It's a sort of bilevel compromise.
The biggest engineering trick to a pack parachute is having the canopy deploy correctly once it has left the bag. This involves correct packing, layering, and sequence of layers. All of which we'd have to learn by trial and error. Employing an air driven golem actuator puts us back into the sort of engineering ground we know what we're doing in, inflating and pushing out.
Likewise, creating a parachute would require imagining all the details of how the different steps function and fit together. (This has been emphasized by Suntiger) The catching air to retard falling aspect is easy to connect to sails and cloaks, as is the best shape for them to work the way we want and having them rolled up in a bundle and then spread out when we want to use them. It's how to deploy them that gets a bit tricky to describe how we come up with the idea. Sails are reefed and then dropped using lines to keep their shape, umbrellas and tents use ribs and lanyards. We also have some knowledge of inflatable gas bags and balloons along with sausage casings and pipes. Finally, we've had experience with air sorcery, especially bursts of air that drive things through the air.
So in the interests of making things easy on our GMs (who like things to be mana powered) I felt a manually actuated (so the ferals can use it) air burst golem device to deploy the parachute from it's bag would make them more comfortable with the idea and save us all a lot of nit-picking over the details of how we invented everything.
Last edited by Timotheus
on Fri Jan 04, 2013 6:04 am, edited 1 time in total.
If I knew what I was doing I'd be dangerous.