Earthstar Forums

A gathering place for builders, owners, and admirers of Earthstar Aircraft designed by Mark Beierle.
https://fmdb.org/earthstar/

700T install.

https://fmdb.org/earthstar/viewtopic.php?t=1088

Page 1 of 3

700T install.

Posted: Wed Sep 18, 2013 6:13 pm
by cossitt.alan
Looks like I can move forward with installing a 700T (or perhaps E) on my
airplane (Thundergull JT2). I'm debating about putting the install on the
web (photos, brief text, maybe videos). Would any of you find this useful
and interesting? I'd love to get more people aware of Mark Beierle's
wonderful airplanes.

I'll be doing the install starting in mid December when school gets out.

-Alan

Re: 700T install.

Posted: Wed Sep 18, 2013 7:07 pm
by wsweidemann
I'd love to see some photos.

Skot

Re: 700T install.

Posted: Thu Sep 19, 2013 9:47 am
by blaswichk
Sure, get those photos of your install and progress, we can all enjoy.

Re: 700T install.

Posted: Thu Sep 19, 2013 2:52 pm
by tgulldave
Yes I'd like to see how it goes.

Re: 700T install.

Posted: Fri Sep 27, 2013 3:44 pm
by fgayford
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
</head>







<body style="background-color: #fff;">
<span style="display:none">&nbsp;</span>

<!--~-|**|PrettyHtmlStartT|**|-~-->
<div id="ygrp-mlmsg" style="position:relative;">
<div id="ygrp-msg" style="z-index: 1;">
<!--~-|**|PrettyHtmlEndT|**|-~-->

<div id="ygrp-text" >


<p><p>I sure would Alan.</p><p>I plan on putting a HKS Turbo on my JT2. With an inflight adjustable prop.</p><p>You would&nbsp;save me a lot of work.</p><p>Thanks</p><p>Fred</p><p>Post lots of pictures!<var id="yui-ie-cursor"></var>&nbsp;</p> <div class="ygroups-quoted"><br><br>---In earthstar_aircraft@yahoogroups.com, <dave.bonkowski@...> wrote:<br><br><div id="ygrps-yiv-294838447"><div dir="ltr">Yes I'd like to see how it goes.</div><div class="ygrps-yiv-294838447gmail_extra"><br><br><blockquote><span> <div class="ygrps-yiv-294838447gmail_quote"
>On Wed, Sep 18, 2013 at 12:53 PM, Alan Cossitt <span dir="ltr"><<a rel="nofollow" target="_blank" href="mailto:lownslowav8r@...">lownslowav8r@...</a>></span> wrote:<br>
<blockquote class="ygrps-yiv-294838447gmail_quote" style="border-left-color:rgb(204, 204, 204);border-left-width:1px;border-left-style:solid;">











<div>





<br><br>




<div dir="ltr"><div class="ygrps-yiv-294838447gmail_default" style="font-family:verdana, sans-serif;"><span style="color:rgb(51, 51, 51);font-size:13px;">Looks like I can move forward with installing a 700T (or perhaps E) on my airplane (Thundergull JT2). I'm debating about putting the install on the web (photos, brief text, maybe videos). Would any of you find this useful and interesting? I'd love to get more people aware of Mark Beierle's wonderful airplanes.</span><br>

</div><div class="ygrps-yiv-294838447gmail_default" style="font-family:verdana, sans-serif;"><span style="color:rgb(51, 51, 51);font-size:13px;"><br></span></div>

<div class="ygrps-yiv-294838447gmail_default" style="font-family:verdana, sans-serif;"><span style="color:rgb(51, 51, 51);font-size:13px;">I'll be doing the install starting in mid December when school gets out.</span></div>

<div class="ygrps-yiv-294838447gmail_default" style="font-family:verdana, sans-serif;"><span style="color:rgb(51, 51, 51);font-size:13px;"><br></span></div><div class="ygrps-yiv-294838447gmail_default" style="font-family:verdana, sans-serif;">

<span style="color:rgb(51, 51, 51);font-size:13px;">-Alan</span></div></div>






<br>


<br>




<div style="color:white;"></div>
</div>


</blockquote></div><br></span></blockquote></div>
</div>
</div></p>

</div>


<!--~-|**|PrettyHtmlStart|**|-~-->
<div style="color: #fff; height: 0;">__._,_.___</div>




<table cellspacing=4px style="margin-top: 20px; margin-bottom: 10px;">
<tbody>
<tr>
<td style="font-size: 12px; font-family: arial; font-weight: bold; padding: 7px 5px 5px; color: #FFF; background-color: #F2F2F2; border: 1px solid #EAEAEA " >
<a style="text-decoration: none; color: #2D50FD" href="http://groups.yahoo.com/group/Earthstar ... 467">Reply via web post</a>
</td>
<td style="font-size: 12px; font-family: arial; padding: 7px 5px 5px; color: #FFF; background-color: #F2F2F2; border: 1px solid #EAEAEA; " >
<a href="mailto:fgayford@silomail.com?subject=RE%3A%20700T%20install%2E" style="text-decoration: none; color: #2D50FD;">
Reply to sender </a>
</td>
<td style="font-size: 12px; font-family: arial; padding: 7px 5px 5px; color: #FFF; background-color: #F2F2F2; border: 1px solid #EAEAEA; ">
<a href="mailto:Earthstar_Aircraft@yahoogroups.com?subject=RE%3A%20700T%20install%2E" style="text-decoration: none; color: #2D50FD">
Reply to group </a>
</td>
<td style="font-size: 12px; font-family: arial; padding: 7px 5px 5px; color: #FFF; background-color: #F2F2F2; border: 1px solid #EAEAEA; " >
<a href="http://groups.yahoo.com/group/Earthstar ... AzMTQ2NTY-" style="text-decoration: none; color: #2D50FD">Start a New Topic</a>
</td>
<td style="font-size: 12px; font-family: arial; padding: 7px 5px 5px; color: #2D50FD; background-color: #F2F2F2; border: 1px solid #EAEAEA; " >
<a href="http://groups.yahoo.com/group/Earthstar ... NJZAMyNDQx" style="text-decoration: none; color: #2D50FD;">Messages in this topic</a>
(5)
</td>
</tr>
</tbody>
</table>


<!------- Start Nav Bar ------>
<!-- |**|begin egp html banner|**| -->
<!-- |**|end egp html banner|**| -->

<!-- |**|begin egp html banner|**| -->
<div id="ygrp-vital" style="background-color: #f2f2f2; font-family: Verdana; font-size: 10px; margin-bottom: 10px; padding: 10px;">
<span id="vithd" style="font-weight: bold; color: #333; text-transform: uppercase; ">Recent Activity:</span>

<ul style="list-style-type: none; margin: 0; padding: 0; display: inline;">
</ul>

<div style="clear: both; padding-top: 2px; color: #1e66ae;">
<a href="http://groups.yahoo.com/group/Earthstar ... AzMTQ2NTY-" style="text-decoration: none;">Visit Your Group</a>
</div>
</div>



<div id="ft" style="font-family: Arial; font-size: 11px; margin-top: 5px; padding: 0 2px 0 0; clear: both;">
<a href="http://groups.yahoo.com/;_ylc=X3oDMTJla ... MxNDY1Ng--" style="float: left;"><img src="http://l.yimg.com/ru/static/images/yg/i ... 137x15.png" height="15" width="137" alt="Yahoo! Groups" style="border: 0;"/></a>
<div style="color: #747575; float: right;">Switch to: <a href="mailto:Earthstar_Aircraft-traditional@yahoogroups.com?subject=Change Delivery Format: Traditional" style="text-decoration: none;">Text-Only</a>, <a href="mailto:Earthstar_Aircraft-digest@yahoogroups.com?subject=Email Delivery: Digest" class="margin-rt" style="text-decoration: none;">Daily Digest</a> &bull; <a href="mailto:Earthstar_Aircraft-unsubscribe@yahoogroups.com?subject=Unsubscribe" style="text-decoration: none;">Unsubscribe</a> &bull; <a href="http://info.yahoo.com/legal/us/yahoo/utos/terms/" style="text-decoration: none;">Terms of Use</a> &bull; <a href="mailto:ygroupsnotifications@yahoogroups.com?subject=Feedback on the redesigned individual mail v1" style="text-decoration: none;">Send us Feedback </a></div>
</div>

<!-- |**|end egp html banner|**| -->

</div> <!-- ygrp-msg -->

<!-- Sponsor -->
<!-- |**|begin egp html banner|**| -->
<div id="ygrp-sponsor" style="width:160px; float:right; clear:none; margin:0 0 25px 0; background: #fff;">

<!-- Start Recommendations -->
<div id="ygrp-reco">
</div>
<!-- End Recommendations -->



</div> <!-- |**|end egp html banner|**| -->

<div style="clear:both; color: #FFF; font-size:1px;">.</div>
</div>

<img src="http://geo.yahoo.com/serv?s=97359714/gr ... 1380314656" width="1" height="1"> <br>

<div style="color: #fff; height: 0;">__,_._,___</div>
<!--~-|**|PrettyHtmlEnd|**|-~-->

</body>

<!--~-|**|PrettyHtmlStart|**|-~-->
<head>
<style type="text/css">
<!--
#ygrp-mkp {
border: 1px solid #d8d8d8;
font-family: Arial;
margin: 10px 0;
padding: 0 10px;
}

#ygrp-mkp hr {
border: 1px solid #d8d8d8;
}

#ygrp-mkp #hd {
color: #628c2a;
font-size: 85%;
font-weight: 700;
line-height: 122%;
margin: 10px 0;
}

#ygrp-mkp #ads {
margin-bottom: 10px;
}

#ygrp-mkp .ad {
padding: 0 0;
}

#ygrp-mkp .ad p {
margin: 0;
}

#ygrp-mkp .ad a {
color: #0000ff;
text-decoration: none;
}
#ygrp-sponsor #ygrp-lc {
font-family: Arial;
}

#ygrp-sponsor #ygrp-lc #hd {
margin: 10px 0px;
font-weight: 700;
font-size: 78%;
line-height: 122%;
}

#ygrp-sponsor #ygrp-lc .ad {
margin-bottom: 10px;
padding: 0 0;
}

#actions {
font-family: Verdana;
font-size: 11px;
padding: 10px 0;
}

#activity {
background-color: #e0ecee;
float: left;
font-family: Verdana;
font-size: 10px;
padding: 10px;
}

#activity span {
font-weight: 700;
}

#activity span:first-child {
text-transform: uppercase;
}

#activity span a {
color: #5085b6;
text-decoration: none;
}

#activity span span {
color: #ff7900;
}

#activity span .underline {
text-decoration: underline;
}

.attach {
clear: both;
display: table;
font-family: Arial;
font-size: 12px;
padding: 10px 0;
width: 400px;
}

.attach div a {
text-decoration: none;
}

.attach img {
border: none;
padding-right: 5px;
}

.attach label {
display: block;
margin-bottom: 5px;
}

.attach label a {
text-decoration: none;
}

blockquote {
margin: 0 0 0 4px;
}

.bold {
font-family: Arial;
font-size: 13px;
font-weight: 700;
}

.bold a {
text-decoration: none;
}

dd.last p a {
font-family: Verdana;
font-weight: 700;
}

dd.last p span {
margin-right: 10px;
font-family: Verdana;
font-weight: 700;
}

dd.last p span.yshortcuts {
margin-right: 0;
}

div.attach-table div div a {
text-decoration: none;
}

div.attach-table {
width: 400px;
}

div.file-title a, div.file-title a:active, div.file-title a:hover, div.file-title a:visited {
text-decoration: none;
}

div.photo-title a, div.photo-title a:active, div.photo-title a:hover, div.photo-title a:visited {
text-decoration: none;
}

div#ygrp-mlmsg #ygrp-msg p a span.yshortcuts {
font-family: Verdana;
font-size: 10px;
font-weight: normal;
}

.green {
color: #628c2a;
}

.MsoNormal {
margin: 0 0 0 0;
}

o {
font-size: 0;
}

#photos div {
float: left;
width: 72px;
}

#photos div div {
border: 1px solid #666666;
height: 62px;
overflow: hidden;
width: 62px;
}

#photos div label {
color: #666666;
font-size: 10px;
overflow: hidden;
text-align: center;
white-space: nowrap;
width: 64px;
}

#reco-category {
font-size: 77%;
}

#reco-desc {
font-size: 77%;
}

.replbq {
margin: 4px;
}

#ygrp-actbar div a:first-child {
/* border-right: 0px solid #000;*/
margin-right: 2px;
padding-right: 5px;
}

#ygrp-mlmsg {
font-size: 13px;
font-family: Arial, helvetica,clean, sans-serif;
*font-size: small;
*font: x-small;
}

#ygrp-mlmsg table {
font-size: inherit;
font: 100%;
}

#ygrp-mlmsg select, input, textarea {
font: 99% Arial, Helvetica, clean, sans-serif;
}

#ygrp-mlmsg pre, code {
font:115% monospace;
*font-size:100%;
}

#ygrp-mlmsg * {
line-height: 1.22em;
}

#ygrp-mlmsg #logo {
padding-bottom: 10px;
}


#ygrp-msg p a {
font-family: Verdana;
}

#ygrp-msg p#attach-count span {
color: #1E66AE;
font-weight: 700;
}

#ygrp-reco #reco-head {
color: #ff7900;
font-weight: 700;
}

#ygrp-reco {
margin-bottom: 20px;
padding: 0px;
}

#ygrp-sponsor #ov li a {
font-size: 130%;
text-decoration: none;
}

#ygrp-sponsor #ov li {
font-size: 77%;
list-style-type: square;
padding: 6px 0;
}

#ygrp-sponsor #ov ul {
margin: 0;
padding: 0 0 0 8px;
}

#ygrp-text {
font-family: Georgia;
}

#ygrp-text p {
margin: 0 0 1em 0;
}

#ygrp-text tt {
font-size: 120%;
}

#ygrp-vital ul li:last-child {
border-right: none !important;
}
-->
</style>
</head>

<!--~-|**|PrettyHtmlEnd|**|-~-->
</html>
<!-- end group email -->

Re: 700T install.

Posted: Sat Sep 28, 2013 11:00 am
by blaswichk
You will like the inflight adjustable, it’s like a car transmission having an overdrive. Finer for climb, two taps of the switch for fast cruise. My hangar partner just installed the bigger Ivo on his 912 powered Titan, and we’re still getting the brushes bracket fabricated. Should be interesting.

Re: 700T install.

Posted: Sat Sep 28, 2013 2:22 pm
by cossitt.alan
Mark may have some ideas about how to fabricate the bushings. Several
years ago I bought some from him that had been designed by one of his
workers but I don't know if he is still making them.

Rather than being large and aluminum (both of which increase wear and
decrease reliability), Mark's bushings are small diameter (surface speed is
lower) and brass (less wear) and are designed to fit in the hollow center
found in many gearboxes, and with the existing IvoProp brushes. I still
have mine somewhere. I've kept it in case I ever am in the place where I
want a variable pitch prop again.

Doing this has a lot of advantages. I would NEVER use the existing IvoProp
bushing system and I'm amazed that after all these years IvoProp does not
have a brush/bushing setup like that I got from Mark (maybe IvoProp finally
has made one?).

-Alan

Re: 700T install.

Posted: Sun Sep 29, 2013 9:30 am
by blaswichk
When I first saw the Ivo brush set-up for the slip rings, I was not impressed. However with many flights and adjustments, it still seems to be working just fine. One thing that I did learn along the way was to NOT polish the slip rings and remove the carbon film, as that will accelerate the wear of the brushes. I still have a new spare set for the future. The biggest complaint I have with the Ivo set-up is the way the motor wire leads are attached, just squished between the insulator rings and the slip rings. The wire leads of the bigger Ivo had been squished in too far, flattening some of the wire insulation, which I thought might effect the prop torqueing, so when we installed it, I made sure that the insulation was NOT in the squishing area, just the bare wire ends.

Re: 700T install.

Posted: Wed Nov 27, 2013 11:50 am
by jaimesadasalinas
You guys with the IVO variable pitch propellers just be very careful
The  mechanism tends to fail pretty quickly and you MUST set it not too coarse (best for speed) as this setting, under failure, will not permit you to develop much power (engine bogs down) and you will have to land in gliding mode


Sent via the Samsung Galaxy Note® 3, an AT&T 4G LTE smartphone

Re: 700T install.

Posted: Wed Nov 27, 2013 1:46 pm
by cossitt.alan
The medium IVOs have a better screw thread (the correct square thread) but
still I don't consider them reliable enough. Also, since they twist the
tip of the prop and therefore don't change the angle of attack throughout
the blade they aren't as efficient. I figure a good fixed pitch will
generally equal a IVO adjustable and be much more reliable.

-Alan
All times are UTC-06:00
Page 1 of 3

Powered by phpBB® Forum Software © phpBB Limited