(Found) Short Alt-history SF story

[Joe Tschai]

Maybe Medieval time period, the world is flat, with an ocean surrounding the continents. From a morse operator on an exploring sailing ship; "Angels wingtip to wingtip fill space, transmitter realizes the Angels, CW signal: continuous wingheight. Msg received from beyond the edge, " It is the Portugeuse". In the distance, The roar of Oceanus toppling into space." These are keywords from a story I would like to identify. From way' back.
Joe Tschai

 

[J-Sun]

Not sure about the details of the quotes but it sounds like Philip Jose Farmer's "Sail On! Sail On!"

 

[Joe Tschai]

Not sure about the details of the quotes but it sounds like Philip Jose Farmer's "Sail On! Sail On!"

That's it! Thanks!