Why Is Delta Wing Design Not Used in Passenger Airplanes?

Of planes; wings, engines, landing gear, fuselages and tails shows various differences.

Alright Why is the delta wing design not preferred in passenger aircraft?

Wings on airplanes; It can be flat, triangular, inclined forward or backward.

In addition, the shape, size and position of the wings on the body, Significantly affects the speed, stability, lift and maneuverability of aircraft. For example, straight wings are advantageous in terms of creating high lift force at low speed.

However, this type of wing is not suitable for aircraft moving at high speed. Because in straight wings, the direction of air flow is Since it is perpendicular to the wing, the friction force created by the air is high.

Nowadays, aircraft moving at high speeds generally use backward-swept wings. The air friction created in this type of wing is low. This allows planes to move at higher speeds.

However, in aircraft with backward-swept wings, flight at low speeds is not stable.

In this design, how far the wing is tilted backwards significantly affects the characteristics of the aircraft. On the other hand In commercial passenger aircraft, the wing pitch is balanced.

In this way, air friction is low and flight is stable at low speeds. Wings that curve significantly backwards It is largely used in warplanes.

Since flight is not stable at low speeds in this wing design, Fighter planes move at high speed when taking off and descending.

The delta wing design is essentially an evolution of backward-swept wings.

When looking at the wings from above, a triangle shape is seen at the rear of the aircraft. Generally, in aircraft moving faster than sound, For example, it is preferred in warplanes.

The sound wave that occurs when the speed of sound is exceeded causes the friction force acting on the wings to increase significantly. The reason why delta wings are generally preferred in aircraft that can move faster than sound is They are less affected by the increase in air friction due to the sound barrier that occurs when the aircraft is at the speed of sound.

The delta wing has been used in Concorde and Tupolev Tu-144 passenger aircraft that have been in commercial service to date. However, there is no supersonic (moving faster than sound) passenger aircraft in service today.

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