RBC kits Spitfire MKI User manual

Thank you for purchasing Spitfire MKI from Rbckits
For the first time, R/C enthusiasts we have a choice in scale and fun flyer aircraft designs.
Our goal, through computer technology and state-of-the-art production techniques, is to offer aircraft
which in the past have not been modelled simply because they weren’t popular enough to justify mass
production. Our production techniques allow us to produce aircraft which, though not as popular and
well known as P-51s and P-47s, still offer historical significance (good or bad!), Good looks and flying
characteristics, and a uniqueness that is sure to turn heads wherever you take your airplane!
Your airplane has many unique features in its design:
CAD Design
CAD design allows strength to be built into the airplane without sacrificing weight. Accurate parts
design and placement ensures a perfect fit.
CAD Drawn Plans
The plans in this kit are not copied from a master set! They are originals drawn directly from the CAD
program where the airplane was designed. We do this because it allows us to use colour, which helps
you better visualize the various components of the airplane, and we can use better quality paper,
which greatly reduces the possibility of shrinkage.
Since you’re going to build directly on the plans, they ought to be the proper size! Also, parts
placement is guaranteed to be accurate, so you can build a better, straighter model.
Small and hard-to-produce parts are simply a computer file away, so you get a more accurate airplane.
Lightening Holes
Lightening holes are cut into all ribs and formers where possible and justified. This allows us to keep
the weight on each plane to a minimum without sacrificing strength.
The same program that generates the design and plans also drives the cnc cutter, so every part is
reproduced exactly as it was designed. cnc cutting also allows us to fit more parts on each sheet of

wood, reducing the waste, and lowering the cost to you.
Plastics
The cowl and dummy motor are accurately reproduced high quality Polystyrene
General Building Information
The Spitfire MKI can be built by a person with average building skills. It is designed for someone who
has built a trainer or low wing sport plane. No unusual building techniques are required, although
more difficult areas are explained in detail where necessary. Certain steps in the building process must
be followed as depicted, or you might find yourself digging back into the structure to redo something.
These areas are outlined when necessary. Occasionally hints will be included at certain building steps.
These are not required for completion, rather they are tips intended to ease a particular process. The
cnc router does cut through the wood, As a result of this, occasionally there will be fraying on the
surface of the wood. This is normal, and is only a surface problem and does not affect the wood in any
other way. Similarly, the cnc settings are optimized for wood thickness averages, so occasionally, due
to variations even in individual sheets, some areas might not cut through completely. Simply use care
in cutting the parts from the sheets; most of the time, the parts will break out of the sheets!
Hardware and a motor mount are not included in the kit. There are so many choices for quality
hardware that these choices are left to the individual preferences of the builder, rather than include
something in the kit that you’ll probably throw away anyway.
This aircraft is not a toy. It must be flown in a responsible manner according to the rules set forth by
Law. The builder assumes the responsibility for the proper assembly and operation of this product.
Rbckits shall have no liability whatsoever, implied or expressed, arising out of the intentional or
unintentional neglect, misuse, abuse, or abnormal usage of this product. Rbckits shall have no liability
whatsoever arising from the improper or wrongful assembly of the product nor shall it have any
liability due to the improper or wrongful use of the assembled product. Rbckits shall have no liability
for any and all additions, alterations, and modifications of this product.
Having said that, turn the page and start building the best airplane kits on the market!
Material you might need:
Balsa knife, Stanley knife, straightedge, building board 1500mm
ca glue medium, thin, thick you need approx. 6 bottles, building nails, tape
Or use white glue, and canopy glue, epoxy for the canopy and cowls
Some drilling and bending tools, wire cutter, safety goggles etc. etc.
For finishing you need:
glass 25 gram 3mtr and filler dope 1 litre, brushes sanding paper, paint of your choice
Wheels as on the drawing, controls, motor, battery etc.
All vacuumformings should be roughened up before gluing

Check the 3d pdf and pictures for additional information, a picture says more as a 1000
words
Wings:
Start with a flat building board with the size for the wing and fuselage
Place the drawing of the wing on the building board and protect it with plastic.
Start by making the bottom sheeting from the supplied balsa sheet, place the sheets on the work plate
and nail them down , use cello-tape to connect the edges, take them of and glue the edges with thick
ca , place on the work plate and sand down the glued edge, turn the sheet over and take of the cello
tape and sand the edges, now there will be one smooth side and a lesser smooth side , this is because
of the thickness of the balsa is not even, the non smooth side will be the inside of the sheeting.
take out all ribs and formers out of their sheets , you can mark the formers with a soft pencil if you like
, sand of all holding tabs.
Join main formers and place rib doublers , check the drawing for the correct position of the doublers
and or retract formers.
Mark the main-formers ribs on the bottom sheeting, place main-formers on sheeting place ribs , do

not glue yet , make sure for straightness .
if all seems ok then pin down the main former and start glueing the ribs with thin ca one by one to the
bottom sheeting, note roll the ribs over the sheeting and apply ca
Place trailing edge to the end of the ribs to the bottom sheeting.
Place sub leading edge to the bottom sheeting and to the ribs.
Do this the same for the other side of the wing., sand the sub leading edge to the ribs .
Make the mid sheeting from the supplied balsa , important is that the mid piece is straight so support

the sheeting when glueing the ribs and formers to it, place sub leading edge and sub ribs.
Place the trailing edge from 2x12 balsa sheet, place also some scrap balsa before the trailing edge to
support the wing fasteners
Place aileron formers from 10mm balsa in the ribs by taking out a small piece of the rib , place scrap
balsa fill in the horn and hinge positions