著者
山名 正夫
出版者
一般社団法人 日本航空宇宙学会
雑誌
日本航空学会誌 (ISSN:00214663)
巻号頁・発行日
vol.2, no.6, pp.108-112, 1954-03-31 (Released:2009-07-09)
参考文献数
3

Some of the wartime Japanese navy planes at their experimental stages were easily brought into accidental (or unintentional) autorotation in acrobatic flight such as vertical turn or loop. The analytical studies, refining procedures taken against these defects and design precautions are described here.When the wing is liable to stall at its tip or at the approximate middle portion between tip and root, and when the directional stability is not sufficient under large incidence angles, the accidental autorotation will happen due to small side slip angle ψ or angular velocity r around Z axis caused by a slight and unavoidable incoordination of control. The procedures are indicated in Fig. 5.Consequently it is summarized: that the stall of main wing should grow gradually outward from root and forward from trailing edge as indicated in the right half of Fig. 6 (a), that the value of ∂Cn/∂ψ should not decrease even under large incidence angles.
著者
上山 和夫 安部 正 杉木 勝昌 岡 雄生
出版者
一般社団法人 日本航空宇宙学会
雑誌
日本航空宇宙学会誌 (ISSN:00214663)
巻号頁・発行日
vol.22, no.247, pp.405-408, 1974 (Released:2009-05-25)

A unique device, named "dihedral effect adjusting fin" is introduced in the development of Mitsubishi twin-turboprop business plane, MU-2G. This device, a fin attached to the wing tip tank, causes a modification of interference effect of wing tip tank with the main wing, and facilitates the adjustment with assurance of dihedral effect of an airplane with wing tip tank.In this note, the idea of dihedral effect adjusting fin and its application to the development of MU-2G plane are reviewed.
著者
原田 正範 別府 護郎 東 昭
出版者
一般社団法人 日本航空宇宙学会
雑誌
日本航空宇宙学会誌 (ISSN:00214663)
巻号頁・発行日
vol.44, no.513, pp.582-587, 1996-10-05 (Released:2010-12-16)
参考文献数
9

By using of the optimal control theory, the optimal controls of the lift coefficient and the related flight paths of gliders are obtained to find the maximum flight range for given initial and final conditions. The results show that without ground effect the steady gliding flight at the maximum lift-to-drag ratio occupies a greater part of the flight path, but with the ground effect, the unsteady horizontal flight at the minimum allowable height takes the place of the steady gliding flight.

5 0 0 0 OA 寄書

出版者
一般社団法人 日本航空宇宙学会
雑誌
日本航空宇宙学会誌 (ISSN:00214663)
巻号頁・発行日
vol.30, no.347, pp.698-714, 1982-12-05 (Released:2009-05-25)
参考文献数
5