div class=trans-pagebutton class=gotoPage data-page=1Page 1button div class=trans-imageimg data-url=documenteric-w-sponberg-a-naval-architect-used-to-build-fiberglass-boats-in-masts-ithtmlpage=1 data-page=1 class=trans-thumb lazyload alt=Page 1: Eric W Sponberg – Naval Architect€¦ · used to build fiberglass boats In masts it is used for circumferential or hoop strength and stiffness and as a protective layer against loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader034fdocumentsusreader034viewer20220506055fac1d32b375f308b05a35fahtml5thumbnails1jpg width=140 height=200 divdivdiv class=trans-pagebutton class=gotoPage data-page=2Page 2button div class=trans-imageimg data-url=documenteric-w-sponberg-a-naval-architect-used-to-build-fiberglass-boats-in-masts-ithtmlpage=2 data-page=2 class=trans-thumb lazyload alt=Page 2: Eric W Sponberg – Naval Architect€¦ · used to build fiberglass boats In masts it is used for circumferential or hoop strength and stiffness and as a protective layer against loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader034fdocumentsusreader034viewer20220506055fac1d32b375f308b05a35fahtml5thumbnails2jpg width=140 height=200 divdivdiv class=trans-pagebutton class=gotoPage data-page=3Page 3button div class=trans-imageimg data-url=documenteric-w-sponberg-a-naval-architect-used-to-build-fiberglass-boats-in-masts-ithtmlpage=3 data-page=3 class=trans-thumb lazyload alt=Page 3: Eric W Sponberg – Naval Architect€¦ · used to build fiberglass boats In masts it is used for circumferential or hoop strength and stiffness and as a protective layer against loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII=...