Aircraft Launch Frame With Pitch-Yaw Response for Crosswind Alignment
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Solution Overview
Problem
Existing ground vehicle-based launching systems for lightweight aircraft, such as UAVs, often fix the aircraft's position, leading to significant crosswind challenges and the need for sudden directional changes during launch, which can be detrimental to the UAV's stability and control.
Innovation Solution
A ground vehicle-based launching system that automatically adjusts aircraft pitch and yaw, using a latch mechanism and yaw dampening mechanism to allow the aircraft to freely pitch and yaw based on prevailing winds, ensuring a smooth transition to takeoff.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the aircraft position is fixed on the ground vehicle, then the launching system structure is simplified, but the aircraft is subjected to significant crosswinds and cannot align with headwind direction
Solution Approach 1:
The patent implements a dynamic positioning system where the aircraft can freely pivot and adjust its orientation on the ground vehicle. The support frame allows rotational movement, enabling the aircraft to dynamically align with wind direction during launch, converting the static fixed-position system into a dynamic adaptive system that responds to environmental conditions.
2Object-affected harmful factors
If the aircraft is allowed to freely pitch and yaw, then crosswind alignment is improved, but the control and stability during launch deteriorates
Solution Approach 1:
The patent employs active control systems that continuously monitor and adjust aircraft pitch and yaw parameters during the launch sequence. By dynamically changing orientation parameters in response to wind conditions while maintaining controlled transition, the system achieves both crosswind alignment and launch stability.
3Reliability
If automatic pitch and yaw adjustment is implemented, then launch reliability is improved, but the device complexity increases
Solution Approach 1:
The patent implements self-adjusting mechanisms where the aircraft's own aerodynamic surfaces and control systems automatically respond to wind conditions during launch. The system uses feedback from wind sensors and automated control algorithms that adjust pitch and yaw without requiring external operator intervention, making the system self-regulating and reducing the need for complex external control infrastructure.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system enhances launch reliability and stability by allowing the aircraft to align with the wind direction, reducing crosswind impacts and enabling a smooth, controlled takeoff with minimal operator interaction.
Implementation Method 1
allows the aircraft to move in the pitch and yaw directions while the aircraft is held in the frame and as the aircraft is towed during launch, thus letting it move in similar fashion to a weathervane and face directly into the wind
Implementation Method 2
a yaw dampening mechanism is provided and configured to reduce the yaw rate when desired
Data Source
AI summary
A stacked panel tube bundle for an air cooled steam condenser having two sets of condensing tubes, one set arranged above the other, the first (lower) set of tubes in direct fluid communication with a combined steam delivery/condensate collection manifold at a bottom end and in indirect fluid communication with a non-condensable collection manifold via an L-shaped extension member; the second (upper) set of tubes in direct fluid communication with the non-condensable collection manifold at the top, and in indirect fluid communication with the combined steam delivery/condensate collection manifold via an L-shaped extension member.