Universal Cargo Deck
Universal Cargo Deck allows to add Payload Manager for any spaceship in Orbiter.

Concept

Universal Cargo Deck - is a "phantom" ship without visual model. You can attach the cargo deck to another ship using Scenario Editor. Cargo Deck vessel is created with Payload Manager SDK. Cargo Deck translates to the carrier all cargo influences (changing of mass, the moments from engines, ets.)

Using Universal Cargo Deck you can build cargo ships and multistaging systems based on any vessels in Orbiter.

An example - the ShuttlePB as payload for Deltaglider.
Take off. The engines of ShuttlePB work like boosters.
Maximum jettison velocity is 1000 m/s. Looks like a gun shot...
...after few seconds


Universal Cargo Deck is released. Go to download location.