Parameter

4.6.1.1.1 slipper-mount over-wing nacelle

is an aircraft engine installation where the engine nacelle is mounted directly on top of the wing in a “slipper” (pylon-less) configuration, sliding or bonded along the upper wing surface, and often configured to blow exhaust or jet flow over the wing to generate additional lift.
This configuration can reduce ground-clearance issues, ease integration of high-bypass engines, and provide noise shielding because the wing blocks fan and jet noise from the ground.

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

4.6 aircraft propulsion

4.6.1 propulsor integration on airframe

4.6.1.1 over-wing propulsors

4.6.1.1.1 slipper-mount over-wing nacelle

4.6.1.2 forward fuselage mounted fans

4.6.1.3 tail cone thruster (e.g. starc-abl)

4.6.1.4 boundary layer ingestion rear end installation

4.6.1.5 in-wing distributed propulsion

4.6.1.6 retrofitting new propulsion systems

4.6.1.7 propulsive fuselage

4.6.2 converting shaft power to thrust

4.6.3 converting fuel to shaft power

4.6.4 non-combustion based engine integration

4.6.5 other propulsion technologies

4.7 aircraft structures

Scenario relevance

Number of parameter occurrence per scenario.

Input

Output

1

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