How are empennage airfoils chosen? - Aviation Stack Exchange
WEBFeb 20, 2018 · Static longitudinal stability criteria determine the area of the empennage - upon a disturbance in Angle of Attack, the total aircraft must generate a moment that counteracts the disturbance. Usually, wings and fuselage contribute negative stability, and the tailplane must be sized such that the stabilising moment compensates for this in all ...
Why don’t gliders use swallow tails? - Aviation Stack Exchange
WEBOct 2, 2023 · The V-tail was a trend in glider design between the late Fifties and the early Sixties. High-performance gliders like the HKS-1, the Arlington Sisu 1A $^*$, the SB-5, the Standard Austria or the Schempp-Hirth SHK had them, as well as …
What is meant by empennage height? - Aviation Stack Exchange
WEBAug 1, 2015 · The empennage height is the distance from the ground to the top of the tailfin. It determines the minimum clearance the aircraft needs to taxi under an obstruction. Share
aircraft design - Is the ATR empennage configuration considered a …
WEBHow is the ATR 42/72 empennage considered? Is it a T-Tail or a cruciform tail? From the image the elevators are placed quite high on the tail that they can be considered as a T-Tail but is it so?
Why is the empennage of some aircraft not placed on the …
WEBMar 16, 2017 · $\begingroup$ Looking at the picture, I see that the forward portion of the empennage fairing does not line up with what appears to be a joint in the skin structure. However, the joint may be off-center compared to the rivet placement. Looking at the empennage in person may reveal it to be off centerline, but …
empennage - Does the tailplane see a higher or lower airspeed …
WEBAug 28, 2021 · Usually it has to be about 5° higher as the the Wing so the critical Machnumber is higher for the Empennage. You dont wanna lose efficiency due to shock waves on the tails (tails have always to work). There are also rules for the thickness and other parameters of the Empennage. You can find some more of them here.
aircraft design - Why is the Mooney's signature tail profile …
WEBMay 14, 2016 · Starting with the M20E, the entire empennage is a single assembly which attaches to the aft fuselage via a single hinge point. Driven by a pilot controlled screw jack, the entire empennage would then rotate in the vertical plane, thus changing the AoA of the tail plane and providing longitudinal trim.
Does empennage height above the main wing matter [closed]
WEBJun 28, 2019 · The critical aspect for Vertical stab height is its rolling torque and how it affects the balance of total side slip forces on the aircraft, including wing, fuselage, landing gear, engine mounts.
How are the dimensions of the empennage determined for jetliners?
WEBDec 25, 2017 · How is the height of the vertical and span of the horizontal stabilizers determined for different turbofan aircraft like the Airbus A380 and the Boeing 747-8? What are the maximum forces (in kilog...
aerodynamics - What is the purpose of the tiny doors used by the …
WEBThe recent Oct 2021 YouTube video (The Insane Engineering of the 787 by Real Engineering) in the related question remarks: [...] tiny doors whose purpose are a mystery to me with little to no