.
Keep in mind that the numbering sequence used in these instructions was chosen as the best way to explain the building
of each major component and is not intended to be followed in exact one-two-three fashion. Start on the wing at NO.1 and
after doing as many steps as is convenient, flip over to "FUSELAGE CONSTRUCTION" and do a step or two there, then
over to "TAIL SURFACECONSTRUCTION" and so forth. You will, of course, arrive at points where you can go no farther
until another component is available. Plan ahead! Read the instructions completely and study the full size plans before
beginning construction.
Radio Equipment Requirements
The RISER requires only elevator and rudder control, so any radio with two or more channels may be used. If you plan to
use spoilers, a radio with at least three channels is required. Be certain that your radio system's frequency is approved for
use in R/C model aircraft. Using a frequency assigned to R/C surface vehicles (cars, boats) not only endangers your
model to interference from model car or boat drivers (who may not even be in sight), it is also against the law.
Glues
There are so many different glues available today for model construction that it can be confusing even for the experienced
modeler. To simplify matters, most glues can be classified as one of four basic types:
1. Fast cyanoacrylate adhesives (abbreviated in these instructions as "CA") such as SIG CA, Hot Stuff, Jet, etc ...
2. Easy-to-use water-based glues such as SIG-BOND (yellow) and SIG SUPER-WELD (white).
3. Super strong (but heavier) two-part epoxy glues such as SIG KWIK-SET (5-minute cure) and SIG EPOXY (3-hour
cure).
4. Traditional solvent-based model cements such as SIG-MENT.
Each of these types has different characteristics and advantages. Often times, the choice of which type to use is strictly a
matter of personal preference based on your prior experience with a previous model. Some of the steps in these
instructions call out the type of glue to use for that particular assembly. In other areas you can use your own judgement as
to which type is best suited to the purpose and to your building schedule.
For general construction of the RISER, we recommend that you use cyanoacrylate adhesives. These adhesives have
become very popular with modelers because of their fast drying times. With CA, you can virtually build a structure from
start to finish without having to wait for the glue to dry. Most brands, including SIG CA, come in three different viscosities:
thin, medium, and thick.
Thin CA has a watery consistency and uses capillary action to penetrate and soak into a joint. Since it is so thin and
dries so quickly, the parts to be joined must be in firm contact with each other before application of the glue. Use
thin CA for the initial assembly of balsa parts over the plans.
Medium viscosity CA (SIG CA PLUS) can also be used for initial assembly in the same manner as the thin, but it
takes a little longer to dry. Joints made initially with thin CA should be reglued with medium CA for additional
strength. Medium CA should also be used when gluing plywood, spruce, or hardwoods.
Thick CA (SIG CA SLOW) dries slowly enough that it allows you to apply the glue to the parts before assembling
and gives you time to reposition the parts if necessary. Thick CA is good for gluing doublers to fuselages and
forming fillets in high stress areas.
The drying time for all CA's can be speeded up by spraying an accelerator (such as SIG KWIK-SHOT) right on the joint.
SIG-BOND is handy for gluing things such as wing leading edge sheeting or center sheeting where you need to apply glue
to several parts in one operation. You should also have on hand some epoxy glue, both 5-minute and slow dry, for areas
subject to high stress or joints involving metal parts.