Any good source for scale drawings?

Modeling Subjects Space
1

I would really like to scratchbuilt a spacecraft like the old Pionner 10 or 11 or maybe Voyager 1. Do you guys know where I could have descent blueprints or scale drawings of some sort?

Thanks

2

Another option might be to download the “paper” model of Pioneer 10 from the NASA site http://solarsystem.nasa.gov/kids/papermodels.cfm and use the “parts” as templates for making it in plastic.