Parameter

4.5.1.5.2 4D trajectory and performance based navigation

4D trajectory and performance based navigation systems coordinate an aircraft's flight path in three-dimensional space and time to optimize arrival scheduling. This continuous synchronization enables aircraft to fly highly direct paths with centimeter-level accuracy, eliminating fuel waste. Challenges in implementing these systems lie in updating global air traffic control architectures to support automated multi-aircraft path negotiations.

Hierarchy

4 technological themes

4.1 active aircraft control

4.2 data transfer technologies

4.3 energy carriers

4.4 net zero technologies

4.5 operational technologies

4.5.1 on-board operations

4.5.1.1 recharging in-flight

4.5.1.2 refueling in-flight

4.5.1.3 full autonomous flight

4.5.1.4 smart catering technology

4.5.1.5 navigation & routing

4.5.1.5.1 staged flight

4.5.1.5.2 4D trajectory and performance based navigation

4.5.1.5.3 continuous descent approach

4.5.1.5.4 ISSR avoidance (warming contrails)

4.5.1.5.5 atmospheric currents exploitation

4.5.1.5.6 energy optimized climb, cruise & descent

4.5.1.5.7 formation flight

4.5.1.6 efficient payload control

4.5.1.7 single pilot cockpit

4.5.2 on-ground operations

4.6 aircraft propulsion

4.7 aircraft structures

Scenario relevance

Number of parameter occurrence per scenario.

Input

Output

2

1

Optimising together

N/A

Stripping down

N/A

Tech for you

N/A

Mad max

Milestone Timehorizon

PESTEL categories

Incoming dependencies Outgoing dependencies

Show tags

Current

Short term

Medium term

Long term

Governance & Operations

A unified global regulatory, legal, and data framework for the net-zero transition and seamless air travel.

2

Binding Global Mandate

1

Common Data Standards

2

Innovation Sandboxes

3

Collaborative Governance Blueprint

1

Ratifying The Treaty

2

Demonstrating Unified ATM

1

Establishing The Enforcer

1

Mutual Certification

2

Implementing Unified ATM

1

Collaborative Mandate Management

1

Multi-Modal Integration

2

Adaptive Governance

Environment & Economy

A self-sustaining, circular aviation market supported by established economic and industrial models.

2

Common Emissions Standard

3

Secure Initial Funding

1

Validate Scaling Paths

2

Mandate Circular Design

2

Deploy Hub Infrastructure

1

Operationalize Incentives

1

Launch Circular Supply Chains

1

Internalize Emission Costs

5

Complete Fleet Renewal

1

Secure Energy Supply

2

Achieve Full Circularity

2

Confirm Economic Viability

Technology & R&D

A fully developed, certified, and deployed ecosystem of net-zero technologies, from new propulsion to full autonomy.

3

Ground-Test Propulsion

1

Digital Twin Architecture

1

Validate Foundational AI

2

Pilot Efficiency Concepts

1

Flight-Prove Propulsion

1

Deploy Gen 1.0 Digital Twin

2

Certify Reduced Crew

3

Certify All Aircraft

1

Implement Autonomous Cargo

1

Implement Autonomous ATM

2

Optimize With Digital Twin

2

Launch Gen 2.0 R&D

Society & Human Capital

A fair, equitable, and human-centric transition that ensures public trust and a fully integrated future workforce.

0

Analyze Skills Gap

0

Build Social License

0

Ratify Just Transition

2

Launch Reskilling Programs

0

Define Equity Standards

2

Demonstrate Just Transition

1

Ensure Remote Access

1

Build Trust In Autonomy

1

Permanent Transition Monitoring

2

Verify Universal Access

2

Achieve Full Public Trust

1

Integrate New Workforce

Little to many relations with other Milestones