Lubricating System

Question 1

Lubricating;

Reduce friction and help cooling
Dissipate heat
Damping
Cleaning particles
Isolation compression

Two types of system are in use
___ sump
___ sump

Answer 1

Wet
Yağ wet sumpta toplanıyor

Dry
Yağ harici bir yakıt tankında toplanıyor.

Question 2

DRY sump

Scavenge pump (atık pompası) removes oil from engine, has a greater capacity than pressure pump

Oil cooler located after scavange pump to cool oil before it returns to the tank

Answer 2

Dry sump’ta ayrı bir yağ tankı var.

Question 3

DRY SUMP - oil tank & scavange pump

WET SUMP - ///

Question 4

If the main oil filter is clogged, oil to main bearings are still assured

Because the; oil filter _ P _ S valve opens

Answer 4

Bypass

Question 5

Engine cooling
Piston engines are heated because of two main reasons:
* ınternal friction
* chemical reax inside the cylinders

If no cooling is made the overheat can cause

Answer 5

Loss of power
Excessive oil consumption
Serious engine damage
Detonation (vuruntu) - early combustion - loss of power and detonation
Pre-ignition

Question 6

Impulse coupling

Starts the engine

Provide stronger spark on top dead centre for engine starting

Impulse magneto coupling -> gives a retarded spark at starting

Question 7

Magneto

AC generator - independent of A/C electrical system - Rotating magnet - Ateşleyiciler için gerekli elektriği üretir. - Small aircraftta high tension system

Question 8

Magneto - düşük amper yüksek voltaj - which is distributed to spark plugs

Question 9

Enjeksiyonda yakıt ayrı hava ayrı , karburatörlerde ise ikisi karburatörden geliyor.

Answer 9

Carburator heat
Density drops
Fuel Enrich

Question 10

Piston Engine performance and operation:

Indicated horsepower

Friction horsepower

Cold and dry air at high pressure ++++ :)

Question 11

PERFORMANCE

The power of a multi cylinder piston engine depends on 4 factors

1.mass of fuel air mixture in Air density
2.compression of the mixture (high in DE)
3. # of power strokes per min (RPM)
4. Number of the cylinders

Question 12

Density altitude DA = pressure altitude (PA) + 120x (ISA dev)

Answer 12

Sıcak havalarda density altitude çok yüksek
Density altitude artarsa performansım kötü etkilenmiş olur.

Tip eğitimi ve sonrasında en çok konuşacağımız konu performans ve özellikle density altitude.

Question 13

ISA Deviation

Answer 13

-2C for every 1000ft

15C at MSL

Question 14

Piston Engine Performance
Supercharger
Turbocharger

Answer 14

Supercharger motorla bağlantısı var mekanik, ancak turbocharger motorla mekanik bağlantısı yok.