div class=trans-pagebutton class=gotoPage data-page=1Page 1button div class=trans-imagea href=https:reader042fdocumentsinreader042viewer20220307185b02e0817f8b9a89208b6654html5page1jpg target=_blank img data-url=documentvacpump-aopa-sigma-tec-pump-drive-is-airbornethe-vanes-run-dry-on-alu-htmlpage=1 data-page=1 class=trans-thumb lazyload alt=Page 1: vacpump - AOPA · The Sigma Tec pump drive is Airborne—the vanes run dry on alu- minum housing walls to watch for during any engine spray- loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader042fdocumentsinreader042viewer20220307185b02e0817f8b9a89208b6654html5thumbnails1jpg width=140 height=200 adivdivdiv class=trans-pagebutton class=gotoPage data-page=2Page 2button div class=trans-imagea href=https:reader042fdocumentsinreader042viewer20220307185b02e0817f8b9a89208b6654html5page2jpg target=_blank img data-url=documentvacpump-aopa-sigma-tec-pump-drive-is-airbornethe-vanes-run-dry-on-alu-htmlpage=2 data-page=2 class=trans-thumb lazyload alt=Page 2: vacpump - AOPA · The Sigma Tec pump drive is Airborne—the vanes run dry on alu- minum housing walls to watch for during any engine spray- loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader042fdocumentsinreader042viewer20220307185b02e0817f8b9a89208b6654html5thumbnails2jpg width=140 height=200 adivdivdiv class=trans-pagebutton class=gotoPage data-page=3Page 3button div class=trans-imagea href=https:reader042fdocumentsinreader042viewer20220307185b02e0817f8b9a89208b6654html5page3jpg target=_blank img data-url=documentvacpump-aopa-sigma-tec-pump-drive-is-airbornethe-vanes-run-dry-on-alu-htmlpage=3 data-page=3 class=trans-thumb lazyload alt=Page 3: vacpump - AOPA · The Sigma Tec pump drive is Airborne—the vanes run dry on alu- minum housing walls to watch for during any engine...