Mark,  good news. According to Paul today,  the oil pan will not
require modification with this version of the Shertz Beam.   I am
enthusiastic about this engine mount as it does not require expensive
machining, is light weight and if used in the 27 inch width should
provide plenty of room for your exhaust system.

The next step is for you to determine the distance from the face of the
  prop flange (using Tracy's drive?) to the firewall.
( drive + engine  + space between engine and firewall.)  Secondly, you
need to determine the vertical position of the thrust line in relation
to the firewall mounting holes.  The top holes will be ??? above the
thrust line and the bottom holes will be ??? below the thrust line.

Once you have this data, we give it to Paul and he will return with a
properly engineered  drawing.---Jerry

Mark Precious wrote:

Jerry,

That's really good news. I also picked up your other email about lead times
and very much understand your timeframe. The reason we came up with such a
short lead-in was that we managed to get hold of the engine ahead of
schedule and a number of things just seem to be falling into place quicker
than we expected. We also switched our thoughts on engine mounts based on
the latest info on ACRE.

I was talking with Tracy Crook today and we are now going to switch to the
RD1-C (instead of the RD1-B). I need to get all of the measurements together
to respond to your Q's. As we are looking at the standard Mustang II cowl
would you prefer the estimated placement of the prop flange based on the
cowl dimensions instead (which extend all the way to the firewall)?

I'll get back to you ASAP with the answers to your Q's

Thanks again

Mark

 
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