Tyler Durden napsal:

Bylo to mnohem, mnohem horší, ten motor byl Pratt and Whitney.

History of the V-21 with the radial 1938-1939

It isn't really well known, or understood why the Messerschmitt company decided to make a radial engined Bf 109, one argument is that it was designed for export, so that there wasn't other countries vying to buy the DB 601 powerplant. Another theory is that they wanted to compete with the at the time in development Focke Wulf 190, and wanted to sell Germany a fighter using the same engine.


What is known, however, is that in 1938, the V-21, used for the Development of the E-series airframe, was modified to take a BMW 139, a direct copy of the Pratt & Whitney Twin Wasp (R-1830). A new forward fuselage was made from frame no. 6 forwards, enabling the equipping of the radial engine. A new canopy was fitted, quite similar to the Me 262's canopy. The V-21 first flew in 1939, it's fate is unknown.

History of the X-0, 1940-1942

The second 109 to be equipped with a radial engine was from a modified F-1 airframe (Werknummer 5608, callsign D-ITXP), fitted with a modified fuselage similar to the V-21 when it was equipped with the BMW 139 (again, a Pratt and Whitney 1830 clone). The airframe was modified differently, though, having a wider cross-secton, a canopy similar, if not identical to the V-21's canopy, and wingtips akin to that of the BF-109E, instead of the F-1. This prototype first flew under the control of Flugkapitän Fritz Wendel, on September 2, 1940. The flight tests were continued despite the issues caused by the BMW 801A, and development was ended in early 1942, like the V-21, it's fate is unknown, likely scrapped, and destroyed. A sad fate for an interesting prototype.

LesniHU napsal:
Co je tohle?
https://i.pinimg.com/originals/3c/af/3b/3caf3b0887354cb6f2f59a0a31b76f1a.jpg