Only just. A couple of hard landings and you may strip a gear or two. You would be better off with the Corona 939MG with metal gears. Will save you many $ in the long run. I use these in all my 450 helis for cyclics and the 9257 for the tail servo.
but i am assembling a 250 size heli with just the servos left to install... dont u think the servos u suggested will be heavy for that samll heli?? with a 3500 kv motor. M new to this so dnt knw mch :p
No. They are fine. Have used them in 250's as well. Though the 9257 is too big for a 250 tail. Use a Corona 919MG. I too use the 3500kv motor as available here. Excellent motor but use with 3S 800mAh battery. You will have a very capable heli that will be very powerful for its size, but it can be very skittish, and to be honest, not the best option for a beginner to CP helis. I had flown a 450 for a good 6 months regularly, and the 250 really took me by surprise with its 'agility!'
I use XGD-11MB for swash and HKSCM9-6 for tail, both are cheap but they work very well with the HK250GT (fit perfectly in the frame and do not obstruct mounting the canopy as the HK922MG does). The XGD-11MB also has metal gears in the two final gears, so they hold up a little better when you crash. HTH
I have a 1100mm p51 mustang by durafly. I have the original flap servo's wiring at 11 inches and the replacement HK15178 servo's wiring at 7.5 inches. It does fit one side but short on the other.....why the difference? Very disappointed since I ordered 5 of these.
Ah the wire length. The original servo is probably not the same one you have as a replacement, even though it may look the same. You now need some extension cables to make the difference up. Use some of the wire from the old servo and solder it onto the new servo wires.
I have tried four times to write a review, but it doesn't work so I write it here instead. I have a dozen of these. Cheap but strong and fast, centers well. Strips quite easily in crashes, but is sturdier than e.g. HKSCM9-6. An important note, I have had two of these go one extreme position and lockup there. Turns out in both cases that one of the three thin cables connecting the feedback potentiometer to the circuit board had broken off. My use case was an EDF and the servo was close to the motor. So for the third servo, I used glue to secure these very thin cables to the pot and to the board, and it has been working fine since then. Recommended for foamies and not-so-expensive planes. A lot of value for the price.
Well LasseK they are a very well priced servo. So with your review, where were you trying to write it from. If you go to your account. There click on ""Account settings & tools"" then ""Product Reviews" in there will be listed, item you have bought. Just do it soon, because you do not have forever to do the review! Good Flying. By the way nice review and it would be good to have it in the review section!
I guess my failed attempts to review the servos was that quite some time has passed before I wrote the review. But how can I possibly write a good meaningful review about a product that I haven't used!? There has to pass some time before I really can contribute with user experience! Do you know how large this time window is?
LasseK good question. I have reviewed up to 4 week later but I have missed reviews when I waited 8 weeks. I think you have a good point!. It is a worth while suggestion to bring to HK. In the home forum is a place for good ideas. If it is real good HK will award you!
Wtwuk and Lassek you are correct. I just did two Reviews and it does say at the top of the REVIEW PAGE. You have 45day to complete a review. Really not enough time for a plane. I have also noticed that once you have reviewed an item, then you buy again, you cannot review again!
I tried attaching a YT video to the previous post, but it was completely ignored. I can't reply to anything as it just asks me to log in, whatever I do, even though I am already logged in.
The video is in the Videos tab.
For run of the mill planes under 28 ounces or so, these servos are fine.
Although the listed sizes and weights are different, when I got these servos and compared them to HXT-900's, I found identical results.
Hobbywing is owned by the same company that owns HXT (Hextronik Limited, Hong Kong)...
When I get a failed HXT AND a failed HobbyWing HKi5178, I'll open them up and compare guts. Something tells me I'll find same items molded in different colors.
These are NOT super-duper whiz-bangs! But, for average, "everyday fliers" and "quick projects", they're good enough.
I buy these to fill out my weight allowance/shipping costs in orders.
I give them away at the flying field... haven't heard of one failing yet!
An update - just pulled an HXT and it does not have the same components as this one. Different gear spindles, different pot spindle. Also this servo is faster than the HXT. Which makes sense - otherwise why sell both?
WTWUK, your last comment logic is wrong. Hobby King sells a ton of rebranded products which are essentially exactly the same. For example Turnigy 9g servos and HXT 9g are exactly the same product, but they have diferent price points because one is supposed to go trough tougher quality control.
Em relaç*ã*o a outro servos que custam um pouco mais, esse vc leva a melhor vantagem por custo benefí*cio
Regarding the other servants that cost a little more, that takes the best advantage you for money
These are great value, to a point.
Due to pushrod flexing I recently went to heavier gauge
wire, and in 3 flights I had 3 trashed gears (servos).
Wish I'd tried V-bends as these servos work fine until pushed past the limits of plastic.
OK, so we are crashing, and have stiffened up the pushrods, and the plastic gear is paying the price? Well, that's how it must be I guess when you want to eliminate slop and flexing, the weakest link gives. Metal gear servos then? They're not much more expensive (4 bucks or so a piece instead of 2) and are quite a lot better at taking abuse in my experience. Good luck!
brown cable means ground ( minus )
red cable means Vdd ( plus )
yellow cable( or orange ) means signal
Puls is 50 Hz 1ms to 2ms rectangle as for analog Servo.
no 180°* possible because of mechanical limitation as is normal.
If you need 180 degree´*s use a retract servo.
brown cable means ground ( minus ) red cable means Vdd ( plus ) yellow cable( or orange ) means signal Puls is 50 Hz 1ms to 2ms rectangle as for analog Servo. no 180°** possible because of mechanical limitation as is normal. If you need 180 degree´**s use a retract servo.
This servo is very stressresponse and good looking becouse of it very nice colour! This is the best price!
6 comments. Reply..
12 days from order to receipt and I paid the cheapest/slowest shipping, air mail non registered which was $2.99 shipping.
Received 4 of these and tested them all out.
You know what? darn nice servos that come out to $2.64 each with shipping!
Each one was spot on 10g just as advertised.
The bag with the horns and screws weighed in at a wopping 2g and half of that was the bag.
Hooked them up to a little park futaba fasst receiver and ran these from a 5cell Nimh pack, so 6.6v for testing.
Ran the servo movement test and then the neutral test.
smooth, fast and centered perfectly well. All four operate as smooth and quick. Oh and each one responded to single clicks of trim.
The wire with the plug is 7 1/2 inches long and the wire seems to be very soft/flexible silicon.
If you are looking for inexpensive servo's for your foamy or small park flyer, I'd use these.
Next, I'll take one apart and have a look under the hood
6 comments. Reply..
Verry good servo for unbeatable price.
Minimal consuption is 4,9 mA , maximal is 330 mA at 5 V.
For examplle HXT 900 : 6,1/300 mA.
Thanks HK !
Bought 5 pieces, despite this color as the glowing orange. to try. The price is excellent, although the color I disliked.
1 comment. Reply..
Just received my servos. I purchased 5 of them and the price including shipping was the same as purchasing 2 Hitec HS-55 feather servos. Comparing these with the HS-55 they weigh in about 2 grams more that the HS-55. The case feels tougher than the HS-55 and I think will be less likely to be crushed when screwed in. I like the orange color and will purchase more in the future. These are great servos for the flat foamies people are creating. I plan on building a flat foamy soon to give these servos a workout. These are also great for small park fliers. Expect more orders once I show these of to my friends at our RC Club.
HobbyKing did great in bringing us these great servos.