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151. The Arado Ar 234 V6 (Wn.Nr. 130006; "GK+IW") first flew on 25 April 1944 using four BMW 003 A-0 turbojets in four separated nacelles. Ubbo Janssen reported that he was constantly throttling to control the engines and that they could not be restarted in flight, Pawlas, p. 110.
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152. As one of its innovations, the V6 had radio telemetry of each exhaust temperature, Pawlas, p. 122.
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153. Problems with the V6 included inconsistent fuel flows to the engines and swings in the centre of gravity due to uneven emptying of the fuel tanks. At 7000 m. the Henschel pumps could only inject enough fuel for idling and the aircraft became uncontrollable and went into a spin on 30 May 1944, Pawlas, p. 166.
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154. The final straw for Ubbo Janssen came on 1 June 1944. After about ten minutes, all four engines cut out at 500 m. over a wide forest. He managed to relight number two and, losing height, made a quick
notlandung in the first open field he saw. In his report of 14 June, he summed it up:
"
Abschliessend ist zu sagen, das die BMW-Triebwerke in dieser Form nicht erprobungs reif sind. Das Risiko ist untragbar Geworden, Pawlas, p. 154. Neither the V6 nor the V8 flew again. However it had been concluded that the paired configuration was superior.