Systems and methods to interject stored downlink messages over non-stored ACARS over internet protocol downlink messages

A system comprising:

• a communications management system (CMS) coupled to a vehicle;
• and
• an Aircraft Communications Addressing and Reporting System (ACARS) over Internet Protocol (AoIP) gateway server communicatively coupled to the CMS, wherein the AoIP gateway server includes at least one processor and a storage medium configured to store ACARS downlink messages,
• wherein the CMS is configured to receive or generate a first ACARS downlink message,
• wherein the AoIP gateway server is configured to forward the first ACARS downlink message to a ground system communicatively coupled to the vehicle, wherein the first ACARS downlink message is forwarded via an AoIP communication link,
• wherein the CMS is configured to receive or generate a second ACARS downlink message, wherein the second ACARS downlink message is configured for storage by the AoIP gateway server, and
• wherein the CMS is configured to send the second ACARS downlink message to the AoIP gateway server before receiving an indication from the ground system that the first ACARS downlink message has been successfully received.

A program product comprising a non-transitory processor-readable medium on which program instructions configured to be executed by at least one processor are embodied, wherein when executed by the at least one processor, the program instructions cause the at least one processor to:

• receive or generate, at a communications management system, a first ACARS downlink message;
• forward the first ACARS downlink message to a ground system communicatively coupled to a vehicle;
• wherein the first ACARS downlink message is forwarded via an AoIP communication link;
• receive, at the communications management system, a second ACARS downlink message, wherein the second ACARS downlink message is configured for storage of an AoIP gateway server;
• and
• send the second ACARS downlink message to the AoIP gateway server before receiving an indication from the ground system that the first ACARS downlink message has been successfully received.