Today's Message Index:
----------------------
1. 04:36 AM - 680E-666-10 (Barry Collman)
2. 05:29 AM - Re: 500A IO-550 Conversion (Barry Collman)
3. 07:00 AM - Re: 500A IO-550 Conversion (nico css)
4. 07:12 AM - Re: 500A IO-550 Conversion (nico css)
5. 08:07 AM - Re: 500A IO-550 Conversion (Barry Collman)
6. 12:01 PM - Random thoughts on Merlyn Products conversions (John Vormbaum)
Message 1
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Hello All,
Model 680E s/n 680E-666-10 was reported as being with Quest Aviation, at
Lake City, Florida in April 2004.
This one was originally N6258B and was then exported to Colombia in
September 1978 as HK-2173X then HK-2173P.
It has now been identified as "MT-1802", being a Mexican Navy serial and
was photographed at Vera Cruz in Mexico in November 2001, outside what
is believed to be a technical school.
So, has anyone seen this 680E at Lake City?
I did email Quest Aviation in May this year, asking them about this
Commander, but never received a reply. (jeff@quest-aviation.com)
If anyone knows this outfit, could they make enquiries about this 680E
for me?
Is it being restored for sale?
Can they confirm its previous history?
Very Best Regards,
Barry
Message 2
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| Subject: | Re: 500A IO-550 Conversion |
Hi Nico,
By clicking on "Aircraft Models > Piston Twins > 500A Colemill", I
couldn't find a photo of the Colemill 500A (Colemill Super 300), but did
find photos of the Merlyn 500B. (Aircraft Models > Piston Twins > 500B
Merlyn).
Let me know the registration of the Colemill 500A and I'll check it out.
Merlyn Commanders
The Merlyn 500B pictured is almost certainly s/n 1155-84, N6258X.
While owned by Jerry W Rodgers and PG&E Inc., this had Lycoming
TIO-540-J2B(D) 350hp engines with Hartzell HC-C4YR-2UF/FC6660 4-blade
propellers, signed-off as installed on August 23rd 1995.
These propellers are of 69.75 in. diameter, vs. the usual 80 in. of the
standard 500A props.
Must make for a quieter cabin, unless the increase in fuselage/prop
clearance is eaten away by an extra blade being involved.
There were Experimental - Market Survey Certificates issued on March
14th 1997 and June 11th 1997, before one in the Standard - Normal
category was issued on October 7th 1997.
Jerry kindly flew me from Nashville to Oklahoma City in this Commander
after the Fly-In in June 1997. He had also attended the Fly-In held at
San Antonio the previous year.
I think there's now an STC for this, SA5969NM, covering the 500B, 500U &
500S.
Model 500S serial numbers 3155, 3255 & 3319 have also had this engine
installed.
Model 500B serial numbers 999-30 and 1525-187 have had Lycoming
TIO-540-AE2A(MC) 350hp engines with Hartzell HC-C3YR-2UF/FC8468 or
FC8468-6 propellers installed. This enables a Gross weight increase to
7,200lb under STC SA01212SE.
I would really like to get some performance figures for Commanders with
these two engines.
Colemill Commanders
The 500A can be modified to a Colemill "Super 300" under STCs SA340SO
and SA366SO. These also approve a GW increase from 6,000lb to 6,530lb.
(Other 500A Models can have a GW increase from 6,000lb to 6,250lb if
Service Change No. 50 is accomplished.)
Of the 99 examples built of the 500A, at least 21 have been converted to
500B and 31 modified to Colemill "Super 300".
Additionally, the first of these 99 was converted to the first Model
680F. (s/n 500A-871-1 to 680F-871-1).
The Colemill conversion replaces the Continental IO-470-M 260hp engines
with Continental IO-520-E 300hp engines.
The original Hartzell HC-A2XF-2B/8433-4 propellers are also replaced,
with Hartzell EHC-A3VF-2B/V7636D.
Again, some performance feed-back for the Colemill examples will be
welcome.
Very Best Regards,
Barry
----- Original Message -----
From: "nico css" <nico@cybersuperstore.com>
Sent: Saturday, August 18, 2007 5:13 AM
Subject: RE: Commander-List: 500A IO-550 Conversion
<nico@cybersuperstore.com>
|
| Very interesting, Mike.
| If you look on the TCFG website (www.aerocommander.com) click on
Aircraft
| Models > Piston Twins > 500 A Colemill, you will see that I posted a
picture
| of what I believed at the time to be of a 500A Colemill. The specs,
however,
| are of a straight 500A because I had nothing on the Colemill.
| You will also see that there are some pictures of a 500B Merlyn with
its
| four-blade props and all. The specs on the Merlyn page are of a
straight
| 500B because I have nothing on the Merlyn either. (Does anyone have
specs
| and history on these models?)
| Do you know whether what I have on the website are genuine Colemill
and
| Merlyn mods or are they experimental aircraft? Also, do you know how
the
| Merlyn would stack up against the Colemill, in your opinion?
| Thanks
| Nico
|
| -----Original Message-----
| From: owner-commander-list-server@matronics.com
| [mailto:owner-commander-list-server@matronics.com] On Behalf Of mike
floyd
| Sent: Friday, August 17, 2007 7:09 PM
| To: Commander-List@matronics.com
| Subject: Commander-List: 500A IO-550 Conversion
|
<floydgm@hotmail.com>
|
| Merlyn Products currently has an IO-550 STC project in the works for
the
| 500A. Rumor has it anyway.
|
| Mike
| Northern Commanders LLC
|
| _________________________________________________________________
| Find a local pizza place, movie theater, and more..then map the best
route!
|
http://maps.live.com/default.aspx?v=2&ss=yp.bars~yp.pizza~yp.movie%20
theater
|
&cp=42.358996~-71.056691&style=r&lvl=13&tilt=-90&dir=0&alt=-1
000&scene-060
| 7&encType=1&FORM=MGAC01
|
|
|
|
Message 3
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| Subject: | 500A IO-550 Conversion |
Mike,
I visited Merlyn's website and found many interesting things, which answered
some of my questions. I am going to contact these folks for more information
and permission to publish some of their material on our website.
It appears as if these STC's are existing and flying mods. Perhaps if Bilbo
had known about these, he could have had his 500A dressed up in one of
these.
Thanks for introducing me to them.
Nico
-----Original Message-----
From: owner-commander-list-server@matronics.com
[mailto:owner-commander-list-server@matronics.com] On Behalf Of mike floyd
Sent: Friday, August 17, 2007 9:35 PM
Subject: RE: Commander-List: 500A IO-550 Conversion
I do not know the answers to all of your questions but here is the website I
have found:
http://www.merlynproducts.com/commander.html
I am in Spokane right now and will find out on Monday what Merlyn is doing.
Mike
Northern Commanders LLC
_________________________________________________________________
Find a local pizza place, movie theater, and more..then map the best route!
http://maps.live.com/default.aspx?v=2&ss=yp.bars~yp.pizza~yp.movie%20theater
&cp=42.358996~-71.056691&style=r&lvl=13&tilt=-90&dir=0&alt=-1000&scene-060
7&encType=1&FORM=MGAC01
Message 4
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| Subject: | 500A IO-550 Conversion |
Thanks, Barry. There's a lot of useful information from your bunker of
Commander intelligence about these products. I would like to incorporate
that into the website, with your permission.
I posted my reply to Mike Floyd before I read your email.
Thanks
Nico
_____
From: owner-commander-list-server@matronics.com
[mailto:owner-commander-list-server@matronics.com] On Behalf Of Barry
Collman
Sent: Saturday, August 18, 2007 5:27 AM
Subject: Re: Commander-List: 500A IO-550 Conversion
Hi Nico,
By clicking on "Aircraft Models > Piston Twins > 500A Colemill", I couldn't
find a photo of the Colemill 500A (Colemill Super 300), but did find photos
of the Merlyn 500B. (Aircraft Models > Piston Twins > 500B Merlyn).
Let me know the registration of the Colemill 500A and I'll check it out.
Merlyn Commanders
The Merlyn 500B pictured is almost certainly s/n 1155-84, N6258X.
While owned by Jerry W Rodgers and PG&E Inc., this had Lycoming
TIO-540-J2B(D) 350hp engines with Hartzell HC-C4YR-2UF/FC6660 4-blade
propellers, signed-off as installed on August 23rd 1995.
These propellers are of 69.75 in. diameter, vs. the usual 80 in. of the
standard 500A props.
Must make for a quieter cabin, unless the increase in fuselage/prop
clearance is eaten away by an extra blade being involved.
There were Experimental - Market Survey Certificates issued on March 14th
1997 and June 11th 1997, before one in the Standard - Normal category was
issued on October 7th 1997.
Jerry kindly flew me from Nashville to Oklahoma City in this Commander after
the Fly-In in June 1997. He had also attended the Fly-In held at San Antonio
the previous year.
I think there's now an STC for this, SA5969NM, covering the 500B, 500U &
500S.
Model 500S serial numbers 3155, 3255 & 3319 have also had this engine
installed.
Model 500B serial numbers 999-30 and 1525-187 have had Lycoming
TIO-540-AE2A(MC) 350hp engines with Hartzell HC-C3YR-2UF/FC8468 or FC8468-6
propellers installed. This enables a Gross weight increase to 7,200lb under
STC SA01212SE.
I would really like to get some performance figures for Commanders with
these two engines.
Colemill Commanders
The 500A can be modified to a Colemill "Super 300" under STCs SA340SO and
SA366SO. These also approve a GW increase from 6,000lb to 6,530lb.
(Other 500A Models can have a GW increase from 6,000lb to 6,250lb if Service
Change No. 50 is accomplished.)
Of the 99 examples built of the 500A, at least 21 have been converted to
500B and 31 modified to Colemill "Super 300".
Additionally, the first of these 99 was converted to the first Model 680F.
(s/n 500A-871-1 to 680F-871-1).
The Colemill conversion replaces the Continental IO-470-M 260hp engines with
Continental IO-520-E 300hp engines.
The original Hartzell HC-A2XF-2B/8433-4 propellers are also replaced, with
Hartzell EHC-A3VF-2B/V7636D.
Again, some performance feed-back for the Colemill examples will be welcome.
Very Best Regards,
Barry
----- Original Message -----
From: "nico css" < <mailto:nico@cybersuperstore.com>
nico@cybersuperstore.com>
Sent: Saturday, August 18, 2007 5:13 AM
Subject: RE: Commander-List: 500A IO-550 Conversion
<mailto:nico@cybersuperstore.com> nico@cybersuperstore.com>
|
| Very interesting, Mike.
| If you look on the TCFG website ( <http://www.aerocommander.com>
www.aerocommander.com) click on Aircraft
| Models > Piston Twins > 500 A Colemill, you will see that I posted a
picture
| of what I believed at the time to be of a 500A Colemill. The specs,
however,
| are of a straight 500A because I had nothing on the Colemill.
| You will also see that there are some pictures of a 500B Merlyn with its
| four-blade props and all. The specs on the Merlyn page are of a straight
| 500B because I have nothing on the Merlyn either. (Does anyone have specs
| and history on these models?)
| Do you know whether what I have on the website are genuine Colemill and
| Merlyn mods or are they experimental aircraft? Also, do you know how the
| Merlyn would stack up against the Colemill, in your opinion?
| Thanks
| Nico
|
| -----Original Message-----
| From: <mailto:owner-commander-list-server@matronics.com>
owner-commander-list-server@matronics.com
| [mailto:owner-commander-list-server@matronics.com] On Behalf Of mike floyd
| Sent: Friday, August 17, 2007 7:09 PM
| To: <mailto:Commander-List@matronics.com> Commander-List@matronics.com
| Subject: Commander-List: 500A IO-550 Conversion
|
<mailto:floydgm@hotmail.com> floydgm@hotmail.com>
|
| Merlyn Products currently has an IO-550 STC project in the works for the
| 500A. Rumor has it anyway.
|
| Mike
| Northern Commanders LLC
|
| _________________________________________________________________
| Find a local pizza place, movie theater, and more..then map the best
route!
|
<http://maps.live.com/default.aspx?v=2&ss=yp.bars~yp.pizza~yp.movie%20theate
r>
http://maps.live.com/default.aspx?v=2&ss=yp.bars~yp.pizza~yp.movie%20theater
|
&cp=42.358996~-71.056691&style=r&lvl=13&tilt=-90&dir=0&alt=-1000&scene-060
| 7&encType=1&FORM=MGAC01
|
| ==========
| Commander-List browse
| Archive and much
href="http://www.matronics.com/Navigator?Commander-List">http://www.matronic
s.com/Navigator?Commander-List
| ==========
| bsp; available via
href="http://forums.matronics.com">http://forums.matronics.com
| ===========
Message 5
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|
| Subject: | Re: 500A IO-550 Conversion |
Hi Nico,
Permission granted - no problem!
Best Regards,
Barry
----- Original Message -----
From: nico css
To: commander-list@matronics.com
Sent: Saturday, August 18, 2007 3:10 PM
Subject: RE: Commander-List: 500A IO-550 Conversion
Thanks, Barry. There's a lot of useful information from your bunker of
Commander intelligence about these products. I would like to incorporate
that into the website, with your permission.
I posted my reply to Mike Floyd before I read your email.
Thanks
Nico
-------------------------------------------------------------------------
-----
From: owner-commander-list-server@matronics.com
[mailto:owner-commander-list-server@matronics.com] On Behalf Of Barry
Collman
Sent: Saturday, August 18, 2007 5:27 AM
To: commander-list@matronics.com
Subject: Re: Commander-List: 500A IO-550 Conversion
Hi Nico,
By clicking on "Aircraft Models > Piston Twins > 500A Colemill", I
couldn't find a photo of the Colemill 500A (Colemill Super 300), but did
find photos of the Merlyn 500B. (Aircraft Models > Piston Twins > 500B
Merlyn).
Let me know the registration of the Colemill 500A and I'll check it
out.
Merlyn Commanders
The Merlyn 500B pictured is almost certainly s/n 1155-84, N6258X.
While owned by Jerry W Rodgers and PG&E Inc., this had Lycoming
TIO-540-J2B(D) 350hp engines with Hartzell HC-C4YR-2UF/FC6660 4-blade
propellers, signed-off as installed on August 23rd 1995.
These propellers are of 69.75 in. diameter, vs. the usual 80 in. of
the standard 500A props.
Must make for a quieter cabin, unless the increase in fuselage/prop
clearance is eaten away by an extra blade being involved.
There were Experimental - Market Survey Certificates issued on March
14th 1997 and June 11th 1997, before one in the Standard - Normal
category was issued on October 7th 1997.
Jerry kindly flew me from Nashville to Oklahoma City in this Commander
after the Fly-In in June 1997. He had also attended the Fly-In held at
San Antonio the previous year.
I think there's now an STC for this, SA5969NM, covering the 500B, 500U
& 500S.
Model 500S serial numbers 3155, 3255 & 3319 have also had this engine
installed.
Model 500B serial numbers 999-30 and 1525-187 have had Lycoming
TIO-540-AE2A(MC) 350hp engines with Hartzell HC-C3YR-2UF/FC8468 or
FC8468-6 propellers installed. This enables a Gross weight increase to
7,200lb under STC SA01212SE.
I would really like to get some performance figures for Commanders
with these two engines.
Colemill Commanders
The 500A can be modified to a Colemill "Super 300" under STCs SA340SO
and SA366SO. These also approve a GW increase from 6,000lb to 6,530lb.
(Other 500A Models can have a GW increase from 6,000lb to 6,250lb if
Service Change No. 50 is accomplished.)
Of the 99 examples built of the 500A, at least 21 have been converted
to 500B and 31 modified to Colemill "Super 300".
Additionally, the first of these 99 was converted to the first Model
680F. (s/n 500A-871-1 to 680F-871-1).
The Colemill conversion replaces the Continental IO-470-M 260hp
engines with Continental IO-520-E 300hp engines.
The original Hartzell HC-A2XF-2B/8433-4 propellers are also replaced,
with Hartzell EHC-A3VF-2B/V7636D.
Again, some performance feed-back for the Colemill examples will be
welcome.
Very Best Regards,
Barry
----- Original Message -----
From: "nico css" <nico@cybersuperstore.com>
To: <commander-list@matronics.com>
Sent: Saturday, August 18, 2007 5:13 AM
Subject: RE: Commander-List: 500A IO-550 Conversion
<nico@cybersuperstore.com>
|
| Very interesting, Mike.
| If you look on the TCFG website (www.aerocommander.com) click on
Aircraft
| Models > Piston Twins > 500 A Colemill, you will see that I posted a
picture
| of what I believed at the time to be of a 500A Colemill. The specs,
however,
| are of a straight 500A because I had nothing on the Colemill.
| You will also see that there are some pictures of a 500B Merlyn with
its
| four-blade props and all. The specs on the Merlyn page are of a
straight
| 500B because I have nothing on the Merlyn either. (Does anyone have
specs
| and history on these models?)
| Do you know whether what I have on the website are genuine Colemill
and
| Merlyn mods or are they experimental aircraft? Also, do you know how
the
| Merlyn would stack up against the Colemill, in your opinion?
| Thanks
| Nico
|
| -----Original Message-----
| From: owner-commander-list-server@matronics.com
| [mailto:owner-commander-list-server@matronics.com] On Behalf Of mike
floyd
| Sent: Friday, August 17, 2007 7:09 PM
| To: Commander-List@matronics.com
| Subject: Commander-List: 500A IO-550 Conversion
|
<floydgm@hotmail.com>
|
| Merlyn Products currently has an IO-550 STC project in the works for
the
| 500A. Rumor has it anyway.
|
| Mike
| Northern Commanders LLC
|
| _________________________________________________________________
| Find a local pizza place, movie theater, and more..then map the best
route!
|
http://maps.live.com/default.aspx?v=2&ss=yp.bars~yp.pizza~yp.movie%20
theater
|
&cp=42.358996~-71.056691&style=r&lvl=13&tilt=-90&dir=0&alt=-1
000&scene-060
| 7&encType=1&FORM=MGAC01
|
| ==========
| Commander-List browse
| Archive and much
href="http://www.matronics.com/Navigator?Commander-List">http://www.mat
ronics.com/Navigator?Commander-List
| ==========
| bsp; available via
href="http://forums.matronics.com">http://forums.matronics.com
| ===========
Message 6
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|
| Subject: | Random thoughts on Merlyn Products conversions |
Merlyn products makes some great conversions. There are a couple being
flown around here, including a 320-hp converted 500B and one of the
original 350-hp 500B's with the 4-blade props. I've flown in both, and
have PIC time in the 4-blade version. The 4-blade makes a very different
sound than my stock 500B (of course, the props spin at 2,700 on takeoff,
I think) and its efficiency really doesn't shine until you're up in the
teens. The 320hp conversion feels like a stock 500B, except you can make
48" of MP on takeoff, like the 350hp. Being a low-compression engine, it
also doesn't really show you what it's got until you're up over 10,000'.
I think I might prefer the Merlyn 300hp conversion, which is a
turbonormalized application (like my rayjays) on the IO-540-M1C5
(wide-deck) engines. This would give me most of the zip of the 320hp up
high, but between 3,500 - 10,000, where I do most of my "local" flying,
I wouldn't suffer any of the inefficiencies (think fuel consumption)
that the boosted engines would. Plus, I still would get a gross weight
increase.
Hugh @ Merlyn really knows what he's doing. His single-turbo/mechanical
wastegate is far, far better than the rayjay setup that I have in my
airplane. You just push the throttle levers to the MP you want, whenever
you want it. It also has a very nice blow-off valve to prevent you from
overboosting the engine. All this in a package that is MUCH simpler than
the rayjays it replaces; there's tons of room in the aft nacelle to
still get at accessories & oil filters, unlike in my airplane with all
the rayjay plumbing in the way.
At some point I'm sure I'll buy one of Hugh's STC's for my airplane,
although, with fuel the way it is, I'd like to see a diesel (jet-A)
option for our airplanes. Maybe the Century 4.0 engine might be a
potential retrofit, although I've heard that neither Century nor Twin
Commander have expressed *any* interest whatsoever in supporting an STC
effort...
/J
nico css wrote:
>
> Mike,
> I visited Merlyn's website and found many interesting things, which answered
> some of my questions. I am going to contact these folks for more information
> and permission to publish some of their material on our website.
> It appears as if these STC's are existing and flying mods. Perhaps if Bilbo
> had known about these, he could have had his 500A dressed up in one of
> these.
> Thanks for introducing me to them.
> Nico
>
>
> -----Original Message-----
> From: owner-commander-list-server@matronics.com
> [mailto:owner-commander-list-server@matronics.com] On Behalf Of mike floyd
> Sent: Friday, August 17, 2007 9:35 PM
> To: commander-list@matronics.com
> Subject: RE: Commander-List: 500A IO-550 Conversion
>
>
> I do not know the answers to all of your questions but here is the website I
>
> have found:
>
> http://www.merlynproducts.com/commander.html
>
> I am in Spokane right now and will find out on Monday what Merlyn is doing.
>
> Mike
> Northern Commanders LLC
>
> _________________________________________________________________
> Find a local pizza place, movie theater, and more..then map the best route!
> http://maps.live.com/default.aspx?v=2&ss=yp.bars~yp.pizza~yp.movie%20theater
> &cp=42.358996~-71.056691&style=r&lvl=13&tilt=-90&dir=0&alt=-1000&scene-060
> 7&encType=1&FORM=MGAC01
>
>
> __________ NOD32 2469 (20070818) Information __________
>
>
>
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