Black Cross Volume 2: Junkers 288/388/488 by Karl-Heinz Regnat

By Karl-Heinz Regnat

The JU288 used to be a medium bomber which first flew in June 1941. It got here out of the Luftwaffe's greatest improvement application of the battle. This was once referred to as Bomber B and was once organize to supply a brand new strategic bomber. a number of editions of the JU288 supplying various speeds, levels and bomb quite a bit have been envisaged, yet basically 22 airplane have been produced. the improvement venture which led to the JU388 begun in September 1943. This was once to be a multi-purpose style that may be used as a bomber, an evening fighter or a reconnaissance airplane. The evening fighter version had particular radar antennae at the nostril. the ultimate sort tested within the booklet, the JU488, used to be first proposed in early 1944. This used to be for a four-engined heavy bomber. on the way to speed up the advance application, elements from the JU88, 188 and 288 have been utilized in its building. prototypes have been assembled in France yet have been destroyed by means of the French resistance sooner than they can be shipped to Germany for overview resulting in the abandonment of this system in November 1944.

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Additional resources for Black Cross Volume 2: Junkers 288/388/488

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Flo\y). Idealizatioll of Ihe procpss ('onsists in assuming tho :\Iach number to equal zero within this rpgion of speeds because small disturbancps (SOlllld oscillations) propagatp ill c\]l incompressihle l1llic! at an inlinitely high spope! ane!. conspqupntly, the ratio of the f1ight speec! to that of sOllne! tOllds to zero. Modern craft hayp high airspeeds at which flow O\'PI' them is attended by a considerahle changp in the rrpSSllre and. cOllseql1elltly. by a substantial change in thp densit~, all(1 temperature.

1. Basic Information from Aerodynamics 57 The values of c yo are usually very small even for asymmetric configurations (at low 6e and a) and equal zero exactly for craft with axial symmetry. 6 » Static Lateral Stability To analyse the lateral stability of a craft, one must consider jointly the nature of the change in the rolling and sideslip angles upon thesimultaneous action of the perturbing rolling j1:y and yawing Mit moments. If after the stopping of sllch action these angles diminish, tending to their initial values, we have static lateral stability.

The position of a craft relative to this coordinate system is determined by three angles: the yawing (course) angle ~J, the pitching angle &, and the rolling (banking) angle "(. The angle ~ is formed by the projection of the longitudinal body axis Ox onto the horizontal plane x~Oy~ (Ox *) and the axis Ox~; this angle is positive if the axis Ox~ coincides with the projection of Ox* by clockwise rotation about the axis Oy~. The angle & is that between the axis Ox and the horizontal plane x~Oz; and will be positive if this plane is below the longitudinal -------- - - - - - -..

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