The answer in brief is that limitations imposed by the laws of physics make it impossible for the jet of air produced by an aircraft propeller to attain the speeds needed for supersonic aircraft, let alone for rockets.
Impendulo ngokufutshane kukuba imilinganiselo ebekwa yimithetho yenzululwazi ngezinto zemvelo ezingaphiliyo yenza kube nzima kwinqwelo moya engenaphiko lakujikeleza yomoya eyavezwa ngumqhubi wenqwelo moya ukufumane isantya esifunekayo kwinqwelo moya engenamaphiko akujikelezia lamanzi ngaphezu kwesantya sesandi.