Miniaturized Trawl Resistant Bottom Mount (MTRBM) Systems
Protecting Instruments From Trawlers
Mooring Systems, Inc. manufactures a trawl resistant bottom mount designed for protecting oceanographic instrumentation from trawler gear.
These instrument platforms are ideally suited for use with up looking Doppler profilers, and provide sufficient space for extra battery housings, and other instrumentation.
Custom Designed Bottom Mount Systems
Optional diver serviceable instrument mounts and acoustically activated pop-up buoys are available to suit specific applications.
The basic construction of our MTRBM consists of a truncated rectangular fiberglass cover over a fiberglass grate.
Purge holes in the upper perimeter of the cover, and handles are standard. Holes in the top surface are placed as needed to meet instrument mounting requirements.
- Options:
- Dual Axis Gimbals for Doppler Profilers
- Custom Instrument Mounting Brackets
- Recovery System (Pop-up Buoy) (Not on Micro Version)
- Center Deployment and Recovery Post
- Center Deployment Ring (Micro Version)
- Lead Ballast
- Anti-Foul Paint
MTRBM System Specifications:
| Model: | Micro-MTRBM | Standard MTRBM |
| Cover Material | 1/4" (6.4 mm) fiberglass | 1/4" (6.4 mm) fiberglass |
| Base Material | 1" (25.4 mm) fiberglass | 1" (25.4 mm) fiberglass |
| Gimbals | PVC / stainless | PVC / stainless |
| Fasteners | 316 stainless | 316 stainless |
| Length | 52" (1320 mm) | 70" (1775 mm) |
| Width | 42" (1067 mm) | 48" (1220 mm) |
| Height (Outside) | 14" (355 mm) | 18.5" (470 mm) |
| Height (Inside) | 11" (280 mm) | 17.25" (438 mm) |
| Weight In Air | 80 lbs. (36 kg) empty | 132 lbs. (60 kg) empty |
| Weight In Water | 30 lbs. (14 kg) empty | 50 lbs. (23 kg) empty |
If you have any questions, feel free to contact us.
Above: Standard MTRBM system manufactured by MSI
Above: Micro-MTRBM system (left) manufactured by MSI
Above Left: Gimbal mount for ADCP, ADP, AWAC
Above Right: Center deployment and recovery post
Tripod Bottom Mount Systems
Gimbaled ADCP Platforms
Mooring Systems, Inc. manufactures a lightweight tripod style bottom mount.
This open version instrument platforms is ideally suited for use with upward looking Acoustic Doppler Current Profilers.
Gimbaled mounting hardware provides proper orientation of the transducer head on sloping sea-beds.
Additional mounting is available on the tripod braces for extra battery housings, and other instrumentation.
An optional acoustically activated pop-up buoy with high strength Spectra line to hoist the platforms on deck allows recovery without the use of divers.
- Features:
- Dual Axis Gimbals
- Lightweight Construction
- Knocks Down for Compact Transportation
- Corrosion Resistant 6061 Aluminum
- Zinc Anodes for Added Protection
- Removable Lead Ballast
- Welded Pick-Up Bail
- Lowering Eyes (2)
- Powder Coat or Epoxy Paint Finishes
- Brackets for Additional Instrument Housings
Tripod Mount Specifications:
| Frame Material | 6061 Aluminum |
| Dual Axis Gimbals | PVC |
| Fasteners, Eye Nuts | 316 Stainless Steel |
| Angle of Legs | 45 degrees |
| Overall Height | 20" (0.5m) |
| Overall Diameter | 60" (1.5m) |
| Air Weight | 68 lbs. (31 kg) w/ Lead Ballast |
| Water Weight | 56 lbs. (25 kg) w/ Lead Ballast |
| Standard Lead Ballast | 30 lbs. (13.6 kg) |
If you have any questions, feel free to contact us.
Above: Open tripod with yellow painted finish
Above: Tripod with bright unpainted finish
