CH650 Rivet help - Zenith Aircraft Builders and Flyers2024-03-28T18:20:29Zhttps://zenith.aero/forum/topics/ch650-rivet-help?commentId=2606393%3AComment%3A691003&feed=yes&xn_auth=noI guess if I am going to ques…tag:zenith.aero,2019-09-06:2606393:Comment:6909072019-09-06T14:17:20.630ZDan Hillhttps://zenith.aero/profile/DanHill
<p>I guess if I am going to question data I should be able to have fairly definitive data to prove or disprove my beliefs if only for my own piece of mind. I have started gathering materials for a home brew test fixture for some rivet testing which will give at least a comparison of shear strength of the different sources of Avex rivets. I will order some Zenith rivets as well as the rivets I have sourced and can include any other rivets we deem fit. I will also be able to compare the rivets in…</p>
<p>I guess if I am going to question data I should be able to have fairly definitive data to prove or disprove my beliefs if only for my own piece of mind. I have started gathering materials for a home brew test fixture for some rivet testing which will give at least a comparison of shear strength of the different sources of Avex rivets. I will order some Zenith rivets as well as the rivets I have sourced and can include any other rivets we deem fit. I will also be able to compare the rivets in there original countersunk configuration as well as the domed head we convert them to. It may also be interesting to compare the break off point of the stem of the pulled rivet.</p> Thanks Russell,
I have read…tag:zenith.aero,2019-09-06:2606393:Comment:6908262019-09-06T08:07:29.808ZJayson Wallishttps://zenith.aero/profile/JaysonWallis
<p>Thanks Russell,</p>
<p></p>
<p>I have read that. I was just hoping I could get conformation on the rivets I have purchased being acceptable.</p>
<p>Spending another few thousand $ on rivets just wasn't foreseen when I purchased this <span style="text-decoration: line-through;">mess </span> abandoned project.</p>
<p>Thanks Russell,</p>
<p></p>
<p>I have read that. I was just hoping I could get conformation on the rivets I have purchased being acceptable.</p>
<p>Spending another few thousand $ on rivets just wasn't foreseen when I purchased this <span style="text-decoration: line-through;">mess </span> abandoned project.</p> Thanks Damon,
It was a great…tag:zenith.aero,2019-09-06:2606393:Comment:6910132019-09-06T08:04:34.142ZJayson Wallishttps://zenith.aero/profile/JaysonWallis
<p>Thanks Damon,</p>
<p></p>
<p>It was a great machine to build. It does take up lots of room though.</p>
<p>I have had to build a second 20 x 40 foot shed as I keep running out of room.</p>
<p>Now I want to build my CH650... </p>
<p>Thanks Damon,</p>
<p></p>
<p>It was a great machine to build. It does take up lots of room though.</p>
<p>I have had to build a second 20 x 40 foot shed as I keep running out of room.</p>
<p>Now I want to build my CH650... </p> Thanks Earnie,
0.73kN is roug…tag:zenith.aero,2019-09-06:2606393:Comment:6908242019-09-06T08:02:54.605ZJayson Wallishttps://zenith.aero/profile/JaysonWallis
<p>Thanks Earnie,</p>
<p>0.73kN is roughly 164 lbs</p>
<p>1kN is roughly 224 lbs </p>
<p>1.5kN is roughly 337 lbs</p>
<p>Theoretically these rivets are ample, however, Theory and my life on the line ...</p>
<p>The rivets I have, have a normal head also, not countersunk ... too many differences resulted in my question.</p>
<p>Thanks.</p>
<p>Thanks Earnie,</p>
<p>0.73kN is roughly 164 lbs</p>
<p>1kN is roughly 224 lbs </p>
<p>1.5kN is roughly 337 lbs</p>
<p>Theoretically these rivets are ample, however, Theory and my life on the line ...</p>
<p>The rivets I have, have a normal head also, not countersunk ... too many differences resulted in my question.</p>
<p>Thanks.</p> I was mistaken, This was publ…tag:zenith.aero,2019-09-06:2606393:Comment:6910582019-09-06T02:21:04.843ZDan Hillhttps://zenith.aero/profile/DanHill
<p>I was mistaken, This was published in 1987, more than thirty years ago and while the content is still relevant I question the accuracy of rivets not being of the same basic quality with todays manufacturing standards.</p>
<p>I was mistaken, This was published in 1987, more than thirty years ago and while the content is still relevant I question the accuracy of rivets not being of the same basic quality with todays manufacturing standards.</p> This may or may not be true n…tag:zenith.aero,2019-09-06:2606393:Comment:6908082019-09-06T01:12:37.733ZDan Hillhttps://zenith.aero/profile/DanHill
<p>This may or may not be true now. This article was from 2004 and Zenith may still import their rivets from the UK I have no knowledge of whether they do or do not, but a lot has changed in the last 15 years. What I do know is that now when a reputable manufacturer publishes shear and tensile strengths especially for aircraft use I am comfortable they will meet those specifications if for no other reason than liability. </p>
<p>This may or may not be true now. This article was from 2004 and Zenith may still import their rivets from the UK I have no knowledge of whether they do or do not, but a lot has changed in the last 15 years. What I do know is that now when a reputable manufacturer publishes shear and tensile strengths especially for aircraft use I am comfortable they will meet those specifications if for no other reason than liability. </p> http://www.zenithair.com/imag…tag:zenith.aero,2019-09-06:2606393:Comment:6910032019-09-06T00:25:51.522ZRussell Johnsonhttps://zenith.aero/profile/RJohnson
<p><a href="http://www.zenithair.com/images/kit-data/ht-87-1.html">http://www.zenithair.com/images/kit-data/ht-87-1.html</a></p>
<p>go to the above web site, it gives a good description of why the flush type rivets are used.</p>
<p>Below is a quote from that article.</p>
<p></p>
<p><b>"Note:</b><span> It is obvious that the notch depth in the stem is directly related to the breaking load. The Avex rivets (from Textron’s Avdel division) manufactured in the state of New York and in Brazil do not…</span></p>
<p><a href="http://www.zenithair.com/images/kit-data/ht-87-1.html">http://www.zenithair.com/images/kit-data/ht-87-1.html</a></p>
<p>go to the above web site, it gives a good description of why the flush type rivets are used.</p>
<p>Below is a quote from that article.</p>
<p></p>
<p><b>"Note:</b><span> It is obvious that the notch depth in the stem is directly related to the breaking load. The Avex rivets (from Textron’s Avdel division) manufactured in the state of New York and in Brazil do not have the consistency of those manufactured in the UK and should not be used on aircraft. Zenith Aircraft imports Avex rivets from England and makes a systematic test on every lot received, thus guaranteeing the correct quality. The FAA type-certificated ZENITH CH 2000 aircraft uses these same rivets."</span></p>
<p><a href="https://storage.ning.com/topology/rest/1.0/file/get/3538148320?profile=original" target="_blank" rel="noopener"><img src="https://storage.ning.com/topology/rest/1.0/file/get/3538148320?profile=RESIZE_710x" class="align-full"/></a></p> I took a quick look at your p…tag:zenith.aero,2019-09-05:2606393:Comment:6909652019-09-05T16:15:15.423ZDamon Brantleyhttps://zenith.aero/profile/DamonBrantley
<p>I took a quick look at your photogallery. Cool to see a fellow mechmate builder here. I wish I had had the space to build 12 foot table.</p>
<p>I took a quick look at your photogallery. Cool to see a fellow mechmate builder here. I wish I had had the space to build 12 foot table.</p> Jayson,
In the 601-XL constru…tag:zenith.aero,2019-09-05:2606393:Comment:6907842019-09-05T12:39:17.890ZEarnest Fontenothttps://zenith.aero/profile/EarnestFontenot
<p>Jayson,</p>
<p>In the 601-XL construction manual (I'm building a 650 but this is the manual Zenith sent with my plans) on page 9 you will find the shear strengths for the A4 and the A5 blind rivets.<br></br>There is a "designated" shear strength (I think this is Zenith's design shear strength) and then Zenith lists their actual shear strength.<br></br>A4 - design 110 lbs., actual 130 lbs.<br></br>A5 - design 180 lbs., actual 220 lbs.<br></br>The table you show has the shear strength in kN. Do the conversion…</p>
<p>Jayson,</p>
<p>In the 601-XL construction manual (I'm building a 650 but this is the manual Zenith sent with my plans) on page 9 you will find the shear strengths for the A4 and the A5 blind rivets.<br/>There is a "designated" shear strength (I think this is Zenith's design shear strength) and then Zenith lists their actual shear strength.<br/>A4 - design 110 lbs., actual 130 lbs.<br/>A5 - design 180 lbs., actual 220 lbs.<br/>The table you show has the shear strength in kN. Do the conversion and see if the rivets you have are acceptable.</p>
<p>Earnie</p> Thanks Dan,
I appreciate the…tag:zenith.aero,2019-09-05:2606393:Comment:6908702019-09-05T12:14:43.714ZJayson Wallishttps://zenith.aero/profile/JaysonWallis
<p>Thanks Dan,</p>
<p>I appreciate the reply. I will continue to research and see what I can find.</p>
<p>Jayson</p>
<p></p>
<p>Thanks Dan,</p>
<p>I appreciate the reply. I will continue to research and see what I can find.</p>
<p>Jayson</p>
<p></p>