Terrence,

I don't know for sure. Here are some possibilities.

1)  I could just be wrong.
2)  Reports from 235/320 owners that I have spoken to could understate the speed.
3)  Reports on the 320 from the factory could overstate the speed.
4)  The rectangular cowling on the 235/320 could make a difference.

How fast does your 235/320 cruise at 8 gph.

Lorn

> From: Terrence O'Neill <troneill@charter.net>
> Date: March 22, 2010 12:00:17 PM EDT
> To: lml@lancaironline.net
> Subject: Re: [LML] Re: Lancair 235
>
>
> Lorn,
> Quick question:  why is the 320 some 15 knots faster than the 235 w/ 320 engine with less wetted area (slightly smaller fuselage)?
> Terrence (w/ 235 w/ 320 engine) N211AL

--
Lorn H. 'Feathers' Olsen, MAA, ASMEL, ASES, Comm, Inst
DynaComm, Corp., 248-345-0500, mailto:lorn@dynacomm.us
LNC2, FB90/92, O-320-D1F, 1,700 hrs, N31161, Y47, SE Michigan