Re: Props

Dave <dave@...>

Hi Peter,

I recall an fall fly-in where Bruce Crain learned something about
extended higher rpms on an O200 where he got a good amount of oil
ejected from the engine that wrapped around the fuselage. Perhaps Bruce
can chime in and shed some light on what happened. My recollection may
be wrong, but I thought he attributed it to extended higher rpms.

Dave Richardson

-----Original Message-----
From: Peter Harris []
Sent: Thursday, November 17, 2005 10:56 PM
Subject: Re: [Q-LIST] Props

Jerry it is worth taking a look at the website link to "performance" and
view the annual results of the Ottawa comps. Most on record use 60x72
and run close to 3000rpm. IMO if this prop were reduced to say 56"dia
and run at 32-3300rpm the performance would be increase rpm
by reducing the diameter (to a certain limit). I don't think we have
found the limit yet. I have chosen a 60x72 Sterba but will cut it down
to achieve redline rpm at WOT level flight,but I suspect you could go
as high as 74" pitch with a reduced diameter.I think there is more
potential airspeed to be found.
----- Original Message -----
From: Jerry Marstall
Sent: Friday, November 18, 2005 10:00 PM
Subject: [Q-LIST] Props

What are you guys running the high compression O-200's using as props?

(dia x pitch, performance)
Jerry Marstall

Quickie Builders Association WEB site


a.. Visit your group "Q-LIST" on the web.

b.. To unsubscribe from this group, send an email to:

c.. Your use of Yahoo! Groups is subject to the Yahoo! Terms of


[Non-text portions of this message have been removed]

Quickie Builders Association WEB site

Yahoo! Groups Links

Join to automatically receive all group messages.