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I am still laughing at the idea of putting a propeller under the aircraft to help it stay airborne
Almost as ridiculous as hanging the whole machine from a large propellor and leaving the wings off.
I was not going to get involved in this long and largely impossible thread, so I shall just say that if the OP really believes that propellor thrust does not vary with speed that is his/her own problem and we may as well give up trying to use engineering principles to counter his/her assertions.
But then, those who hide behind pseudonyms are bound to have to work harder to be taken seriously than those who post in their own names.