Weight and Balance, Loading Flashcards
(25 cards)
3.1 Review all the questions pertaining to the Weight and Balance Report covered in Documents and Airworthiness (page 16).
3.2 Where do you find the standard weights of people?
The standardweishtsarefound in the TC AIM RAC 3.5.
Male: Female: child: Infant:
Summer 200lbs 155lbs 75lbs 30lbs
Winter 206lbs 171lbs 75lbs 30lbs
3.3 Where do you find the weights of fuel and oil under various temperature conditions?
Refer to TC AIM RAC 3.5.2 for complete details. They can also be found in the CFS, under General A44.
3.4 What does useful load refer to?
load which is removable: usable fuel, pilot, passengers, baggage, etc.
difference between takeoff weight and the basic empty weight.
3.5 What is the payload?
It is the load available as passengers, baggage, etc., after the weight of the pilot, crew if any, and usable fuel has been deducted from the useful load.
3.6 What is the capacity of the baggage compartment for the test aircraft?
Maximum Weight in Baggage Compartment:
Baggage Area 1 (or passenger on child’s seat) – Station 50 to 76: 120 lbs.
Baggage Area 2 – Station 76 to 94: 40 lbs.
NOTE
The maximum combined weight capacity for baggage areas 1 and 2 is 120
lbs.
3.7 What is the maximum permissible gross weight of the test aircraft for takeoff and landing?
Maximum Takeoff Weight: 1670 lbs.
Maximum Landing Weight: 1670 lbs.
3.8 What is the datum line?
suitable line selected by manufacturer for balance purpose.
I can be nose of the plane.
3.9 How do you determine the moment?
MOMENT=Weight×Arm
3.10 What does centre of gravity mean to you?
weight of an aeroplane.
resultant of the weight of all various parts
3.11 How do you calculate the centre of gravity?
dividing the total balance moment by the total weight.
For US made aircraft, it is expressed in inches forward (-) or aft (+) of the balance datum line.
3.12 What is the centre of gravity range for the test aircraft?
Center of Gravity Range:
Forward: 31.0 inches aft of datum at 1350 lbs. or less, with straight line variation to 32.65 inches
aft of datum at 1670 lbs.
Aft: 36.5 inches aft of datum at all weights.
Reference Datum: Front face of firewall.
3.13 Where is the centre of gravity normally located on the test aircraft at the basic empty weight?
Refer to the Weight and Balance Report.
3.14 Prepare a complete weight and balance for the test aircraft, one for each takeoff and landing.
3.15 Determine the position of the centre of gravity for each takeoff and landing based on the
previous question.
3.16 Is the centre of gravity within limits for each takeoff and landing?
3.17 Is the centre of gravity within limits for spins?
3.18 In which direction will the centre of gravity move as fuel is consumed?
3.19 Can you change the position of the centre of gravity by shifting your body weight?
Yes. Most POH give different arm values depending on the seat adjustment.
3.20 What measures can you take if the centre of gravity is found to be outside limits?
No matter what measure is taken (less fuel, less baggage, moving passengers, shifting seat position, etc.), the most important factor here is safety. Therefore, your answer must reflect this priority.
3.21 How will an excessive aft centre of gravity affect the aircraft?
An excessive rearward (aft) centre of gravity leads to:
a. less than usual back pressure on takeoff and landing.
b. increased risk of tail strike on takeoff and landing.
c. dangerous stall and spin characteristics (recovery may even be impossible because the pilot is running out of elevator control).
an excessive aft centre of gravity will result in a lower stall speed.
3.22 How will an excessive forward centre of gravity affect the aircraft?
An excessive forward centre of gravity would require:
a. more than usual back pressure on takeoff and landing.
b. increased risk of wheelbarrowing or even propeller strike on takeoff and landing.
In addition, an excessive forward centre of gravity will result in a higher stall speed.
3.23 With an aft centre of gravity, will the stall speed be higher or lower than normal?
The stall speed is lower with an aft centre of gravity, but the stall characteristics can be dangerous. The tail may drop instead of the nose.
3.24 With a forward centre of gravity, will the stall speed be higher or lower than normal?
The stall speed will increase with a forward centre of gravity. The nose will tend to drop more than usual at stall.
