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converting an RV to LSA

 
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rv6n(at)optonline.net
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PostPosted: Sat May 02, 2009 6:11 pm    Post subject: converting an RV to LSA Reply with quote

6nbsp;Dear RVers
6nbsp;
This might sound ridiculous 6nbsp;but does anyone know if it is possible to convert a registered RV6 to fly within the LSA 6nbsp;guidelines? 6nbsp; I know it might take mountains of changes but I am just wondering if it is at all possible E 6nbsp; Some of the obstacles 6nbsp;to overcome would 6nbsp;include addressing the the weight C I think that might be possible by stripping out all the niceties and getting back to only what is basic E 6nbsp; Another way to reduce the weight 6nbsp;is by doing what one of the LSA 6nbsp;companies do which is to just say that the baggage capacity is now only xx instead of what it is actually capable of E 6nbsp; The next concern is speed at full power E 6nbsp; With the existing O-360 this might be difficult E 6nbsp; One LSA 6nbsp;company uses a ground adjustable prop to limit the max speed of their airplane C so I am sure that would help E 6nbsp; Eliminating the good looking wheel pants could add some drag too E Some props have RPM restrictions which must be adhered 6nbsp;to willingly E 6nbsp; Can the operating limitations specify a maximum speed of 120 kts 6nbsp;or an RPM that limits the speed to 120 kts E 6nbsp; Some LSAs 6nbsp;have a higher RPM for a maximum number of minutes 6nbsp;for take-off and then a reduced RPM thereafter E 6nbsp; How could the clean stall speed be reduced to 52 MPH? 6nbsp; Would the lighter weight and maybe some vortex generators accomplish that? 6nbsp; From what I have read C no plane can be flown as an LSA 6nbsp;unless it has always been able to fly within the parameters of 6nbsp;one C so C is it possible to de-register my RV6 C surrender the data plate 6nbsp;and re-register it as a plane that is capable of flying within the LSA 6nbsp;parameters E
6nbsp;
Maybe I am crazy for wondering about this but I am not interested in building another plane Cthe market has been too soft for selling at a reasonable price 6nbsp;and I don 7t want to spend 4125 C000 for an LSA E 6nbsp; I am sure I am not the only one with a medical problem that has wondered this C so is this doable 6nbsp;or just a foolish wish E 6nbsp;
6nbsp;
Bob


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dougsnash



Joined: 14 Apr 2008
Posts: 281

PostPosted: Sat May 02, 2009 6:33 pm    Post subject: converting an RV to LSA Reply with quote

Bob, I'm no expert (being from Canada ie:no LSA here) but from what I understand, once an aircraft has had a registered gross weight of over 1320 lbs, it can never be an LSA no matter what you do to it.

Building a new RV, it might be possible but not likely doable with a already built aircraft.

Doug MacDonald
NW Ontario, Canada
RV-4 dreamer

Do Not Archive
--- On Sat, 5/2/09, rv6n(at)optonline.net <rv6n(at)optonline.net> wrote:

Quote:
From: rv6n(at)optonline.net <rv6n(at)optonline.net>
Subject: converting an RV to LSA
To: "rv-list(at)matronics.com" <rv-list(at)matronics.com>
Received: Saturday, May 2, 2009, 9:08 PM
Dear RVers

This might sound ridiculous but does anyone know if it is
possible to convert a registered RV6 to fly within the LSA
guidelines? I know it might take mountains of changes but I
am just wondering if it is at all possible. Some of the
obstacles to overcome would include addressing the the
weight, I think that might be possible by stripping out all
the niceties and getting back to only what is basic.
Another way to reduce the weight is by doing what one of the
LSA companies do which is to just say that the baggage
capacity is now only xx instead of what it is actually
capable of. The next concern is speed at full power. With
the existing O-360 this might be difficult. One LSA company
uses a ground adjustable prop to limit the max speed of
their airplane, so I am sure that would help. Eliminating
the good looking wheel pants could add some drag too. Some
props have RPM restrictions which must be adhered to
willingly. Can the operating limitations specify a maximum
speed of 120 kts or an RPM that limits the speed to 120 kts.
Some LSAs have a higher RPM for a maximum number of minutes
for take-off and then a reduced RPM thereafter. How could
the clean stall speed be reduced to 52 MPH? Would the
lighter weight and maybe some vortex generators accomplish
that? From what I have read, no plane can be flown as an
LSA unless it has always been able to fly within the
parameters of one, so, is it possible to de-register my RV6,
surrender the data plate and re-register it as a plane that
is capable of flying within the LSA parameters.

Maybe I am crazy for wondering about this but I am not
interested in building another plane ,the market has been
too soft for selling at a reasonable price and I don't
want to spend $125,000 for an LSA. I am sure I am not the
only one with a medical problem that has wondered this, so
is this doable or just a foolish wish.

Bob


__________________________________________________________________
Yahoo! Canada Toolbar: Search from anywhere on the web, and bookmark your favourite sites. Download it now


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rv8a2001(at)yahoo.com
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PostPosted: Sat May 02, 2009 7:23 pm    Post subject: converting an RV to LSA Reply with quote

Convert it by selling it and building Van's light sport (RV12), and, have money left over!
Scott
--- On Sat, 5/2/09, rv6n(at)optonline.net <rv6n(at)optonline.net> wrote:

Quote:
From: rv6n(at)optonline.net <rv6n(at)optonline.net>
Subject: converting an RV to LSA
To: "rv-list(at)matronics.com" <rv-list(at)matronics.com>
Date: Saturday, May 2, 2009, 7:08 PM

 Dear RVers
 
This might sound ridiculous but does anyone know
if it is possible to convert a registered RV6 to fly within
the LSA guidelines?  I know it might take
mountains of changes but I am just wondering if it is at all
possible.  Some of the obstacles to overcome
would include addressing the the weight, I think that
might be possible by stripping out all the niceties and
getting back to only what is basic.  Another way to
reduce the weight is by doing what one of the
LSA companies do which is to just say that the baggage
capacity is now only xx instead of what it is actually
capable of.  The next concern is speed at full
power.  With the existing O-360 this might be
difficult.  One LSA company uses a ground
adjustable prop to limit the max speed of their airplane, so
I am sure that would help.  Eliminating the good
looking wheel pants could add some drag too. Some props have
RPM restrictions which must be adhered to
willingly.  Can the operating limitations specify a
maximum speed of 120 kts or an RPM that limits the
speed to 120 kts.  Some LSAs have a higher RPM for
a maximum number of minutes for take-off and then a
reduced RPM thereafter.  How could the clean stall
speed be reduced to 52 MPH?  Would the lighter weight
and maybe some vortex generators accomplish that?  From
what I have read, no plane can be flown as an
LSA unless it has always been able to fly within the
parameters of one, so, is it possible to de-register my
RV6, surrender the data plate and re-register it as a
plane that is capable of flying within the
LSA parameters.
 
Maybe I am crazy for wondering about this but I am not
interested in building another plane ,the market has been
too soft for selling at a reasonable price and I
don't want to spend $125,000 for an LSA.  I am sure
I am not the only one with a medical problem that has
wondered this, so is this doable or just a foolish
wish. 
 
Bob



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ceengland(at)bellsouth.ne
Guest





PostPosted: Sat May 02, 2009 7:24 pm    Post subject: converting an RV to LSA Reply with quote

rv6n(at)optonline.net wrote:
Quote:
Dear RVers

This might sound ridiculous but does anyone know if it is possible to
convert a registered RV6 to fly within the LSA guidelines? I know it
might take mountains of changes but I am just wondering if it is at
all possible. Some of the obstacles to overcome would include
addressing the the weight, I think that might be possible by stripping
out all the niceties and getting back to only what is basic. Another
way to reduce the weight is by doing what one of the LSA companies do
which is to just say that the baggage capacity is now only xx instead
of what it is actually capable of. The next concern is speed at full
power. With the existing O-360 this might be difficult. One
LSA company uses a ground adjustable prop to limit the max speed of
their airplane, so I am sure that would help. Eliminating the good
looking wheel pants could add some drag too. Some props have RPM
restrictions which must be adhered to willingly. Can the operating
limitations specify a maximum speed of 120 kts or an RPM that limits
the speed to 120 kts. Some LSAs have a higher RPM for a maximum
number of minutes for take-off and then a reduced RPM thereafter. How
could the clean stall speed be reduced to 52 MPH? Would the lighter
weight and maybe some vortex generators accomplish that? From what I
have read, no plane can be flown as an LSA unless it has always been
able to fly within the parameters of one, so, is it possible to
de-register my RV6, surrender the data plate and re-register it as a
plane that is capable of flying within the LSA parameters.

Maybe I am crazy for wondering about this but I am not interested in
building another plane ,the market has been too soft for selling at a
reasonable price and I don't want to spend $125,000 for an LSA. I am
sure I am not the only one with a medical problem that has wondered
this, so is this doable or just a foolish wish.

Bob
Bob,


I think it will be pretty much impossible to achieve LSA requirements
for a lot of different reasons (most already mentioned), but it has been
done a couple of times with new-registration RV-9's.

Charlie


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sbuc(at)hiwaay.net
Guest





PostPosted: Sat May 02, 2009 7:32 pm    Post subject: converting an RV to LSA Reply with quote

MacDonald Doug wrote:
Quote:



Bob, I'm no expert (being from Canada ie:no LSA here) but from what I
understand, once an aircraft has had a registered gross weight of
over 1320 lbs, it can never be an LSA no matter what you do to it.

This is correct.

Sam Buchanan


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mrobert569(at)hotmail.com
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PostPosted: Sun May 03, 2009 8:42 am    Post subject: converting an RV to LSA Reply with quote

The simple answer to your questino is 'NO'.
 
The long answer is twofold.  Once your aircraft has been given a gross weight over 1320 you can't go back.  The next answer is that once an aircraft is certificated in a class it can't be changed over to LSA. Why?....Because it does not have to.  If the aircraft in question meets the definition of an LSA aircraft per FAR 1 then the aircraft may be operated under the LSA rules irregardless of the aircracft certification category C Experimental C Standard C whatever.
 
Mike Robertson
Das Fed
 
Date: Sun C 3 May 2009 02:08:49 +0000
From: rv6n(at)optonline.net
Subject: converting an RV to LSA
To: rv-list(at)matronics.com

 Dear RVers
 
This might sound ridiculous but does anyone know if it is possible to convert a registered RV6 to fly within the LSA guidelines?  I know it might take mountains of changes but I am just wondering if it is at all possible.  Some of the obstacles to overcome would include addressing the the weight C I think that might be possible by stripping out all the niceties and getting back to only what is basic.  Another way to reduce the weight is by doing what one of the LSA companies do which is to just say that the baggage capacity is now only xx instead of what it is actually capable of.  The next concern is speed at full power.  With the existing O-360 this might be difficult.  One LSA company uses a ground adjustable prop to limit the max speed of their airplane C so I am sure that would help.  Eliminating the good looking wheel pants could add some drag too. Some props have RPM restrictions which must be adhered to willingly.  Can the operating limitations specify a maximum speed of 120 kts or an RPM that limits the speed to 120 kts.  Some LSAs have a higher RPM for a maximum number of minutes for take-off and then a reduced RPM thereafter.  How could the clean stall speed be reduced to 52 MPH?  Would the lighter weight and maybe some vortex generators accomplish that?  From what I have read C no plane can be flown as an LSA unless it has always been able to fly within the parameters of one C so C is it possible to de-register my RV6 C surrender the data plate and re-register it as a plane that is capable of flying within the LSA parameters.
 
Maybe I am crazy for wondering about this but I am not interested in building another plane Cthe market has been too soft for selling at a reasonable price and I don't want to spend $125 C000 for an LSA.  I am sure I am not the only one with a medical problem that has wondered this C so is this doable or just a foolish wish. 
 
Bob

Hotmail® has ever-growing storage! Don’t worry about storage limits. Check it out. [quote][b]


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rv6n(at)optonline.net
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PostPosted: Sun May 03, 2009 9:52 am    Post subject: converting an RV to LSA Reply with quote

Dear Mike C
6nbsp;
I was speaking with the people selling the Paradise LSA 6nbsp;from Brazil and they said that in Brazil they have their plane certified as a four seater with a gross weight in excess of 1700 lbs E 6nbsp; In order to certify it LSA 6nbsp;in the USA they removed the two rear seats and declared the baggage capacity to be less E Is this something totally different? 6nbsp; Is it possible to de register the RV 6nbsp;and apply all over again?
6nbsp;
I suppose it is time to moth-ball the RV E
6nbsp;
Thanks

---


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larywil(at)comcast.net
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PostPosted: Sun May 03, 2009 11:11 am    Post subject: converting an RV to LSA Reply with quote

At 12:36 PM 5/3/2009, you wrote:
Quote:
The simple answer to your questino is 'NO'.

<The long answer is twofold. Once your aircraft has been given a
gross weight over 1320 you can't go back.>

Mike,

I know it is not *very* easy, but can't you make some "minor" change
in your airframe, power plant, or prop and then declare that the
aircraft no longer has the ability to carry 1320 + lbs? Then apply
for the "self conducted" 5 hour re-certification.

Louis I Willig
1640 Oakwood Dr.
Penn Valley, PA 19072
610 668-4964
RV-4, N180PF
190HP IO-360, C/S prop


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stein(at)steinair.com
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PostPosted: Sun May 03, 2009 12:22 pm    Post subject: converting an RV to LSA Reply with quote

Again - NO.

However, if you did all that before you ever got the airplane certified then
it may be possible. This is no different than trying to change a fat
ercoupe or fat chief that were to heavy for LSA...or a C-120/140. You
simply can't go backwards with the paperwork, even if you can with the
physical plane. There are a lot of planes that could be "lightened", but
that in itself won't work because the paperwork at one time said your plane
had a higher gross weight.

I think it's pretty clear in my opinion. I would put my efforts into just
building an LSA the first time.

My 2 cents as usual.

Cheers,
Stein

[quote]--


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pitts_pilot(at)bellsouth.
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PostPosted: Sun May 03, 2009 12:37 pm    Post subject: converting an RV to LSA Reply with quote

SteinAir, Inc. wrote:
Quote:


Again - NO.
snip

Quote:

I think it's pretty clear in my opinion. I would put my efforts into just
building an LSA the first time.
And you could build your RV very light, the way you want it. You could

probably remove the data plate from the engine, put a smaller carb on
it, ...... to derate the engine ..... and have it meet all the LSA
requirements ...... and then fix the problems later after certification
and the phase 1 testing. And you'd end up with the same airplane in the
LSA category. Far more work than you really want, I guess, but still
easier than making the present plane fit the category. Turning in the
airworthiness certificate, making the changes to make the airplane legal
LSA and re-certifying it may work. Stranger things have happened.
Linn

[quote]
My 2 cents as usual.

Cheers,
Stein

> --


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Peter Laurence



Joined: 10 Jan 2006
Posts: 50

PostPosted: Mon May 04, 2009 4:53 am    Post subject: converting an RV to LSA Reply with quote

Bob,

My 2 cents

If you want to fly an LSA and stay with a vans, buy a RV9A. This plane can be certified LSA with an. appropriate engine/prop.

Peter


From: owner-rv-list-server(at)matronics.com [mailto:owner-rv-list-server(at)matronics.com] On Behalf Of rv6n(at)optonline.net
Sent: Saturday, May 02, 2009 10:09 PM
To: rv-list(at)matronics.com
Subject: converting an RV to LSA


Dear RVers



This might sound ridiculous but does anyone know if it is possible to convert a registered RV6 to fly within the LSA guidelines? I know it might take mountains of changes but I am just wondering if it is at all possible. Some of the obstacles to overcome would include addressing the the weight, I think that might be possible by stripping out all the niceties and getting back to only what is basic. Another way to reduce the weight is by doing what one of the LSA companies do which is to just say that the baggage capacity is now only xx instead of what it is actually capable of. The next concern is speed at full power. With the existing O-360 this might be difficult. One LSA company uses a ground adjustable prop to limit the max speed of their airplane, so I am sure that would help. Eliminating the good looking wheel pants could add some drag too. Some props have RPM restrictions which must be adhered to willingly. Can the operating limitations specify a maximum speed of 120 kts or an RPM that limits the speed to 120 kts. Some LSAs have a higher RPM for a maximum number of minutes for take-off and then a reduced RPM thereafter. How could the clean stall speed be reduced to 52 MPH? Would the lighter weight and maybe some vortex generators accomplish that? From what I have read, no plane can be flown as an LSA unless it has always been able to fly within the parameters of one, so, is it possible to de-register my RV6, surrender the data plate and re-register it as a plane that is capable of flying within the LSA parameters.



Maybe I am crazy for wondering about this but I am not interested in building another plane ,the market has been too soft for selling at a reasonable price and I don't want to spend $125,000 for an LSA. I am sure I am not the only one with a medical problem that has wondered this, so is this doable or just a foolish wish.



Bob


[quote][b]


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ronlee(at)pcisys.net
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PostPosted: Mon May 04, 2009 5:24 am    Post subject: converting an RV to LSA Reply with quote

Have you examined a trade...RV for an LSA?

Ron Lee

Do not archive
[quote][b]


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mrobert569(at)hotmail.com
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PostPosted: Mon May 04, 2009 9:07 am    Post subject: converting an RV to LSA Reply with quote

Answer #1 is yes C they can do that as they are the manufacturer and it is for brand new aircraft that have never received an airworthiness certificate.
 
Answer #2 is NO C sorry.  The FAA keeps track of the serial number as well as the 'N' number.
 
Mike Robertson
Das Fed
 
Date: Sun C 3 May 2009 17:48:26 +0000
From: rv6n(at)optonline.net
Subject: Re: RE: converting an RV to LSA
To: rv-list(at)matronics.com

Dear Mike C
 
I was speaking with the people selling the Paradise LSA from Brazil and they said that in Brazil they have their plane certified as a four seater with a gross weight in excess of 1700 lbs.  In order to certify it LSA in the USA they removed the two rear seats and declared the baggage capacity to be less. Is this something totally different?  Is it possible to de register the RV and apply all over again?
 
I suppose it is time to moth-ball the RV.
 
Thanks

---


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mrobert569(at)Hotmail.com
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PostPosted: Mon May 04, 2009 9:23 am    Post subject: converting an RV to LSA Reply with quote

Unfortunately no.  The opening statement in FAR 1 for a light-sport aircraft states "Light-sport aircraft means an aircraft C other than a helicopter or powered-lift that C since its original certification C has continued to meet the following:".
 
There are several standard category aircraft that this hurt.  A prime example is the Ercoupe.  The 'C' model meets light-sport weights but the 'D' model does not.  Numerous 'C' models were converted to 'D' models.  Now they want to go back to being a 'C' model but they can't because of this wording.
 
Mike Robertson
Das Fed
 
Quote:
Date: Sun C 3 May 2009 15:06:54 -0400
To: rv-list(at)matronics.com
From: larywil(at)comcast.net
Subject: RE: converting an RV to LSA

--> RV-List message posted by: Louis Willig <larywil(at)comcast.net>

At 12:36 PM 5/3/2009 C you wrote:
>The simple answer to your questino is 'NO'.
>
><The long answer is twofold. Once your aircraft has been given a
>gross weight over 1320 you can't go back.>

Mike C

I know it is not *very* easy C but can't you make some "minor" change
in your airframe C power plant C or prop and then declare that the
aircraft no longer has the ability to carry 1320 + lbs? Then apply
for the "self conducted" 5 hour re-certification.





Louis I Willig
1640 Oakwood Dr.
Penn Valley C PA 19072
610 668-4964
RV-4 C N180PF
= Archive Search & Download C 7-Day Browse C Chat C FAQ C
&g==

[quote]


Windows Live™: Keep your life in sync. Check it out.
Quote:
[b]


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khorton01(at)rogers.com
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PostPosted: Mon May 04, 2009 10:49 am    Post subject: converting an RV to LSA Reply with quote

If you had an existing RV, with an airworthiness certificate, you
would probably need to make quite a few modifications before you could
legitimately claim it met LSA specs. What if, after making these
changes, the manufacturer (you) decided that the changes were
substantial enough that this was really a new design. After
assembling the modified amateur-built components from the old
aircraft, the manufacturer installs a new data plate, with a new model
and serial number, and with a gross weight of 1320 lb. Bingo - a
potential LSA, assuming flight tests show it meets LSA specs.

Why wouldn't this work?

Kevin Horton
On 4 May 2009, at 13:06, Mike Robertson wrote:

Quote:
Unfortunately no. The opening statement in FAR 1 for a light-sport
aircraft states "Light-sport aircraft means an aircraft, other than
a helicopter or powered-lift that, since its original certification,
has continued to meet the following:".

There are several standard category aircraft that this hurt. A
prime example is the Ercoupe. The 'C' model meets light-sport
weights but the 'D' model does not. Numerous 'C' models were
converted to 'D' models. Now they want to go back to being a 'C'
model but they can't because of this wording.

Mike Robertson
Das Fed

> Date: Sun, 3 May 2009 15:06:54 -0400
> To: rv-list(at)matronics.com
> From: larywil(at)comcast.net
> Subject: RE: converting an RV to LSA
>
>
>
> At 12:36 PM 5/3/2009, you wrote:
> >The simple answer to your questino is 'NO'.
> >
> ><The long answer is twofold. Once your aircraft has been given a
> >gross weight over 1320 you can't go back.>
>
> Mike,
>
> I know it is not *very* easy, but can't you make some "minor" change
> in your airframe, power plant, or prop and then declare that the
> aircraft no longer has the ability to carry 1320 + lbs? Then apply
> for the "self conducted" 5 hour re-certification.
>
>
>
>
>
> Louis I Willig
> 1640 Oakwood Dr.
> Penn Valley, PA 19072
> 610 668-4964
> RV-4, N180PF
>= Archive Search & Download, 7-Day Browse, Chat, FAQ,
&g==
>
>
>


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mrobert569(at)hotmail.com
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PostPosted: Mon May 04, 2009 12:20 pm    Post subject: converting an RV to LSA Reply with quote

It might.  there are a couple of RV-9A's in Florida that are LSA qualified.
 
Mike Robertson
 
Quote:
From: khorton01(at)rogers.com
To: rv-list(at)matronics.com
Subject: Re: converting an RV to LSA
Date: Mon C 4 May 2009 14:36:15 -0400

--> RV-List message posted by: Kevin Horton <khorton01(at)rogers.com>

If you had an existing RV C with an airworthiness certificate C you
would probably need to make quite a few modifications before you could
legitimately claim it met LSA specs. What if C after making these
changes C the manufacturer (you) decided that the changes were
substantial enough that this was really a new design. After
assembling the modified amateur-built components from the old
aircraft C the manufacturer installs a new data plate C with a new model
and serial number C and with a gross weight of 1320 lb. Bingo - a
potential LSA C assuming flight tests show it meets LSA specs.

Why wouldn't this work?

Kevin Horton


On 4 May 2009 C at 13:06 C Mike Robertson wrote:

> Unfortunately no. The opening statement in FAR 1 for a light-sport
> aircraft states "Light-sport aircraft means an aircraft C other than
> a helicopter or powered-lift that C since its original certification C
> has continued to meet the following:".
>
> There are several standard category aircraft that this hurt. A
> prime example is the Ercoupe. The 'C' model meets light-sport
> weights but the 'D' model does not. Numerous 'C' models were
> converted to 'D' models. Now they want to go back to being a 'C'
> model but they can't because of this wording.
>
> Mike Robertson
> Das Fed
>
> > Date: Sun C 3 May 2009 15:06:54 -0400
> > To: rv-list(at)matronics.com
> > From: larywil(at)comcast.net
> > Subject: RE: converting an RV to LSA
> >
> > --> RV-List message posted by: Louis Willig <larywil(at)comcast.net>
> >
> > At 12:36 PM 5/3/2009 C you wrote:
> > >The simple answer to your questino is 'NO'.
> > >
> > ><The long answer is twofold. Once your aircraft has been given a
> > >gross weight over 1320 you can't go back.>
> >
> > Mike C
> >
> > I know it is not *very* easy C but can't you make some "minor" change
> > in your airframe C power plant C or prop and then declare that the
> > aircraft no longer has the ability to carry 1320 + lbs? Then apply
> > for the "self conducted" 5 hour re-certification.
> >
> >
> >
> >
> >
> > Louis I Willig
> > 1640 Oakwood Dr.
> > Penn Valley C PA 19072
> > 610 668-4964
> > RV-4 C N180PF
> >= Archive Search & Download C 7-Day Browse C Chat C FAQ C
> &g==
> >
> >
&====================

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