UH-72 Weight and Balance Flashcards
An increase in weight will ___________ the hover performance of the helicopter.
Decrease
Overloading an aircraft may result in reduced engine and airframe life or cause______ [1] _______ [2].
Structural
Damage
Basic Helicopter + Required Standard Equipment + Optional Equipment + Unusable Fuel + Full Operating Fluids (including transmission, gearbox and engine oils, hydraulic fluid and rotor brake oil)
This is the weight of the helicopterwhen it is delivered from the factory, or weighed for record.
Basic Weight
Basic Weight + Aircrew + Passengers + Baggage/Cargo + Fuel =
Gross weight / or takeoff weight
Vertical planes perpendicular to, and measured along, the longitudinal axis of the helicopter. In the Army’s aircraft, this term is referred to as an “arm”
Fuselage Stations
The point about which the helicopter would balance if suspended
Center of Gravity (CG)
The extremes of movements to which the helicopter CG can travel. The loaded helicopter must remain within these limits at takeoff, throughout flight, and at landing
CG Limits
An imaginary vertical plane forward of the nose of the helicopter, from which all horizontal distances are measured for balance purposes.
Reference datum/Station 0
Basic Weight + Aircrew + Baggage/Cargo + Steward Equipment + Survival Kits + Emergency Equipment + Special Mission Fixed Equipment + all other non-expendable items not included in the aircrafts basic weight =
Operating Weight
Operating Weight + Payload (passengers and cargo) or Gross weight Minus fuel.
Zero fuel weight
What is the simplified moment (/100) for a passenger weighing 200 pounds (lbs.), seated at the fuselage station of 133.8? (round to the nearest hundreth)
267.6
Which class of aircraft are those whose weight or CG limits can “readily” be exceeded by loading arrangements normally in tactical operations, or those aircraft designed primarily for transporting troops and other passengers; therefore, a high degree of loading control is needed?
2
DD form 365-4 (AWBS Form F) must be reviewed every [1]____ days except at Ft. Rucker where it is reviewed every [2]____ days.
90
365
What is the term used when the aircraft is at its heaviest (with all its contents on board and fuel)? [a] [b]
Takeoff
Weight
The pilot’s responsibilities regarding weight and balance in accordance with AR 95-1 paragraph 5-2 (h) are; that a completed DD Form 365–4 (AWBS Form F) is aboard the aircraft to verify that the weight and center-of-gravity will remain within allowable limits __________________________________.
for the entire flight
Army Regulation (AR) ______________ governs the pilot’s responsibilities regarding weight and balance?
95-1
What is the formula for computing the CG?
Total _____ / Total ______ = ______
Moment
Weight
Center of Gravity
What is zero fuel weight? [a] [b] + payload.
Operating
Weight
Which class of aircraft are those whose weight or CG limits can “sometimes” be exceeded by loading arrangements normally in tactical operations, therefore, limited loading control is needed?
1
Specific weight limitations of an aircraft cannot be exceeded without compromising [a].
Safety
If an aircraft is not weighed within the time requirements in AR-95-1, its status changes to? [a]
X
What is the moment for a Pilot weighing 200 pounds (lbs.), seated at fuselage station (arm) 98.60?
197.2
Calculate the CG for an aircraft with a total weight of 6708.1 lbs and a total moment of 11869.77.
176.95
Per the AR 95-1, the pilot’s responsibilities regarding the DD Form 365-4 (AWBS Form F) include all BUT
recomputing the weight and balance form every 12 months
When gross weight is increased, hover performance is ______________.
Decreased
What is the formula for computing a moment?
Moment = Weight x Arm
Several completed DD Forms 365-4 (AWBS Form F) aboard the aircraft for other loads to verify the weight and center of gravity may be used. In this case, the actual loading being verified must be within the ___________of the loading shown on DD Forms 365-4 (AWBS Form F) used for verification.
Extremes
All aircraft whose weight and balance class is not stated in the operator’s manual will be considered Class ______.
2
