Support Helicopter techniques — Defence Awarding Organisation Vocationally-Related Qualification Motor Vehicle & Transport Revision
This element equips helicopter crewmen with the technical and regulatory knowledge required to support rotary-wing missions. It covers the coordination of
Topic Synopsis
This element equips helicopter crewmen with the technical and regulatory knowledge required to support rotary-wing missions. It covers the coordination of aircraft movements, compliance with international customs and medical transport regulations, safe handling of external loads, correct use of restraint systems, and the aerodynamic principles of trim to ensure stable, efficient flight operations.
Key Concepts & Core Principles
- Crew Resource Management (CRM): Effective communication, teamwork, and decision-making within the helicopter crew to ensure safety and mission success.
- Helicopter Aerodynamics: Principles of lift, thrust, drag, and weight, including autorotation and the effects of rotor systems on flight performance.
- Navigation and Mission Planning: Use of charts, GPS, and radio aids to plan routes, calculate fuel requirements, and manage airspace restrictions.
- Emergency Procedures: Actions for engine failure, hydraulic failure, fire, and ditching, including emergency checklists and crew coordination.
- Meteorology for Helicopter Operations: Understanding weather phenomena like wind shear, turbulence, and icing, and their impact on flight safety.
Exam Tips & Revision Strategies
- For trim questions, always reference the helicopter’s weight and balance manual and explain how fuel consumption, load jettison, and passenger movement affect lateral and longitudinal stability.
- When addressing customs or medical regulations, cite the relevant military or civilian aviation authority publications (e.g., JSP, ICAO) to demonstrate authoritative knowledge.
- In practical assessments of external loads, verbalise your decision-making process—why you chose a particular sling, how you verified the load’s centre of gravity, and what abort criteria you applied.
Common Misconceptions & Mistakes to Avoid
- Confusing customs regulations with security requirements, leading to incomplete documentation for international sorties.
- Misunderstanding the effect of external loads on aircraft centre of gravity, resulting in unsafe trim calculations.
- Applying restraint equipment incorrectly, such as using insufficient tension or attaching to non-designated points, risking load shift.
- Overlooking medical regulation details like temperature control for pharmaceuticals or oxygen cylinder safety during patient transport.
- Assuming trim is a fixed setting rather than continuously adjusted to maintain balanced flight under changing conditions.
Examiner Marking Points
- Award credit for demonstrating accurate interpretation of the Movements Organisation’s role in tasking, prioritisation, and deconfliction of helicopter sorties.
- Expect evidence of correctly identifying required customs documentation for cross-border flights, including cargo manifests and passenger lists.
- Credit should be given for explaining medical regulations relevant to patient transfer, including equipment stowage, infection control, and in-flight emergency procedures.
- Assess the ability to calculate and adjust centre of gravity when explaining trim, referencing load placement and fuel burn sequences.
- Look for practical application of external load techniques, such as selecting appropriate sling types and conducting pre-flight load inspections.
- Check for correct identification and application of restraint equipment, including tie-down points and load tensioning, to prevent shifting during flight.