Buteo F4 with foamed polypropylene Wing
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                                                                        VTR 1 (You Tube)

                                                                         VTR 2 (YouTube)

                                                                         VTR 3 (YouTube)




width 111 cm
length 70 cm
weight 432 g
Lipo 3cell 11.1V 900mAh G3 55 g
Body Cover 35 g
Total flight weight 522 g


the fuselage equal with YardHawk
Receiver: Castle Creations Berg 7P 7Ch FM Programmable Vert Rx
cryistal: Castle Creations Micro Crystal Berg 52(72MHz)
Servo: elevon (Hitec HS-65B MicroServo), rudder (Hitec HS-65MG MicroServo)
Motor: Hoffman Magnetics SST-24 Super Sport Series Outrunner 2470kv
ESC: Castle Creations Thunderbird 36 Brushless ESC
Battery: Lipo 3-cell. 11.1V 900mAh G3
Control: 4CH (a motor, elevon 2ch: rotary rudder )
Gliding sysytem GLDAB
Wings: made by 45 times foamed polypropylene Core, 4mm and 2mm carbon rods, Ripstop(0.65oz), Power rip, Super Seam Tape 9672LE
Wing profile S4083 modefied
Gear
Main Gear 32P64T Aluminum 3/8Face
First gear 32P56T Acetal
Pinion Gear: 32P16T
















width 111.0 cm
length 70.0 cm
weight 432.0
Lipo 3cell 11.6V 600mAh 55.0
Total flight weight 487.0 (522g with Body35g)
































the fuselage equal with YardHawk
Receiver: Castle Creations Berg 7P 7Ch FM Programmable Vert Rx
cryistal: Castle Creations Micro Crystal Berg 52(72MHz)
Servo: elevon (Hitec HS-65B MicroServo), rudder (Hitec HS-65MG MicroServo)
Motor: brushless motor Waypoint 2209 1820Kv -> Axi Brushless Out-Runner 2212/12 Gold Series
ESC: Castle Creations Thunderbird-18 Brushless ESC -> Castle Creations Thunderbird 36 Brushless ESC
Battery: Lipo 3-cell. 11.6V 600mAh
Control: 4CH (a motor, elevon 2ch: rudder )
Gliding sysytem GLDAB
Wings: made by 45 times foamed polypropylene Core, 4mm and 2mm carbon rods, Ripstop(0.65oz), Power rip, Super Seam Tape 9460PC
Wing profile S4083 modefied
Gear Main Gear 32P64T  Stainless Steel
First gear 48P84T https://sdp-si.com/ss/PDF/79001084.pdf
Pinion Gear: 48P 24T