1805 george avenue annapolis, maryland 21401 usa © 2017 chesapeake light craft, llc all rights reserved. reproduction in whole or in part without written permission. Spira international wooden boat plans. following are the stock plans available for the various types of boats, separated into the different categories.. All power boats 16′ long and under. tech support. the best technical support: we will help you succeed! all our plans and kits come with full technical support..