A first order approximation is to consider a linear relation exists between
MP, RPM, and power.

TCM says that 38.5" MP and 2700 RPM gives 100% power (350 hp)

Cruise setting of 31" MP and 2500 RPM thus gives (31/38.5) * (2500/2700) =
74.5% or 261 hp

Another example: 28" MP and 2400 RPM: (28/38.5) * (2400/2700) = 64.6% or 226
hp

So you can calculate the power with different settings, or choose you power
and back-calculate to determine the settings requried.

Jay Phillips
Legacy N92SX
IV-P N516DB


-----Original Message-----
From: Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of Tony
Ketelaars
Sent: Thursday, January 05, 2012 12:00 PM
To: lml@lancaironline.net
Subject: [LML] Lancair 4P power settings

Can any one tell me what the MAP/RPM power settings are for the
Lanceair 4P TSIO550
Like 60 - 65 - 70 - 75%

Thanks

Tony Ketelaars

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