Thank you both
@PhR @flateric .
It escaped me. I was looking for Marquardt ramjet P-51 when this beauty jumped to my eyes. I knew about Jackie Cochran modification (as mentioned somewhere anteriorly in one P-51 thread). At least, I should have known better but got confused and couldn´t resist anyway
In complement to your excellent links, here is a page dedicated to Jackie (
Beguine is treated mid page):
And to amend my mistake, here is another illustration of the definitively non-supersonic Ramjet Mustang (twin Marquardt engines that might have been a blast to fly with asymmetric thrust at the wing tips (!).
P-51D, 44-63528. A Marquardt XRJ-30-MA
Appropriate tune to read the last few posts
Note that when Beguine
was converted re-using the Marquardt pods (allegedly), it´s possible that they didn´t take into account the added extra mass and inertia that came with the installation of a radiator relatively to the emptiness of a ramjets (that are essentially a hollow tube with a flame holder and a spray bar). I am willing to think that the sudden roll divergence originated from some wing warping effects instead of the explanation given in link pointing to disturbed airflow in the absence of a filet. IMOHO, the fact that this manifested mostly with abrupt roll command is a clear enough sign. It´s even probable that the Marquardt airframe was roll restricted and that information was lost to the Beguine
team.
