This 8in/200mm (nominal) servo extension, weighs 7g and terminates with male and female ABS plastic 3.5A-continuous type universal radio connectors with crimped gold-plated metal pins on 0.10" centers.
Locking-type available.
What many pilots like about ProModeler extensions versus whatever you buy from hobby dealers are they're insulated with silicone instead of PVC. This means they're very soft and supple, which lets them be routed through tight spots and around sharp corners better. That, and the silicone rubber resists abrasion better.
They're also twisted instead of flat so if the ESC ever begins to fail and emit stray RFI, then the twisting resists allowing the signal to make it into your receiver. And without getting too deep into the weeds, the theory behind twisting it it reduces the strength of noise signals *and* cancels out external RFI-waves by moving a part of the noise in the direction of the signal and another part in the opposite direction. However, while stray RFI this is a *much* bigger deal with folks flying ignition powered engines it's still worth a thought with electric-powered models, too. Heads up!
Another thing to watch for with extensions is because the tabs that hold the individual pins in place are delicate, make sure you're not being ham-handed and forcing them in such a way as to displace the pins, this is another way of saying use your eyes and confirm the integrity of the connection, capisci? Trust but verify!
- Length: 8" (200mm)
- Weight: 7g
- Current (max): 3.5A continuous
- Conductor: stranded copper
- Gauge: 20AWG
- Jacket: silicone
- Connectors: 5A-type (universal)
- Material: ABS
- Plating: gold
There are experienced modelers who prefer to eliminate connectors and make up their own extensions. They'll whip out a roll of bulk wire, a crimping tool and connectors (plus solder, an iron, and heat shrink tubing). They'll skillfully make extensions customized to their model in a matter of an afternoon. They'll have fun, gain satisfaction of a job well done, maybe save a little money, and it's called modeling for a reason!
Yes, ditching the extra connectors reduces resistance a tiny bit. Eliminating a few inches of wire here and there also adds up to less resistance. Can you measure it when the job is done? In theory, yes. In practice, it's reasonable to wonder; are there pilots who can feel the difference the slight reduction in resistance delivers? Perhaps amongst those who have been gifted by God himself are some who will say yes (maybe). As for the rest of us (mere mortals), only you know if you're in this class but we're reminded of what Callahan said as Dirty Harry in Magnum Force
"A man's got to know his limitations."
The point is, it's our opinion the exercise of minimizing connections and optimizing wire length is akin to mental masturbation. Why? If for no other reason than because in their quest to do the best possible installation (by soldering and manually crimping the connectors) there's added human error at each crimp and solder joint. And as we all know, only God is perfect. Anyway, we confidently offer these heavy duty 20AWG extensions as a quick and easy solution for placing a servo remotely with greatly reduced effort.