Freewing Twin B-2 Spirit Bomber User manual

EN
中
1~10
11~20
Wingspan: 2200mm
Length: 886mm
Empty Weight: 3200G [w/o Battery]
B-2 Spirit Bomber
User Manual
Freewing Twin 70mm

重要提示
产品规格参数
包装列表
PNP组装步骤介绍
主翼组装
机身尾部拆件组装
垂尾组装
电池组装
舵面控制钢丝尺寸及安装孔位
重要附加说明
重心示意图
PNP调试介绍
模型舵面测试
舵量范围
预装电子配件介绍
舵机介绍
电机介绍
飞机调机说明
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12
12
13
13
14
14
15
15
16
17
18
19
19
20
Safety Notices
Basic Product Information
Package List
PNP Assembly Instructions
Install Main Wing
Install the "Beaver Tail"
Install Vertical Stabilizer
Install Battery
Pushrod Instructions
Center of Gravity
PNP Parameter Setting
Control Direction Test
Dual Rates
Pre-installed Component Overview
Servo Direction
Motor Specification
Additional Adjustment Instructions
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2
2
3
3
4
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5
5
6
7
8
9
9
10

1
Item No.:FJ317
Version No.: FJ317-01
B-2 Spirit Bomber
1
1. This is not a toy! This B-2 is a highly advanced flying model aircraft and requires intermediate to advanced piloting
skills. Beginners must assemble, configure, program, and operate under the guidance of proficient pilots.
2. Before installation, please read through these instructions carefully and operate strictly under instructions.
3. Due to the nature of RC Aircraft, Freewing and its vendors will not be held responsible for any losses.
4. The minimum recommended age for pilots with intermediate to advanced piloting skills is 16 years old.
5. This plane used EPO material with surface spray paint. Avoid all contact with chemicals and solvents.
6. Avoid flying in areas such as public places, high-voltage-intensive areas, near the highway, near the airport or any
other place where laws and regulation clearly prohibit RC model flying.
7. Do not fly in bad weather conditions such as thunderstorms, rain, snow, or extreme high or low temperatures.
8. Always inspect the model before flight. Ensure the flight battery is fully charged and in safe working condition.
9. Discard the flight battery properly if it is damaged or defective.
10. Always ensure the radio transmitter is turned on before and whenever the flight battery is plugged in.
11. Do not attempt taking off from or landing onto unsafe surfaces. Avoid uneven surfaces, tall grass, and gravel.
Safety Notices

B-2 Spirit Bomber
Item No.:FJ317
Version No.: FJ317-01
2
Basic Product Information
Package List
Pre-installed all electronic parts Pre-installed servo
Pre-installed all electronic parts Pre-installed servo
1
2
3
4
5
6
No. Name No. Name
Main wing
Fuselage
Fuselage tail
Manual
Part bag
PNP ARF Plus PNP ARF Plus
Screw bag
Wingload：48.2 g/dm2
Wing Area: 83 dm2
Motor: 2952-2100KV I/R Motor
Servo: 9g MG digital servo (2pcs)
9g Hybrid digital servo (7pcs)
ESC: 60A with 8A UBEC
Ducted fan: 70mm 12-blade fan
Weight: 3200g (w/o Battery)
Material：EPO
Aileron: Yes Elevator: Yes
Rudder: Yes
Landing gear: Retract Landing Gear
Cabin door:Yes
Scale Pilot figure:Yes
Li-Po Battery: 6S 4000-6000mAh (1pcs)
Other features
886mm(34.88 in)
2200mm(86.61 in.)

1
Item No.:FJ317
Version No.: FJ317-01
B-2 Spirit Bomber
3
PNP Assembly Instructions
Install Main wing
Install the Beaver Tail
CaptiveScrew(M4X16mm4PCS)
As thephoto shows
1.Insert the ribbon wire to the main wing control board.
2.Install the main wing on the fuselage and use 4pcs screws to fix.
As thephoto shows
1.Use EPO-safe glue to attach the Beaver Tail onto the rear fuselage.

B-2 Spirit Bomber
Item No.:FJ317
Version No.: FJ317-01
4
PNP Assembly Instructions
5000
mAh
Battery hatch
Battery
Pull the latch back and
open the hatch
Velcro
Before connecting the battery and receiver, please
switch on the transmitter power and make sure
the throttle stick is in the lowest position. Bind your
receiver to your transmitter according to your
transmitter’s instruction manual.
We recommend the following LiPo battery:
Discharge rate of C
6S 22.2V 4000mAh~6S 22.2V 6000mAh
> 35C
Battery size: 6S 5000mAh
Battery weight :750g
Battery recommended location
Install Battery
主翼组装
Install Vertical stabilizer (This step is an optional step that can be installed or not)
As the photo shows
1.With a hobby knife, score the molded line down to a depth of 10mm.
2.Use EPO-safe glue to fix the clear plastic vertical stabilizer onto the fuselage tail.

1
Item No.:FJ317
Version No.: FJ317-01
B-2 Spirit Bomber
5
PNP Assembly Instructions
Pushrod instructions
55mm
()2-3/16 ″
85mm
(3-5/16 )
1
4
2
3
5
2
3
85mm
( 3-5/16 )
1
4
2
3
1
4
2
3
5
2
3
33mm
73mm
()2-7/8
(1-5/16 )
″
Aileron pushrod Iength Aileron pushrod mounting hole
Nose gear steering pushrod Iength Nose gear steering pushrod mounting hole
Nose gear door pushrod Iength Nose gear door pushrod mounting hole
Rear gear door pushrod Iength Rear gear door pushrod mounting hole
Elevator pushrod Iength Elevator pushrod mounting hole
.Ø1mm2 Pushrod diameter
.Ø1mm2 Pushrod diameter
.Ø1mm2
Pushrod diameter
.Ø1mm5 Pushrod diameter
.Ø1mm5
Pushrod diameter

B-2 Spirit Bomber
Item No.:FJ317
Version No.: FJ317-01
6
PNP Assembly Instructions
Correct Center of Gravity (”CG”) is critical for enabling safe aircraft stability and responsive control. Please refer to the
following CG diagram to adjust your aircraft’s Center of Gravity.
- Depending on the weight of your chosen flight battery, move the battery forward or backward to adjust the Center of Gravity.
- If you cannot obtain the recommended CG by moving the battery to a suitable location, you can also install a counterweight to
achieve correct CG. However, with the recommended battery, a counterweight is not required. We recommend flying
without unnecessary counterweight.
Center of Gravity
As the photo shows, the recommended starting CG position
has been molded into the bottom of the fuselage.
Please confirm the CG based on this marked position.
CG 385mm

1
Item No.:FJ317
Version No.: FJ317-01
B-2 Spirit Bomber
7

Aileron
StickLeft StickRight
Rudder
Stick Left Stick Right
Stick up
Stick down
Elevator
Rudder center position
After assembling the aircraft, it is critical to verify that all control surfaces move in the correct direction corresponding
with the inputs you give from your radio transmitter. Power on your radio and then the model, toggle Throttle Hold,
then proceed to verify all control inputs and movements are correct.
Control Direction Test
PNP Parameter Setting

Elevator Elevator
H1
H2
H1
H1
H2
B-2 Spirit Bomber
Item No.:FJ317
Version No.: FJ317-01
8
Aileron Elevator
Rudder
According to our testing experience, use the following parameters to set Aileron/Elevator Rate. Program your preferred
Exponential % in your radio transmitter. We recommend using High Rate for the first flight, and switching to Low Rate if
you desire a lower sensitivity. On successive flights, adjust the Rates and Expo to suit your preference.
Dual Rates
PNP Parameter Setting
LowRate
HighRate
H1/H219mm/19mm
D/R Rate ：100%
H1/H219mm/19mm
D/R Rate ：100%
Aileron
(Measuredclosesttothefuselage)
H1Maximumopeningsize102mm
D/R Rate ：100%
Rudder
(Measuredfromthebottom)
H1/H235mm/35mm
D/R Rate ：100%
H1/H235mm/35mm
D/R Rate ：100%
(Measuredclosesttothefuselage)
Elevator
1.Do not hit the rudder abruptly during high-speed taxiing, otherwise this jet may roll over;
2.We recommend 2-3mm of UP Elevator trim while stationary. Program this before your first flight and refine its
position to suit your flying preferences.
3.The Freewing B-2 uses the Freewing E52 Gyro to fly
4.The integrated control box mixes both the delta wing function and the aileron mix. Set your radio to
NORMAL WING mode. Do not set your radio to a delta wing mix, which will confuse the onboard control box.
Important Flight Notes: