Chp2 Parking,Mooring And Picketing An AC Flashcards
(14 cards)
What is required after an aircraft has landed?
It may need to be repositioned to a more convenient location using ground handling equipment.
When is an aircraft considered parked?
An aircraft is parked when all movement equipment has been removed and the rotor brake is set to on.
What is the normal orientation for a parked aircraft?
It is normal for the aircraft to be parked facing into the wind.
What check is performed once the aircraft is parked?
A check is carried out to ensure all aircraft blanks are fitted to prevent the ingress of foreign object debris (FOD).
What can be fitted to helicopters with a free tail rotor system?
A gust lock can be fitted to the tail rotor blades to prevent them flapping in the wind.
What is mooring in aircraft handling?
Mooring is the process of locking the main rotor head hinges using control locks, placing a tip sock over the tip of each main rotor blade (MRB), and attaching rope to the tip sock.
This prevents damage to the aircraft in strong winds or adverse weather conditions.
What should be done with the mooring ropes?
The mooring ropes should be tight, but care must be taken not to pull them too tight to avoid imparting too much stress into the MRBs.
What is picketing in aircraft handling?
Picketing is a precaution taken in strong winds or when smaller aircraft are over-flown by large aircraft to prevent damage or being blown over.
What is the preferred method of parking an aircraft in strong winds?
The preferred method is to park the aircraft inside a hangar or building, although this is not always possible.
What must be done if strong winds are forecast and an aircraft has to be parked in the open?
The aircraft must be picketed.
What does picketing involve?
Picketing involves mooring the blades and securing the whole aircraft to the ground using suitable anchor/picketing points.
Why are aircraft picketed on ships?
Aircraft are usually picketed to the deck to prevent movement during rough sea conditions.
What items are used when parking, mooring, and picketing the aircraft?
The following items are used:
- Aircraft blanks and covers
- Blade tip socks
- Mooring ropes
- Control locks and gust lock
- Wheel chocks (if required)
- Aircraft picketing point rings (if required)
- Ground anchors/pickets (fixed into the ground)
- Lashing ropes.
What is the general procedure for picketing the aircraft?
The general procedure is as follows:
1. Ensure the aircraft covers and blanks are fitted.
2. Install control locks and gust lock as required.
3. Position the aircraft, nose into the wind.
4. Place wheel chocks if required
5. Position the MRBs as required and apply the rotor brake
6.Moor the MRBs
7. Install the AC picketing point rings
8. Attach two lashing ropes to each picketing point and anchor to the ground
