View Full Version : Re: Engine configuration
cavedweller
December 14th 07, 07:53 PM
On Dec 14, 12:45 pm, Alan Baker > wrote:
> In article >,
> clare at snyder.on.ca wrote:
>
>
>
> > On Thu, 13 Dec 2007 18:19:14 GMT, Alan Baker >
> > wrote:
>
> > >In article >,
> > > Michael Henry > wrote:
>
> > >> GTH wrote:
> > >> > Michael Henry a écrit :
>
> > >> >> why isn't the Lycoming O-540 or the Continental O-520 an
> > >> >> inverted V?
>
> > >> > They are derived from opposed engines, and the manufacturers thought
> > >> > easier to retain the same cylinders and cylinder heads as their 4
> > >> > cylinder counterparts.
>
> > >> OK so I just push my question back one generation: why is the O-360 not
> > >> an inverted V?
>
> > >> I'm asking more from a theoretical point of view. What is it that makes
> > >> the opposed configuration more attractive than the V configuration for
> > >> air-cooled engines? Likewise: what is it that makes the V configuration
> > >> more attractive than the opposed configuration for liquid-cooled engines?
>
> > >> There are new aircraft engine designs out there: the Jabiru as an
> > >> air-cooled example and the Orenda as a liquid-cooled example. They
> > >> follow the same pattern that has become the norm.
>
> > >> > There have been a number of aircooled inverted engines in the post WWII
> > >> > period.
>
> > >> ...and in the pre-WWII period! The deHavilland Gipsy Major being a
> > >> notable example.
>
> > >I think one of the factors you're overlooking is vibration.
>
> > >Certain engine configurations have less vibration due to the arrangement
> > >of the reciprocating and revolving components:
>
> > >A 90 degree V-8; a straight-6; ...
>
> > >...and a flat-4.
>
> > >A V-4 would have more vibration than a flat-4.
>
> > Yea, ever drive a Corsair V4? Even with a balance shaft they are not
> > smmoth.
>
> Um, somebody check me, but didn't the Corvair come with only one engine:
> a flat 6?
>
> --
> Alan Baker
> Vancouver, British Columbia
> "If you raise the ceiling four feet, move the fireplace from that wall
> to that wall, you'll still only get the full stereophonic effect if you
> sit in the bottom of that cupboard."
OK...."check" the spelling :)
Alan Baker
December 14th 07, 08:25 PM
In article
>,
cavedweller > wrote:
> On Dec 14, 12:45 pm, Alan Baker > wrote:
> > In article >,
> > clare at snyder.on.ca wrote:
> >
> >
> >
> > > On Thu, 13 Dec 2007 18:19:14 GMT, Alan Baker >
> > > wrote:
> >
> > > >In article >,
> > > > Michael Henry > wrote:
> >
> > > >> GTH wrote:
> > > >> > Michael Henry a écrit :
> >
> > > >> >> why isn't the Lycoming O-540 or the Continental O-520 an
> > > >> >> inverted V?
> >
> > > >> > They are derived from opposed engines, and the manufacturers thought
> > > >> > easier to retain the same cylinders and cylinder heads as their 4
> > > >> > cylinder counterparts.
> >
> > > >> OK so I just push my question back one generation: why is the O-360
> > > >> not
> > > >> an inverted V?
> >
> > > >> I'm asking more from a theoretical point of view. What is it that
> > > >> makes
> > > >> the opposed configuration more attractive than the V configuration for
> > > >> air-cooled engines? Likewise: what is it that makes the V
> > > >> configuration
> > > >> more attractive than the opposed configuration for liquid-cooled
> > > >> engines?
> >
> > > >> There are new aircraft engine designs out there: the Jabiru as an
> > > >> air-cooled example and the Orenda as a liquid-cooled example. They
> > > >> follow the same pattern that has become the norm.
> >
> > > >> > There have been a number of aircooled inverted engines in the post
> > > >> > WWII
> > > >> > period.
> >
> > > >> ...and in the pre-WWII period! The deHavilland Gipsy Major being a
> > > >> notable example.
> >
> > > >I think one of the factors you're overlooking is vibration.
> >
> > > >Certain engine configurations have less vibration due to the arrangement
> > > >of the reciprocating and revolving components:
> >
> > > >A 90 degree V-8; a straight-6; ...
> >
> > > >...and a flat-4.
> >
> > > >A V-4 would have more vibration than a flat-4.
> >
> > > Yea, ever drive a Corsair V4? Even with a balance shaft they are not
> > > smmoth.
> >
> > Um, somebody check me, but didn't the Corvair come with only one engine:
> > a flat 6?
> >
> > --
> > Alan Baker
> > Vancouver, British Columbia
> > "If you raise the ceiling four feet, move the fireplace from that wall
> > to that wall, you'll still only get the full stereophonic effect if you
> > sit in the bottom of that cupboard."
>
> OK...."check" the spelling :)
I'm sorry, but what do you think the spelling has to do with it?
--
Alan Baker
Vancouver, British Columbia
"If you raise the ceiling four feet, move the fireplace from that wall
to that wall, you'll still only get the full stereophonic effect if you
sit in the bottom of that cupboard."
Gig601XLBuilder
December 14th 07, 09:21 PM
Alan Baker wrote:
> In article
> >,
> cavedweller > wrote:
>
>> On Dec 14, 12:45 pm, Alan Baker > wrote:
>>> In article >,
>>> clare at snyder.on.ca wrote:
>>>
>>>
>>>
>>>> On Thu, 13 Dec 2007 18:19:14 GMT, Alan Baker >
>>>> wrote:
>>>>> In article >,
>>>>> Michael Henry > wrote:
>>>>>> GTH wrote:
>>>>>>> Michael Henry a écrit :
>>>>>>>> why isn't the Lycoming O-540 or the Continental O-520 an
>>>>>>>> inverted V?
>>>>>>> They are derived from opposed engines, and the manufacturers thought
>>>>>>> easier to retain the same cylinders and cylinder heads as their 4
>>>>>>> cylinder counterparts.
>>>>>> OK so I just push my question back one generation: why is the O-360
>>>>>> not
>>>>>> an inverted V?
>>>>>> I'm asking more from a theoretical point of view. What is it that
>>>>>> makes
>>>>>> the opposed configuration more attractive than the V configuration for
>>>>>> air-cooled engines? Likewise: what is it that makes the V
>>>>>> configuration
>>>>>> more attractive than the opposed configuration for liquid-cooled
>>>>>> engines?
>>>>>> There are new aircraft engine designs out there: the Jabiru as an
>>>>>> air-cooled example and the Orenda as a liquid-cooled example. They
>>>>>> follow the same pattern that has become the norm.
>>>>>>> There have been a number of aircooled inverted engines in the post
>>>>>>> WWII
>>>>>>> period.
>>>>>> ...and in the pre-WWII period! The deHavilland Gipsy Major being a
>>>>>> notable example.
>>>>> I think one of the factors you're overlooking is vibration.
>>>>> Certain engine configurations have less vibration due to the arrangement
>>>>> of the reciprocating and revolving components:
>>>>> A 90 degree V-8; a straight-6; ...
>>>>> ...and a flat-4.
>>>>> A V-4 would have more vibration than a flat-4.
>>>> Yea, ever drive a Corsair V4? Even with a balance shaft they are not
>>>> smmoth.
>>> Um, somebody check me, but didn't the Corvair come with only one engine:
>>> a flat 6?
>>>
>>> --
>>> Alan Baker
>>> Vancouver, British Columbia
>>> "If you raise the ceiling four feet, move the fireplace from that wall
>>> to that wall, you'll still only get the full stereophonic effect if you
>>> sit in the bottom of that cupboard."
>> OK...."check" the spelling :)
>
> I'm sorry, but what do you think the spelling has to do with it?
>
Covair = GM http://en.wikipedia.org/wiki/Chevrolet_Corvair
Corsair = Ford http://en.wikipedia.org/wiki/Ford_Corsair
Rich S.[_1_]
December 14th 07, 11:53 PM
"Gig601XLBuilder" > wrote in message
...
> Covair = GM http://en.wikipedia.org/wiki/Chevrolet_Corvair
> Corsair = Ford http://en.wikipedia.org/wiki/Ford_Corsair
What's a Covair?
Rich S.
Morgans[_2_]
December 15th 07, 12:55 AM
"Rich S." > wrote
>
> What's a Covair?
That would be a Corvair that doesn't run.
It had lost it's r-r-r-r-r-r-r-r-r-r-r-r-r-r, r-r-r-r-r-r!
<g>
--
Jim in NC
Steve Hix
December 15th 07, 06:33 AM
In article >,
Gig601XLBuilder > wrote:
> Alan Baker wrote:
> > In article
> > >,
> > cavedweller > wrote:
> >
> >> On Dec 14, 12:45 pm, Alan Baker > wrote:
> >>> In article >,
> >>> clare at snyder.on.ca wrote:
> >>>
> >>>
> >>>
> >>>> On Thu, 13 Dec 2007 18:19:14 GMT, Alan Baker >
> >>>> wrote:
> >>>>> In article >,
> >>>>> Michael Henry > wrote:
> >>>>>> GTH wrote:
> >>>>>>> Michael Henry a écrit :
> >>>>>>>> why isn't the Lycoming O-540 or the Continental O-520 an
> >>>>>>>> inverted V?
> >>>>>>> They are derived from opposed engines, and the manufacturers thought
> >>>>>>> easier to retain the same cylinders and cylinder heads as their 4
> >>>>>>> cylinder counterparts.
> >>>>>> OK so I just push my question back one generation: why is the O-360
> >>>>>> not
> >>>>>> an inverted V?
> >>>>>> I'm asking more from a theoretical point of view. What is it that
> >>>>>> makes
> >>>>>> the opposed configuration more attractive than the V configuration for
> >>>>>> air-cooled engines? Likewise: what is it that makes the V
> >>>>>> configuration
> >>>>>> more attractive than the opposed configuration for liquid-cooled
> >>>>>> engines?
> >>>>>> There are new aircraft engine designs out there: the Jabiru as an
> >>>>>> air-cooled example and the Orenda as a liquid-cooled example. They
> >>>>>> follow the same pattern that has become the norm.
> >>>>>>> There have been a number of aircooled inverted engines in the post
> >>>>>>> WWII
> >>>>>>> period.
> >>>>>> ...and in the pre-WWII period! The deHavilland Gipsy Major being a
> >>>>>> notable example.
> >>>>> I think one of the factors you're overlooking is vibration.
> >>>>> Certain engine configurations have less vibration due to the arrangement
> >>>>> of the reciprocating and revolving components:
> >>>>> A 90 degree V-8; a straight-6; ...
> >>>>> ...and a flat-4.
> >>>>> A V-4 would have more vibration than a flat-4.
> >>>> Yea, ever drive a Corsair V4? Even with a balance shaft they are not
> >>>> smmoth.
> >>> Um, somebody check me, but didn't the Corvair come with only one engine:
> >>> a flat 6?
> >>>
> >>> --
> >>> Alan Baker
> >>> Vancouver, British Columbia
> >>> "If you raise the ceiling four feet, move the fireplace from that wall
> >>> to that wall, you'll still only get the full stereophonic effect if you
> >>> sit in the bottom of that cupboard."
> >> OK...."check" the spelling :)
> >
> > I'm sorry, but what do you think the spelling has to do with it?
> >
>
> Covair = GM http://en.wikipedia.org/wiki/Chevrolet_Corvair
> Corsair = Ford http://en.wikipedia.org/wiki/Ford_Corsair
Ah. Not a model sold in North America, IIRC.
clare at snyder.on.ca
December 15th 07, 11:33 PM
On Fri, 14 Dec 2007 22:33:46 -0800, Steve Hix
> wrote:
>In article >,
> Gig601XLBuilder > wrote:
>
>> Alan Baker wrote:
>> > In article
>> > >,
>> > cavedweller > wrote:
>> >
>> >> On Dec 14, 12:45 pm, Alan Baker > wrote:
>> >>> In article >,
>> >>> clare at snyder.on.ca wrote:
>> >>>
>> >>>
>> >>>
>> >>>> On Thu, 13 Dec 2007 18:19:14 GMT, Alan Baker >
>> >>>> wrote:
>> >>>>> In article >,
>> >>>>> Michael Henry > wrote:
>> >>>>>> GTH wrote:
>> >>>>>>> Michael Henry a écrit :
>> >>>>>>>> why isn't the Lycoming O-540 or the Continental O-520 an
>> >>>>>>>> inverted V?
>> >>>>>>> They are derived from opposed engines, and the manufacturers thought
>> >>>>>>> easier to retain the same cylinders and cylinder heads as their 4
>> >>>>>>> cylinder counterparts.
>> >>>>>> OK so I just push my question back one generation: why is the O-360
>> >>>>>> not
>> >>>>>> an inverted V?
>> >>>>>> I'm asking more from a theoretical point of view. What is it that
>> >>>>>> makes
>> >>>>>> the opposed configuration more attractive than the V configuration for
>> >>>>>> air-cooled engines? Likewise: what is it that makes the V
>> >>>>>> configuration
>> >>>>>> more attractive than the opposed configuration for liquid-cooled
>> >>>>>> engines?
>> >>>>>> There are new aircraft engine designs out there: the Jabiru as an
>> >>>>>> air-cooled example and the Orenda as a liquid-cooled example. They
>> >>>>>> follow the same pattern that has become the norm.
>> >>>>>>> There have been a number of aircooled inverted engines in the post
>> >>>>>>> WWII
>> >>>>>>> period.
>> >>>>>> ...and in the pre-WWII period! The deHavilland Gipsy Major being a
>> >>>>>> notable example.
>> >>>>> I think one of the factors you're overlooking is vibration.
>> >>>>> Certain engine configurations have less vibration due to the arrangement
>> >>>>> of the reciprocating and revolving components:
>> >>>>> A 90 degree V-8; a straight-6; ...
>> >>>>> ...and a flat-4.
>> >>>>> A V-4 would have more vibration than a flat-4.
>> >>>> Yea, ever drive a Corsair V4? Even with a balance shaft they are not
>> >>>> smmoth.
>> >>> Um, somebody check me, but didn't the Corvair come with only one engine:
>> >>> a flat 6?
>> >>>
>> >>> --
>> >>> Alan Baker
>> >>> Vancouver, British Columbia
>> >>> "If you raise the ceiling four feet, move the fireplace from that wall
>> >>> to that wall, you'll still only get the full stereophonic effect if you
>> >>> sit in the bottom of that cupboard."
>> >> OK...."check" the spelling :)
>> >
>> > I'm sorry, but what do you think the spelling has to do with it?
>> >
>>
>> Covair = GM http://en.wikipedia.org/wiki/Chevrolet_Corvair
>> Corsair = Ford http://en.wikipedia.org/wiki/Ford_Corsair
>
>Ah. Not a model sold in North America, IIRC.
There were a few,
Also called a Consul IIRC
--
Posted via a free Usenet account from http://www.teranews.com
Alan Baker
December 16th 07, 01:23 AM
In article >,
Gig601XLBuilder > wrote:
> Alan Baker wrote:
> > In article
> > >,
> > cavedweller > wrote:
> >
> >> On Dec 14, 12:45 pm, Alan Baker > wrote:
> >>> In article >,
> >>> clare at snyder.on.ca wrote:
> >>>
> >>>
> >>>
> >>>> On Thu, 13 Dec 2007 18:19:14 GMT, Alan Baker >
> >>>> wrote:
> >>>>> In article >,
> >>>>> Michael Henry > wrote:
> >>>>>> GTH wrote:
> >>>>>>> Michael Henry a écrit :
> >>>>>>>> why isn't the Lycoming O-540 or the Continental O-520 an
> >>>>>>>> inverted V?
> >>>>>>> They are derived from opposed engines, and the manufacturers thought
> >>>>>>> easier to retain the same cylinders and cylinder heads as their 4
> >>>>>>> cylinder counterparts.
> >>>>>> OK so I just push my question back one generation: why is the O-360
> >>>>>> not
> >>>>>> an inverted V?
> >>>>>> I'm asking more from a theoretical point of view. What is it that
> >>>>>> makes
> >>>>>> the opposed configuration more attractive than the V configuration for
> >>>>>> air-cooled engines? Likewise: what is it that makes the V
> >>>>>> configuration
> >>>>>> more attractive than the opposed configuration for liquid-cooled
> >>>>>> engines?
> >>>>>> There are new aircraft engine designs out there: the Jabiru as an
> >>>>>> air-cooled example and the Orenda as a liquid-cooled example. They
> >>>>>> follow the same pattern that has become the norm.
> >>>>>>> There have been a number of aircooled inverted engines in the post
> >>>>>>> WWII
> >>>>>>> period.
> >>>>>> ...and in the pre-WWII period! The deHavilland Gipsy Major being a
> >>>>>> notable example.
> >>>>> I think one of the factors you're overlooking is vibration.
> >>>>> Certain engine configurations have less vibration due to the arrangement
> >>>>> of the reciprocating and revolving components:
> >>>>> A 90 degree V-8; a straight-6; ...
> >>>>> ...and a flat-4.
> >>>>> A V-4 would have more vibration than a flat-4.
> >>>> Yea, ever drive a Corsair V4? Even with a balance shaft they are not
> >>>> smmoth.
> >>> Um, somebody check me, but didn't the Corvair come with only one engine:
> >>> a flat 6?
> >>>
> >>> --
> >>> Alan Baker
> >>> Vancouver, British Columbia
> >>> "If you raise the ceiling four feet, move the fireplace from that wall
> >>> to that wall, you'll still only get the full stereophonic effect if you
> >>> sit in the bottom of that cupboard."
> >> OK...."check" the spelling :)
> >
> > I'm sorry, but what do you think the spelling has to do with it?
> >
>
> Covair = GM http://en.wikipedia.org/wiki/Chevrolet_Corvair
> Corsair = Ford http://en.wikipedia.org/wiki/Ford_Corsair
Yeah...
I got that now.
--
Alan Baker
Vancouver, British Columbia
"If you raise the ceiling four feet, move the fireplace from that wall
to that wall, you'll still only get the full stereophonic effect if you
sit in the bottom of that cupboard."
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