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Equipment selection
At Precision Aerobatics we have gone to great lengths developing the XR-52 in order to provide you with an aircraft like
no other. We have used many unique production techniques including our revolutionary PA FiberFusion® to create the
lightest, strongest aircraft possible. The extensive engineering and usage of carbon fiber along with our never ending
quest to reduce weight ensures the XR-52 is one of the lightest aircraft in its class, with an incredibly low wing loading.
These factors contribute to the amazing flying characteristics of the XR-52.
Throughout our extensive flight testing program we have trialed many different combinations of equipment in order to
obtain the best possible performance from the airframe. We noticed a direct relationship between the drive system chosen
and the aircraft performance and handling characteristics. It is our desire that your XR-52 should have the same amazing
capabilities as our designer envisioned and test pilots experienced. For this reason we have developed a number of our
own Integrated Performance Airframe-Drive Systems® or iPAs®.
All equipment within the iPAs® has been thoroughly tested to ensure it is perfectly matched not only to the airframe, but
to all other equipment and components. Most of the equipment has been specifically designed or modified to our exact
specifications to match the XR-52. We have tailored a number of different iPAs levels to meet the specific requirements of
each modeler, for further information on which iPAs is perfect for you please visit our website.
Each iPAs incorporates the following equipment. Please be aware that any deviations from these recommendations will
result in degraded flight characteristics.
• Motor - PA Thrust 45R with Rotorkool® technology (PA Item #AC-1886R 179gr, 780kv brushless motor (using a
motor that is larger or more powerful than that specified can result in damage to the motor box or failure of the
airframe). To find more details on the Thrust 45R visit www.ThrustMotors.com
• ESC - PA Quantum 45 Pro ESC with built in HV SBEC (6.0v/7.4v/8.0v) (PA Item # AC-2189HV).
• Propeller – VOX 12x7 wood (on 4s setup) (PA Item #AC-2103) or VOX 14x8 (on 3s setup) (PA Item #AC-
2111) An excellent match with overall performance for fast aerobatics, high energy/high performance and
extreme 3D when using PA V4 4s 2600mAh 25-50c battery pack.
VOX 13x5 wood (on 4s setup) (PA Item #AC-2105) or VOX 15x6 (on 3s setup) (PA Item #AC-2112) -
Excellent prop for slower 3D and flying in smaller fields. This prop offers an excellent balance of speed and thrust
for any type of flying using PA V4 4s 2600mAh 25-50c battery pack. Gives a feeling of flying a giant scale plane
with unlimited thrust.
We strongly recommend getting both propellers as they transformed the plane and gave a very different
feel. See which one suit best your personal style and preference.
Note: It is important to accurately balance your propeller prior to installation as poorly balanced propellers are
inefficient and cause vibrations which are detrimental to your model and motor. Use only propellers that are
adequately sized to be within the specified limits of your motor.
• Spinner - 2.17” lightweight pre-cut PA Carbon Fiber spinner (PA code # AC-2219). Perfectly matches the XR-52
cowl shape, retain optimum CG and avoid unnecessary weight.
• Connectors – use original Deans plugs or Amass XT60 connectors. We found that using cheap copies can cause
electronics issues.
• Battery – PA V4 4s (14.8V) 2600mAh 25-50c PA Item # AC-2221 or PA V4 3s (11.1V) 2200mAh 25-50c PA Item
# AC-1992
• Servos – 4x Nexatec NXT 80HV Digital Metal Gear Servo (PA item # AC-2334) or similar quality micro Servos.
• Extension lead – German made, thin gauge flexible extension lead for EP models 2M/ 6.5ft (PA item # AC-
1713).
• Micro Receiver – 4 or more channels full range 2.4Ghz (e.g. Spektrum AR6200 / AR610 / AR620 receiver).
AIRFRAME LIMITATION
The XR is designed for extreme aerobatics and 3D maneuvers and has robust construction that was thoroughly
tested. However due to the extreme thrust produced by the Thrust 45, the low flight weight of the model and its
large control surfaces, it is vital for the user to exercise discretion while executing high stress maneuvers so as to
avoid over loading the airframe.
EVERY airframe may it be an RC model or a full scale aircraft has its maximum limits. Your XR is not an exception.
The XR is also specifically designed to operate using the recommended gear described above. Keeping within the
design limitations greatly depends on your flying style and IS YOUR RESPONSIBILITY. Please read the Official
Academy of Model Aeronautics National Model Aircraft Safety Code at the end of this book.
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