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Subject: Re: Vne is NOT a meaningless number
From: Mark Sletten <mwsletten@gmail.com>
X-Original-To: Lancair Mailing List <lml@lancaironline.net>
Content-Type: multipart/alternative; boundary=0016e6d77e3c810208047a053840

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Content-Type: text/plain; charset=ISO-8859-1

Randy,

You keep repeating these stats as if they mean something germane to this
discussion. Are you implying LNC-2 pilots exceed Vne regularly?

I have two thoughts about these stats:

First, without knowing the number of times the published Vne has been
exceeded in LNC-2 aircraft, whether the airframe has been modified, the
flight conditions, altitude, KIAS/KTAS, etc, this 'stat' means nothing.
Anecdotal evidence is not data.

Second, the fact that Lancair hasn't issued a bulletin regarding flutter on
a certain model of aircraft tells me the Vne chosen for it appears to be
appropriate -- it says nothing about the prudence of exceeding it.

What this info says to me more than anything else is that most LNC-2 pilots
have a healthy respect for the published Vne.

--Mark Sletten


  Randy Stewart said:  [image: Message
Header]<https://mail.lancaironline.net/Lists/lml/Message/53359-H.txt>

[image: Undecoded
Message]<https://mail.lancaironline.net/Lists/lml/Message/53359-P.txt>
The stats are: Not one LNC-2 has come apart from exceeding Vne. There are no
service bulletins from Lancair regarding high speed flutter on a small
tail LNC-2.

--0016e6d77e3c810208047a053840
Content-Type: text/html; charset=ISO-8859-1
Content-Transfer-Encoding: quoted-printable

<span style=3D"font-family:arial, sans-serif;font-size:13px;border-collapse=
:collapse"><span style=3D"font-family:&#39;Gill Sans&#39;, &#39;Helvetica N=
eue&#39;, ErieLight, Erie, &#39;Eras Medium&#39;, Verdana, Tahoma, Arial, h=
elvetica, sans-serif;font-size:13px">Randy,</span></span><div>
<font class=3D"Apple-style-span" face=3D"&#39;Gill Sans&#39;, &#39;Helvetic=
a Neue&#39;, ErieLight, Erie, &#39;Eras Medium&#39;, Verdana, Tahoma, Arial=
, helvetica, sans-serif"><span class=3D"Apple-style-span" style=3D"border-c=
ollapse: collapse;"><br>
</span></font></div><div><span style=3D"font-family:arial, sans-serif;font-=
size:13px;border-collapse:collapse"><span style=3D"font-family:&#39;Gill Sa=
ns&#39;, &#39;Helvetica Neue&#39;, ErieLight, Erie, &#39;Eras Medium&#39;, =
Verdana, Tahoma, Arial, helvetica, sans-serif;font-size:13px">You keep repe=
ating these stats as if they mean something germane to this discussion. Are=
 you implying LNC-2 pilots exceed Vne regularly?</span><div>

<font face=3D"&#39;Gill Sans&#39;, &#39;Helvetica Neue&#39;, ErieLight, Eri=
e, &#39;Eras Medium&#39;, Verdana, Tahoma, Arial, helvetica, sans-serif"><b=
r></font></div><div><span style=3D"font-family:&#39;Gill Sans&#39;, &#39;He=
lvetica Neue&#39;, ErieLight, Erie, &#39;Eras Medium&#39;, Verdana, Tahoma,=
 Arial, helvetica, sans-serif;font-size:13px">I have two thoughts about the=
se stats:=A0</span><div>

<font face=3D"&#39;Gill Sans&#39;, &#39;Helvetica Neue&#39;, ErieLight, Eri=
e, &#39;Eras Medium&#39;, Verdana, Tahoma, Arial, helvetica, sans-serif"><b=
r></font></div><div><span style=3D"font-family:&#39;Gill Sans&#39;, &#39;He=
lvetica Neue&#39;, ErieLight, Erie, &#39;Eras Medium&#39;, Verdana, Tahoma,=
 Arial, helvetica, sans-serif;font-size:13px">First, without knowing the nu=
mber of times the published Vne has been exceeded in LNC-2 aircraft, whethe=
r the airframe has been modified, the flight conditions, altitude, KIAS/KTA=
S, etc, this &#39;stat&#39; means nothing. Anecdotal evidence is not data.<=
/span><div>

<font face=3D"&#39;Gill Sans&#39;, &#39;Helvetica Neue&#39;, ErieLight, Eri=
e, &#39;Eras Medium&#39;, Verdana, Tahoma, Arial, helvetica, sans-serif"><b=
r></font></div><div><span style=3D"font-family:&#39;Gill Sans&#39;, &#39;He=
lvetica Neue&#39;, ErieLight, Erie, &#39;Eras Medium&#39;, Verdana, Tahoma,=
 Arial, helvetica, sans-serif;font-size:13px">Second, the fact that Lancair=
 hasn&#39;t issued a bulletin regarding flutter on a certain model of aircr=
aft tells me the Vne chosen for it appears to be appropriate -- it says not=
hing about the prudence of exceeding it.</span></div>
<div><font class=3D"Apple-style-span" face=3D"&#39;Gill Sans&#39;, &#39;Hel=
vetica Neue&#39;, ErieLight, Erie, &#39;Eras Medium&#39;, Verdana, Tahoma, =
Arial, helvetica, sans-serif"><br></font></div><div><span style=3D"font-siz=
e: 13px; "></span><font class=3D"Apple-style-span" face=3D"&#39;Gill Sans&#=
39;, &#39;Helvetica Neue&#39;, ErieLight, Erie, &#39;Eras Medium&#39;, Verd=
ana, Tahoma, Arial, helvetica, sans-serif">What this info says to me more t=
han anything else is that most LNC-2 pilots have a healthy respect for the =
published Vne.<br>
</font><div>
<font face=3D"&#39;Gill Sans&#39;, &#39;Helvetica Neue&#39;, ErieLight, Eri=
e, &#39;Eras Medium&#39;, Verdana, Tahoma, Arial, helvetica, sans-serif"><b=
r></font></div><div><span style=3D"font-family:&#39;Gill Sans&#39;, &#39;He=
lvetica Neue&#39;, ErieLight, Erie, &#39;Eras Medium&#39;, Verdana, Tahoma,=
 Arial, helvetica, sans-serif;font-size:13px">--Mark Sletten<br>

<br><br><table width=3D"100%" border=3D"0" cellspacing=3D"0" cellpadding=3D=
"0"><tbody><tr><td style=3D"margin-top:0px;margin-right:0px;margin-bottom:0=
px;margin-left:0px;font-family:&#39;Gill Sans&#39;, &#39;Helvetica Neue&#39=
;, ErieLight, Erie, &#39;Eras Medium&#39;, Verdana, Tahoma, Arial, helvetic=
a, sans-serif;vertical-align:middle;white-space:normal;font-size:0.95em">

<table width=3D"100%" cellspacing=3D"0"><tbody><tr valign=3D"top"><td width=
=3D"100%" style=3D"margin-top:0px;margin-right:0px;margin-bottom:0px;margin=
-left:0px;font-family:&#39;Gill Sans&#39;, &#39;Helvetica Neue&#39;, ErieLi=
ght, Erie, &#39;Eras Medium&#39;, Verdana, Tahoma, Arial, helvetica, sans-s=
erif;vertical-align:middle;white-space:normal;font-size:0.95em">

<table><tbody><tr><td style=3D"margin-top:0px;margin-right:0px;margin-botto=
m:0px;margin-left:0px;font-family:&#39;Gill Sans&#39;, &#39;Helvetica Neue&=
#39;, ErieLight, Erie, &#39;Eras Medium&#39;, Verdana, Tahoma, Arial, helve=
tica, sans-serif;vertical-align:middle;white-space:normal;font-size:0.95em"=
>

</td><td style=3D"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-=
left:0px;font-family:&#39;Gill Sans&#39;, &#39;Helvetica Neue&#39;, ErieLig=
ht, Erie, &#39;Eras Medium&#39;, Verdana, Tahoma, Arial, helvetica, sans-se=
rif;vertical-align:middle;white-space:normal;font-size:0.95em">

Randy Stewart said:=A0</td></tr></tbody></table></td><td align=3D"center" s=
tyle=3D"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;f=
ont-family:&#39;Gill Sans&#39;, &#39;Helvetica Neue&#39;, ErieLight, Erie, =
&#39;Eras Medium&#39;, Verdana, Tahoma, Arial, helvetica, sans-serif;vertic=
al-align:middle;white-space:normal;font-size:0.95em">

<a href=3D"https://mail.lancaironline.net/Lists/lml/Message/53359-H.txt" st=
yle=3D"color:rgb(0, 0, 128);text-decoration:none;font-weight:bold;font-fami=
ly:&#39;Gill Sans&#39;, &#39;Helvetica Neue&#39;, ErieLight, Erie, &#39;Era=
s Medium&#39;, Verdana, Tahoma, Arial, helvetica, sans-serif" target=3D"_bl=
ank"><img border=3D"0" alt=3D"Message Header" style=3D"border-top-width:0px=
;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;borde=
r-style:initial;border-color:initial"></a><br>

<br><a href=3D"https://mail.lancaironline.net/Lists/lml/Message/53359-P.txt=
" style=3D"color:rgb(0, 0, 128);text-decoration:none;font-weight:bold;font-=
family:&#39;Gill Sans&#39;, &#39;Helvetica Neue&#39;, ErieLight, Erie, &#39=
;Eras Medium&#39;, Verdana, Tahoma, Arial, helvetica, sans-serif" target=3D=
"_blank"><img border=3D"0" alt=3D"Undecoded Message" style=3D"border-top-wi=
dth:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0p=
x;border-style:initial;border-color:initial"></a></td>

</tr></tbody></table></td></tr><tr><td style=3D"margin-top:0px;margin-right=
:0px;margin-bottom:0px;margin-left:0px;font-family:&#39;Gill Sans&#39;, &#3=
9;Helvetica Neue&#39;, ErieLight, Erie, &#39;Eras Medium&#39;, Verdana, Tah=
oma, Arial, helvetica, sans-serif;vertical-align:middle;white-space:normal;=
font-size:0.95em">

<div><span style=3D"font-family:&#39;Arial Narrow&#39;;font-size:large;font=
-style:italic;font-weight:bold">The stats are: Not one LNC-2 has come apart=
 from exceeding Vne. There are no service bulletins from Lancair regarding =
high speed flutter on a small tail=A0LNC-2.</span></div>

</td></tr></tbody></table></span></div></div></div></div></span>
</div>

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