Freewing Twin 70mm
B-2 Spirit Bomber User Manual
Wingspan: 2200mm Length: 886mm Empty Weight: 3200G [w/o Battery]
EN 1~10 11~20
1 Safety Notices 2 Basic Product Information 2 Package List
PNP Assembly Instructions 3 Install Main Wing 3 Install the "Beaver Tail" 4 Install Vertical Stabilizer 4 Install Battery 5 Pushrod Instructions 5 Center of Gravity 6 PNP Parameter Setting
Control Direction Test 7 Dual Rates 8 Pre-installed Component Overview
Servo Direction 9 Motor Specification 9 Additional Adjustment Instructions 10
11 12 12
PNP 13 13 14 14 15 15 16
PNP 17 18
19 19 20
Safety Notices
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.
B-2 Spirit Bomber
1
*UFN/P' +
7FSTJPO/P' +
886mm(34.88 in)
Basic Product Information
2200mm(86.61 in.)
Package List
Wingload48.2 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)
Other features
MaterialEPO
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)
No .
Nam e
1 Main wing
2 Fuselage
3 Fuselage tail
PNP
Pre-installed all electronic parts Pre-installed all electronic parts
ARF Plus
Pre-installed servo Pre-installed servo
No.
Nam e
4 Screw bag
5 Manual
6 Part bag
PNP
ARF Plus
2
B-2 Spirit Bomber
*UFN/P' +
7FSTJPO/P' +
PNP Assembly Instructions
Install Main wing
As the photo 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. CaptiveScrew(M4X16mm4PCS)
Install the Beaver Tail
As the photo shows 1.Use EPO-safe glue to attach the Beaver Tail onto the rear fuselage
B-2 Spirit Bomber
13
*UFN/P' +
7FSTJPO/P' +
PNP Assembly Instructions
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.
Install Battery
Battery hatch
Velcro
Battery
oPpuelnl tthheelahtacthchback and
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.
Battery size: 6S 5000mAh Battery weight :750g
5000 mAh
Battery recommended location
We recommend the following LiPo battery: 6S 22.2V 4000mAh~6S 22.2V 6000mAh Discharge rate of C > 35C
4
B-2 Spirit Bomber
*UFN/P' +
7FSTJPO/P' +
PNP Assembly Instructions
Pushrod instructions
Nose gear steering pushrod Iength
55mm
¤
Pushrod diameter Ø1.2mm
N ose gear door pushrod I e ngt h
Nose gear steering pushrod mounting hole N ose gear door pushrod m ount ing hole
33mm
¤
Pushrod diameter Ø1.2mm
Re a r gear door pushrod I e ngt h
73mm
Pushrod diameter Ø1.2mm
Re a r gear door pushrod m ount ing hole
1 2 3 4 5
Aileron pushrod Iength
Aileron pushrod mounting hole
1
2
85mm
Pushrod diameter Ø1.5mm
3 4
2
3
Elevator pushrod Iength
Elevator pushrod mounting hole
1
2
85mm
Pushrod diameter Ø1.5mm
3
4
5
2 3
B-2 Spirit Bomber
15
*UFN/P' +
7FSTJPO/P' +
PNP Assembly Instructions
Center of Gravity
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.
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
6
B-2 Spirit Bomber
*UFN/P' +
7FSTJPO/P' +
P NP Parameter Setting
Co ntrol Direction Test
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.
Ailero n
S tic k Le ft
S tic k Right
Ru dder
S tic k Le ft
St ick R ight
Elevator
Stick down
Rudder center position
Stick up
B-2 Spirit Bomber
17
*UFN/P' +
7FSTJPO/P' +
P NP Parameter Setting
Dual Rates
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.
Aile ron
Elevator H1
H1
H2
H2
Rudder
H1
Low Rate High Rate
Aileron
(Measuredclosesttothefuselage)
H1/H219mm/19mm D/R Rate100%
H1/H219mm/19mm D/R Rate100%
Elevator
(Measuredclosesttothefuselage)
H1/H235mm/35mm D/R Rate100%
H1/H235mm/35mm D/R Rate100%
Rudder
(Measuredfromthebottom)
H1Maximumopeningsize102mm D/R Rate100%
Important Flight Notes: 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.
Elevator
Elevator
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.
8
B-2 Spirit Bomber
*UFN/P' +
7FSTJPO/P' +
Pre-lnstalled Component Overview
Servo Direction
6 4
2 8
1
If you need to purchase another brand's servo, please refer to the following list to choose a suitable servo.
Position
Servo regulation No. Pos. / Rev. Cable length
Nose gear steering servo
9g Digital-Hybrid 1 Reverse 300mm
Rear cabin door(L)
9g Digital-Hybrid 2 Reverse 100mm
9
Rear cabin door(R)
9g Digital-Hybrid 3 Positive 100mm
3
Aileron(L)
9g Digital-Hybrid 4 Positive 200mm
Aileron(R)
9g Digital-Hybrid 5 Positive 200mm
Rudder(L)
9g Digital-MG
6 Positive 400mm
5
Rudder(R)
9g Digital-MG
7 Positive 400mm
Elevator(L)
9g Digital-Hybrid 8 Positive 100mm
7
Elevator(R)
9g Digital-Hybrid 9 Positive 100mm
Motor Specification
Item No.MI029521 2952-2100KV
Ø29.0 Ø4.0 4-M30
19.00
21.00
52
19.00
Unit :mm
Item N o .
Motor size Motor (K V)
Th ru st( g)
Cur rent(A)
Use voltage (V)
Use ESC (A )
EDF Weight (g)
Max p ower (W)
Efficien cy (g/w )
E7219
2952-2100KV 2100KV 2100-2200
50-55 22.2c6S 60
230
1170
1.83
B-2 Spirit Bomber
19
*UFN/P' +
7FSTJPO/P' +
Pre-lnstalled Component Overview
Jet adjustment instruction
1.The pre-installed 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.
Aileron 2 Elevator 2
Elevator 1 Aileron 1
2.If the direction of Elevator 1 and Elevator 2 is incorrect when the customer uses it, please exchange the position of the two ELE plugs on the control box, as shown in the following:
3.If the direction of Aileron 1 and Aileron 2 is incorrect when the customer uses it, please exchange the position of the two AIL plugs on the control box, as shown in the following:
Take-off light
Door
Gear
RUD
Gear ELE
RUD
s
ELE
AIL s
exchange the position of the two plugs
Take-off light
Door
Gear
RUD
Gear ELE
RUD
s
ELE
AIL s
exchange the position of the two plugs
10
B-2 Spirit Bomber
*UFN/P' +
7FSTJPO/P' +
1.,;,,! 2.,, 3. 4.14 5.EPO 6. 7. 8.,2M, 9. 10. 11.,. 12.,,
1414 .
B-2 Spirit Bomber
111
*UFN/P' +
7FSTJPO/P' +
886mm(34.88 in)
2200mm(86.61 in.)
!
48.2g/dm² 83dm² 9g(2pcs) 9g(7pcs) 2952-2100KV 70mm12 60AUBEC8A 3200g()
EPOABS 6S4000-6000mAh
PNP
AR F Plus
1
4
2
5
3
6
PNP
AR F Plus
12
B-2 Spirit Bomber
*UFN/P' +
7FSTJPO/P' +
PNP
1. 2.4 (M4X16mm4PCS)
1.
B-2 Spirit Bomber
113
*UFN/P' +
7FSTJPO/P' +
PNP
1.10mm; 2.
()
:6S5000mAh :750g
5000 mAh
: L=220W=90H=50(mm) 6S 22.2V 4000mAh~6S 22.2V 6000mAh (1pcs) > 35C
14
B-2 Spirit Bomber
*UFN/P' +
7FSTJPO/P' +
PNP
55mm
¤
: Ø1 .2 mm
33mm
¤
73mm
: Ø1 .2 m m : Ø1 .2 m m
1 2 3 4 5
1
2
85mm
: Ø1 .5 m m
3 4
2
3
1
2
85mm
: Ø1 .5 m m
3
4
5
2 3
B-2 Spirit Bomber
115
*UFN/P' +
7FSTJPO/P' +
PNP
-; -
,. ,
CG
CG 385mm
16
B-2 Spirit Bomber
*UFN/P' +
7FSTJPO/P' +
PNP
,
B-2 Spirit Bomber
117
*UFN/P' +
7FSTJPO/P' +
PNP
H1 H1
H2
H2
H1
H1/H219mm/19mm 100%
H1/H219mm/19mm 100%
H1/H235mm/35mm 100%
H1/H235mm/35mm 100%
1.; 2.2.5-3mm;
H1102mm 100%
3.E52; 4.
18
B-2 Spirit Bomber
*UFN/P' +
7FSTJPO/P' +
PNP
6 4
--- ---
2 8
1
() () () () () () () ()
9g- 1
9g- 2
9g- 3
9g- 4
9g- 5
9g- 6
9g- 7
9g- 8
9g- 9
300mm 100mm 100mm 200mm 200mm 400mm 400mm 100mm 100mm
9 3
5 7
Item No.MI029521 2952-2100KV
Ø29.0 Ø4.0 4-M30
19.00
21.00
: (mm)
E7219
2952-2100KV
52
KV
g
A
V
2100KV 2100-2200 50-55
22.2
A
60
19.00
g 230
2952-2100KV
W g/w
1170
1.83
B-2 Spirit Bomber
119
*UFN/P' +
7FSTJPO/P' +
PNP
1.B233
2 2
1 1
2.12 ELE :
3.12 :
Take-off light
Door
Gear
RUD
Gear ELE
RUD
s
ELE
AIL s
Take-off light
Door
Gear
RUD
Gear ELE
RUD
s
ELE
AIL s
20
B-2 Spirit Bomber
*UFN/P' +
7FSTJPO/P' +
References
Acrobat Distiller 10.0.0 (Windows)
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