Great Planes Yak-54 1.60 ARF - GPMA1411 - Manual (Page 4)

A building stand or cradle comes in handy during the build. We
use the Robart Super Stand II (ROBP1402) for all our projects
in R&D, and it can be seen in pictures throughout this manual.
Since the Yak 54 1.60 ARF is a large model capable of
extreme aerobatics, standard servos should not be used to
operate the control surfaces. Servos with a minimum torque
rating of 98 oz-in [7.1 kg-cm] are required except for the
throttle servo, which may be operated by a standard servo.
The following servo extensions and Y-harnesses were also
used to build the Yak 54 1.60 ARF as shown in the manual.
• (2) 36" [910mm] servo extensions for elevator servos
(HCAM2726 for Futaba J-connector)
• (2) 36" [910mm] servo extension for tail mounted rudder
servos (HCAM2726 for Futaba J-connector)
• (2) 24" [610mm] servo extensions for aileron servos
(HCAM2721 for Futaba J-connector)
• (2) 6" [150mm] servo extensions for forward mounted
rudder servos (HCAM2701 for Futaba J-connector)
• (1) 12" [305mm] servo extension for throttle servo
(HCAM2711 for Futaba J-connector)
Optional: (If using a radio system that does not support
mixing of the elevator, rudder, and aileron servos,
Y-harnesses will be required)
• (2) Hobbico ® Pro HD Y-Harness (HCAM2751 for Futaba
J-connector)
• (1) Reversing Y-Harness (for elevator servos)
• A battery pack with a minimum of 1500mAh should also
be used. When flying large models such as this,
ALWAYS check the battery condition before each flight.
The recommended engine size range for the Yak 54 1.60
ARF is 1.5 to 1.8 cu in [25–30 cc] two-stroke glow engine,
1.8 to 2.1 cu in [30–36 cc] four-stroke glow engine, or 1.9 to
2.6 cu in [32–43 cc] gasoline engine. We recommend either
the O.S. ® 1.60 FX glow engine (OSMG0661) or the Fuji-
Imvac ™ BT-43 EI ™ gasoline engine (FJIG0143). Both of these
engines will allow the Yak 54 1.60 ARF to perform the 3D
maneuvers it was designed for and the installations of both
engines are covered in this manual. Do not install an
engine larger than recommended!
This is the list of Adhesives and Building Supplies that are
required to finish the Yak 54.
❏
Pro ™ 30-minute epoxy (GPMR6047)
❏
Pro 6-minute epoxy (GPMR6045)
❏
1/2 oz. [15 g] Thin Pro CA (GPMR6001)
❏
1/2 oz. [15 g] Medium Pro CA+ (GPMR6007)
❏
Hobbico 60 watt soldering iron (HCAR0776)
❏
Hobby Heat ™ Micro Torch II (HCAR0755)
❏
Silver solder w/flux (GPMR8070)
❏
Petroleum jelly (Vaseline ® )
❏
3' [900 mm] Standard silicone fuel tubing (GPMQ4131)
❏
R/C foam rubber (1/4" [6 mm] – HCAQ1000)
❏
Microballoons (TOPR1090)
❏
Drill bits: 1/16" [1.6 mm], 3/32" [2.4 mm], 7/64" [2.8 mm],
9/64" [3.6 mm], 5/32" [4 mm]
❏
Denatured alcohol (for epoxy clean up)
❏
8-32 Tap and drill set (GPMR8103)
❏
#1 Hobby knife (HCAR0105)
❏
#11 Blades (5-pack, HCAR0211)
Here is a list of optional tools mentioned in the manual and
others items that will help you build the Yak 54 1.60 ARF.
❏
Fuel filler valve for glow fuel (GPMQ4160)
❏
Fuel filler valve for gasoline (GPMQ4161)
❏
1/2 oz. [15 g] Thick Pro CA- (GPMR6013)
❏
Milled fiberglass (GPMR6165)
❏
Tap handle (GPMR8120)
❏
Stick-on segmented lead weights (GPMQ4485)
❏
Large scale single-sided servo arm (GPMM1100)
❏
Epoxy brushes (6, GPMR8060)
❏
Mixing sticks (50, GPMR8055)
❏
Mixing cups (GPMR8056)
❏
Builder’s Triangle Set (HCAR0480)
❏
36" Metal ruler (HCAR0475)
❏
Pliers with wire cutter (HCAR0630)
❏
Hobbico Duster ™ can of compressed air (HCAR5500)
❏
Masking tape (TOPR8018)
❏
Panel Line Pen (TOPQ2510)
❏
Rotary tool such as Dremel ®
❏
Rotary tool reinforced cut-off wheel (GPMR8200)
❏
Servo horn drill (HCAR0698)
❏
Dead Center ™ Engine Mount Hole Locator (GPMR8130)
Optional Supplies & Tools
Adhesives & Building Supplies
ADDITIONAL ITEMS REQUIRED
Engine Recommendations
Radio Equipment
Building Stand
4