Bloody April... Black September, Franks, Guest & Bailey, reports the following, regarding 48 Squadron's encounter with Frankl and Jasta 4 on 8 April 1917: "At 2 o'clock, 48 Squadron were taking off to fly an OP between Arras, Lens and Vitry and they were intercepted by Frankl's Jasta 4 pilots as soon as they crossed the lines. In the brief fight which followed, 48's gunners claimed two Albatros Scouts as shot down, one by Captain D M Tidmarsh/ Second Lieutenant C B Holland, the other by the combined fire from three other crews, both over Remy-Eterpigny. Frankl's Albatros, 2158/16, fell between Vitry and Sailly, breaking up as it did so." Both Albatros D.III claims are shown to be for 1400 hours, and both were OOC. It was Tidmarsh's 4th victory. Hence, I would imagine that Frankl's demise at the hands of 48 Squadron RFC is more than a "possibility," i.e., unless I hear of a more authoritative source than the
Bloody April... Black September data. Another good source of 48 Squadron history is
No. 48 Squadron, RFC/RAF by Frank W. Bailey and Paul Chamberlain,
Over The Front, Vol. 4, No. 2, Summer 1989; however, this comprehensive 48 page squadron history unfortunately does not specifically mention Frankl, although both the narrative and combat log discuss/list this particular combat.