Are motherships allowed for "grand tour" contracts?

[SlamduncAZ]

Quick question, for "grand tour" contracts (contracts that require you to flyby or land on multiple planets or moons using 1 vessel), are you allowed to use Apollo-style motherships, where the transfer stage stays in orbit, and the lander separates, lands, and returns to it in orbit (assuming both the lander and transfer stage were both launched in the same launch). Can I do this, or will it invalidate the contract?

If so, it will make what I'm soon going to do a whole lot easier.

If not, I have to figure out how to get a 100+ ton payload to the surface of Eve, back into orbit, and then to multiple other destinations.

[InfernoSD]

Yes. You just can't discard the relevant parts of the vessel. The orbiter by itself will not retain credit for going there. That credit is retained within the lander. It would probably be sufficient if the only thing you retained from your lander is the probe or command pod.

[Superfluous J]

Basically when you finish the grand tour, you must have a part on the ship that has done each of the things.

This can be one part that did everything, or multiple parts that each did a single thing, or anything in between.

You can verify each step is successful in the contract widget while in flight. No check = no credit.