Como interpretar o 14 CFR Part 61 Requisitos 61.129 no tempo de treinamento do instrumento?

Para a parte (3)

(i) - Ten hours of instrument training using a view-limiting device including attitude instrument flying, partial panel skills, recovery from unusual flight attitudes, and intercepting and tracking navigational systems. Five hours of the 10 hours required on instrument training must be in a single engine airplane;

Pode este tempo ser o tempo do instrumento anterior, ou tem que ser específico para o certificado comercial?

A mesma coisa com a decolagem noturna e aterrissagens em um aeroporto imponente.

(4)(ii) 5 hours in night VFR conditions with 10 takeoffs and 10 landings (with each landing involving a flight in the traffic pattern) at an airport with an operating control tower.