billbooth 10 #51 May 9, 2005 The Cypres cutter blade is a single-edged knife, designed to cut the loop in one place, at 90 degrees to the loop. The Vigil cutter blade is circular, so it does cut the loop in two places. This was done because IF a single-edged blade rotates 90 degrees, it will cut the loop lengthwise (down the middle), possibly not releasing it. I understand that this has happened in some NON-CYPRES military applications, prompting the design of a circular blade, that cannot become mis-aligned. I have NEVER heard of it happening on a Cypress. Quote Share this post Link to post Share on other sites
Hooknswoop 19 #52 May 9, 2005 That is a definate advantage. Did the cutter rotate 90-degrees while the reserve was packed? Derek Quote Share this post Link to post Share on other sites
billbooth 10 #53 May 9, 2005 I understand these military "problems" were on cutters used in cargo drops and de-reefing applications, not in AAD applications. AAD's are used so infrequently, that this kind of problem would take a long time to show up. The cutter blades could have been put in place 90 degrees out of sync, or they might have rotated upon firing. I don't know. For whatever reason, these military units asked for a cutter that this particular problem COULD NOT happen with. The company which designed and patented this improved design, provides cutters for the Vigil. Quote Share this post Link to post Share on other sites
