Today's Message Index:
----------------------
1. 09:00 AM - O-235 against O-320 : (was I'm back!) (Bob Hodgson)
2. 06:18 PM - Re: O-235 against O-320 : (was I'm back!) (Bruce Stewart)
Message 1
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| Subject: | O-235 against O-320 : (was I'm back!) |
--> RV3-List message posted by: "Bob Hodgson" <bob@hodgson252.freeserve.co.uk>
Bruce,
Haven't flown yet and don't have real data, but I'm hoping for about 205 mph
and 2000 fpm at 'sea level' from my 3 with an O-320-A and Pacesetter 68x69.
The O-235-L2C should produce 115 bhp, so Vmax should then be about 188 with
the same prop. Climb would suffer more than top speed; maybe 1500 fpm. These
are just guesstimations from speed varying as the cube root of power and RoC
varying linearly with excess power. If I'm wrong no doubt someone will
correct me PDQ !
BTW I think the L2C is 8.5 compression and needs 100 octane.
Bob (UK)
RV3B Canoe
----- Original Message -----
>
> Time: 12:05:43 PM PST US
> From: "Bruce Stewart" <bruce.stewart1@bigpond.com>
> Subject: RV3-List: I'm back!
>
> --> RV3-List message posted by: "Bruce Stewart"
<bruce.stewart1@bigpond.com>
>
> Anyone got an 0-235 RV 3 and some performance data?
> I've got an opportunity to buy an 235 L2C Lyc rather cheap and as I hate
> seeing a bargain slip by I don't want to pass it up but.........if the
> figures are way behind a 320
> then I'll give it a miss. I know this is a vague request as
> there are so many variables to the performance equation
> but some real data would be nice.
>
> Cheers
> Bruce
Message 2
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| Subject: | Re: O-235 against O-320 : (was I'm back!) |
--> RV3-List message posted by: "Bruce Stewart" <bruce.stewart1@bigpond.com>
Hi Bob,
I've started reading my way through 21 years of RVator last night and came
across
a fairly long piece on HP V Speed etc etc, after a while I was lost in
thought
and had to read it again and again and the more I read the more numb I
became! maybe it was the Gin and tonics!
Anyway as it stands I don't know what to buy, do or which way to think! so
many
options I guess, just as well I'm painting the house now as it gives me
lotsa time to
chew it over.
Bob how did you arive at the 68 x 69 Pacesetter prop? was it a purely
mathematical
decission or other use one? just curious.
Gotta go, back fence blew down last night and the neighbours horse is eating
his
way through my garden!!!! urrggggggghhhhh,,,, pitty I can't make it into
dog food ;o)
Bruce
----- Original Message -----
From: "Bob Hodgson" <bob@hodgson252.freeserve.co.uk>
Subject: RV3-List: O-235 against O-320 : (was I'm back!)
> --> RV3-List message posted by: "Bob Hodgson"
<bob@hodgson252.freeserve.co.uk>
>
> Bruce,
> Haven't flown yet and don't have real data, but I'm hoping for about 205
mph
> and 2000 fpm at 'sea level' from my 3 with an O-320-A and Pacesetter
68x69.
> The O-235-L2C should produce 115 bhp, so Vmax should then be about 188
with
> the same prop. Climb would suffer more than top speed; maybe 1500 fpm.
These
> are just guesstimations from speed varying as the cube root of power and
RoC
> varying linearly with excess power. If I'm wrong no doubt someone will
> correct me PDQ !
>
> BTW I think the L2C is 8.5 compression and needs 100 octane.
>
> Bob (UK)
> RV3B Canoe
>
> ----- Original Message -----
> >
> > Time: 12:05:43 PM PST US
> > From: "Bruce Stewart" <bruce.stewart1@bigpond.com>
> > Subject: RV3-List: I'm back!
> >
> > --> RV3-List message posted by: "Bruce Stewart"
> <bruce.stewart1@bigpond.com>
> >
> > Anyone got an 0-235 RV 3 and some performance data?
> > I've got an opportunity to buy an 235 L2C Lyc rather cheap and as I hate
> > seeing a bargain slip by I don't want to pass it up but.........if the
> > figures are way behind a 320
> > then I'll give it a miss. I know this is a vague request as
> > there are so many variables to the performance equation
> > but some real data would be nice.
> >
> > Cheers
> > Bruce
>
>
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