Air Craft Datasheet

GWS EPS-350C

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[ View2 ]

2:

S2:M0.4x56T

S2:M0.4x20T

56T/20T=2.80

1:

S1:M0.4x58T

S1:M0.4x18T

58T/18T=3.22

A:

Sa:M0.4x60T

Sa:M0.4x16T

60T/16T=3.75

B:

Sb:M0.4x62T

Sb:M0.4x14T

62T/14T=4.43

C:

Sc:M0.4x64T

Sc:M0.4x12T

64T/12T=5.33

D:

Sd:M0.4x66T

Sd:M0.4x10T

66T/10T=6.60

◎ HIGH SPEED      Δ  HIGH THRUST

GEAR TYPE 2 1 A B C D
PROPELLER
6030 ◎ ◎ ╳ ╳ ╳ ╳
6050 ╳ ◎ ╳ ╳ ╳ ╳
7035 Δ ◎ ╳ ╳ ╳ ╳
8040 ╳ Δ ◎ ◎ ╳ ╳
8043 ╳ Δ ◎ ◎ ╳ ╳
8060 ╳ ╳ Δ Δ ◎ ╳
9047 ╳ ╳ ╳ Δ ◎ ◎
9050 ╳ ╳ Δ ◎ ◎ ◎
9070 ╳ ╳ ╳ ╳ ◎ ◎
1047 ╳ ╳ ╳ ╳ Δ Δ
1060 ╳ ╳ ╳ ╳ Δ Δ
1080 ╳ ╳ ╳ ╳ ╳ Δ
1147 ╳ ╳ ╳ ╳ ╳ Δ
1170 ╳ ╳ ╳ ╳ ╳ Δ
1260 ╳ ╳ ╳ ╳ ╳ ╳

◎ SCALE

9070x3 ╳ ╳ ╳ ╳ ◎ ╳
1080x4 ╳ ╳ ╳ ╳ ╳ ◎

Battery : 600-1100mAh NiMh (6.0~8.4v)
E-Tec ET-P1200-2S
E-Tec-P1200-2S2P (2400mAh) for 9.0A+
   The new 350 motor is the same series as in the EPS-300C (Mabuchi RK-370), but is a higher Kv motor with timing set for the GWS offset gearbox.  This means that it is best suited to the "B" to "D" ratios, which reduce load enough to turn 8" to 10" props.  For the lower ratio boxes (types 2 to A) the EPS-300C may work better, especially for 280-class models running at 4-5A.
   We've been running the EPS-350-C in the GWS warbirds, and have found that the 10x6 and 10x8 props work very well with E-Tec 1200mAh 2S pack.  With the 10x8, the Mustang does loooong knife-edge flight!!  Stay within 8.4A when using the 2S pack, or go with the 1200-2S2P (2400mAh) for very long flights at 9A+ with no strain on the pack.  Use the Castle Creations PIXIE 7A or 20A controllers to insure that your lithium pack is protected from over-discharge, and the E-Tec Apache SMART 2-cell or 4-cell chargers to be safe when charging lithium packs (the world's only truly SAFE li-po chargers).
   The EPS-350C should be limited to about 9.5A for long service life.  Exceeding 10A gains little power in exchange for the increased drain on your battery.  The motors provide best efficiency at 6 to 8 amps.
   Also note that the thrust figures below don't tell the whole story.  Except, perhaps, for indoor 3D models, airplanes fly on speed.  One propeller and gearing combination may provide tremendous thrust, but be unable to fly your model for lack of speed.  The higher pitched props below may show less thrust, but remember that you may need the speed they provide in exchange.
 
EPS-350C 2  (2.8:1)
PROPELLER Volts Amps Thrust Power (w) Efficiency
(V) (A) (g) (oz) (g/w) (oz/w)
EP6030 9.6 5.9 267 9.35 56.64 4.71 0.16
EP6030 10.8 7.7 329 11.52 83.16 3.96 0.14
EP7035 9.6 9.3 383 13.41 89.28 4.29 0.15
EPS-350C 1  (3.22:1)
PROPELLER Volts Amps Thrust Power (w) Efficiency
(V) (A) (g) (oz) (g/w) (oz/w)
EP6030 10.8 6.6 300 10.50 71.28 4.21 0.15
EP7035 9.6 11.6??? 283 9.91 111.36 2.54 0.09
EP7035 10.8 8.7 398 13.93 93.96 4.24 0.15
EP8040 7.2 8.2 327 11.45 59.04 5.54 0.19
EP8043 7.2 9.7 338 11.83 69.84 4.84 0.17
EPS-350C A  (3.75:1)
PROPELLER Volts Amps Thrust Power (w) Efficiency
(V) (A) (g) (oz) (g/w) (oz/w)
EP8040 8.4 8.2 374 13.09 68.88 5.43 0.19
EP8040 9.6 9.8 440 15.40 94.08 4.68 0.16
EP8043 7.2 7.5 325 11.38 54.00 6.02 0.21
EP8043 8.4 9 390 13.65 75.60 5.16 0.18
EP8060 7.2 9.4 328 11.48 67.68 4.85 0.17
EP9047 6 8.8 315 11.03 52.80 5.97 0.21
EP9050 6 7.2 279 9.77 43.20 6.46 0.23
EP9050 7.2 9.8 374 13.09 70.56 5.30 0.19
EPS-350C B  (4.43:1)
PROPELLER Volts Amps Thrust Power (w) Efficiency
(V) (A) (g) (oz) (g/w) (oz/w)
EP8040 8.4 6.5 327 11.45 54.60 5.99 0.21
EP8040 9.6 7 365 12.78 67.20 5.43 0.19
EP8040 10.8 7.3 374 13.09 78.84 4.74 4.74
EP8043 8.4 7.6 348 12.18 63.84 5.45 0.19
EP8043 9.6 8.9 430 15.05 85.44 5.03 0.18
EP8060 7.2 7.2 309 10.82 51.84 5.96 0.21
EP8060 8.4 8.4 350 12.25 70.56 4.96 0.17
EP9047 7.2 8.5 372 13.02 61.20 6.08 0.21
EP9047 8.4 10.9 456 15.96 91.56 4.98 0.17
EP9050 7.2 7.4 342 11.97 53.28 6.42 0.22
EP9050 8.4 8.3 371 12.99 69.72 5.32 0.19
EPS-350C C   (5.33:1)
PROPELLER Volts Amps Thrust Power (w) Efficiency
(V) (A) (g) (oz) (g/w) (oz/w)
EP8060 8.4 7 320 11.20 58.80 5.44 0.19
EP8060 9.6 8.6 380 13.30 82.56 4.60 0.16
EP9047 7.2 6.6 318 11.13 47.52 6.69 0.23
EP9047 8.4 8.3 388 13.58 69.72 5.57 0.19
EP9050 7.2 5.2 280 9.80 37.44 7.48 0.26
EP9050 8.4 6.7 364 12.74 56.28 6.47 0.23
EP9050 9.6 8.5 450 15.75 81.60 5.51 0.19
EP9070 7.2 8 329 11.52 57.60 5.71 0.20
EP9070 8.4 9.3 365 12.78 78.12 4.67 0.16
EP1047 6 6.5 300 10.50 39.00 7.69 0.27
EP1047 7.2 8.8 410 14.35 63.36 6.47 0.23
EP1047 8.4 10.3 470 16.45 86.52 5.43 0.19
EP1060 6 5.3 267 9.35 31.80 8.40 0.29
EP1060 7.2 6.9 345 12.08 49.68 6.94 0.24
EP1060 8.4 8.8 439 15.37 73.92 5.94 0.21
EPS-350C D  (6.6:1)
PROPELLER Volts Amps Thrust Power (w) Efficiency
(V) (A) (g) (oz) (g/w) (oz/w)
EP9047 8.4 6.2 327 11.45 52.08 6.28 0.22
EP9047 9.6 7.4 403 14.11 71.04 5.67 0.20
EP9047 10.8 8.5 468 16.38 91.80 5.10 0.18
EP9050 9.6 5.7 367 12.85 54.72 6.71 0.23
EP9050 10.8 6.9 430 15.05 74.52 5.77 0.20
EP9070 7.2 5.5 259 9.07 39.60 6.54 0.23
EP9070 8.4 6.8 320 11.20 57.12 5.60 0.20
EP9070 9.6 8.7 397 13.90 83.52 4.75 0.17
EP1047 7.2 5.7 314 10.99 41.04 7.65 0.27
EP1047 8.4 6.2 350 12.25 52.08 6.72 0.24
EP1047 9.6 9.3 510 17.85 89.28 5.71 0.20
EP1060 7.2 4.3 252 8.82 30.96 8.14 0.28
EP1060 8.4 5.5 318 11.13 46.20 6.88 0.24
EP1060 9.6 7 403 14.11 67.20 6.00 0.21
EP1060 10.8 8.2 455 15.93 88.56 5.14 0.18
EP1080 7.2 7.1 293 10.26 51.12 5.73 0.20
EP1080 8.4 8.8 347 12.15 73.92 4.69 0.16
EP1170 6 6 284 9.94 36.00 7.89 0.28
EP1170 7.2 7.3 375 13.13 52.56 7.13 0.25
EP1170 8.4 9.1 462 16.17 76.44 6.04 0.21