C-40 Cockpit Indicator
For Use with Onboard Weighing Systems
The cockpit indicator is a key component of your Onboard Weighing System as it displays the weight of the cargo hook load to the pilot during external load missions. Our latest generation C-40 model builds on the legacy of its predecessor, the C-39 Cockpit Indicator, and has been designed from the ground up to incorporate operator-requested features to measure and display the cargo weight.


Benefits
- Simplifies Hook TBO Tracking — Includes an “Hours of External Load” meter to record time against the hook time between overhaul (TBO) schedule.
- Digital RS-232 Output — Interfaces with Automatic Flight Following (AFF) equipment for contracts requiring location and weight reporting.
- Maximum Load Input — Easy to adjust as part of your daily weight and balance calculation process.
- Full Digit Display — Shows actual weight in real time; eliminates “times 10” calculations.
- Analog Bar Display — At-a-glance visual feedback changes color as maximum load is approached.
- Intuitive Interface — Just turn the knob to scroll through the options and push to select.
- Field Upgradable — Download software upgrades from our website onto a thumb drive and install.
- Improved Contrast — Blanview LCD screen provides better visibility in sunlight.
- Enhanced Performance Options — Can be configured to enable aircraft-specific performance increases, such as the extra load capabilities provided through the Airbus vehicle and engine multifunction display (VEMD).
Availability
The C-40 Cockpit Indicator is being rolled out to a wide variety of cargo hook kits and aircraft. Please refer to our current chart of products offering the C-40.
In addition, the C-40 is upgrade-compatible from the C-39, so it is easy for operators who want access to the advanced features provided by the C-40 to make the switch. Please refer to this article about how to upgrade your existing C-39 indicator to the C-40 for more information.
Please contact us for more information.
Featured Products

HEC Kit for the MD500
Our Human External Cargo (HEC) hook kit for the MD500 aircraft series provides an STC-certified solution for a variety of CFR Part 133 external load missions.

Blackhawk Replacement Hook Kit
Find out more about our FAA Certified replacement cargo hook kit for the Sikorsky UH-60 Blackhawk.

Crew-Loc Full Cage Hook, Gen 2
Onboard's second-generation, full-cage Crew-Loc hook offers the ultimate in load security for transporting high-value loads.

HEC Kits for the Bell 206L & 407
Onboard Systems has developed STC Human External Cargo (HEC) hook kits for the Bell 206L and Bell 407 aircraft.
Airbus H125 CRFS Retrofit Kits
Upgrade your Onboard Systems cargo hook swing kit to work with a CRFS.

Electric Swivels
Improve your helicopter's external load operations performance, prevent damage to electrical cables, and promote helicopter flight safety with electric swivels from Onboard Systems.