Hi Paul I'm using this slow correspondence time to ask your opinion.

I'm deciding which plane and engine to pick.  So I could start building
from plan.  (less expensive).  Well now I know for sure a want a rotary
engine (which one? like 13turbo w/o the turbo so I could have ram air
induction,  renesis on a Mustang II?  will it fit?).  From the start,
my mine was made up for a rotary.  Don t ask me why but rotary just make
so much sense.  Rotary engine goes in an airplane like daddy goes with
mummy :)))

Now where I'm hesitating is the Mustang II.  A fellow at work is
building one from plans (great).  Where I'm concerned is that it seems
so much popular with the RV.  Also there is so much been made for them
and so little for the Mustang II  why not the Mustang?  I don't want to
find my self lost in the garage walking around in circle cursing at me
regretting making the wrong choice.  Because everything has already been
created for the plane (RV) but I have to re-invent the wheel for the
mustang.  I'm limited in human resources I'm a train conductor not an
engineer.  The Mustang has so much (for me) room for improvement reducing
drag and all that jazz it seem the sky is the limit in improving it (Am
I wrong or the RV would be just as fun to build from plans possible?).
I just had to get it of my chest.

Just about everywhere I look they talk about a RV 4, 6, etc etc...  not
much help from RWS Tracy he is a RV guy.   At RWS they have only one
customer with email address doing Mustang II and rotary.  Did not find
much much more than this one guy.

Where is the beef???

Marc Montreal Canada

I'll let people answer that have built both.

Paul Lamar ...No rotor no motor.

Hi Marc - I've flown quite a bit in a buddies Mustang II with a modified
O-320.  Probably
about 175 - 180 hp.  There are some photos of it on the SDSEFI.com website.
Cruises 175 mph
on about 7.5 gph.  WOT about 210. Very nice handling.  The problem with the
Mustang is landing speed.
Approach speed on final is 100 mph, touchdown in a wheeler type landing
about 80.
His is a taildragger and on a 4700 ft runway tries to touch the mains as
soon as possible
and then keeps the tail up clear to midfield before the tail touches then
usually rolls out
the rest of the runway so as not to use the brakes too much.  He can get off
about
3000 ft if he really gets on the brakes.  Also, the tail is really wiggly on
the runway and
takes a lot of work and attention to keep straight.  I think the tail moment
is a bit too short
and could use a larger rudder.  RV's have much nicer ground handling and
land far slower.
The Mustang is just a much older design.  Its a real runway hog.   Other
than that its a great design.

                                                   Glenn

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