Today's Message Index:
----------------------
1. 12:26 AM - Re: N500FV (Barshalom@aol.com)
2. 02:30 AM - Re: N500FV (W J R HAMILTON)
3. 07:13 AM - Re: 520 manual (MOEMILLS@aol.com)
4. 07:26 AM - Re: N500FV (Bill Bow)
5. 08:55 AM - Re: N500FV (YOURTCFG@aol.com)
6. 10:45 AM - Commander 500A vs. 500B (Barry Collman)
7. 01:44 PM - Re: N500FV (Bill Bow)
8. 03:52 PM - Re: N500FV (css)
9. 04:27 PM - Re: Commander 500A vs. 500B (Tom Fisher)
10. 05:03 PM - 4 blade prop (CloudCraft@aol.com)
11. 05:18 PM - 4 Blade Props, redux (CloudCraft@aol.com)
12. 05:56 PM - Re: 4 Blade Props, redux (Chris Schuermann)
13. 06:17 PM - Re: N500FV (YOURTCFG@aol.com)
14. 08:58 PM - Re:Colemill Conversion (CloudCraft@aol.com)
15. 09:16 PM - Re: 4 Blade Props, redux (Tom Fisher)
16. 09:28 PM - Dang...lost another fuel cap. (Randy Dettmer, AIA)
Message 1
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--> Commander-List message posted by: Barshalom@aol.com
Capt Jim Bob,
For us youngsters who don't remember, what;\'s the real difference between a
500A and 500B other than Continental 300hp vs. Lycoming 295hp?
Bill in TN
N69PT (500B)
Message 2
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--> Commander-List message posted by: W J R HAMILTON <wjrhamilton@optusnet.com.au>
Bill,
The IO-470Ms in a 500A are only 265hp, I would love to have the extra, but
need to do the IO-520 for that.
Cheers,
Bill Hamilton.
At 19:26 3/02/2004, you wrote:
>--> Commander-List message posted by: Barshalom@aol.com
>
>Capt Jim Bob,
>
>For us youngsters who don't remember, what;\'s the real difference between a
>500A and 500B other than Continental 300hp vs. Lycoming 295hp?
>
>Bill in TN
>N69PT (500B)
>
>
COMMUNICATIONS CHANGES: All Recipients Please Note.
The new email address for all Glenalmond Group Companies, W.J.R.Hamilton,
Fighter Flights Internet Services and Warbirds.Net is:
<wjrhamilton@optusnet.com.au>
<fighterf@ozemail.com.au> will remain valid for about three months.
All phone numbers remain unchanged, but changes will take place in about
three months, the date will be notified.
Message 3
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--> Commander-List message posted by: MOEMILLS@aol.com
JB
Had no idea that you were putting together a complete collection of
maintenance manuals. I have one for a 720 Alticruser (semi rare?) you can have
if you
don't already have it.
Moe
Message 4
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--> Commander-List message posted by: "Bill Bow" <bowing74@earthlink.net>
I think it is 260hp, not 265) and 2 bade props. At least that is what mine
is.
bilbo
----- Original Message -----
From: "W J R HAMILTON" <wjrhamilton@optusnet.com.au>
Subject: Re: Commander-List: N500FV
> --> Commander-List message posted by: W J R HAMILTON
<wjrhamilton@optusnet.com.au>
>
> Bill,
> The IO-470Ms in a 500A are only 265hp, I would love to have the extra, but
> need to do the IO-520 for that.
> Cheers,
> Bill Hamilton.
>
>
> At 19:26 3/02/2004, you wrote:
> >--> Commander-List message posted by: Barshalom@aol.com
> >
> >Capt Jim Bob,
> >
> >For us youngsters who don't remember, what;\'s the real difference
between a
> >500A and 500B other than Continental 300hp vs. Lycoming 295hp?
> >
> >Bill in TN
> >N69PT (500B)
> >
> >
>
>
> COMMUNICATIONS CHANGES: All Recipients Please Note.
> The new email address for all Glenalmond Group Companies, W.J.R.Hamilton,
> Fighter Flights Internet Services and Warbirds.Net is:
> <wjrhamilton@optusnet.com.au>
> <fighterf@ozemail.com.au> will remain valid for about three months.
> All phone numbers remain unchanged, but changes will take place in about
> three months, the date will be notified.
>
>
Message 5
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--> Commander-List message posted by: YOURTCFG@aol.com
The 500A had IO-470 with 260hp. The are great engines but had two blade
props and did look as saucy. The lycomings were always more sought after,
deserved or not. Most 500A were converted to 300hp and there blades but there
are
still a few totally originals 500As around. The airframes were identical. jb
Message 6
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| Subject: | Commander 500A vs. 500B |
MAILER-TRACE: 0
--> Commander-List message posted by: "Barry Collman" <barry.collman@air-britain.co.uk>
Hi All,
In response to the request from 'Wng Commander' Gordon (Hi Keith!), out of a
total of 99 Models 500A built, 21 were converted to Model 500B and a further 31
were modified to Colemill "Super 300".
Of these, I think 20 of the 21 converted were accomplished by the Service Center
at Bethany, under Commander Engineering Report No. G10-134, the earliest
signed-off as done on October 13th 1962 and the final one on November 9th 1966.
The other one was effected under an STC (SA459EA), by Southern Ohio Aviation
Co., at West Carrollton, Ohio, on December 13th 1966.
Most of the Colemill modifications were effected between April 1966 and October
1979, with a solitary one accomplished in June 1995. The modification included
an increase in MTOW from 6,000lb to 6530lb. Service Change No. 50 gave an MTOW
of 6200lb on a stock 500A. The Colemill STCs were Nos. SA340SO and SA366SO.
The ex-factory 500A had 2 x Continental IO-470-M of 260hp each, with 2-blade
Hartzell HC-A2XF-2B / 8433 props (80" diameter).
The Colemill "Super 300" had 2 x Continental IO-520-E of 300hp each, with
3-blade Hartzell EHC-A3VF-2B / 7636D props (76.625" diameter).
The ex-factory 500B had 2 x Lycoming IO-540-B1A5 (later -B1C5 & -E1A5) of 290hp
each, with 3-blade Hartzell HC-A3XK-2 series or HC-A3VK-2 series props., and the
MTOW is 6750lb.
Over the years, other props have been installed.
I think that's answered the questions. If I've omitted anything.........please
shout!
Kindest Regards,
Barry C.
Message 7
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--> Commander-List message posted by: "Bill Bow" <bowing74@earthlink.net>
"Saucity" is in the eye of the beholder. Once the engine is started, one
has to be very good at math to tell 2 from 3 blades. My flat nacelles look
"saucy" ALL the time.
bilbo
----- Original Message -----
From: <YOURTCFG@aol.com>
Subject: Re: Commander-List: N500FV
> --> Commander-List message posted by: YOURTCFG@aol.com
>
> The 500A had IO-470 with 260hp. The are great engines but had two blade
> props and did look as saucy. The lycomings were always more sought after,
> deserved or not. Most 500A were converted to 300hp and there blades but
there are
> still a few totally originals 500As around. The airframes were identical.
jb
>
>
Message 8
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--> Commander-List message posted by: "css" <nico@cybersuperstore.com>
I could have sworn that I could hear the difference. But you did infer that
one cannot 'see' whether it's two or three, no? If that's so, you are right.
Nico
----- Original Message -----
From: "Bill Bow" <bowing74@earthlink.net>
Subject: Re: Commander-List: N500FV
> --> Commander-List message posted by: "Bill Bow" <bowing74@earthlink.net>
>
> "Saucity" is in the eye of the beholder. Once the engine is started, one
> has to be very good at math to tell 2 from 3 blades. My flat nacelles
look
> "saucy" ALL the time.
>
> bilbo
> ----- Original Message -----
> From: <YOURTCFG@aol.com>
> To: <commander-list@matronics.com>
> Subject: Re: Commander-List: N500FV
>
>
> > --> Commander-List message posted by: YOURTCFG@aol.com
> >
> > The 500A had IO-470 with 260hp. The are great engines but had two blade
> > props and did look as saucy. The lycomings were always more sought
after,
> > deserved or not. Most 500A were converted to 300hp and there blades but
> there are
> > still a few totally originals 500As around. The airframes were
identical.
> jb
> >
> >
>
>
Message 9
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| Subject: | Re: Commander 500A vs. 500B |
--> Commander-List message posted by: "Tom Fisher" <tfisher@commandergroup.bc.ca>
Which conversion involved the four blade propeller?
Tom F.
----- Original Message -----
From: "Barry Collman" <barry.collman@air-britain.co.uk>
Subject: Commander-List: Commander 500A vs. 500B
> --> Commander-List message posted by: "Barry Collman"
<barry.collman@air-britain.co.uk>
>
> Hi All,
>
> In response to the request from 'Wng Commander' Gordon (Hi Keith!), out of
a
> total of 99 Models 500A built, 21 were converted to Model 500B and a
further 31
> were modified to Colemill "Super 300".
>
> Of these, I think 20 of the 21 converted were accomplished by the Service
Center
> at Bethany, under Commander Engineering Report No. G10-134, the earliest
> signed-off as done on October 13th 1962 and the final one on November 9th
1966.
> The other one was effected under an STC (SA459EA), by Southern Ohio
Aviation
> Co., at West Carrollton, Ohio, on December 13th 1966.
>
> Most of the Colemill modifications were effected between April 1966 and
October
> 1979, with a solitary one accomplished in June 1995. The modification
included
> an increase in MTOW from 6,000lb to 6530lb. Service Change No. 50 gave an
MTOW
> of 6200lb on a stock 500A. The Colemill STCs were Nos. SA340SO and
SA366SO.
>
> The ex-factory 500A had 2 x Continental IO-470-M of 260hp each, with
2-blade
> Hartzell HC-A2XF-2B / 8433 props (80" diameter).
>
> The Colemill "Super 300" had 2 x Continental IO-520-E of 300hp each, with
> 3-blade Hartzell EHC-A3VF-2B / 7636D props (76.625" diameter).
>
> The ex-factory 500B had 2 x Lycoming IO-540-B1A5 (later -B1C5 & -E1A5) of
290hp
> each, with 3-blade Hartzell HC-A3XK-2 series or HC-A3VK-2 series props.,
and the
> MTOW is 6750lb.
>
> Over the years, other props have been installed.
>
> I think that's answered the questions. If I've omitted
anything.........please
> shout!
>
> Kindest Regards,
>
> Barry C.
>
>
Message 10
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--> Commander-List message posted by: CloudCraft@aol.com
In a message dated 02/03/04 16:28:18 Pacific Standard Time,
tfisher@commandergroup.bc.ca writes:
Which conversion involved the four blade propeller?
The only 4 blade propellor on a piston Commander so far is the Merlyn
Conversion of the AC-500B.
Wing Commander Gordon
Message 11
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| Subject: | 4 Blade Props, redux |
--> Commander-List message posted by: CloudCraft@aol.com
Tom,
Just to clarify, here's the STC data on the Merlyn Conversion. It's
available for the 500-U and S models as well, although to my knowledge (which is
not
what it used to be) only Bs have been converted.
The first 4 bladed one was owned by Jerry Rogers of Modesto, California
(since sold) who pioneered the 4 blade Hartzell for his mod around 1994 or 5.
STC Number:
SA00169SE
This certificate issued to:
Merlyn Products, Inc
STC Holder's Address:
West 7500 Park Drive
Spokane WA 99204-5726
United States
Description of the Type Design Change:
Install Lycoming IO-540-M1C5 engine and Hartzell HC-C3YR-2UF/FC8468()-6R
propeller.
Application Date:
Status:
Amended, 06/02/2000
Responsible Office:
ANM-100S Seattle Aircraft Certification Office Tel: (425) 917-6400
TC Number -- Make -- Model:
6A1 -- Twin Commander Aircraft Corporation -- 500-B
6A1 -- Twin Commander Aircraft Corporation -- 500-U
6A1 -- Twin Commander Aircraft Corporation -- 500-S
Merlyn Products has a website, but it's not loading up for me.
www.merlynproducts.com
Wing Commander Gordon
Message 12
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| Subject: | Re: 4 Blade Props, redux |
--> Commander-List message posted by: Chris Schuermann <cschuerm@cox.net>
CloudCraft@aol.com wrote:
> Just to clarify, here's the STC data on the Merlyn Conversion.
>
> Description of the Type Design Change:
> Install Lycoming IO-540-M1C5 engine and Hartzell HC-C3YR-2UF/FC8468()-6R
> propeller.
I can't get to the web site either Keith and it's been a long time since
I last looked at it. I _think_ the IO-540-M1C5 is simply a change to
the "wide deck" engine (more modern design which you can still get parts
for - esp cranks). From the same vintage memory bank, I think the
4-blade prop goes with Merlyns TIO-540-J2BD 350hp package (who knows why
I remember engine specifics...).
Since we're talking engines, I have a question. I'm not certain I've
ever looked under the hood of a Colemill converted 500A. Is that an
upstack engine or does the exhaust wrap around back? If it's the
latter, it would make me believe that a downstack Lycoming (like an
IO-540-K series) could be put in. Personal experience and testing shows
that a 300hp Lyc is a measurably stronger engine than a 300hp
Continental and they tend to run 2000 trouble-free hours (no religious
wars please - just something repeatably tested that I'm reporting).
Seems like a very attractive mod to me.
chris
Message 13
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--> Commander-List message posted by: YOURTCFG@aol.com
In a message dated 2/3/2004 1:45:28 PM Pacific Standard Time,
bowing74@earthlink.net writes:
saucy" ALL the time.
AMEN!! jb
Message 14
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| Subject: | Re:Colemill Conversion |
--> Commander-List message posted by: CloudCraft@aol.com
In a message dated 02/03/04 17:57:04 Pacific Standard Time, cschuerm@cox.net
writes:
Is that an
upstack engine or does the exhaust wrap around back?
The Colemill conversion retains the upstack exhaust system; it was a great
upgrade because everything stayed the same, airframe-wise.
Just more power/performance/pay load. That's what upgrades are all about.
Wing Commander Gordon
Message 15
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| Subject: | Re: 4 Blade Props, redux |
--> Commander-List message posted by: "Tom Fisher" <tfisher@commandergroup.bc.ca>
Were many done? and what are the remarks (pros & cons) regarding the Merlyn
conversion?
I hope you are cutting and pasting this data.
Tom F.
----- Original Message -----
From: <CloudCraft@aol.com>
Subject: Commander-List: 4 Blade Props, redux
> --> Commander-List message posted by: CloudCraft@aol.com
>
> Tom,
>
> Just to clarify, here's the STC data on the Merlyn Conversion. It's
> available for the 500-U and S models as well, although to my knowledge
(which is not
> what it used to be) only Bs have been converted.
>
> The first 4 bladed one was owned by Jerry Rogers of Modesto, California
> (since sold) who pioneered the 4 blade Hartzell for his mod around 1994 or
5.
>
> STC Number:
> SA00169SE
>
> This certificate issued to:
> Merlyn Products, Inc
>
> STC Holder's Address:
> West 7500 Park Drive
> Spokane WA 99204-5726
> United States
>
> Description of the Type Design Change:
> Install Lycoming IO-540-M1C5 engine and Hartzell HC-C3YR-2UF/FC8468()-6R
> propeller.
>
> Application Date:
>
>
> Status:
> Amended, 06/02/2000
>
> Responsible Office:
> ANM-100S Seattle Aircraft Certification Office Tel: (425) 917-6400
> TC Number -- Make -- Model:
> 6A1 -- Twin Commander Aircraft Corporation -- 500-B
> 6A1 -- Twin Commander Aircraft Corporation -- 500-U
> 6A1 -- Twin Commander Aircraft Corporation -- 500-S
>
>
> Merlyn Products has a website, but it's not loading up for me.
>
> www.merlynproducts.com
>
> Wing Commander Gordon
>
>
Message 16
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| Subject: | Dang...lost another fuel cap. |
--> Commander-List message posted by: "Randy Dettmer, AIA" <rcdettmer@charter.net>
Anybody have a spare fuel cap for a 680F..?? For the second time, I have discovered
a missing fuel cap (right outboard tank)...probably came loose in flight
due to improper installation by a fuel line person. So, now I guess I will have
to climb up and check all caps after fueling...better safe than sorry.
A new cap runs over $500.00. If anybody has one sitting on a shelf, or can be
parted from another airplane, please let me know.
By the way, the plane sat through a whole night of heavy rain, and the inside flapper
kept all water out of the tank...not a drop in the sump.
Thanks,
Randy Dettmer
680F / N6253X
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