We thank Steve Weaver, Mike Kapel, and John Polander of the 88th Weather Squadron at Wright–Patterson AFB who provided radiosondes and balloons and assisted in radiosonde launches. We also appreciate the assistance of Wright–Patterson Air Force Base Air Traffic Control personnel. Thanks also to the anonymous reviewer who suggested numerous improvements, and to Ulrich Schumann who provided many helpful comments and suggested the low-bypass propulsion efficiencies in Table 2.
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