Difference between revisions of "Enstrom 280C/Weight and Balance"
(Created page with "<span class=sa-section>SECTION 5. WEIGHT AND BALANCE</span> === WEIGHT AND CG LIMITS === The weight and CG limits for this aircraft are: {| class=wikitable |Max Gross Weight...") |
(→WEIGHT AND CG LIMITS) |
||
| (5 intermediate revisions by the same user not shown) | |||
| Line 5: | Line 5: | ||
The weight and CG limits for this aircraft are: | The weight and CG limits for this aircraft are: | ||
{| class=wikitable | {| class=wikitable | ||
| − | |Max Gross Weight:|| | + | |Max Gross Weight:|| 2600 lb |
|- | |- | ||
| − | |Max Forward CG:|| | + | |Max Forward CG:|| 103 inches |
|- | |- | ||
| − | |Max Aft CG:|| | + | |Max Aft CG:|| 116 inches |
|} | |} | ||
| Line 17: | Line 17: | ||
{| class=wikitable | {| class=wikitable | ||
| − | |Empty Weight: || | + | |Empty Weight: ||1570 lbs |
|- | |- | ||
| − | |Empty Aircraft CG: || | + | |Empty Aircraft CG: ||111.6 in |
|- | |- | ||
| − | |Empty Moment: || | + | |Empty Moment: ||175212 lb-in |
|} | |} | ||
| Line 27: | Line 27: | ||
The following arm data can be used to calculate moment at each of these stations. | The following arm data can be used to calculate moment at each of these stations. | ||
{| class=wikitable | {| class=wikitable | ||
| − | |Pilot || | + | |Pilot ||79.6 in (2.04m) |
|- | |- | ||
| − | | | + | |Fuel ||124.4 in (3.19m) |
|- | |- | ||
| − | | | + | |Baggage||163.8 in (4.2m) |
| − | |||
| − | |||
|} | |} | ||
| Line 41: | Line 39: | ||
Total weight is calculated by adding total weight of empty aircraft, fuel, passengers and baggage. Fuel weight can be calculated assuming 6 pounds per gallon of fuel. The CG is obtained by dividing total moment by total weight. Moment at each station is obtained by multiplying the arm of that station by the weight at that station. Total moment is obtained by adding moment for each station and the moment for the empty aircraft. | Total weight is calculated by adding total weight of empty aircraft, fuel, passengers and baggage. Fuel weight can be calculated assuming 6 pounds per gallon of fuel. The CG is obtained by dividing total moment by total weight. Moment at each station is obtained by multiplying the arm of that station by the weight at that station. Total moment is obtained by adding moment for each station and the moment for the empty aircraft. | ||
| − | As an example, consider a 180 lb pilot, a 160 lb passenger and | + | As an example, consider a 180 lb pilot, a 160 lb passenger and 25 gallons of fuel. Weight of the fuel will be 25*6=150 lb. |
| + | |||
{| class=wikitable | {| class=wikitable | ||
| Line 49: | Line 48: | ||
!Moment | !Moment | ||
|- | |- | ||
| − | |Aircraft ||1824|| | + | |Aircraft ||1824 ||111.6 ||203,558.4 |
| − | |||
| − | |||
|- | |- | ||
| − | | | + | |Pilot ||180 ||79.6 ||14,328 |
|- | |- | ||
| − | | | + | |Co-Pilot ||160 ||79.6 ||12,736 |
|- | |- | ||
| − | |Fuel || | + | |Fuel ||150 ||124.4 ||18,660 |
|- | |- | ||
| − | |Total || | + | |Total ||2170 ||x ||249,282 |
|} | |} | ||
| − | The final CG is calculated by dividing the total moment | + | The final CG is calculated by dividing the total moment 249,282 by the total weight 2170 yielding 114.8 inches. Cross checking the total weight and CG with the weight/CG limits indicates the aircraft is within limits. The "CG" is also calculated and displayed on the main menu for convenience. |
Latest revision as of 04:25, 31 July 2021
SECTION 5. WEIGHT AND BALANCE
1 WEIGHT AND CG LIMITS
The weight and CG limits for this aircraft are:
| Max Gross Weight: | 2600 lb |
| Max Forward CG: | 103 inches |
| Max Aft CG: | 116 inches |
2 EMPTY WEIGHT AND CG
The empty weight and CG of this aircraft are:
| Empty Weight: | 1570 lbs |
| Empty Aircraft CG: | 111.6 in |
| Empty Moment: | 175212 lb-in |
3 CG ARM DATA
The following arm data can be used to calculate moment at each of these stations.
| Pilot | 79.6 in (2.04m) |
| Fuel | 124.4 in (3.19m) |
| Baggage | 163.8 in (4.2m) |
4 WEIGHT AND CG CALCULATION
Total weight is calculated by adding total weight of empty aircraft, fuel, passengers and baggage. Fuel weight can be calculated assuming 6 pounds per gallon of fuel. The CG is obtained by dividing total moment by total weight. Moment at each station is obtained by multiplying the arm of that station by the weight at that station. Total moment is obtained by adding moment for each station and the moment for the empty aircraft.
As an example, consider a 180 lb pilot, a 160 lb passenger and 25 gallons of fuel. Weight of the fuel will be 25*6=150 lb.
| Item | Weight | Arm | Moment |
|---|---|---|---|
| Aircraft | 1824 | 111.6 | 203,558.4 |
| Pilot | 180 | 79.6 | 14,328 |
| Co-Pilot | 160 | 79.6 | 12,736 |
| Fuel | 150 | 124.4 | 18,660 |
| Total | 2170 | x | 249,282 |
The final CG is calculated by dividing the total moment 249,282 by the total weight 2170 yielding 114.8 inches. Cross checking the total weight and CG with the weight/CG limits indicates the aircraft is within limits. The "CG" is also calculated and displayed on the main menu for convenience.
