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RRC1905WF

1905 Wright Flyer 68"

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Whats New > E-Power Everything > Brushed Motors > Gear Drive Brushed Motors
GWS Products warranty info.

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.

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GWS IPS Power System - Product Image
Click for larger image

GWS IPS Power System

Note, original listing follows below. GWS in the USA has gone out of business. If the IPS geared system you want is not $15, it is because we must build it out of available parts. When those parts are depleted there will be no more. We charge an extra $20 to hand build them out of stock sizes. If you are building a classic model calling for an IPS-A or IPS-S1 (for example) we can only supply those by hand building them from in stock parts and thus the extra charge for labor. If you want those sizes and can build it yourself without calling for help (It's unfair not to pay us to do it but fill up our telephone time telling you how!), you'll need to order an IPS single drive (I suggest C, D, E or F), the pinion and the spur in your gear ratio. You will also need a gear puller. The parts and puller will be almost $20 anyway. It's a better deal for all the the most experienced to pay us to do the building.

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" okay in the air. 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.

SKU Number: GWIPSDX2BB_XCS
Price:   $15.00 
Select  
Quantity:  

GWS IPS Dual Motor - RXC Power System-2S - Product Image
Click for larger image

GWS IPS Dual Motor - RXC Power System-2S

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

IPS Dual Power System Data Tables

SKU Number: GWIPSD-RXC-2S
Price:   $21.75 
Quantity:  

GWS IPS Dual Motor - RXC Power System-1S - Product Image
Click for larger image

GWS IPS Dual Motor - RXC Power System-1S

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

IPS Dual Power System Data Tables

SKU Number: GWIPSD-RXC-1S
Price:   $21.75 
Quantity:  

GWS IPS Dual Motor - RXC Power System-AS - Product Image
Click for larger image

GWS IPS Dual Motor - RXC Power System-AS

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

IPS Dual Power System Data Tables

SKU Number: GWIPSD-RXC-AS
Price:   $21.75 
Quantity:  

GWS IPS Dual Motor - RXC Power System-BS - Product Image
Click for larger image

GWS IPS Dual Motor - RXC Power System-BS

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

SKU Number: GWIPSD-RXC-BS
Price:   $21.75 
Quantity:  

GWS IPS Dual Motor - RXC Power System-CS - Product Image
Click for larger image

GWS IPS Dual Motor - RXC Power System-CS

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

IPS Dual Power System Data Tables

SKU Number: GWIPSD-RXC-CS
Price:   $21.75 
Quantity:  

GWS IPS Dual Motor - RXC Power System-DS - Product Image
Click for larger image

GWS IPS Dual Motor - RXC Power System-DS

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

IPS Dual Power System Data Tables

SKU Number: GWIPSD-RXC-DS
Price:   $21.75 
Quantity:  

GWS IPS Dual Motor - RXC Power System-ES - Product Image
Click for larger image

GWS IPS Dual Motor - RXC Power System-ES

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

IPS Dual Power System Data Tables

SKU Number: GWIPSD-RXC-ES
Price:   $22.75 
Quantity:  

GWS IPS Dual Motor - RXC Power System-FS - Product Image
Click for larger image

GWS IPS Dual Motor - RXC Power System-FS

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

IPS Dual Power System Data Tables

SKU Number: GWIPSD-RXC-FS
Price:   $22.75 
Quantity:  

GWS IPS Dual Motor - RLC Power System-2S - Product Image
Click for larger image

GWS IPS Dual Motor - RLC Power System-2S

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

IPS Dual Power System Data Tables

SKU Number: GWIPSD-RLC-2S
Price:   $21.75 
Quantity:  

GWS IPS Dual Motor - RLC Power System-1S - Product Image
Click for larger image

GWS IPS Dual Motor - RLC Power System-1S

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

IPS Dual Power System Data Tables

SKU Number: GWIPSD-RLC-1S
Price:   $21.75 
Quantity:  

GWS IPS Dual Motor - RLC Power System-AS - Product Image
Click for larger image

GWS IPS Dual Motor - RLC Power System-AS

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

IPS Dual Power System Data Tables

SKU Number: GWIPSD-RLC-AS
Price:   $21.75 
Quantity:  

GWS IPS Dual Motor - RLC Power System-BS - Product Image
Click for larger image

GWS IPS Dual Motor - RLC Power System-BS

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

IPS Dual Power System Data Tables

SKU Number: GWIPSD-RLC-BS
Price:   $21.75 
Quantity:  

GWS IPS Dual Motor - RLC Power System-CS - Product Image
Click for larger image

GWS IPS Dual Motor - RLC Power System-CS

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

IPS Dual Power System Data Tables

SKU Number: GWIPSD-RLC-CS
Price:   $21.75 
Quantity:  

GWS IPS Dual Motor - RLC Power System-DS - Product Image
Click for larger image

GWS IPS Dual Motor - RLC Power System-DS

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

IPS Dual Power System Data Tables

SKU Number: GWIPSD-RLC-DS
Price:   $21.75 
Quantity:  

GWS IPS Dual Motor - RLC Power System-ES - Product Image
Click for larger image

GWS IPS Dual Motor - RLC Power System-ES

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

IPS Dual Power System Data Tables

SKU Number: GWIPSD-RLC-ES
Price:   $22.75 
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GWS IPS Dual Motor - RLC Power System-FS - Product Image
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GWS IPS Dual Motor - RLC Power System-FS

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

IPS Dual Power System Data Tables

SKU Number: GWIPSD-RLC-FS
Price:   $22.75 
Quantity:  

GWS LPS - RXC Power System - Product Image
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GWS LPS - RXC Power System

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

LPS Power System Data Tables

SKU Number: GWLPS-RXC
Price:   $13.00 
Gear Ratio  
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GWS LPS - RLC Power System - Product Image
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GWS LPS - RLC Power System

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

LPS Power System Data Tables

SKU Number: GWLPS-RLC
Price:   $13.00 
Gear Ratio  
Quantity:  

GWS LPS - B2C Power System - Product Image
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GWS LPS - B2C Power System

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

LPS Power System Data Tables

SKU Number: GWLPS-B2C
Price:   $13.00 
Gear Ratio  
Quantity:  

GWS EPSD 350-A,B,C,D Dual Motor Power System - Product Image
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GWS EPSD 350-A,B,C,D Dual Motor Power System

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.

EPSD Dual Motor Power System Data.


SKU Number: GWEPSD-350A-B-C-D
Price:   $28.50 
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GWS EPS 100 Power System - Product Image
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GWS EPS 100 Power System

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.

100C on super Discount, check deduction in drop down box. You get them $6 flat!

SKU Number: GWEPS100A-B-C-D-S1-S2
Price:   $13.00 
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GWS EPS 280 Power System - Product Image
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GWS EPS 280 Power System

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.
SKU Number: GWEPS280A-B-C-D-E-F-S1-S2
Price:   $13.00 
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GWS EPS 300 Power System - Product Image
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GWS EPS 300 Power System

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
Price:   $18.00 
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