RV9-List Digest Archive
Sat 02/26/05 |
Total Messages Posted: 4 |
Today's Message Index:
----------------------
1. 05:17 PM - Re: {pwer Settings (David Edgemon)
2. 05:54 PM - (no subject) (KDMIGAS@aol.com)
3. 06:32 PM - Re: Rpm on 0320 (Ralph Cloud)
4. 07:09 PM - Re: Rpm on 0320 (Richard Jones)
Message 1
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Time: 05:17:10 PM PST US
From: David Edgemon <dedgemon@knology.net>
Subject: Re: {pwer Settings
--> RV9-List message posted by: David Edgemon <dedgemon@knology.net>
Steve,
I've enclose the chart that I use with my RV-9A. I'm using an Aerosport
0-320-D1A with a Hartzell constant speed prop. The data for the table
came straight out of
the Lycoming Users Manual. Their chart is a pain to use but I've done it
and will not have to again.
I find that normal flying with the guys (3000' to 5000' ) tends to be
done around 23/2300 to 24/2400. By myself I tend
to fly higher (around 7000' to 8000' ) and run wide open at 2300 or 2400.
Another setting that kind of neat when you're just loafing around is
2200 and 18 or 19 inches. This is about 50 % and is good for 130 - 135
knots. Just amazing.
Power Chart (Percentage)
Percent Power vs Density altitude
Map
RPM
0
1000
2000
3000
4000
5000
6000
7000
8000
9000
10000
11000
12000
18
2000
0.34
0.37
0.39
0.40
0.42
0.43
0.44
0.45
0.46
0.48
0.49
0.50
0.52
20
2000
0.44
0.45
0.46
0.48
0.49
0.51
0.53
0.54
0.55
0.56
0.58
21
2100
0.51
0.52
0.54
0.55
0.56
0.58
0.59
0.61
0.61
0.63
18
2200
0.41
0.42
0.43
0.44
0.46
0.47
0.48
0.49
0.51
0.52
0.53
0.54
0.56
20
2200
0.49
0.50
0.51
0.53
0.54
0.56
0.58
0.59
0.60
0.61
0.62
21
2200
0.53
0.54
0.55
0.57
0.59
0.60
0.61
0.63
0.64
0.66
22
2200
0.58
0.59
0.61
0.62
0.64
0.65
0.67
0.68
20
2300
0.52
0.53
0.54
0.56
0.58
0.59
0.60
0.61
0.62
0.63
0.65
21
2300
0.56
0.58
0.59
0.61
0.62
0.63
0.64
0.66
0.67
22
2300
0.61
0.62
0.63
0.65
0.67
0.68
0.69
0.71
23
2300
0.66
0.67
0.69
0.70
0.71
0.73
0.74
18
2400
0.47
0.48
0.49
0.50
0.52
0.53
0.54
0.55
0.57
0.58
0.59
0.60
0.61
20
2400
0.56
0.58
0.59
0.60
0.61
0.62
0.63
0.64
0.65
0.66
21
2400
0.60
0.61
0.62
0.64
0.65
0.66
0.68
0.69
0.71
22
2400
0.64
0.66
0.67
0.69
0.71
0.72
0.73
0.74
23
2400
0.69
0.70
0.71
0.73
0.74
0.76
0.77
24
2400
0.74
0.75
0.76
0.78
0.79
0.80
23
2500
0.72
0.73
0.74
0.75
0.76
0.77
0.79
24
2500
0.76
0.78
0.79
0.80
0.81
0.83
25
2500
0.81
0.83
0.84
0.86
0.86
18
2600
0.52
0.53
0.54
0.55
0.57
0.58
0.59
0.61
0.62
0.63
0.64
0.65
24
2600
0.79
0.80
0.81
0.83
0.84
25
2600
0.84
0.86
0.88
0.91
26
2600
0.89
0.90
0.92
20
2700
0.63
0.64
0.65
0.66
0.68
0.69
0.71
0.72
0.73
0.74
21
2700
0.68
0.69
0.70
0.71
0.73
0.73
0.74
0.76
0.77
22
2700
0.72
0.73
0.74
0.76
0.78
0.79
0.80
0.81
23
2700
0.77
0.78
0.79
0.81
0.83
0.84
0.84
24
2700
0.81
0.83
0.84
0.86
0.88
25
2700
0.86
0.88
0.89
0.91
26
2700
0.91
0.93
0.95
27
2700
0.96
0.98
>
>________________________________ Message 1 _____________________________________
>
>
>Time: 10:26:15 AM PST US
>From: "Steve Sampson" <SSampson.SLN21@london.edu>
>Subject: RV9-List: Power Settings
>
>--> RV9-List message posted by: "Steve Sampson" <SSampson.SLN21@london.edu>
>
>I need to develop a chart with operational power settings, i.e
>Altitude/RPM/MP/ Power Developed.
>
>Does anyone have or know of a program/ spread sheet that will do this for
>me? I would be very grateful for a copy. Alternatively, just some practical
>cruise settings.
>
>I would like to be able to set up less than 75% or 65% power, confidently,
>outside the prop avoid band at a variety of altitudes.
>
>Ideally it needs to be for an O-320 but I expect % power would be very
>similar for an O-360
>
>Thanks, Steve.
>
>
>#90360
>G-IINI
>
>
>
Message 2
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Time: 05:54:45 PM PST US
From: KDMIGAS@aol.com
Subject: (no subject)
--> RV9-List message posted by: KDMIGAS@aol.com
I'm getting close to the final inspection and am wondering if anyone has or
knows of a good format for a 9A Operating Manual.. What have any of the "now
flying" types done.. Any
suggestions would be appreciated
Dick Migas,finish kit
Message 3
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Time: 06:32:15 PM PST US
From: "Ralph Cloud" <rv9ralph@flash.net>
Subject: Rpm on 0320
--> RV9-List message posted by: "Ralph Cloud" <rv9ralph@flash.net>
Dick,
Do yo have all your fairings and wheel pants installed?
Ralph, wings
Livermore, CA
Do not archive
> -----Original Message-----
> From: owner-rv9-list-server@matronics.com
> [mailto:owner-rv9-list-server@matronics.com] On Behalf Of
> Richard Jones
> Sent: Friday, February 25, 2005 9:29 PM
> To: rv9-list@matronics.com
> Subject: Re: RV9-List: Rpm on 0320
>
>
> --> RV9-List message posted by: "Richard Jones" <esnj@granbury.com>
>
> I was initially disappointed because Van's preformance specs.
> indicate about
> 165 KTS TAS with a 150 HP engine at wide open throttle. My
> WOT RPM equates
> to about 145 HP and this would account for a couple of knots,
> and I found
> that most people believe that Van's numbers are a little high. After
> accounting for this, I got more comfortable with my planes'
> performance.
> Besides, I really don't need to go that fast!...Dick Jones
>
>
> ----- Original Message -----
> From: "John Spicer" <spike@spikesplace.org>
> To: <rv9-list@matronics.com>
> Subject: Re: RV9-List: Rpm on 0320
>
>
> > --> RV9-List message posted by: John Spicer <spike@spikesplace.org>
> >
> > That sounds like a good TAS, why are you disappointed?
> >
> > -- John S.
> >
> > do not archive
> >
> >
> > Richard Jones wrote:
> >
> >>--> RV9-List message posted by: "Richard Jones" <esnj@granbury.com>
> >>
> >>Neil: I have an O-320 with a Sensenich 70CM with 79" pitch
> on my 9A,
> >>and
> >>my
> >>numbers are virtually identical to yours. I have flown a
> triangular
> >>course
> >>at 8000 MSL, Barometer-29.72, OAT-62F., 1450 lbs. and came
> up with 153
> >>knots
> >>at an RPM of about 2570 RPM. I was initially disappointed
> based on Van's
> >>numbers but I got over it. Most of my flying is at about
> 2050 RPM where I
> >>can make 120 KTS on 6 gallons per hour.
> >>
> >>Dick Jones 90062
> >>
> >>
> >>----- Original Message -----
> >>From: <Neilekins@aol.com>
> >>To: <rv9-list@matronics.com>
> >>Subject: RV9-List: Rpm on 0320
> >>
> >>
> >>
> >>
> >>>--> RV9-List message posted by: Neilekins@aol.com
> >>>
> >>>I'm wondering if any one out there could tell me what kind
> of rpm's
> >>>they are getting on an RV 9 A. On climb out I'm getting
> around 2250
> >>>and wide open I'm
> >>>getting only up to 2540. At 8000 ft I indicate 148 knots .
> I'm running
> >>>a
> >>>sensenich 70 inch 79 pitch metal prop.
> >>>
> >>>
> >>>
> >>>
> >>>
> >>
> >>
> >>
> >>
> >
> >
> > --
> > No virus found in this outgoing message.
> > Checked by AVG Anti-Virus.
> >
> >
> >
>
>
> =========
> Matronics Forums.
> =========
> =========
>
>
>
>
>
Message 4
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Time: 07:09:45 PM PST US
From: "Richard Jones" <esnj@granbury.com>
Subject: Re: Rpm on 0320
--> RV9-List message posted by: "Richard Jones" <esnj@granbury.com>
Ralph: This data was with all gear and wheel fairings and finish
paint...Dick Jones
----- Original Message -----
From: "Ralph Cloud" <rv9ralph@flash.net>
Subject: RE: RV9-List: Rpm on 0320
> --> RV9-List message posted by: "Ralph Cloud" <rv9ralph@flash.net>
>
> Dick,
> Do yo have all your fairings and wheel pants installed?
> Ralph, wings
> Livermore, CA
> Do not archive
>
>> -----Original Message-----
>> From: owner-rv9-list-server@matronics.com
>> [mailto:owner-rv9-list-server@matronics.com] On Behalf Of
>> Richard Jones
>> Sent: Friday, February 25, 2005 9:29 PM
>> To: rv9-list@matronics.com
>> Subject: Re: RV9-List: Rpm on 0320
>>
>>
>> --> RV9-List message posted by: "Richard Jones" <esnj@granbury.com>
>>
>> I was initially disappointed because Van's preformance specs.
>> indicate about
>> 165 KTS TAS with a 150 HP engine at wide open throttle. My
>> WOT RPM equates
>> to about 145 HP and this would account for a couple of knots,
>> and I found
>> that most people believe that Van's numbers are a little high. After
>> accounting for this, I got more comfortable with my planes'
>> performance.
>> Besides, I really don't need to go that fast!...Dick Jones
>>
>>
>> ----- Original Message -----
>> From: "John Spicer" <spike@spikesplace.org>
>> To: <rv9-list@matronics.com>
>> Subject: Re: RV9-List: Rpm on 0320
>>
>>
>> > --> RV9-List message posted by: John Spicer <spike@spikesplace.org>
>> >
>> > That sounds like a good TAS, why are you disappointed?
>> >
>> > -- John S.
>> >
>> > do not archive
>> >
>> >
>> > Richard Jones wrote:
>> >
>> >>--> RV9-List message posted by: "Richard Jones" <esnj@granbury.com>
>> >>
>> >>Neil: I have an O-320 with a Sensenich 70CM with 79" pitch
>> on my 9A,
>> >>and
>> >>my
>> >>numbers are virtually identical to yours. I have flown a
>> triangular
>> >>course
>> >>at 8000 MSL, Barometer-29.72, OAT-62F., 1450 lbs. and came
>> up with 153
>> >>knots
>> >>at an RPM of about 2570 RPM. I was initially disappointed
>> based on Van's
>> >>numbers but I got over it. Most of my flying is at about
>> 2050 RPM where I
>> >>can make 120 KTS on 6 gallons per hour.
>> >>
>> >>Dick Jones 90062
>> >>
>> >>
>> >>----- Original Message -----
>> >>From: <Neilekins@aol.com>
>> >>To: <rv9-list@matronics.com>
>> >>Subject: RV9-List: Rpm on 0320
>> >>
>> >>
>> >>
>> >>
>> >>>--> RV9-List message posted by: Neilekins@aol.com
>> >>>
>> >>>I'm wondering if any one out there could tell me what kind
>> of rpm's
>> >>>they are getting on an RV 9 A. On climb out I'm getting
>> around 2250
>> >>>and wide open I'm
>> >>>getting only up to 2540. At 8000 ft I indicate 148 knots .
>> I'm running
>> >>>a
>> >>>sensenich 70 inch 79 pitch metal prop.
>> >>>
>> >>>
>> >>>
>> >>>
>> >>>
>> >>
>> >>
>> >>
>> >>
>> >
>> >
>> > --
>> > No virus found in this outgoing message.
>> > Checked by AVG Anti-Virus.
>> >
>> >
>> >
>>
>>
>> =========
>> Matronics Forums.
>> =========
>> =========
>>
>>
>>
>>
>>
>
>
>
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