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Ray.R.Doerr(at)sprint.com
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 Posted: Mon Aug 28, 2006 4:46 am Post subject: Power settings used for Instrument Approaches |
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I am currently working on my Instrument ticket in my RV-10. I was wondering what power settings people are using for approach speeds? I was using something like 19" and 1900 rpm with 10 degree of flaps for a 90 Knot straight and level, but then when you are doing down the 3 degree glideslopp it would be like 1900 rpm and 13". But then this is no good if you need to go around. because now you have to bother with prop and throttle at a time where you only have 200 ft above the ground. I was going to try some power settings tomorrow with the rpm somewhere between 2400 - 2500 and then just figure out what MAP I need for staright and level at 90 knots and then what I need going down the glide slope. Can other share what they use for this?
Thanks
Ray Doerr
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coop85(at)bellsouth.net
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| Posted: Mon Aug 28, 2006 5:08 am Post subject: Power settings used for Instrument Approaches |
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Ray,
I don’t have any specific numbers, but as you alluded to you definitely want the prop at high RPM, all the way in. Besides giving you the best option for a go-around, it also will help you descend faster if required since it acts a little like a brake with the throttle way back. Realize too that the numbers you come up with will vary slightly based on the conditions (altitude & temp) for your approaches. I’m more of a “if I’m slow I’ll push in the power” kind of guy, although some initial starting numbers would make your life a lot more simple as you learn the instrument crosscheck.
BTW, I am hugely impressed with the -10 (in my whopping 12 hours TT so far) as an instrument platform. Rock steady and very predictable, even in a little turbulence. The TruTrak is working very well also which really makes things simple.
Good Luck,
Marcus
Do not archive
From: owner-rv10-list-server(at)matronics.com [mailto:owner-rv10-list-server(at)matronics.com] On Behalf Of Doerr, Ray R [NTK]
Sent: Monday, August 28, 2006 8:45 AM
To: rv10-list(at)matronics.com
Subject: Power settings used for Instrument Approaches
I am currently working on my Instrument ticket in my RV-10. I was wondering what power settings people are using for approach speeds? I was using something like 19" and 1900 rpm with 10 degree of flaps for a 90 Knot straight and level, but then when you are doing down the 3 degree glideslopp it would be like 1900 rpm and 13". But then this is no good if you need to go around. because now you have to bother with prop and throttle at a time where you only have 200 ft above the ground. I was going to try some power settings tomorrow with the rpm somewhere between 2400 - 2500 and then just figure out what MAP I need for staright and level at 90 knots and then what I need going down the glide slope. Can other share what they use for this?
Thanks
Ray Doerr
[quote][b]
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flysrv10(at)gmail.com
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| Posted: Mon Aug 28, 2006 5:21 am Post subject: Power settings used for Instrument Approaches |
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I am doing what you plan to do on your next try. Throttle full in,
mixture rich and ready for go-around. I adjust the MP for about
1800-1900 RPM.
Do not archive
On Aug 28, 2006, at 8:44 AM, Doerr, Ray R [NTK] wrote:
| Quote: | I am currently working on my Instrument ticket in my RV-10. I
was wondering what power settings people are using for approach
speeds? I was using something like 19" and 1900 rpm with 10 degree
of flaps for a 90 Knot straight and level, but then when you are
doing down the 3 degree glideslopp it would be like 1900 rpm and
13". But then this is no good if you need to go around. because
now you have to bother with prop and throttle at a time where you
only have 200 ft above the ground. I was going to try some power
settings tomorrow with the rpm somewhere between 2400 - 2500 and
then just figure out what MAP I need for staright and level at 90
knots and then what I need going down the glide slope. Can other
share what they use for this?
Thanks
Ray Doerr
<winmail.dat>
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mritter509(at)msn.com
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| Posted: Mon Aug 28, 2006 6:01 am Post subject: Power settings used for Instrument Approaches |
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Try mixture full rich and prop at high rpm. Use throttle to adjust rate of
decent. With this setup on a go-around all you have to do is push in the
thottle and raise the flaps.
I use an AOA which seems to make the landing process consistent no matter
weight, bank angle or tubulence.
Mark (N410MR)
| Quote: | From: Rob Kermanj <flysrv10(at)gmail.com>
Reply-To: rv10-list(at)matronics.com
To: rv10-list(at)matronics.com
Subject: Re: Power settings used for Instrument Approaches
Date: Mon, 28 Aug 2006 09:21:17 -0400
I am doing what you plan to do on your next try. Throttle full in,
mixture rich and ready for go-around. I adjust the MP for about 1800-1900
RPM.
Do not archive
On Aug 28, 2006, at 8:44 AM, Doerr, Ray R [NTK] wrote:
> I am currently working on my Instrument ticket in my RV-10. I was
>wondering what power settings people are using for approach speeds? I
>was using something like 19" and 1900 rpm with 10 degree of flaps for a
>90 Knot straight and level, but then when you are doing down the 3 degree
>glideslopp it would be like 1900 rpm and 13". But then this is no good
>if you need to go around. because now you have to bother with prop and
>throttle at a time where you only have 200 ft above the ground. I was
>going to try some power settings tomorrow with the rpm somewhere between
>2400 - 2500 and then just figure out what MAP I need for staright and
>level at 90 knots and then what I need going down the glide slope. Can
>other share what they use for this?
>
>Thanks
>
>Ray Doerr
>
>
><winmail.dat>
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Tim(at)MyRV10.com
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| Posted: Mon Aug 28, 2006 8:37 am Post subject: Power settings used for Instrument Approaches |
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Ray,
You should find that if you go full forward on the prop,
at lower MP's you'll not get 2400 RPM....you may only
get 1900-2000 rpm on a low power descent. So really
all you need to do is go full-forward on the prop, and
fly an ILS a few times, and you'll find the MP that you
like to use for keeping the glideslope on your
airframe/engine/prop combo.
The other replies are right on....the -10 is a great
Instrument platform. About the only thing that makes
it not perfect is having a stick in the center where
your charts would sit....but that necessary evil
also makes it a great plane to fly, so it's just a minor
tradeoff.
Tim Olson - RV-10 N104CD - Flying
do not archive
Doerr, Ray R [NTK] wrote:
| Quote: | I am currently working on my Instrument ticket in my RV-10. I was
wondering what power settings people are using for approach speeds?
I was using something like 19" and 1900 rpm with 10 degree of flaps
for a 90 Knot straight and level, but then when you are doing down
the 3 degree glideslopp it would be like 1900 rpm and 13". But then
this is no good if you need to go around. because now you have to
bother with prop and throttle at a time where you only have 200 ft
above the ground. I was going to try some power settings tomorrow
with the rpm somewhere between 2400 - 2500 and then just figure out
what MAP I need for staright and level at 90 knots and then what I
need going down the glide slope. Can other share what they use for
this?
Thanks
Ray Doerr
|
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armywrights(at)adelphia.n
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| Posted: Mon Aug 28, 2006 6:52 pm Post subject: Power settings used for Instrument Approaches |
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I think you’ve hit the nail on the head – try different things to see what begins to work for you. Have two configuration in mind, one with approach flaps for an ILS (more likely to continue to full stop) and one clean for a non-precision approach (more likely to go missed due to higher mins). Might also want to set prop to a higher setting during the approach: 1) it’ll slow you down like big air brake and help with the glideslope, and 2) you only have to move the throttle on the missed.
Having things always squared on approach won’t work after a while; too much strain on the motor with low MP trying to swing a prop at coarse pitch.
Rob Wright
Do not archive
From: owner-rv10-list-server(at)matronics.com [mailto:owner-rv10-list-server(at)matronics.com] On Behalf Of Doerr, Ray R [NTK]
Sent: Monday, August 28, 2006 7:45 AM
To: rv10-list(at)matronics.com
Subject: Power settings used for Instrument Approaches
I am currently working on my Instrument ticket in my RV-10. I was wondering what power settings people are using for approach speeds? I was using something like 19" and 1900 rpm with 10 degree of flaps for a 90 Knot straight and level, but then when you are doing down the 3 degree glideslopp it would be like 1900 rpm and 13". But then this is no good if you need to go around. because now you have to bother with prop and throttle at a time where you only have 200 ft above the ground. I was going to try some power settings tomorrow with the rpm somewhere between 2400 - 2500 and then just figure out what MAP I need for staright and level at 90 knots and then what I need going down the glide slope. Can other share what they use for this?
Thanks
Ray Doerr
[quote][b]
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