser
Tuning: |
automatic |
Sortie
Plan Media: |
CD |
| 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: |
400/800 GB LTO, 4 GB PCMCIA data card (GPS data only) |
| Sounding
Rate: |
900 per second |
Video
Data: |
video of ground track with superimposed data. Includes recordings from audio intercom, HF, VHF and satellite phone communications |
| Swath
Width: |
47 - 288 metres |
Video
Media: |
VHS PAL |
| Sounding
Spacing: |
2, 3, 4, 5 or 6m
Nominal is
5m |
Power
Requirements: |
+28V DC 7kW and 208V AC |
| 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 |
