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<blockquote data-quote="BillM" data-source="post: 4361024" data-attributes="member: 45785"><p>Did something similar for the quick reaction 20' satellite dish I worked on. TO verification. I was considered a subject matter expert for having worked on the thing for several years, including having deployed ours to Desert Shield/Desert Storm. Little things, like mine having been used in a drop test, and not having any immediate problems show up. Until months later. <img class="smilie smilie--emoji" loading="lazy" alt="😪" title="😪" src="https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f62a.png" /> The trunnions that support most of the dishes weight started cracking. Got replaced. Cracked again. Several times. Thing was a 1/2" thick aluminum casting. Eventually suggested they remake them out of steel. That alone would more than double the breaking strength. They kept telling us that was impossible. Started having the same problems with other antennae. There were lots of them, and all used a 10-ton jack screw to raise and lower the dish. Then they actually did it. When I retired in '97, they hadn't had another trunnion crack.</p><p></p><p>One of the errors I pointed out during the TO verification was a drawing of the angle indicator was upside.down in the TO. They swore it was right, until I led them out to the antenna we were using, and showed them...</p><p></p><p>It was, over all, fun, and I met some cool people, learned some cool stuff. I'm not a drinker. Wasn't much of one even then. Didn't have a headache for the whole event... <img src="/images/smilies/comfort.gif" class="smilie" loading="lazy" alt=":comfort:" title="Comfort :comfort:" data-shortname=":comfort:" /></p><p></p><p>Oh! I wasn't all that fond of the F-16. I was a photographer at Nellis for 5 years. Got a lot business from the F-16's. I rewrote the lyrics to Camptown Racetrack... Nellis flightline 3 miles long, do dah, do dah, -16's crashing all day long... They were built by the same folks who inflicted the F-111D on me when I was an F-111D crew chief some years earlier.</p></blockquote><p></p>
[QUOTE="BillM, post: 4361024, member: 45785"] Did something similar for the quick reaction 20' satellite dish I worked on. TO verification. I was considered a subject matter expert for having worked on the thing for several years, including having deployed ours to Desert Shield/Desert Storm. Little things, like mine having been used in a drop test, and not having any immediate problems show up. Until months later. 😪 The trunnions that support most of the dishes weight started cracking. Got replaced. Cracked again. Several times. Thing was a 1/2" thick aluminum casting. Eventually suggested they remake them out of steel. That alone would more than double the breaking strength. They kept telling us that was impossible. Started having the same problems with other antennae. There were lots of them, and all used a 10-ton jack screw to raise and lower the dish. Then they actually did it. When I retired in '97, they hadn't had another trunnion crack. One of the errors I pointed out during the TO verification was a drawing of the angle indicator was upside.down in the TO. They swore it was right, until I led them out to the antenna we were using, and showed them... It was, over all, fun, and I met some cool people, learned some cool stuff. I'm not a drinker. Wasn't much of one even then. Didn't have a headache for the whole event... :comfort: Oh! I wasn't all that fond of the F-16. I was a photographer at Nellis for 5 years. Got a lot business from the F-16's. I rewrote the lyrics to Camptown Racetrack... Nellis flightline 3 miles long, do dah, do dah, -16's crashing all day long... They were built by the same folks who inflicted the F-111D on me when I was an F-111D crew chief some years earlier. [/QUOTE]
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