your motor. Another fine source of information is one of the
electric flight calculators that are available for you to use free
online, (there is a good one on Castle Creations web site).
OUR FLIGHT TEST REPORT
After extensive test flying, our favorite setup for the Sbach
XA-41 is a 4250 (case dimensions) 770 kv brushless motor,
with a 75 amp ESC, 4S lipo battery pack, and an APC 13 x 6.5
E propeller. This combination gave outstanding flight
performance. When using a 4S 3200 mAh lipo, we had flight
times around 6 to 7 minutes, depending of course on throttle
management. A 4000 mAh lipo pack provided between 8 to 9
minutes of flight time. Your results may vary. Prop size, size
and quality of the battery pack, throttle management, air
temperature, etc., all have a bearing on electric flight
performance and flight time. Experiment to find the best
combination for your setup.
❑
BATTERY CHARGER
FOR SAFETY, AS WELL AS PERFORMANCE, CHARGE
LIPO BATTERIES ONLY WITH A LIPO BATTERY CHARGER!
In addition to providing the critical charging profile needed to
safely charge lipo batteries, a lipo battery charger also
includes the capability of "balancing" the available voltage in
the cells, ensuring that the battery pack is at peak capacity at
the end of the charge cycle. This translates to better flight
times and a longer life from the battery pack.
REQUIRED TOOLS
For proper assembly, we suggest you have the following tools
and materials available:
A selection of glues - SIG Thin, Medium, & Thick CA Glue
CA Accelerator, CA Debonder
SIG Kwik-Set 5-Minute Epoxy
Screwdriver Assortment
Pliers - Needle Nose & Flat Nose
Diagonal Wire Cutters
Small Allen Wrench Assortment
Pin Vise for Small Dia. Drill Bits
Hobby Knife with Sharp #11 Blades
Small Power Drill With Selection of Bits
Dremel
®
Tool With Selection of Sanding & Grinding Bits
Scissors
Sandpaper
Covering Iron & Trim Seal Tool
Masking Tape
Paper Towels
Alcohol and/or Acetone For Epoxy Clean-up
COMPLETE KIT PARTS LIST
The following is a complete list of all parts contained in this kit.
Before beginning assembly, we suggest that you take the time
to inventory the parts in your kit. Use the check-off boxes
❑
provided in front of each part description. Please also note
that the bolts and nuts required to mount your engine to the
motor mounts are not included and must be purchased
separately.
❑
(1) Fuselage
❑
(1) Fuselage Top Hatch
❑
(1) Clear Canopy
❑
(1) Right Wing Panel & Aileron, hinges not glued
❑
(1) Left Wing Panel & Aileron, hinges not glued
❑
(1) Aluminum Tube Wing Joiner
❑
(2) M6.5 x 45 mm nylon wing bolts with T-Head
❑
(1) Horizontal Stabilizer & Elevator, hinges not glued
❑
(1) Vertical Fin & Rudder, hinges not glued
❑
(1) Fiberglass Cowling
❑
(4) M3 x 10mm Screws, for cowl mounting
❑
(1) Aluminum Right Main Landing Gear
❑
(1) Aluminum Left Main Landing Gear
❑
(3) M4 x 20mm Socket-Head Bolts,
for mounting landing gear
❑
(2) 2-1/8" dia. Main Wheels
❑
(2) 4mm dia. Threaded Axles
❑
(4) 5mm Hex Nuts; for axles
❑
(4) 4mm ID Wheels Collars; for axles
❑
(1) Right Fiberglass Wheel Pant
❑
(1) Left Fiberglass Wheel Pant
❑
(4) Nylon Control Horns; for ail(2), ele(1), rud(1)
❑
(1) Control Horn Backplate; for elevator control horn
❑
(12) M2 x 12mm screws; for control horns
❑
(4) Metal Clevis; for ail(2), ele(1), rud(1)
❑
(4) 5.5mm long pieces of Fuel Tubing
❑
(4) Nylon Pushrod Snap Keepers; for ail(2), ele(1), rud(1)
❑
(4) M3 x 10mm Sheet Metal Screws; for cowling
❑
(4) M3 x 10mm Socket-Head Bolts; for wheel pants
❑
(4) M4 x 16mm Mounting Bolts; for mounting electric motor
❑
(4) M4 x 20mm Socket-Head Bolts; for main landing gear
❑
(4) M4 Flat Metal Washers; for main landing gear
❑
(4) M4 Split-Ring Lock Washers; for electric motor mount
❑
(4) M4 Blind Mounting Nuts; for motor mount
❑
(1) Tailwheel Assembly
❑
(1) Nylon Rudder Steering Control Rod Guide
❑
(2) M3 x 12mm Sheet Metal Screws; for tail wheel assembly
❑
(2) 250mm long Plastic Cinch Straps
❑
(1) 10mm x 10mm x 300mm Balsa Triangle
❑
(2) 22.5" long Wire Pushrods, threaded on one end,
including M2 Hex Nuts(2); for elevator & rudder.
❑
(2) 7 1/8" Wire Pushrods threaded on one end,
including M2 Hex Nuts(2);for Ailerons
COVERING MATERIAL
Your Sbach XA-41 ARF is covered with ORACOVER
®
, a
premium quality covering made in Germany, and sold in the
U.S. by Hanger-9 as Ultracote
®
.
Colors Used On Your Airplane:
ORACOVER
®
#52 Dark Blue, (Ultracote
®
HANU885)
ORACOVER
®
#10 White, (Ultracote
®
HANU870)
ORACOVER
®
#30 Cub Yellow, (Ultracote
®
#HANU884)
ORACOVER
®
#23 Ferrari Red, (Ultracote
®
#HANU866)
If sometime in the future you need replacement covering or
matching paint for repairs, they are available from your local
hobby dealer or online from Hanger-9.
How To Tighten Loose Covering
After you open your Sbach XA-41 and take all the covered
parts out of their plastic bags, the covering may begin to
wrinkle. This is not unusual and is no cause for alarm. Your
airplane was built and covered in a part of the world, which has
relatively high humidity, and therefore, the wood was likely
carrying a fair amount of moisture. When exposed to drier
air, the wood typically loses this moisture, dimensionally
"shrinking" in the process. In turn, this may cause some
wrinkles. However, wrinkles are easy to remove by just using
a hobby type heat iron.
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