When I was trying to choose my RV-9 engine I did not find performance numbers for an IO-360 RV-9. I went that route anyway and am now posting my performance numbers.
RV-9 slider
empty weight 1088 with full classic aero interior
empty cg 78.75 - (a little aft cg)
eci kit engine IO-360
airflow performance fuel injection
one magneto, one lightspeed electronic ignition
catto 3 blade 66x74 prop.
standard cowl and baffles
All fairings installed. fairings-etc intersection fairings.
Unpainted - fairings primed but not completely without pinholes
Tested weight approximately 1430lbs
Last night the wind was almost perfectly calm at 3500 ft, ceiling prevented me from going higher so I couldn't get WOT speed.
............................ Vg 1 Track 1 Vg 2 Track 2 Vg 3 Track 3 Vwind Wind dir Vtrue
.. IAS Temp Alt TAS (kts) (deg) (kts) (deg) (kts) (deg) (kts) (deg) (kts) mph
2 066 066 3500 071 071 244 072 315 072 022 1.2 146.1 070.8 081.47559
3 162 066 3500 174 171 264 171 354 173 107 1.2 309.0 171.9 197.64686
4 137 066 3500 147 141 019 141 085 145 145 4.5 052.0 144.8 166.55825
5 111 066 3500 119 120 086 120 345 121 226 0.6 035.5 120.4 138.4524
6 112 066 3500 120 120 240 122 133 122 020 1.3 256.5 121.3 139.46365
Stall speeds match van's published numbers.
Speeds computed using the spreadsheets found here: http://www.ntps.edu/information/downloads
I'm happy I went this route.
Todd Neidinger
RV-9 Flying
RV-9 slider
empty weight 1088 with full classic aero interior
empty cg 78.75 - (a little aft cg)
eci kit engine IO-360
airflow performance fuel injection
one magneto, one lightspeed electronic ignition
catto 3 blade 66x74 prop.
standard cowl and baffles
All fairings installed. fairings-etc intersection fairings.
Unpainted - fairings primed but not completely without pinholes
Tested weight approximately 1430lbs
Last night the wind was almost perfectly calm at 3500 ft, ceiling prevented me from going higher so I couldn't get WOT speed.
............................ Vg 1 Track 1 Vg 2 Track 2 Vg 3 Track 3 Vwind Wind dir Vtrue
.. IAS Temp Alt TAS (kts) (deg) (kts) (deg) (kts) (deg) (kts) (deg) (kts) mph
2 066 066 3500 071 071 244 072 315 072 022 1.2 146.1 070.8 081.47559
3 162 066 3500 174 171 264 171 354 173 107 1.2 309.0 171.9 197.64686
4 137 066 3500 147 141 019 141 085 145 145 4.5 052.0 144.8 166.55825
5 111 066 3500 119 120 086 120 345 121 226 0.6 035.5 120.4 138.4524
6 112 066 3500 120 120 240 122 133 122 020 1.3 256.5 121.3 139.46365
Stall speeds match van's published numbers.
Speeds computed using the spreadsheets found here: http://www.ntps.edu/information/downloads
I'm happy I went this route.
Todd Neidinger
RV-9 Flying