64%, 19.1"-->20.1") yielded a 9%+ TAS increase (195-->213)? Or, am I just fibbing with the data?>> Scott, Something looks suspicious. Power is going to change with the third power of velocity. Your sample data points require about a 22% reduction in power. The fuel flow readings seem to agree with this. What's up with the MP reading?? Chris, I thought you would catch this a different way - The WOT numbers were also only a 1 inch drop from a climb of 2000 feet, yet only a 1 Knot TAS change. This should have been a 2" drop. Arnie is not answering his cell phone. We need answers. He did take these MAP readings from his VM 1000 system. However, I expect all he did was reduce the throttle until he got a 1" drop, stabilize the level flight and read the different IAS/TAS numbers off of his Lancair approved analog indicated/true airspeed steam gauge. Darn, now I'll have to go up in the cold and do it myself. BTW, the power numbers are from my dubious chart, MAP x RPM with 29"x 2700 = 100%. Also, I don't know if he releaned to 125 ROP. This is why I do so many things myself, I can only answer challenges to what I do. Hey, wait a second, why don't you go out and try this? Scott Krueger AKA Grayhawk N92EX IO320 Aurora, IL (KARR) -------------------------------1103576331 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable

In a message dated 12/20/2004 2:10:33 P.M. Central Standard Time,=20 Christopher.Zavatson@udlp.com writes:

<= FONT=20 style=3D"BACKGROUND-COLOR: transparent" face=3DArial color=3D#000000=20 size=3D2><<PS: Does this mean a 3% power increase=20 (61%-->64%, 19.1"-->20.1")
yielded a
9%+ TAS increase =20 (195-->213)? Or, am I just fibbing with the =20 data?>>
Scott,
Something looks suspicious. Power is goin= g to=20 change with the third
power of velocity. Your sample data points=20 require about a 22%
reduction in power. The fuel flow readings se= em=20 to agree with this.
What's up with the MP=20 reading??

Chris,

I thought you would catch this a different way - The WOT numbers were a= lso=20 only a 1 inch drop from a climb of 2000 feet, yet only a 1 Knot TAS=20 change. This should have been a 2" drop. Arnie is not answering=20= his=20 cell phone. We need answers. He did take these MAP readings from= his=20 VM 1000 system.

However, I expect all he did was reduce the throttle until he got a 1"=20 drop, stabilize the level flight and read the different IAS/TAS=20 numbers off of his Lancair approved analog indicated/true airspeed ste= am=20 gauge. Darn, now I'll have to go up in the cold and do it myself.

BTW, the power numbers are from my dubious chart, MAP x RPM with 29"x 2= 700=20 =3D 100%. Also, I don't know if he releaned to 125 ROP.

This is why I do so many things myself, I can only answer challeng= es=20 to what I do. Hey, wait a second, why don't you go out and try this?&n= bsp;=20

Scott Krueger=20 AKA Grayhawk
N92EX IO320 Aurora, IL=20 (KARR)

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