----- Original Message -----
Sent: Tuesday, December 31, 2002 9:20
PM
Subject: [FlyRotary] Cruise
----- Original Message
-----
From: "john" <frmrjohn@netonecom.net>
To: "Rotary motors in aircraft"
<flyrotary@lancaironline.net>
Sent: Tuesday, December 31, 2002 11:58
AM
Subject: [FlyRotary] Cruise info
> I'm still working out
the info to get the prop carved, and am wondering
what
> is the
optimum engine rpm at cruise and the fuel consumption you
fellows
are
> getting? All input would be greatly
appreciated. Thanks JohnD
>
>
140knots at 8500 feet. 6300RPM 30 liters/hour.
120 knots at 2000 feet 5500
RPM 20 liters/hour.
10% improvement if I run lean and mean like Tracy.
(exhaust glowing red is a
bit of a worry)
72"X 81" pitch. 2.85
gearbox.
Happy new year
Ian. Australia.
>
John,
I forgot to say the the quoted speeds
are IAS. To clarify, " its wot the ASI says". I think Tracy and Ed must be
quoting True air speed. ie. ground speed.> >>
Max at 7200rpm at 3000ft around
185knots.IAS.
Ian