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Basic approach for implementing deployable canards on my LES?


Kurld

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I'm looking for some guidance here.  See the release thread for the parts I'm talking about. Basically, the Apollo LES that these parts are modeled after featured a automatically deploying pair of canards that, when extended, caused the escaping CM to re-orient itself so that the base of the CM is pointed towards prograde.

I'd like my part to model that behavior.  I suppose the first question is: is this even possible? In real-life, the re-orientation resulted when deployment of the canards moved the CoP ahead of the CoM of the escaping module. To me, this suggests that my nose-cone part needs to have some kind of aerodynamic module applied to it, one that essentially creates no drag or lift until it is deployed.

I have another vague notion about drag-cubes somehow possibly coming into play, but that they exist is about the limits of my knowledge of them.

I've updated my model in Blender so that it now has the canard bits and looks the way I want it to and created a simple animation to show the canards in the initial and deployed states. The canards are two separate sub-objects in the Blender model, children of the base nosecone.. I don't really know how to procede from here, or if this is even correct for what I am trying to do.

I have an idea to create a simple plugin to manage the timing of the various actions in the abort sequence. But if modeling the canard behavior is going to be problematic I see little point going there.

Thanks for any advice!

 

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