How is loiter calculated?
Given a known aircraft range and the cruise speed, equivalent loiter time can be estimated by a simple and useful rule of thumb: Loiter time equals range divided by cruise velocity, increased 14%. Despite different derivations, this approximation can be used for both jets and propeller aircraft.
What is aircraft loiter time?
Loiter-time meaning The length of time a military aircraft can remain over a target, taking fuel endurance into account.
How is aircraft speed calculated?
The knot is the standard unit for measuring the speed of an aircraft and it is equal to one nautical mile per hour. It is defined as follows in SI: 1 international knot = 1 nautical mile per hour = 1.852 km/hr exactly = 1.151 miles/hr approx. = 0.514 m/sec approx.
What is loiter speed?
The pilot can control the copter’s position with the control sticks. Horizontal location can be adjusted with the the Roll and Pitch control sticks with the default maximum horizontal speed being 5m/s (see Tuning section below on how to adjust this). When the pilot releases the sticks the copter will slow to a stop.
What is Max endurance speed?
Generally, in subsonic performance, the speed at which maximum endurance is obtained is approximately 75 percent of the speed for maximum range. If you are holding at maximum endurance and are released to your destination, what speed do you fly to use the least amount of fuel? That would be the speed for maximum range.
How can I calculate the optimum loiter velocity?
To do a constraint analysis as well as to find the fuel fraction for loiter phase I need to calculate the optimum loiter velocity for a loiter time of 60 minutes at 7000ft. Breguet’s range equation doesn’t help since I don’t know the fuel fraction of loiter phase.
When does a plane go into loiter mode?
If, during gliding flight, the air is estimated to be rising at more than SOAR_VSPEED and the RC switch position allows it, the aircraft will automatically enter LOITER mode. While in LOITER mode the aircraft will adjust the loiter position to better centre the thermal.
Is there a minimum speed for a loiter?
Several certification regulations enforce a minimum loiter speed that is 1.3 times the stall speed. Remember that there’s a trade off between max speed and loiter speed. Thanks for contributing an answer to Aviation Stack Exchange!
How do you calculate the optimum cruise speed?
The optimum cruise speed is the speed at which fuel consumption is minimized per unit of velocity. So, you need to compute the derivative (C/v)’ where C is rate of fuel consumption and v is rate of travel (airspeed). (I assume you want this by “loiter”.