Let me first start off by saying that my perspective is colored by the fact that I exist solely in the 4S realm in which the ESC's built-in BEC powers all my rigs. Given that most of the integrated BEC's only put out maybe 5V, the high voltage servo's wont perform at their advertised peak torque.
The Hitec illustrated above is rated at 6.0V and 7.4V which may work when using a dedicated power supply but won't for me when the built-in BEC powers the servo.
This is very true. That said in setting up my outboard tunnel boats for heat racing I am more and more eliminating BEC's and going completely to separate LiFe 6.6v to power the RX and steering. There is a difference in a 6-9 lb. P or Q tunnel above 50 mph. Loosing any heat that could be prevented by hardware is not acceptable. I loose enough just driving.
Mic
Well, I just ordered the Fitec- [Gee, that name somehow sounds vaguely familiar, as does the red swoop in the logo - where have I heard a similar name before, I forget ]
It's going in a customer build so I can't test it in the water but I'll sniff it out on the bench & give my impressions.
2008 NAMBA P-Mono & P-Offshore Nat'l 2-Lap Record Holder; '15 P-Cat, P-Ltd Cat 2-Lap
2009/2010 NAMBA P-Sport Hydro Nat'l 2-Lap Record Holder, '13 SCSTA P-Ltd Cat High Points
'11 NAMBA [P-Ltd] : Mono, Offshore, OPC, Sport Hydro; '06 LSO, '12,'13,'14 P Ltd Cat /Mono
Fitec (er, FEETECH) came. First inspection - looks very nice. Hooked to a Tactic radio with four 1.2V AA batteries - No buzzing, sounds quiet and like a servo should. With tension on the gears (as in working against resistance - or a binding linkage) a slight whine barely audible. Nice assortment of accessories. Servo arms are Futaba splined.
I like the case design - the top part goes deep and is secured on top (as well as the four normal screws) which is good to keep the gears aligned.
The wires appear to be of nice strong gauge
Compared to the Traxxas (which to be fair I've had no problems with so far) :
Traxxas has a plastic splined output shaft
Traxxas comes with NO hardware whatsoever- must add a servo arm AND find a self-threading arm attaching screw to screw into blank plastic hole
Traxxas has lesser specs and costs +/- $8 more
Traxxas has a "bulge" in the case making it tricky to fit the popular quickchange laydown mount
Comment