What is jack in aircraft?
Aircraft jacks are a fundamental piece of ground support equipment used when making repairs. There are four types of hydraulic aircraft jacks — bipod, tripod, quadrupod, and axle — which each have their own benefits. However, tripod and axle jacks are by far the most common.
What is a axle jack?
Axle aircraft jacks are used for aircraft maintenance involving tire repair and replacement, brake service repair and other maintenance procedures when lifting the nose and/or main landing gear is necessary. Axle jacks are placed directly on or under aircraft landing gear.
What is tripod jack?
The Malabar Model 12314S Fixed Height Tripod Jack is a 12 ton capacity, three stage hydraulic jack designed primarily for use in aircraft maintenance.
What is metal jack plane?
A jack plane is a general-purpose woodworking bench plane, used for dressing timber down to size in preparation for truing and/or edge jointing. It is usually the first plane used on rough stock, but for rougher work it can be preceded by the scrub plane.
Are axle stands safe?
They are positioned after the vehicle has been lifted and are safest when used on flat ground. Axle stands are made from hardwearing, load-bearing metals like aluminium, steel or cast iron which will not slip, break or twist when exposed to the weight of a car.
Why do airplanes have audio jacks?
Protects Against Headphone Theft One reason commercial airplanes use two-pronged jacks is because it deters passengers from stealing their headphones. Commercial airplanes typically rent out headphones to passengers. If a passenger wants to watch a movie, for instance, he or she can rent a pair of headphones.
How much does a aircraft jack weigh?
Weight: 66 lbs. (30 kg)
Where the aircraft jacks should be placed?
The jacking points are usually placed equally around the aircraft’s center of gravity so the aircraft will be balanced when lifted on the jacks Three jacking points are usually used, one on each wing and one on the fuselage near either the tail or the nose of the aircraft.
What are two things the mechanic does before jacking an aircraft?
Before using jacks, consult your aircraft and aircraft jack manuals for specific maintenance and safety procedures.
- Familiarize Yourself With Basic Rules of Aircraft Jack Operation.
- Inspect & Test Jacks Before Every Use.
- Always Use Aircraft Jacks in a Level Position.
- Use Proper Jacking Points.
What is a FOD Walkdown?
The Annual FOD walk down is a large-scale planned activity designed to get as many people as possible at the site to meet at a predetermined time and location, then walk the entire compound and/or flightline to retrieve trash, rocks, loose metal objects, or anything else that may be or could become a FOD hazard.
What is a #5 jack plane used for?
5 Jack Plane. Jack Planes excel at a large variety of tasks, such as removing milling marks or the scallops of a scrub plane.
Is it safe to jack on rear differential?
When the tire shop guys lift a car by the differential, they’re probably being safe. Likewise, if you do the same thing from home with a good hydraulic jack, you’re probably being safe. If your vehicle manufacturer says that the differential is a recommended lifting point, then you’re definitely being safe.
Can you jack a truck up by the pumpkin?
TOM: And, in fact, that pumpkin and axle are designed to carry much more than just the weight of the truck. Since you have a pickup, chances are you’re also going to be doing what? Picking stuff up with it! RAY: So with a proper jack, the pumpkin is a perfectly acceptable jack point.
Do airlines throw away headphones?
Headphones. “Headphones are placed on your ear, not in your ear, therefore the airline can reuse them,” says Deane. Airlines usually change the foam around the earpiece for added hygiene. Fun fact—the two-socket plug airlines use for headphones are there to discourage you from taking them.
Why do airlines use two prong headphones?
What is aircraft tare weight?
Tare. Tare is the weight of chocks, blocks, stands, etc. used when weighing an airplane. Tare weight is included in the scale readings and deducted from the scale reading to obtain the actual (net) airplane weight.
How do you weigh a plane?
There are two ways to weigh an aircraft: using load cells, whereby the aircraft is lifted up, or using a weighing platform. For this weighing, the aircraft is pulled by a tow truck onto yellow platforms (see film). Each wheel has its own set of scales.
What is the purpose of wing dihedral?
The purpose of wing dihedral is to increase lateral stability. Angling an aircraft’s wings upward from the wing root to the wing tip is one way to add lateral stability. The wings forming a v-shape is called dihedral. Dihedral doesn’t affect longitudinal stability, nor does it increase coefficient of lift.