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B and C Model PA30

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B and C Model PA30

Postby Billy Matthews » Tue Apr 26, 2011 3:55 pm

What are the most notable differences between the PA30 B and C models? Is one better than the other? :?:
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Re: B and C Model PA30

Postby Kristin Winter » Wed Apr 27, 2011 3:14 am

The two main differences are that the C models got a more modern instrument panel with rocker switches and the standard T configuration for the flight instruments. The other difference is a thicker horizontal stabilizer which is doubtless stronger and may help in the landings, but probably costs a knot or two.

 

I limited my search to the C's and the PA-39's while favoring the C. I wanted upgraded panel as I thought, and still think, that they look a bit more modern which might help on resale, and I like it better. I preferred the non-CR as they perform slight better and some of the CR components are a bit rarer and sometimes pricier.

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Re: B and C Model PA30

Postby N8632Y » Wed Apr 27, 2011 1:10 pm

I know the C model has direct access to the baggage compartment, in case you get locked in via the front door, then you can access the baggage door and get out,
how do i know?
I think the B does not have direct access, and their baggage door is on the right side, the C is on the left.
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Re: B and C Model PA30

Postby Zach Grant L1011jock » Wed Apr 27, 2011 2:59 pm

Close Steve, but not quite (don't you hate that...:-)). All of the 6 window aircraft have the baggage door on the aircraft left, and also have direct access to the baggage compartment, bucket back seats, battery in the nose, and the baggage door doubles as an emergency exit, openable from the inside regardless of weather it is locked on the outside or not. Only the 63-65 models were 4 window birds, and their interior reflected the same layout as the 4 window singles of the day.

 

Realy, in todays market, there is not much difference between a B and a C if the B has been converted to Alternators and has an upgraded panel with a std T layout. Yes the C has the thicker stab, but I haven't noticed any difference in flight between the two, except possibly a few knots in speed, but that is hard to track as there are so many airframe variables. The only thing I did notice is that ice doesn't build as fast on the larger radius tail feathers, but I never had controllability issues with the thin tail in ice either, even though it looked ugly!

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Re: B and C Model PA30

Postby 9089P » Wed Apr 27, 2011 6:09 pm

Hi Zach,

 

Some might argue that you would be better off buying a "B" even if it had generators as then you could convert to Plane Power alternators rather than have the Piper system that was put in the "C".

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Re: B and C Model PA30

Postby Zach Grant L1011jock » Wed Apr 27, 2011 6:19 pm

Don,
Even if you get a C, that option is still available. Kristin Winter just converted her C to the Plane Power system. Also, the InterAv system is also a very good option for the "A"s and "B"s, and should not be over looked when making the conversion decision.
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Re: B and C Model PA30

Postby Kristin Winter » Wed Apr 27, 2011 8:49 pm

Zach,

 

Is the Interav system paralleling system or does it use the main/aux voltage regulation system that Piper was using in the late 60's and early 70's.

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Re: B and C Model PA30

Postby Zach Grant L1011jock » Wed Apr 27, 2011 10:00 pm

Kris,
It is a paralleling system. Two separate voltage regs with automatic switching and sharing.
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Re: B and C Model PA30

Postby Billy Matthews » Mon May 09, 2011 5:13 pm

Thanks for all the reply's :)
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Re: B and C Model PA30

Postby SLIMDREDGER » Tue May 10, 2011 7:26 pm

B & C model PA30 comments:

 

I like the right side location of the baggage door on the earlly models as it's easy to load and unload items without walking around the airplane. This ease also encourages loading in the back where the aft weight helps move the cg to a more efficient position.

I also like the enclosed baggage compartment that allows storage of items in the airplane where they cannot be seen and tempt a thief when the airplane is tied down overnight.

I have not flown a B or C model, but when I sit in one I sense the added height of the instrument panel somewhat limits the forward visibility.

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Re: B and C Model PA30

Postby N8632Y » Tue May 10, 2011 7:45 pm

Al,
Some excellent comments on the baggage compartment door being on the right side, I never thought of it.
I still like having access to the back in flight, and an easy emerg. exit.
As far as seeing over the panel, in climbout, i fly faster, less pitch, so vis has never been a problem and i'm 5'9
and in cruise, the plane gets on step, and has a small angle of attack, so i see rather well, much better than in a mooney, cessna....
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Re: B and C Model PA30

Postby N3322G » Tue May 10, 2011 11:59 pm

The 39 is very close to a PA30 C and at 5'4" it has always been a challenge for me to see over the instrument panel on climb out in any aircraft but once I get it over 105 MPH best SE rate of climb on the twin, I drop the nose to facilitate visibility - after 41 years, it continues to work well for me.
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Re: B and C Model PA30

Postby JimR » Wed May 25, 2011 11:07 pm

I think I read somewhere that the C has a slightly longer fuselage than earlier models, like 2 or 3 inches.
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Re: B and C Model PA30

Postby Zach Grant L1011jock » Thu May 26, 2011 12:10 am

You did, because some people just don't know what they are talking about, let alone know how to check simple facts. All Twincos are the same length (those with the radar nose mod are about 2 inches longer, and Miller noses are longer yet, but all non modified birds are the same, and certainly do not have longer empenages or moved verticle fins). Reference PA-30 TCDS

 

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Re: B and C Model PA30

Postby N3322G » Thu May 26, 2011 1:12 am

Jim,

 

it might look longer because of the additional window

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Re: B and C Model PA30

Postby JimR » Fri May 27, 2011 3:15 am

Thanks Pat. The C's look a little bit longer to me and that extra window can explain it. Either model would be good. I got my multi rating a few years ago in a 1964 twinco and loved that plane, which is how I got interested in comanches in the first place. -Jim
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Re: B and C Model PA30

Postby N3322G » Fri May 27, 2011 2:02 pm

Jim,

It is so much fun to chat with other pilots on the Twin Comanche - back in 2008 I was going to my 30th high school reunion and wondered if husband would enjoy it at all - I asked one of my friends if she was bringing her husband and she said yes - he had planned his flight schedule around it - then I knew husband would have someone to talk with ... yes, he got his multi in a twin Comanche - so you know both guys were happy the entire evening.

Frequently it is the smallest plane on the ramp but it still looks fabulous - like the sport cars parked behind the 'lumbering' SUVs.

Pat

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Re: B and C Model PA30

Postby Billy Matthews » Thu Jun 02, 2011 12:58 pm

I just traded my 69 C for a 66 B and cash, I Flew the (B) back from KC with IFR everywhere and the plane was wonderful. The only issue I had was the landings, each time I landed there were heavy crosswinds and as I touched down the plane wanted to bounce it was a lot different than my (C) model. The 66' has the standard nose wheel and there is 4 1/4" gear gap" the 69 has the small nose wheel and there is 2 3/4" gear gap. Could that be the reason for the dolphin dance. I believe I will like this plane even more than my 69" the trip made me excitied about flying again I guess I just needed somewhere to go! :D

What I mean by Gear Gap is how much of the Crome Cylinder is Shown:

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Re: B and C Model PA30

Postby Zach Grant L1011jock » Thu Jun 02, 2011 3:08 pm

More than likely, you are just not used to the new airplane. Each has distinct personalities. Cg makes a big difference in the landing feel as does gap seals and wing root fairings. The biggest factor is usually the difference in the airspeed indicator. If your old plane read fast, and you are flying the new one at the same indicated, then you will be too fast. As for the amount of strut showing, the difference you describe is not significant enough to make a real difference.

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Re: B and C Model PA30

Postby Billy Matthews » Thu Jun 02, 2011 8:43 pm

Thanks Zach this one has the wing root fairings, I guess I will need to go practice wooo hoo :D :D . Do you think it would be OK to let the nose down a little and leave the mains at the level there at now?

Thanks
Billy

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Re: B and C Model PA30

Postby MULEFLY » Sat Jun 04, 2011 4:35 pm

I like the Bs & Cs because it it easier to put a set of golf clubs and bag in them!
:-)

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Re: B and C Model PA30

Postby TurboPA30 » Sun Jun 26, 2011 3:39 pm

 
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Re: B and C Model PA30

Postby N3322G » Sun Jun 26, 2011 5:07 pm

Robert,

We have an adjustable seat for PIC that is an original install. It helps.

Pat

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Re: B and C Model PA30

Postby tomburke1 » Sat Jul 30, 2011 3:14 am

The C model single had a prop extention and as I remember it was longer then the B Model single by about 5 inches.. am I wrong?
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Re: B and C Model PA30

Postby 9089P » Sat Jul 30, 2011 5:56 am

Hi Tom,

From the firewall to the tail I believe all singles are the same length. The C model single does have a prop extension and consequently a longer cowl which is primarily in the shark nose. So it is longer but only from the firewall forward.

Good luck, Don

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Re: B and C Model PA30

Postby Edward Pencosky » Thu Feb 09, 2012 12:33 am

 
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Re: B and C Model PA30

Postby 9089P » Thu Feb 09, 2012 6:48 am

Actually, the increase is 100# over the B model and was obtained by moving the prop forward (as I recall 10") which in turn moved the cg forward allowing the extra 100 #.

Don

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Re: B and C Model PA30

Postby David Pyle » Thu Feb 09, 2012 3:55 pm

I note that this discussion was about PA30 and I am answering the difference between PA24-260 B and C about which I wrote an article for the Comanche FLYER. If anyone would like an email copy of the article send me your email request. It is correct that single engine Comanches are the same length except for the nose extension with the 1969-72 260C. I believe that the PA30/39's are similar to the singles with interior changes following the singles by model year. Dave Pyle • dap8@comcast.net
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