Paul,   next week I will celebrate my 68th birthday.  So far it has
 been fun.

  One change I am going to make is that I will no longer supply
 complete motor mounts.

 I am very interested in supplying a kit which includes the s-beam,
oil
 pan and rear beam ready to bolt on with the appropriate Barry
 Mounts.   This is for the 13B, the Renesis, and the 20B. I have
 templates for all these.  Once these are bolted to the engine and the
 engine is jigged in place in front of the fuselage,  it is just  a
 matter of fitting the tubes. I have built a number of engine
mounts in
 this manner and it is difficult to go wrong.

  BTW, while I prefer TIG welding, perfectly adequate welds can be
 done with a mig welder or Oxy/Actl.   For those who cannot weld,
it is
 fun to learn and local community colleges have courses, the EAA is
 ready to  help, there are a ton of books and videos to show the way.
 Just practice  until your welds are good enough for aircraft,
usually
 a couple of hours is enough.   Or a local gun slinger can be hired.

 Jerry


 Sorry to hear that Jerry. What are you going to do with the jig?
 Do you know a local welder than can take over the jig. Keep me
 informed.

 Paul Lamar

I will hold on to the jig for a bit to see if I change my mind. I
could not bring myself to hand it over to someone who is not a
talented, fully committed,  rotor head.  I will be glad to discuss the
fixture in detail  with anyone who would like to build their own.  It
is not a small project.

  I am convinced the best way is to use the actual fuselage/firewall
as a fixture.  An added advantage is that with the engine parked in
front  of the firewall, it is a good time to think about cooling,
intake and exhaust.

Jerry

With all due respect on the welding process,  MIG welding vs TIG
welding really shouldn't be put into the same category. To MIG weld
4130 correctly, a fair bit of training, special welder, more training
and a full understanding of the process should happen. Though the
process can be made to look good, without the above in mind, would be
hard pressed to prove that it is good.  There are a few companies
that do have all the requirements to make this happen.. but only a few.

    TIG  welding has been proven, tested over time and works. The few
things that can go wrong with TIG welding show up immediately and can
be corrected.  MIG  induced cracks and stress points in tubing do not
show up so quickly.

    This has been proven over and over by people far smarter than I.

We produce many specialized aircraft parts in the shop and try to
study all of this to full extent.


Scott- Iron Design L.L.C.