During which type of approach is a pilot allowed to continue to fly VFR even when under visual flight rules?

The concept of "VFR on Top" is significant in aviation, as it allows pilots to operate under visual flight rules even when flying at higher altitudes within controlled airspace. This means that after climbing through the clouds or adverse weather, a pilot can maintain visual separation from other aircraft and navigate visually while still adhering to the instrument flight rules (IFR) flight plan below them.

This procedure provides flexibility for pilots when faced with overcast or thick clouds that might otherwise limit their ability to see outside the cockpit. It enables them to fly VFR above a cloud layer, while still being compliant with IFR regulations beneath the cloud layer. This is especially beneficial for pilots who prefer or require visual navigation over relying solely on instruments and are capable of handling such navigational responsibilities.

Other types of approaches mentioned do not provide for this specific scenario. For instance, a precision approach usually requires adherence to strict IFR guidelines, and both initial and final approaches are phases of an aircraft's transition to landing where IFR protocols must be strictly followed without the allowance to switch to VFR. Thus, "VFR on Top" is uniquely designed to give pilots the latitude to operate under visual rules in certain conditions, making it the correct choice.