Hi all,
Am I reading this right. Are you after the Mustang
fire wall dwg and
mounting details for the hard points?
Regards Don
Yes Don, and the position of the thrust line and the
length of cowl from
firewall to spinner.
Paul Lamar
Don,
Do you have easy access to a firewall dwg and
hardpoints?
Our thrustline, and length from firewall to prop
flange is a little different from memory. We asked
Jerry for just a little more room between engine and
firewall and wanted to move the weight forward a
little).
I'll get those details together this weekend (unless
Jerry Hey gets this mail.. do you still have the specs
of our engine mount Jerry??)
Mark
The spinner to prop flange is correct on the dwg. If you plan to change
this or use wing tanks I would suggest you check the CG. I can send you
a spread sheet to work it out.
I am using a Prince Tip propeller of wood carbon fiber which is light. I
am also using the Renesis engine. Should you go for a turbo or any other
I would look close at the CG. I have also a hard top which added some
weight to the plane. Light I am at 380 kgs. I have found it is best to
work and check weight and balance as you go. I had a major shift when I
changed from a turbo engine to the Renesis. Please check.
Regards Don
The prop flange face to firewall distance is 40 inches. I don't recall
changing the thrust line from stock but if you can send me the location
of any firewall attachment point relative to the stock thrust line, I
can compare it with the fixture and tell you what the thrust line is as
built. I am guessing that it is stock. Jerry
Don wrote.
The firewall to prop flange is 41.75" as per my dwg. Do you want me to
dimension this dwg in " ". Do you have Auto cad, if not I can dimension
the hard points. Do you have the designers dwg's? It should all be there
for you to see. In the end you will still need to check the CG of your
own instalation as to where you put the cooling system CG, battery.
injection pumps ect as this will make a lot of difference. I will cation
all on this list that any CG change needs to be looked closely. I have
found through some research that the designer will take the most aft CG
for the pilot and passenger and as with the Mustang this will produce a
high aft CG. If you do a check to find you own CG at the inclined
position in your plane you will find it very different. To evaluate
this at a early stage will help in the design of your rotary instalation
and will produce a better flying machine. What I am saying is don't look
at the CG of the Ly coming but look at the CG of you own plane and how
you want to fly it. You don't want to have to put 30kg of lead in
different positions according to load to make it fly good. Of all that I
have learn t with building aircraft the weight and balance is so
important. Trim right you will get more speed for less HP.
Don
Metric is OK Don.
Paul Lamar
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