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1. 03:41 PM - Re: RV-7 Performance Data Request (Bevan)
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| Subject: | Re: RV-7 Performance Data Request |
When flying high in my RV7A...
Throttle is always full open for max available manifold presssure,
I usually use 2400rpm for cruise because I've had it dynamically
balanced at that RPM. Yours may be different.
Once established in cruise, I lean to LOP via the big pull method and
end up around 40-60 LOP resulting in 7.5gph, 160Knots (TAS) at
8,000-11,000'. A little slower when higher (maybe 155TAS @ 12,500'
(from memory).
I have fuel injection and dual P-mags (spark advance) so not all will be
able to get the same results. What you really need to do is to do some
research on the equipment/configurations onboard, plan some test cards
and go fly. You'll want to know a bunch more stuff if it's not in the
POH the builder made (or didn't). Things like...
best rate/angle of climb.
Max power fuel consumption.
Various cruise speed fuel consumptions.
Best glide speed (mine was a range).
Least amount of sink (power off glide). Be sure to do it with prop fine
AND coarse.
Doing these things yourself will bring a lot of understanding and make
you a better pilot. Each Amateur-built RV7 is somewhat unique for
various reasons, and we like it this way. :)
Bevan
On 7/15/2019 8:30 AM, Greg Williams wrote:
> I have flown my 2004 RV7 for many hours now (IO360, Hartwell C/S,
> SkyView). Lots of cross country. I file for 150 knots at 12,000 or
> 11,000 depending on terrain & heading. Have O2 but wife doesn't like
> it. Usually see about 19.5" at 2400rpm and run 8.5 gpm leaned out but
> ROP. I don't keep track of exact numbers but these are close.
> Sometimes will run LOP but not that often. Greg
>
> Greg
>
> ------------------------------------------------------------------------
> *From:* owner-rv7-list-server@matronics.com
> <owner-rv7-list-server@matronics.com> on behalf of Garry Stout
> <garrys@tampabay.rr.com>
> *Sent:* Monday, July 15, 2019 8:10:12 AM
> *To:* rv7-list@matronics.com
> *Subject:* Re: RV7-List: RV-7 Performance Data Request
>
> I too would be interested in these numbers.
>
> Garry Stout
>
>
> > On Jul 15, 2019, at 10:45 AM, mdaniels <aox1969@earthlink.net> wrote:
> >
> >
> > Hi, I have an RV-7 with a LYCO IO-360 & a constant speed prop; and,
> I would like to get some actual performance figures to use in
> FltPlan.com. I would very much appreciate any data/performance
> figures that you use for X-country planning. Hopefully I can pick
> your brain for Altitude, RPM, Manifold Pressure/Throttle setting, and
> what IAS & TAS speeds those settings produce. It would also be greatly
> appreciated if you would include your Climb & Descent speeds and GPH
> that you fly. Also, any tips or tricks that you have learned in your
> X-country planning and flying.
> > Thank you very much
> >
> >
> >
>
>
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--
Bevan Tomm
Senior Technician
Fraser Valley Alarm Services Inc.
bevan@fvas.bc.ca
office 604-854-2994
Fax 604-852-6408
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