MARGO

Our skills and technologies are used by:

SHOL design solutions

Design your bespoke SHOL
charts & diagrams

SHOL offshore operations

Operate your VTOL aircraft from ships and offshore platform heldecks safer

SHOL design training

We train your organization’s SHOL designers


SHOL design solutions

We designed more than 8400 digital Ship–Helicopter Operating Limits (SHOL) charts for a wide range of helicopters and helipads :

  • From 1 150 kg to 33 400 kg aircraft.
  • Up to rotors with a diameter of over 24 m.
  • From 6 m radius up to 14 m x 14 m helipads.

We create SHOL diagrams tailored to your needs and digitalize your existing charts

  • With the MARGO Mark Z SHOL creation tool, organizing and conducting SHOL creation campaigns is 10 times faster and easier.
  • MARGO Mark Z software and our data analysis tools enable SHOL charts to be created in both the traditional paper format and our new, unique digital format within days of a campaign ending.

SHOL operations

Aviation operations on ships, offshore platforms and rigs:

  • SAFER
  • SIMPLER

The MARGO Mark Z app (iOS) integrates SHOL digital charts into your crew’s EFBs, improving the air-safety and performance of your flight operations.

MARGO is designed for: 

  • Rig and ship crew: flight deck officers and airbosses.
  • Helicopter pilots

SHOL design training

We provide training courses on landing and take-off issues in offshore areas.
We train future designers of your diagrams.

One- to two-week training courses, depending on level:


MARGO for SHOL design ensures a fully integrated process with your organization’s internal network and verifies the integrity of the data.

MARGO for SHOL design software suite will make it easier for you to create your SHOL charts and use them in your organization.

This software suite MARGO Mark Z is named by the French Ministry of Armed Forces as ZEPHYR-HEOL

End-to-end systems, it includes the creation tools, the validation workflow and the operational interface to deploy SHOLs on your ships and helicopters, with dedicated applications (Windows and iOS).​

  • ZEPHYR is dedicated to SHOL design
  • HEOL to aviation operations (ship crew and aircraft crew)

MARGO Mark Z suite (aka ZEPHYR-HEOL within French Navy)

  • has been in operational service with the French Armed Forces (French Navy) since July 2024
  • Full Operational Capacity (FOC) was reached in autumn  2024
  • System on board all helideck vessels, from OPVs to aircraft carriers, LHDs and destroyers with all their embarked helicopters, whatever their origin: naval aviation, air and space, army, customs, civil security, allies & partners helicopters.

SHOL chart design

432 TECHNOLOGIES‘ teams have designed and digitized more than 8400 SHOL charts for these VTOL aircraft types (tabs by manufacturer’s origin):

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