Amphibious aircraft with automatic balancing empennage

Abstract

The invention discloses an amphibious aircraft with an automatic balancing empennage. The amphibious aircraft comprises an aircraft body and an engine installed on the aircraft body. An air propeller is connected to an output shaft of the engine and located on the upper side of the back portion of the aircraft body, and the horizontal empennage is arranged at the portion, in slip flow generated by the air propeller, of the upper side of the back portion of the aircraft body; on one hand, the attack angle of the horizontal empennage is adjusted to offset the angle of the negative pitching moment of the engine in the take-off stage; on the other hand, the horizontal empennage serves as an adjusting sheet for the pitching balance of the aircraft in the flight process. In the take-off stage, the attack angle of the horizontal empennage is adjusted to offset the angle of the negative pitching moment of the engine; in this way, even when the aircraft is at the critical take-off speed, the engine is suddenly shut down, the pitch attitude of the aircraft cannot be changed, and the flight safety of a pilot is guaranteed accordingly. When the aircraft normally flies in the air, the horizontal empennage is adjusted to be at the proper angle and serves as the adjusting sheet for the pitching balance of the aircraft to achieve the attitude trimming function, and the flight stability of the aircraft is guaranteed.

Description

technical field [0001] The invention relates to the technical field of amphibious aircraft, in particular to an amphibious aircraft with an automatic balancing tail. Background technique [0002] Amphibious aircraft can not only take off and land on land, but also take off and land on water. This causes the amphibious aircraft to tend to nose down or up when engine thrust is increased or decreased relative to an amphibious aircraft whose engine thrust line is above the aircraft's center of gravity. If the amphibious aircraft is at the critical speed of taking off and leaving the ground, the aircraft engine suddenly shuts off, which will cause the amphibious aircraft to produce a relatively strong head-up behavior. caused by. Generally speaking, only pilots who have great driving experience and are very familiar with aircraft performance can timely and accurately control the aircraft to maintain a proper pitch attitude in the case of sudden head-up behavior. For pilots who...

AI Technical Summary

Problems solved by technology

Generally speaking, only pilots who have great driving experience and are very familiar with aircraft performance can timely and accurately control the aircraft to maintain a proper pitch attitude in the case of a sudden head-up behavior. For pilots who are not very familiar with it, the sudden upward movement of the aircraft is likely to cause the aircraft to stall and roll over or fall

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