Power Setting Tables For XIO-360MIB?

[laserman]

So All...... I have been looking around..

But have not been able to find... They gotta be out there...

The...

?Engine Power Setting Tables.. The typical ?Percentage Power with MP-RPM-Altitude? tables? for the VANS supplied XIO-360MIB.

Either a jpg or docx format so I can pull them into my POH.

Can anyone direct to or supply ..

Many thanks


Al

[KatanaPilot]

Originally Posted by laserman

So All...... I have been looking around..

But have not been able to find... They gotta be out there...

The...

?Engine Power Setting Tables.. The typical ?Percentage Power with MP-RPM-Altitude? tables? for the VANS supplied XIO-360MIB.

Either a jpg or docx format so I can pull them into my POH.

Can anyone direct to or supply ..

Many thanks


Al

I have a couple of charts for an IO-360-M1A that will probably work just fine for you. Send me your email and I'll send them to you.

krea dot ellis at gmail dot come

[RV10inOz]

It is really dead simple.

Create your own based on the following. And remember this, you do not need to be within a few % to be useful. Despite what some people will tell you.

When operating Rich of Peak EGT.

HP = Max rated x (MP/29.9) x (RPM/max RPM)

Example at say 8000' roughly WOT/2400 RPM and ROP, (22/30) x (24/27) = 65% of rated power


When LOP, with a standard compression ratio 8.5-8.7 : 1, take Fuel flow (USGPH) x 14.9 /rated HP

Example as above, WOT / 2400 RPM / 7.9GPH (and LOP)
14.9 x 7.9 = 118HP divided by 180 equals 65% power.
You would typically be doing this at 24.4" or around 5500', which if you were ROP would be 72%.

Rough numbers are good enough. In fact rather than 14.9 just use 15.

If you or anyone else tries to make it more complicated, you need to rethink what you are doing.

Hope that helps.

[laserman]

Thanks.. I will use the simple equation method to generate the charts ..
They will look very impressive.. Even if they are never used 🤓

Al

[scrollF4]

My numbers for my RV-7A, XIO360-M1B, 74" Hartzell Blended Airfoil CS Prop, dual Pmags:

SPEED! Cruise Performance at 8,500’ MSL,
With LEANEST Cylinder EGT 100 degrees RICH of Peak:
% Power MAP RPM Fuel Flow KIAS / KTAS
75% 22.9” 2600 11.5 GPH 148 / 168
70% 22.3” 2500 10.5 GPH 143 / 163
65% 21.6” 2400 9.7 GPH 138 / 157

ECONOMY! Cruise Performance at 8,500’ MSL,
With RICHEST Cylinder EGT 30 degrees LEAN of Peak:
% Power MAP RPM Fuel Flow KIAS / KTAS
71% 22.9” 2600 8.6 GPH 144 / 165
70% 22.9” 2500 8.5 GPH 143 / 163
65% 22.6” 2400 7.8 GPH 138 / 157
60% 21.0” 2400 7.3 GPH 132 / 150

Data Source: Dynon Skyview Classic system numbers

[Bob Redman]

G'day Scroll,

thanks for posting.

Similar speeds, fuel flow, configuration.

My numbers observed on Classic Skyview within normal scatter.

RV-7, Aerosport IO-360 M1, 2 x PMag (25 BTDC, but retarded 1 notch), BA Hartzell 72".

Regards,

[PhatRV]

Originally Posted by RV10inOz

It is really dead simple.

Create your own based on the following. And remember this, you do not need to be within a few % to be useful. Despite what some people will tell you.

When operating Rich of Peak EGT.

HP = Max rated x (MP/29.9) x (RPM/max RPM)

Example at say 8000' roughly WOT/2400 RPM and ROP, (22/30) x (24/27) = 65% of rated power


When LOP, with a standard compression ratio 8.5-8.7 : 1, take Fuel flow (USGPH) x 14.9 /rated HP

Example as above, WOT / 2400 RPM / 7.9GPH (and LOP)
14.9 x 7.9 = 118HP divided by 180 equals 65% power.
You would typically be doing this at 24.4" or around 5500', which if you were ROP would be 72%.

Rough numbers are good enough. In fact rather than 14.9 just use 15.

If you or anyone else tries to make it more complicated, you need to rethink what you are doing.

Hope that helps.

Thanks for the information. I never learned this in ground school.

[rv8ch]

Kevin Horton wrote a great article about this exact subject in Kitplanes here:

https://www.kitplanes.com/determining-engine-power/

[Z-EDD]

Originally Posted by laserman

So All...... I have been looking around..

But have not been able to find... They gotta be out there...

The...

?Engine Power Setting Tables.. The typical ?Percentage Power with MP-RPM-Altitude? tables? for the VANS supplied XIO-360MIB.

Either a jpg or docx format so I can pull them into my POH.

Can anyone direct to or supply ..

Many thanks


Al

I think this is what you are looking for. It is a PITA since it attempts to amalgamate information for all IO-360 models (apart from the -M1A for some bizarre reason)
https://www.lycoming.com/sites/defau...2060297-12.pdf

[Capt]

Originally Posted by Z-EDD

I think this is what you are looking for. It is a PITA since it attempts to amalgamate information for all IO-360 models (apart from the -M1A for some bizarre reason)
https://www.lycoming.com/sites/defau...2060297-12.pdf

Some interesting figures there. I kinda use the 'kiss' method. Just fly my 8 and enjoy the ride looking after my engine at the same time with fuel WOT/2400 @8500' 33lph yields 153 kts IAS. I'm old school ROP, 40 years