Avionics Design Services Ltd.
Midland, Ontario, Canada

We are experts in avionics systems approvals in all types of aircraft. We have been providing design and approval services to the aviation industry for everything from in-flight entertainment to data acquisition to major avionics upgrades for over 10 years. Our client base ranges from small avionics shops to major airlines and manufacturers.


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Avionics Design Services was incorporated in 1996. The principal, and only employee, was a Transport Canada Delegated Airworthiness Representative for avionics and electrical systems with a background in aircraft modifications, ATE, data acquisition, simulation, metrology and recent experience in a new Aircraft programme, the Global Express.

Since then we have become a DAO (Design Approval Organization) and a Approved Manufacturing Organization of 15 staff with design and certification projects ranging from voice warning systems for helicopters, to TSO certifications of Audio Selector Panels, Interior Systems Design for corporate aircraft, Data Acquisition for flight test programmes or avionics retrofits, or special missions aircraft. We have Offices in Midland, Toronto, Vancouver and Calgary. We are also a CGA (Controlled Goods Approval) certified company.


Apple™ iPad™ EFB STC for Dash 8

We are excited to announce the ADS has redesigned the EFB kit for the Dash 8 Series 100/200/300/400 aircraft to dramatically lower cost and increase flexibility. We have added a Class 1 option as well for those who do not want a Class 2 installation. The iPad holder has been changed to a universal type from MyGoFlight that is adaptable to various size iPads including the iPad Mini and the iPad Air. It also accommodates protective cases. We have also updated the power supply to the True Blue TA202 series which provides additional charging power for the iPad 3.

ADS Announces Dual Battery Start for the DHC-8

STC SA16-109

This modification provides better cold weather starting capability for the DHC-100/200/300aircraft. It allows the auxiliary battery to be tied to the main battery during the engine startsequence. The system is armed using a switch on the overhead panel adjacent to the existingengine start switch. When the existing engine start switch is engaged, a high power relay closesto connect the auxiliary battery to the start bus to assist the main battery.

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ADS opens a new office in Mississauga!

The new office is located near the General Aviation section of Pearson airport and will allow ADS better service it’s GTA clients. It also gives us more space so we can take on more staff. This office will handle our growth requirements for the next few years.

Apple iPad EFB STC for Boeing 737 Series of Aircraft now accepted by the FAA!

The STC now includes the Mid Continent Instruments TA102 Dual USB Charging Port. This makes the installation easier and lighter. The TA102 has undergone DO160 environmental testing and for additional safety ADS performed MIL217 reliability analysis on the charger. For more information call Robert Gow @ 705-527-6095.

Dual Universal UNS-1Lw STC for ATR 42/72 Now accepted by EASA!

We now have an EASA STC for upgrading the ATR 42 and 72 Series aircraft with Dual Universal UNS-1Lw systems replacing the old Honeywell systems which are obsolete. This new installation provides SBAS approach capability fully autopilot coupled. Call for more information.

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