4
INTRODUCTION
Your new .90-1.20 YAK 54 ARF-
QB
is a highly aerobatic airplane. It is capable of both
precision and 3-D maneuvers. The aircraft builds easily, quickly, and precisely due to the
revolutionary
QB
(Quick Build) Design, LASER cut technology, and high quality included
hardware. We hope you enjoy building and flying your .90-1.20 YAK 54 ARF-
QB
.
Great care has been taken in both the design and manufacturing of the .90-1.20 YAK 54
ARF-
QB
to allow for the strongest and lightest construction possible. Only the highest
quality materials from the covering, paint, wood and hardware have been used in the con-
struction of this model.
The .90-1.20 YAK 54 ARF-
QB
has been individually hand built, covered and painted by
trained and experienced craftsmen with over 27 years of manufacturing experience. Using
CAD design, laser cut technology and jig-built assures accuracy in all stages of production.
The .90-1.20 YAK 54 ARF-
QB
is designed for engines in the .90 to 1.20 category. The
Saito 1.25 4stk and OS 1.20AX 2stk. engines are shown in the assembly instructions. The
aircraft was tested with both engines and has outstanding performance. The final choice of
engine is left up to the builder. A computer radio is recommended to allow the pilot to take
advantage of the full capabilities of this aerobatic aircraft.
IMPORTANT
Please read through this assembly manual carefully, before starting the as-
sembly of your new .90-1.20 YAK 54 ARF-
QB
. Inventory and inspect all parts and hard-
ware for any imperfections or damage. Please notify
Aeroworks immediately
if there
are missing or damaged parts.
INTENDED USE
This plane should not be regarded as a toy. This is an aerobatic plane and is recommended for pilots
who are beyond the trainer-stage and are comfortable with flying an aerobatic sport plane.
READ!
WARRANTY
READ!
It is important to notify Aeroworks of any damage or problems with the model within
30
days
of receiving your airplane to be covered under warranty. If you wish to return this air-
craft for any reason a 15% restock fee will be charged to the customer. In addition the cus-
tomer is responsible for all return shipping cost and all prior shipping cost will not be re-
funded. Parts will be exchanged or replaced once the original item is returned at the owner’s
expense. If you have any problems or questions, please contact Aeroworks.
Aeroworks cannot insure the skill of the modeler and cannot influence the builder during the
construction or use of this aircraft, and therefore, will not be accountable for any property
damage, bodily injury or death caused by this aircraft.
Aeroworks cannot insure the skill of the modeler and cannot influence the builder during the
construction or use of this aircraft, and therefore,
The purchaser/operator accepts all responsibility of any and all structural or
mechanical failures.
