Today's Message Index:
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1. 06:46 AM - Re: Power Settings (David Edgemon)
2. 09:09 AM - Re: Rpm on 0320 (Neilekins@aol.com)
Message 1
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| Subject: | Re: Power Settings |
--> RV9-List message posted by: David Edgemon <dedgemon@knology.net>
Okay lets try this again. Sorry about the formatting last time. Gotta
love Microsoft word.
I also threw in some data from tests that I did back in December. Gives
you a feel for how the 9 does up high and at difference power settings.
These flights were made before fairing the nose gear and gear leg but
the main wheel pants and leg fairings were in place. I've subsequently
installed the nose gear pant and fairings but have not redone the tests.
I would "guess" that maybe theirs another couple of knots there but I'm not
sure yet.
>
>________________________________ Message 1 _____________________________________
>
>
>Time: 05:17:10 PM PST US
>From: David Edgemon <dedgemon@knology.net>
>Subject: RV9-List: 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)
>
>
>
>
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
12-27-04
High Altitude flights
Notes: No nosewheel pant or nose gear fairing.
8500 msl 8340 DA 2 deg. C OAT
2400 rpm @ 22.1 MAP (Wide Open Throttle)
EGTs 1364 1285 1321 1291 spread = 79
CHTs 347 358 352 338 spread = 20
156 knots TAS
10500 msl 10420 DA -1 deg. C OAT
2400 rpm @ 20.4 MAP (Wide Open Throttle)
EGTs 1336 1265 1291 1262 spread = 74
CHTs 337 333 336 325 spread = 12
154 knots TAS
climb rate at 10500 ~ 1200 fpm
12500 msl 12370 DA -5 deg. C OAT
2400 rpm @ 19.0 MAP (Wide Open Throttle)
EGTs 1310 1229 1247 1228 spread = 82
CHTs 343 330 339 325 spread = 18
151 knots TAS
climb rate at 12500 ~ 1000 fpm
12/31/04
Misc. power settings
Notes: No nosewheel pant or nose gear fairing.
Density Alt Power Setting True Airspeed % power
4500 23/2300 144 72
2500 23/2300 143 70
2500 22/2200 135 62
2500 20/2000 125 47
8000 22/2600 162 80
8300 22/2400 156 75
Message 2
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--> RV9-List message posted by: Neilekins@aol.com
Yes, My wheel pants and faring's are on
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