AIRCRAFT COVERING:
1. With all ARFs, varying temperatures and storage delays can cause covering material to loosen over
time and transportation. OMP recommends lightly going over all the covering with a covering iron
set at medium temperatures. Be sure to use a soft cover over your iron so you do not scratch the
covering surface. Be sure you go over all seams and edges of the covering to assure it is secure to the
airframe and other covering. Be careful not to apply too much heat or you may cause bubbles or
damage to the covering. A heat gun may also be used along with a soft cotton cloth to shrink and
adhere the covering. Again, be extremely careful when using a heat gun.
2. Some modelers prefer to seal the hinge gaps using strips of appropriate covering or clear trim tape.
We have found this to be helpful with models intended for higher speed flight or models with
unusually large hinge gaps. OMP aircraft utilize a very tight double beveled hinge line and do not
normally require this step. Sealing the hinge gaps is therefore left as an option for the modeler.
RUDDER INSTALLATION:
1. It is much easier to install the control horn before installing the rudder. Locate the carbon fiber rudder
control horn, ball links, and associated bolts and nylon-insert lock nuts. Use some fine sandpaper to
roughen up the center area of the control horn so that the glue adheres better. Using a sharp hobby knife
cut the covering away from the slots in the rudder and trial fit the control horn.
2. Mix up some 30 minute epoxy and coat the inside of the slot and the center of the control horn. Hint:
a scrap piece of 1/16” ply, tooth pick, or old hobby blade can be used to coat the inside of the rudder slot.
Slide the control horn in place and make sure it is centered perfectly by using a ruler to measure between
the pivot holes and the hinge line. Wipe any excess glue off with isopropyl alcohol and paper towels.
Set aside until cured.
