Marine "Prop-Shaft" Dynamometers - Specifications
 
 

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Land & Sea

(603) 226-DYNO

Click to Dynamometer Comparisons page.*Absorber capacities are RPM dependant. Water brakes require a minimum water flow of 1 gpm @ 30+ psi for every 20 continuous Hp.

"Call Land & Sea, Inc. at (603) 226-3966 for approximate power limits of specific configurations."


 
Click to Absorber Load Charts page.

DYNOmite Data-Acquisition Computer:

Expandable, surface mount, board system runs on 120-volt 60-Hz AC, 240-volt 50-Hz AC, or 12-volt DC
Portable “Pro” 28-channel capable handheld with 168-character LCD & keypad
Up to 1,000 recordings per second (per channel)
Quick disconnect data harness
Non-volatile set-up memory
Rechargeable back-up battery option
Captures over 1-hour duration test runs
Real time and data playback displays
Observed and SAE corrected reports
“Smart Record” automated recorder triggering
RS-232 or USB output to optional printer or PC with DYNO-MAX 2000 software option

Torque Transducer:

Waterproof strain gauge
1% of full scale typical accuracy
Semi-automatic zero offset calibration
Temperature compensated

Hp, Torque, and RPM Capacity:

Actual load capacity depends on selected water brake & test RPM (loading plots available)
Hp from 50 to 400 (standard - single-rotor)
Hp options from 2 to over 800
Torque options from 1 to over 1,000 lb-ft
RPM from 1,000 to over 12,000 (standard) - optional absorbers to over 17,000

Engine Tachometer:

0 - 32,000+ RPM LCD display
Quartz crystal calibrated
RPM pulse type is selectable from ½ to 12 pulses per revolution
Magnetic absorber pick-up (standard)
Optional “clamp-on” inductive pick-up

Load Control:

Manual knob water brake load valve (standard)
Optional Auto-Load Servo (High or Ultra-Flow)
Optional Electronic Throttle Controller

Water Brake Absorber:

13" absorbers require minimum clearance of 6-5/8" from prop-shaft to cavitation plate
Standard - “400” single-rotor toroid - 13"
Optional - “800” Siamese-rotor toroid - 13"
Optional - light-duty toroidal flow - 7" or 9"
CNC machined from aircraft aluminum
Dual heavy-duty sealed bearings
Stainless steel, heat treated arbor shaft
Adjustable load characteristics
External Zerk grease fittings
Optional “Auto-Lube” kit

Prop-Shaft Adapter Hardware:

Adapters for BIA 1"-15, 1"-19, and 7/8"-13 splined shafts (standard - single-rotor)
    1"-15, 1"-19 (optional - Siamese-rotor 13")
Other optional adapters and hardware available

Optional Inboard Engine Test Stand:

Heavy-duty zero torque design
Adjustable universal mounts
Leveling jack screw