Mailing List flyrotary@lancaironline.net Message #43818
From: Tracy Crook <tracy@rotaryaviation.com>
Sender: <rwstracy@gmail.com>
Subject: Re: [FlyRotary] Re: Comparisons
Date: Fri, 29 Aug 2008 23:42:42 -0400
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Not enough.  There is more than you might think to FWF weight.  Something like 345 - 385 lbs FWF should be in the ball park. For instance,  a CS prop alone is more than 60 lbs.

On Fri, Aug 29, 2008 at 9:47 PM, George Lendich <lendich@optusnet.com.au> wrote:
Thanks Tracy,
I will put this aside for future reference. Do you think as a rule of thumb an additional 60 lbs is too much for everything else.
 
Now can you tell me what the RV6 or 7 allows for firewall forward?
George (down under)
----- Original Message -----
Sent: Saturday, August 30, 2008 11:28 AM
Subject: [FlyRotary] Re: Comparisons

Here are RAW engine weights for a few Lycs.  Note that this is bare bones without starter, alternator or other accessories and oil.   Hope formatting is not too scrambled in cyberspace.
 
Tracy
 
>                     Lycoming
>      Model                  HP      Lbs     BSFC at rated HP

>     O-290-D2C           140      263     0.53
>     O-320-A2B           150      272     0.55
>     O-320-A2C           150      271     0.55
>     O-320-B2C           160      277     0.58
>     O-320-D2A           160      277     0.58
>     O-320-E2A           160      277     0.58
>     IO-320-B1A          160      285     0.56
>     IO-320-C1A          160      294     0.54
>     IO-320-E2A          150      280     0.54
>     O-360-A1D           180      284     0.63
>     O-360-A3A           180      285     0.63
>     IO-360-A1A          200      320     0.63
>     IO-360-B1B          180      295     0.61
>     IMO-360-B1B        225      274     0.82
>     GO-480-B1D         270      432     0.63
>     GO-480-G1D6       295      437     0.68
>     IGO-480-A1B6       295      469     0.63
>     IGSO-480-A1F6     340      498     0.68
>     O-540-A1A5          250      396     0.63
>     O-540-B2B5          235      395     0.59
>     O-540-B4B5          235      395     0.59
>     O-540-B4B5          260      398     0.65
>     IO-540-A1A5         290      437     0.66
>     IO-540-C4B5         250      402     0.62
>     IO-540-D4A5         260      402     0.65
>     IO-540-E1A5         290      437     0.66
>     IO-540-G1A5         290      443     0.65
>     IO-540-J4A5         250      409     0.61



On Fri, Aug 29, 2008 at 7:41 PM, George Lendich <lendich@optusnet.com.au> wrote:
Hello Chaps,
Can anyone give me the firewall weight of the Lycoming or Continental 180 hp engines.
TIA
George (down under)


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