Kyosho
"Majestic 1400 ARF" by Nicola Rossi
I
was very interested, when Kyosho proposed a little version of
Christophe
Paysant-Le Roux's(CPLR)
'MAJESTIC' ,twice winner of the IAM.
Having a little plane to practice the F3A schedule helped solve
my space problems .
The Kit
Like it is a must for Kyosho , the kit box was very impressive
with some pretty photos of the plane. When I opened the box of
the Majestic, I was very impressed by the precision and
very light craftsmanship of Kyosho. It is an ARF and all the work
and covering is well made by Kyosho . Also included in the kit,
are the basic components: fuel tank, engine mount, push-road and
clevis to finish the plane. A very nicely molded clear canopy
and coloured fiberglass cowling and wheel pants came with the
kit. A well made decal sheet was provided, but I preferred to
replace them with markings by my self-made vinyl cutter(Roland
Stika cutter).
Build Process
The building process is without problems and is well-supported
by the very detailed instructions. The 2 wings are glued together
with the spar and I fitted the ailerons with paper hinges. This
hinges, in my opinion, make a perfect fit without a gap from the
wing to the aileron(Webmaster- We use them too). The linkages
are made by the provided items , but I may replace them with some
ball-links to improve control precision. The fuselage is without
problems. I mounted the engine, and like I always do, I fitted
the tank on the CG. I finished the fuselage by fitting the canopy,
the silver canopy stripe, the undercarriage, the cowl and the
wheels and pants .
The tail section came
almost finished and I needed only to fit the control horns and
hinges. All this little precise work , will become important,
during the airplane setup. I joined the fuselage and the wing
and took big care to ensure that all is symmetrical. Then I attached
the horizontal tail, again paying attention to the symmetrically
fit of wing vs. tail, and have it glued in the right position.
The gluing of the rudder finished the construction.
Installation
The CG was fitted without ballast, with only the battery at 125mm
from the trailing edge . Pay attention to not use anything else
except this amount. The Radio and Servos choosing took to me some
time, to keep the weight down(a light plane flies better), so
I chose to use 2 mini JR
3021 for the ailerons, 2 mini JR
3021 for the two elevators , 1 JR
2035 for rudder push-pull and 1 JR
micro 231 for the engine . All this servos are linked to a Futaba
PCM receiver and 9ZAP radio. The Rx battery is a Sanyo 5 cell
of 1100 mAh.
The choice of engine took me some time. I wanted to have lots
of vertical, and needed to have a well and positive response to
for the throttle . The new YS 63FZ(available @ Singapore
Hobby Supplies)
easily spun a APC 14X5 at 11,200 Rpm/s on ground, no problem!!!
The result was all that I demanded.
My Majestic Incidence
Setup:
Horizontal Tail : 0°
Wing : 1,0°
Engine : 0°
Engine Thrust Angle : Right 2.5° (This my appear too much
but I' m using a 14 X 5 propeller)
The control rate was
made simple by the use of twin elevator servos and the use of
my 9ZAP by Futaba.
Using the conditions setting, and at a flick of a switch, I can
choose between F3A flight or 3D flight performance. I choose this
controls rate, as CPLR
suggested in a magazine:
F3A
Style
Ailerons : +/- 12° Exp. 30% ( +or- on Exponential depends
on your Radio; - FUTABA , + JR )
Elevators : +/-13° Exp. 20%
Rudder : +/- 50° Exp. 40%
3D
Style
Ailerons : +/-22° Exp. 45%
Elevators : +/- 27° Exp. 40%
Rudder : The maximum rate you may have Exp. +/-40%
Flight Characteristics
The flying characteristics of the Majestic impressed me
very much . On F3A condition, the plane is very smooth and predictable.
It appears to flies like a big F3A plane. It is very precise.
If you add rudder, there is no roll and all the controls are smooth.
You will be able to perform all F3A maneuvers and to practice
on a smaller and a simpler plane(CPLR uses this Majestic to
test out new TOC maneuvers)!!
Another impressive aspect is that there is no inertia of the plane.
You may stop the roll and snaps when you want. Knife edge and
snaps roll are great. Ultra low roll and point rolls are very
nice, like the bigger brother. Flipping on 3D condition the Majestic
became a crazy horse. You may perform flat spins, knife edge spins,
knife edge loops(& squares too!!) and torque rolls . The conditions
the stall remain predictable, even in this conditions. I think
that CPLR
made a big impact with the Majestic(Note: Even Sean
McMurtry & Chip Hyde(supposed to) flew the Majestic for IAM).
I think that Majestic is the name that really fit this
plane !!
The only change should
be to enlarge the ailerons, as they a bit small to perform hovering.
At zero airspeed, the ailerons loses effectiveness. By enlarging
the control surfaces, it may however, be detrimental for the flight
characteristics of the Majestic. I made the following changes,
which are oriented to improve flight performance:
