REFLECTOR: Mounting up your IO-540

[Terry Miles]

Andy

Thanks for thinking about the rest of us.  It's the glue of this community
of gluers.  

Terry

 

  _____  

From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On
Behalf Of Andy Millin
Sent: Thursday, January 03, 2008 3:02 PM
To: 'Velocity Aircraft Owners and Builders list'
Subject: REFLECTOR: Mounting up your IO-540

 

Happy new year all!

 

If you are not planning on using a Lycoming IO-540 engine, then you won't
need the information that follows.

 

I recently had a wonderful opportunity for Recreation and Education!  So
much Recreation and Education, that I thought I might just share it with the
group.

 

I am using a parallel valve IO-540.  It has come to my attention that
Lycoming makes two different types of engine mounting brackets for the 540
series.  This includes the K series, 300 HP.

 

The dynafocal 1 mount uses Lycoming part number 70456.  $369/ea. new from
Lycoming.  This mount has a 30 degree rake angle and a mounting hole 1.380
I.D.  This is the mounting bracket that Velocity has designed their tubular
engine mount for.  Velocity also includes the Barry mounts for this bracket
in the kit.  If you are planning on using the Velocity install kit, you
might want to make sure you have the correct brackets.

 

Dynafocal 2 uses Lycoming part number 72306.  $473/ea. new from Lycoming.
This mount has a 20 degree rake angle and a hole 2.000 I.D.  Different size,
different geometry.  You can't just buy larger Barry mounts and bolt
everything together.