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## Lift to drag ratio for maximum endurance in terms of max lift to drag ratio for prop-driven aircraft Solution

STEP 0: Pre-Calculation Summary
Formula Used
Lift to Drag ratio at maximum Endurance = 0.866*Maximum Lift to Drag ratio of Aircraft
L/D(Emax) = 0.866*L/Dmax
This formula uses 1 Variables
Variables Used
Maximum Lift to Drag ratio of Aircraft- Maximum Lift to Drag ratio of Aircraft while in cruise, the ratio of lift to drag coefficient is maximum in value.
STEP 1: Convert Input(s) to Base Unit
Maximum Lift to Drag ratio of Aircraft: 30 --> No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
L/D(Emax) = 0.866*L/Dmax --> 0.866*30
Evaluating ... ...
L/D(Emax) = 25.98
STEP 3: Convert Result to Output's Unit
25.98 --> No Conversion Required
25.98 <-- Lift to Drag ratio at maximum Endurance
(Calculation completed in 00.000 seconds)

## < 10+ Aircraft Preliminary Weight Built Up Calculators

Optimum Range for Jet Aircraft in Cruising Phase
Range of aircraft = ((Velocity at maximum lift to drag ratio*Maximum Lift to Drag ratio of Aircraft)/Specific Fuel Consumption)*ln(Weight of aircraft at beginning of Cruise phase/Weight of aircraft at end of Cruise phase) Go
Optimum Range for Prop-Driven Aircraft in Cruising Phase
Range of aircraft = ((Propeller efficiency*Maximum Lift to Drag ratio of Aircraft)/Specific Fuel Consumption)*ln(Weight of aircraft at beginning of Cruise phase/Weight of aircraft at end of Cruise phase) Go
Cruise Weight Fraction for Jet Aircraft
Cruise Weight Fraction = exp((Range of aircraft*Specific Fuel Consumption*(-1))/(0.866*1.32*Velocity at maximum lift to drag ratio*Maximum Lift to Drag ratio of Aircraft)) Go
Cruise Weight Fraction for Prop-Driven Aircraft
Cruise Weight Fraction = exp((Range of aircraft*(-1)*Specific Fuel Consumption)/(Maximum Lift to Drag ratio of Aircraft*Propeller efficiency)) Go
Preliminary Take Off Weight Built-up for manned aircraft
Desired Takeoff Weight = Payload Carried+Operating Empty Weight+Fuel Weight to be Carried+Crew Weight Go
Payload Weight in terms of Takeoff Weight
Payload Carried = Desired Takeoff Weight-Operating Empty Weight-Crew Weight-Fuel Weight to be Carried Go
Crew Weight in terms of Takeoff Weight
Crew Weight = Desired Takeoff Weight-Payload Carried-Fuel Weight to be Carried-Operating Empty Weight Go
Preliminary Take off Weight Built-up for manned aircraft in terms of fuel and empty weight fraction
Desired Takeoff Weight = (Payload Carried+Crew Weight)/(1-Fuel Fraction-Empty Weight Fraction) Go
Empty Weight Fraction
Empty Weight Fraction = Operating Empty Weight/Desired Takeoff Weight Go
Fuel Fraction
Fuel Fraction = Fuel Weight to be Carried/Desired Takeoff Weight Go

### Lift to drag ratio for maximum endurance in terms of max lift to drag ratio for prop-driven aircraft Formula

Lift to Drag ratio at maximum Endurance = 0.866*Maximum Lift to Drag ratio of Aircraft
L/D(Emax) = 0.866*L/Dmax

## What do you mean by Endurance of Aircraft?

In aviation, endurance is the maximum length of time that an aircraft can spend in cruising flight. In other words, it is the amount of time an aircraft can stay in the air with one load of fuel. Endurance is different from range, which is a measure of distance flown. For example, a typical sailplane exhibits high endurance characteristics but poor range characteristics. Endurance can factor into aviation design in a number of ways. Some aircraft, require high endurance characteristics as part of their mission profile (often referred to as loiter time). Endurance plays a prime factor in finding out the fuel fraction for an aircraft. Endurance, like range, is also related to fuel efficiency; fuel-efficient aircraft will tend to exhibit good endurance characteristics.

## How to Calculate Lift to drag ratio for maximum endurance in terms of max lift to drag ratio for prop-driven aircraft?

Lift to drag ratio for maximum endurance in terms of max lift to drag ratio for prop-driven aircraft calculator uses Lift to Drag ratio at maximum Endurance = 0.866*Maximum Lift to Drag ratio of Aircraft to calculate the Lift to Drag ratio at maximum Endurance, Lift to drag ratio for maximum endurance in terms of max lift to drag ratio for prop-driven aircraft is the lift to drag ratio of a plane at which the plane can achieve maximum endurance, but it also depends upon the maximum lift to drag ratio, it theoretically values 86.6% of maximum lift to drag ratio. Lift to Drag ratio at maximum Endurance is denoted by L/D(Emax) symbol.

How to calculate Lift to drag ratio for maximum endurance in terms of max lift to drag ratio for prop-driven aircraft using this online calculator? To use this online calculator for Lift to drag ratio for maximum endurance in terms of max lift to drag ratio for prop-driven aircraft, enter Maximum Lift to Drag ratio of Aircraft (L/Dmax) and hit the calculate button. Here is how the Lift to drag ratio for maximum endurance in terms of max lift to drag ratio for prop-driven aircraft calculation can be explained with given input values -> 25.98 = 0.866*30.

### FAQ

What is Lift to drag ratio for maximum endurance in terms of max lift to drag ratio for prop-driven aircraft?
Lift to drag ratio for maximum endurance in terms of max lift to drag ratio for prop-driven aircraft is the lift to drag ratio of a plane at which the plane can achieve maximum endurance, but it also depends upon the maximum lift to drag ratio, it theoretically values 86.6% of maximum lift to drag ratio and is represented as L/D(Emax) = 0.866*L/Dmax or Lift to Drag ratio at maximum Endurance = 0.866*Maximum Lift to Drag ratio of Aircraft. Maximum Lift to Drag ratio of Aircraft while in cruise, the ratio of lift to drag coefficient is maximum in value.
How to calculate Lift to drag ratio for maximum endurance in terms of max lift to drag ratio for prop-driven aircraft?
Lift to drag ratio for maximum endurance in terms of max lift to drag ratio for prop-driven aircraft is the lift to drag ratio of a plane at which the plane can achieve maximum endurance, but it also depends upon the maximum lift to drag ratio, it theoretically values 86.6% of maximum lift to drag ratio is calculated using Lift to Drag ratio at maximum Endurance = 0.866*Maximum Lift to Drag ratio of Aircraft. To calculate Lift to drag ratio for maximum endurance in terms of max lift to drag ratio for prop-driven aircraft, you need Maximum Lift to Drag ratio of Aircraft (L/Dmax). With our tool, you need to enter the respective value for Maximum Lift to Drag ratio of Aircraft and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.
How many ways are there to calculate Lift to Drag ratio at maximum Endurance?
In this formula, Lift to Drag ratio at maximum Endurance uses Maximum Lift to Drag ratio of Aircraft. We can use 1 other way(s) to calculate the same, which is/are as follows -
• Lift to Drag ratio at maximum Endurance = (Endurance of aircraft*Velocity for Maximum Endurance*Specific Fuel Consumption)/(Propeller efficiency*ln(Weight of aircraft at beginning of Loiter phase/Weight of aircraft at end of Loiter phase)) Let Others Know