content_image/557617.jpg content_image/557616.jpg
<img src='content_image/557617.jpg'>

weight to hover OGE is approximately 1,130 pounds (point C). Since your gross weight is higher than this value, you will not be able to hover in these conditions. To accomplish the mission, you will need to remove approximately 70 pounds before you begin the flight. 

These two sample problems emphasize the importance of determining the gross weight and hover ceiling throughout the entire flight operation. Being able to hover at the takeoff location with a specific gross weight does not ensure the same performance at the landing point. If the destination point is at a higher density altitude because of higher elevation, temperature, and/or relative humidity, more power is required to hover there. You should be able to predict whether hovering power will be available at the destination by knowing the temperature and wind conditions, using the performance charts in the helicopter flight manual, and making certain power checks during hover and in flight prior to commencing the approach and landing. 

For helicopters with dual engines, performance charts provide 

<img src='content_image/557616.jpg'>

torque amounts for both engines. 

## Sample Hover Problem 3 

Using Figure 7-6 , determine what torque is required to hover. Use the following conditions: 

A. Pressure Altitude . . . . . . . . . . . . . . . . . . . ..9,500 feet 

B. Outside Air Temperature ............... . . . 0 °C 

C. Gross Weight. . . . . . . . . . . . . . . . . . . . . . . . . 4,250 lb 

D. Desired Skid Height . . . . . . . . . . . . . . . . . . . . . . 5 feet 

First, enter the chart at 9,500 feet pressure altitude, then move right to outside air temperature, 0 °C. From that point, move down to 4,250 pounds gross weight and then move left to 5-foot skid height. Drop down to read 66 percent torque required to hover. 

## Climb Performance 

