An aircraft mission calculation system is for indicating a risk of loss of optimality of the trajectory actually flown by the aircraft. The system includes a first trajectory calculation module, configured to calculate an optimal mission trajectory between a geographical point of origin and a geographical point of destination. The first calculation module is configured to calculate a plurality of iso-displacement curves from the geographical point of origin to the geographical point of destination. The system comprises a module for determining a level of risk of loss of optimality of the trajectory actually taken by the aircraft, associated with a modification of the trajectory of the aircraft with respect to the calculated mission trajectory, the display manager displaying on the display, in addition to the calculated trajectory, an indicator of the determined level of risk.

Disclosed are methods, systems, and non-transitory computer-readable media for strategic route planning for vehicles in a vicinity. The methods include: accessing a shared ledger including one or more traffic and airspace rules; determining a trajectory for a vehicle using the shared ledger; comparing the determined trajectory to routes associated with vehicles within a predetermined range of the vehicle by comparing the determined trajectory to the routes stored in the shared ledger and determining whether the determined trajectory satisfies separation parameters; adjusting the trajectory based on the comparison between the determined trajectory and the routes stored in the shared ledger; comparing the adjusted trajectory to the routes stored in the shared ledger and determining whether the adjusted trajectory satisfies the one or more separation parameters; and upon determining that the adjusted trajectory satisfies the comparison, transmitting the adjusted trajectory to one or more active nodes for confirmation.

Disclosed are methods, systems, and non-transitory computer-readable media for strategic route planning for vehicles in a vicinity. The methods include: accessing a shared ledger including one or more traffic and airspace rules; determining a trajectory for a vehicle using the shared ledger; comparing the determined trajectory to routes associated with vehicles within a predetermined range of the vehicle by comparing the determined trajectory to the routes stored in the shared ledger and determining whether the determined trajectory satisfies separation parameters; adjusting the trajectory based on the comparison between the determined trajectory and the routes stored in the shared ledger; comparing the adjusted trajectory to the routes stored in the shared ledger and determining whether the adjusted trajectory satisfies the one or more separation parameters; and upon determining that the adjusted trajectory satisfies the comparison, transmitting the adjusted trajectory to one or more active nodes for confirmation.

A technique controls a subject aircraft which is a flight vehicle. In the technique, subject aircraft information is acquired as information on the subject aircraft, and counterpart aircraft information is acquired as information on a counterpart aircraft that is a flight vehicle different from the subject aircraft. A priority relationship is set according to the subject aircraft information and the counterpart aircraft information. The priority relationship indicates which of the subject aircraft and the counterpart aircraft has higher priority in performing collision avoidance flight that is flight for avoiding a collision between the subject aircraft and the counterpart aircraft.

A technique controls a subject aircraft which is a flight vehicle. In the technique, subject aircraft information is acquired as information on the subject aircraft, and counterpart aircraft information is acquired as information on a counterpart aircraft that is a flight vehicle different from the subject aircraft. A priority relationship is set according to the subject aircraft information and the counterpart aircraft information. The priority relationship indicates which of the subject aircraft and the counterpart aircraft has higher priority in performing collision avoidance flight that is flight for avoiding a collision between the subject aircraft and the counterpart aircraft.

Mobile surveillance systems (MSSs) and related techniques are provided to improve the safety and operational flexibility of unmanned aircraft systems (UASs) and unmanned aerial vehicles (UAVs). An MMS includes an extendable mast and a modular sensor cluster couplable to the extendable mast. The MSS may also include a logic device configured to determine relative and/or absolute positions of UAVs within a selected airspace monitoring volume based, at least in part, on ranging sensor data provided by the modular sensor cluster, and to generate an airspace deconfliction display view corresponding to the selected airspace monitoring volume based, at least in part, on the determined relative and/or absolute positions of the UAVs and/or the selected airspace monitoring volume.

Mobile surveillance systems (MSSs) and related techniques are provided to improve the safety and operational flexibility of unmanned aircraft systems (UASs) and unmanned aerial vehicles (UAVs). An MMS includes an extendable mast and a modular sensor cluster couplable to the extendable mast. The MSS may also include a logic device configured to determine relative and/or absolute positions of UAVs within a selected airspace monitoring volume based, at least in part, on ranging sensor data provided by the modular sensor cluster, and to generate an airspace deconfliction display view corresponding to the selected airspace monitoring volume based, at least in part, on the determined relative and/or absolute positions of the UAVs and/or the selected airspace monitoring volume.

The present invention relates to a method of assisting in the checking of at least one flight plan among at least a first flight plan and a second flight plan, each flight plan being associated with an ordered list of elements. The method comprises the steps of comparing flight plans in order to identify among the elements associated with said plans, common elements for all the plans and distinctive elements for each flight plan, and to display, a first comparative zone comprising a tree structure defining a plurality of levels, each level comprising a single root formed from one of the common elements or a branch for each flight plan, at least one of the branches in a same level comprising at least one of the distinctive elements associated with the corresponding flight plan.

The present invention relates to a method of assisting in the checking of at least one flight plan among at least a first flight plan and a second flight plan, each flight plan being associated with an ordered list of elements. The method comprises the steps of comparing flight plans in order to identify among the elements associated with said plans, common elements for all the plans and distinctive elements for each flight plan, and to display, a first comparative zone comprising a tree structure defining a plurality of levels, each level comprising a single root formed from one of the common elements or a branch for each flight plan, at least one of the branches in a same level comprising at least one of the distinctive elements associated with the corresponding flight plan.

A method of generating an estimated initial mass of an aircraft includes obtaining a first sequence of instructions indicating aircraft intent for a particular phase of a flight. The first sequence of instructions includes multiple sequential tabular instructions for a set of segments of the particular phase, and operation of the aircraft according to the first sequence of instructions would result in a particular altitude profile during the particular phase. The method includes determining, using a bounded optimization operation, a first estimated mass of the aircraft and a throttle law instruction that, together, result in the particular altitude profile over a group of the segments. The method includes generating a second sequence of instructions that replaces the tabular instructions for the group of the segments with the throttle law instruction. The method also includes determining the estimated initial mass at least partially based on the first estimated mass.