Understanding Gear Ratios: Different gear ratios change how the power is applied to the air. As the letter gets further away from "A" (more and more gear reduction) the RPM and pitch speed is reduced and the static thrust (and usually prop diameter) is increased. In other words the prop shaft will turn slower but with more torque so it can handle larger props. If the pitch speed does not exceed the stall speed you can't pull the model fast enough to make it fly. You usually want pitch speed to be at least 2-2.5 X stall speed for slow fliers, trainers and 3D models. Sport aerobatic models 2.5-3X stall speed, pattern airplanes at least 3X stall speed. If your experimenting be sure to get a range of props for the motor. In many instances one prop will make the model feel poor while another prop might exceed your expectations. Nobody can predict what will work best for you so get what you think will work and a couple nearby props so your not missing out on better performance. Look in props section for simple math to calculate pitch speed if prop pitch and RPM are known.
Famous GWS IPS motors. The "A" system is what comes on the Pico Stick/Tiger moth and all the other stock ships. I've often heard one IPS motor described as "more powerful" than another. However, they all use the same motor so the potential power is the same. The different gear ratios only change how the power is applied to the air. As the letter gets further away from "A" the pitch speed is reduced and the static thrust is increased. In other words the prop shaft will turn slower but with more torque so it can handle larger props. If the pitch speed does not exceed the stall speed you can't pull the model fast enough to make it fly. You should have about 100% more pitch speed than stall speed for a model to "feel" ok in the air. If your experimenting be sure to get a range of porps for the motor. In many instances one prop will make the model feel poor while another prop might exceed your expectations. Nobody can predict what will work best for you so get what you think will work and a couple nearby props so your not missing out on better performance.
The RXC version of this motor system has the 7.2V motor and is intended for use with 6-8 cell NiMH, NiCad or 2 Cell Lipo battery packs. Follow GWS prop selection recommendations to keep amps at 2 or less for best life out of these systems. This is the same motor as the famous IPS drive just in a lighter weight gearbox. We suggest you order an extra shaft or two in our GWS motor system parts section as the 2mm shaft can be bent in a crash easily.
GW/LPS-RXC, 7.2V
2
M0.4 x 56T
M0.4 x 16T 56T / 16 T= 3.5
The RXC version of this motor system has the 7.2V motor and is intended for use with 6-8 cell NiMH, NiCad or 2 Cell Lipo battery packs. Follow GWS prop selection recommendations to keep amps at 2 or less for best life out of these systems. This is the same motor as the famous IPS drive just in a lighter weight gearbox. We suggest you order an extra shaft or two in our GWS motor system parts section as the 2mm shaft can be bent in a crash easily.
GW/LPS-RXC, 7.2V
1S
M0.4 x 58T
M0.4 x 14T 58T / 14 T= 4.1
The RXC version of this motor system has the 7.2V motor and is intended for use with 6-8 cell NiMH, NiCad or 2 Cell Lipo battery packs. Follow GWS prop selection recommendations to keep amps at 2 or less for best life out of these systems. This is the same motor as the famous IPS drive just in a lighter weight gearbox. We suggest you order an extra shaft or two in our GWS motor system parts section as the 2mm shaft can be bent in a crash easily.
GW/LPS-RXC, 7.2V
A Sa:M0.3 x 48T A:M0.3 x 12T 48T/12T= 4.0:1
The RXC version of this motor system has the 7.2V motor and is intended for use with 6-8 cell NiMH, NiCad or 2 Cell Lipo battery packs. Follow GWS prop selection recommendations to keep amps at 2 or less for best life out of these systems. This is the same motor as the famous IPS drive just in a lighter weight gearbox. We suggest you order an extra shaft or two in our GWS motor system parts section as the 2mm shaft can be bent in a crash easily.
GW/LPS-RXC, 7.2V
B Sb:M0.3 x 50T B:M0.3 x 10T 50T/10T= 5.0:1 IPS Dual Power System Data Tables
The RXC version of this motor system has the 7.2V motor and is intended for use with 6-8 cell NiMH, NiCad or 2 Cell Lipo battery packs. Follow GWS prop selection recommendations to keep amps at 2 or less for best life out of these systems. This is the same motor as the famous IPS drive just in a lighter weight gearbox. We suggest you order an extra shaft or two in our GWS motor system parts section as the 2mm shaft can be bent in a crash easily.
GW/LPS-RXC, 7.2V
C Sc:M0.25 x 62T C:M0.25 x 10T 62T/10T= 6.2:1
The RXC version of this motor system has the 7.2V motor and is intended for use with 6-8 cell NiMH, NiCad or 2 Cell Lipo battery packs. Follow GWS prop selection recommendations to keep amps at 2 or less for best life out of these systems. This is the same motor as the famous IPS drive just in a lighter weight gearbox. We suggest you order an extra shaft or two in our GWS motor system parts section as the 2mm shaft can be bent in a crash easily.
GW/LPS-RXC, 7.2V
D M0.3 x 87T M0.3 x 9T 87T / 9 T = 9.7
The RXC version of this motor system has the 7.2V motor and is intended for use with 6-8 cell NiMH, NiCad or 2 Cell Lipo battery packs. Follow GWS prop selection recommendations to keep amps at 2 or less for best life out of these systems. This is the same motor as the famous IPS drive just in a lighter weight gearbox. We suggest you order an extra shaft or two in our GWS motor system parts section as the 2mm shaft can be bent in a crash easily.
GW/LPS-RXC, 7.2V
E M0.3 x107T M0.3 x 10T 107T /10T = 10.7
The RXC version of this motor system has the 7.2V motor and is intended for use with 6-8 cell NiMH, NiCad or 2 Cell Lipo battery packs. Follow GWS prop selection recommendations to keep amps at 2 or less for best life out of these systems. This is the same motor as the famous IPS drive just in a lighter weight gearbox. We suggest you order an extra shaft or two in our GWS motor system parts section as the 2mm shaft can be bent in a crash easily.
GW/LPS-RXC, 7.2V
F M0.3 x106T M0.3 x 9T 106T / 9T = 11.8
The RLC version of this motor system has the 4.8V motor and is intended for use with 2-4 cell NiMH, NiCad or 1 Cell Lipo battery packs. Follow GWS prop selection recommendations to keep amps at 2 or less for best life out of these systems. This is the same "size" motor as the famous IPS drive except the lower voltage ducted fan motor and a lighter weight gearbox. We suggest you order an extra shaft or two in our GWS motor system parts section as the 2mm shaft can be bent in a crash easily.
It is possible to run this motor system on 2S lipo packs but smaller props must be used than those listed in the GWS site for the lower voltages. Use your Watt Meter to test, keep amps at 2 or less.
GW/LPS-RLC, 4.8V
2S
M0.4 x 56T
M0.4 x 16T 56T / 16 T= 3.5
The RLC version of this motor system has the 4.8V motor and is intended for use with 2-4 cell NiMH, NiCad or 1 Cell Lipo battery packs. Follow GWS prop selection recommendations to keep amps at 2 or less for best life out of these systems. This is the same "size" motor as the famous IPS drive except the lower voltage ducted fan motor and a lighter weight gearbox. We suggest you order an extra shaft or two in our GWS motor system parts section as the 2mm shaft can be bent in a crash easily.
It is possible to run this motor system on 2S lipo packs but smaller props must be used than those listed in the GWS site for the lower voltages. Use your Watt Meter to test, keep amps at 2 or less.
GW/LPS-RLC, 4.8V
1S M0.4 x 58T M0.4 x 14T 58T / 14 T= 4.1
The RLC version of this motor system has the 4.8V motor and is intended for use with 2-4 cell NiMH, NiCad or 1 Cell Lipo battery packs. Follow GWS prop selection recommendations to keep amps at 2 or less for best life out of these systems. This is the same "size" motor as the famous IPS drive except the lower voltage ducted fan motor and a lighter weight gearbox. We suggest you order an extra shaft or two in our GWS motor system parts section as the 2mm shaft can be bent in a crash easily.
It is possible to run this motor system on 2S lipo packs but smaller props must be used than those listed in the GWS site for the lower voltages. Use your Watt Meter to test, keep amps at 2 or less.
GW/LPS-RLC, 4.8V
A Sa:M0.3 x 48T A:M0.3 x 12T 48T/12T= 4.0:1
The RLC version of this motor system has the 4.8V motor and is intended for use with 2-4 cell NiMH, NiCad or 1 Cell Lipo battery packs. Follow GWS prop selection recommendations to keep amps at 2 or less for best life out of these systems. This is the same "size" motor as the famous IPS drive except the lower voltage ducted fan motor and a lighter weight gearbox. We suggest you order an extra shaft or two in our GWS motor system parts section as the 2mm shaft can be bent in a crash easily.
It is possible to run this motor system on 2S lipo packs but smaller props must be used than those listed in the GWS site for the lower voltages. Use your Watt Meter to test, keep amps at 2 or less.
GW/LPS-RLC, 4.8V
B Sb:M0.3 x 50T B:M0.3 x 10T 50T/10T= 5.0:1
The RLC version of this motor system has the 4.8V motor and is intended for use with 2-4 cell NiMH, NiCad or 1 Cell Lipo battery packs. Follow GWS prop selection recommendations to keep amps at 2 or less for best life out of these systems. This is the same "size" motor as the famous IPS drive except the lower voltage ducted fan motor and a lighter weight gearbox. We suggest you order an extra shaft or two in our GWS motor system parts section as the 2mm shaft can be bent in a crash easily.
It is possible to run this motor system on 2S lipo packs but smaller props must be used than those listed in the GWS site for the lower voltages. Use your Watt Meter to test, keep amps at 2 or less.
GW/LPS-RLC, 4.8V
C Sc:M0.25 x 62T C:M0.25 x 10T 62T/10T= 6.2:1
The RLC version of this motor system has the 4.8V motor and is intended for use with 2-4 cell NiMH, NiCad or 1 Cell Lipo battery packs. Follow GWS prop selection recommendations to keep amps at 2 or less for best life out of these systems. This is the same "size" motor as the famous IPS drive except the lower voltage ducted fan motor and a lighter weight gearbox. We suggest you order an extra shaft or two in our GWS motor system parts section as the 2mm shaft can be bent in a crash easily.
It is possible to run this motor system on 2S lipo packs but smaller props must be used than those listed in the GWS site for the lower voltages. Use your Watt Meter to test, keep amps at 2 or less.
GW/LPS-RLC, 4.8V
D M0.3 x 87T M0.3 x 9T 87T / 9 T = 9.7
The RLC version of this motor system has the 4.8V motor and is intended for use with 2-4 cell NiMH, NiCad or 1 Cell Lipo battery packs. Follow GWS prop selection recommendations to keep amps at 2 or less for best life out of these systems. This is the same "size" motor as the famous IPS drive except the lower voltage ducted fan motor and a lighter weight gearbox. We suggest you order an extra shaft or two in our GWS motor system parts section as the 2mm shaft can be bent in a crash easily.
It is possible to run this motor system on 2S lipo packs but smaller props must be used than those listed in the GWS site for the lower voltages. Use your Watt Meter to test, keep amps at 2 or less.
GW/LPS-RLC, 4.8V
E M0.3 x107T M0.3 x 10T 107T /10T = 10.7
The RLC version of this motor system has the 4.8V motor and is intended for use with 2-4 cell NiMH, NiCad or 1 Cell Lipo battery packs. Follow GWS prop selection recommendations to keep amps at 2 or less for best life out of these systems. This is the same "size" motor as the famous IPS drive except the lower voltage ducted fan motor and a lighter weight gearbox. We suggest you order an extra shaft or two in our GWS motor system parts section as the 2mm shaft can be bent in a crash easily.
It is possible to run this motor system on 2S lipo packs but smaller props must be used than those listed in the GWS site for the lower voltages. Use your Watt Meter to test, keep amps at 2 or less.
GW/LPS-RLC, 4.8V
F M0.3 x106T M0.3 x 9T 106T / 9T = 11.8
The RXC version of this motor system has the 7.2V motor and is intended for use with 6-8 cell NiMH, NiCad or 2 Cell Lipo battery packs. Follow GWS prop selection recommendations to keep amps at 2 or less for best life out of these systems. This is the same motor as the famous IPS drive just in a lighter weight gearbox. We suggest you order an extra shaft or two in our GWS motor system parts section as the 2mm shaft can be bent in a crash easily.
GW/LPS-RXC, 7.2V
A Sa:M0.3 x 48T A:M0.3 x 12T 48T/12T= 4.0:1
B Sb:M0.3 x 50T B:M0.3 x 10T 50T/10T= 5.0:1
C Sc:M0.25 x 62T C:M0.25 x 10T 62T/10T= 6.2:1
The RLC version of this motor system has the 4.8V motor and is intended for use with 2-4 cell NiMH, NiCad or 1 Cell Lipo battery packs. Follow GWS prop selection recommendations to keep amps at 2 or less for best life out of these systems. This is the same "size" motor as the famous IPS drive except the lower voltage ducted fan motor and a lighter weight gearbox. We suggest you order an extra shaft or two in our GWS motor system parts section as the 2mm shaft can be bent in a crash easily.
It is possible to run this motor system on 2S lipo packs but smaller props must be used than those listed in the GWS site for the lower voltages. Use your Watt Meter to test, keep amps at 2 or less.
GW/LPS-RLC, 4.8V
A Sa:M0.3 x 48T A:M0.3 x 12T 48T/12T= 4.0:1
B Sb:M0.3 x 50T B:M0.3 x 10T 50T/10T= 5.0:1
C Sc:M0.25 x 62T C:M0.25 x 10T 62T/10T= 6.2:1
The B2C version of this motor system has the 7.2V motor and is intended for use with 6-8 cell NiMH, NiCad or 2 Cell Lipo battery packs. Follow GWS prop selection recommendations to keep amps at 1 or less for best life out of these systems. This is the same motor as the famous Road Kill power system. We suggest you order an extra shaft or two in our GWS motor system parts section as the 2mm shaft can be bent in a crash easily.
GW/LPS-B2C, 7.2V
A Sa:M0.3 x 48T A:M0.3 x 12T 48T/12T= 4.0:1
B Sb:M0.3 x 50T B:M0.3 x 10T 50T/10T= 5.0:1
C Sc:M0.25 x 62T C:M0.25 x 10T 62T/10T= 6.2:1
All of these power systems use the same motors at different gear ratios. GWS shows setup loads from 16 to 25.3 amps.The quality is high in these powerful motors. They perform best on 7 or 8 cell KAN1050 NiMh or RRC 2x2000 SHD Lithium Polymer packs. 2 Cell Lipo packs are possible also with prop size adjustments. Remember, the higher the ratio the greater the static thrust at a lower speed. Choose wisely. By purchasing a few different props you'll be able to make adjustments to static, inflight thrust and pitch speed of your power system and come up with the best combination of performance for your bird.
Assembly weight 133g/4.7oz.
EPS-100 Power Sytems are all the same Speed 280 motor in many different ratios. Comes with sleek gearbox. Remember, the higher the ratio the greater the static thrust at a lower speed. Choose wisely. By purchasing a few different props you'll be able to make adjustments to static, inflight thrust and pitch speed of your power system and come up with the best combination of performance for your bird.
EPS-280 Power Sytems are all the same Speed 280 motor in many different ratios. Remember, the higher the ratio the greater the static thrust at a lower speed. Choose wisely. By purchasing a few different props you'll be able to make adjustments to static, inflight thrust and pitch speed of your power system and come up with the best combination of performance for your bird.
All of these power systems use the same motor at different gear ratios. GWS says not to load them over about 6 amps. However, I've had good luck loading them to near 8 amps. They come with a sleeker gearbox than the 370DX series and a different lower KV S-300 motor. The quality is high in these powerful motors. They perform best on 7 or 8 720 NiMh or RRC 2x1800 Polymer packs. Remember, the higher the ratio the greater the static thrust at a lower speed. Choose wisely. By purchasing a few different props you'll be able to make adjustments to static, inflight thrust and pitch speed of your power system and come up with the best combination of performance for your bird.
SKU Number: GWEPS300A-B-C-D-S1-S2
NASA wants to go back to the moon. Radical RC's Wicked Wing beat them to it! Check out our original designs! Radical RC Verti-Go 125, Verti-Go 3D, E-Hornet, Mini Stick, Micro Stick, Micro Bipe, Micro Low Stick, Quick Wing 12mm, Quick Wing 20mm, Quick Wing Twin 20mm Double Trouble, Das Mini Low Stick, Das Mini Bipe, Mini Hunter, Mini Intern Trainer, Stick 600,
We cover all the basics on charging and cycling, and the receivers that we provide. PLEASE READ THIS PRIOR to sending any items back. 99% of all returned items test perfect. Learn how to check your cycler/charger or receiver here without spending money on postage.
Pictured to left is one of Garrett's competition ships, to right .... Dave, Here is a picture of my second plane. This is a 3W Extra 330 40%. The plane is flying great. Thanks so much for all your support in this hobby. I really like using your products. My friends as well are very happy with the equipment & fast-friendly service that is coming out of your company. Let's keep in touch. -Garrett Morrison
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