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  Item found in the following categories;
> Servos & Parts > All Servos
> Hardware & Accessories > Wheels/Landing Gear/Retracts > Retracts

  RATED:

Digital Servoless Retractable system (1pc) 54g

Digital Servoless Retractable system (1pc) 54g

The easiest way to put retracts in your plane. No need to install a control box, messy wiring or a complicated air system. Just screw in the retracts, connect to your Rx and youre ready!
Reliable servo mechanism with metal gearing and a high torque motor ensures trouble free flying!
Why bother with air systems when you can now have a realistic and reliable electric unit at a fraction of the price?!
Landing gear not included with the servoless retractable system.

Features:
Robust landing gear strut and mounting bracket
Built-in 10 seconds over current and jamming protection
Integrated electric motor with a micro PCB
Double shock absorption design, completely protect the gears
Auto 90 degree twist when retracted 

Spec.
Working voltage: 4.8~6V
Speed: .08s/60deg 4.8v - 0.6s/60deg 6v
Angle limit: 90 degree when retracted
Operating temp: -10~50C
Dimensions: 73.5x44x28mm
Weight: 54g
Shaft size: 5mm
Mounting area size: 44mm x 41mm
Length: 74mm
Not suitable for a plane heavier than 4.7kg


PRODUCT ID: HKD-514

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Weight: 75g
Quantity: 
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stock
10+
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Price  $9.10

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 Customer rated
5113
crowns
  
 
Total of 103 discussions.
Nicolas  1 points - 2/26/2015
 
walk to a plane .40 glow ??
 Christ 724 points
Hello Nicolas yes they are perfect for a plane in the 2 to 3 kg weight. A trick is to add a tie wrap on the mechanism befoer installing so that the cover will not be able to deform on a bad landing. Enjoy flying
stefano  3 points - 2/17/2015
 
which of these is suitable for the fuselage of the b-25?
 Christ 724 points
hello Stefano, which size of plane? is 1 question* the 2nd is to remember that they are moving only 90 degrees, so not really easy to accomodate in a B25. Enjoy flying
Helder  2 points - 1/20/2015
 
bought one of these just because i wanted auto-twist feature when retracted for my F4U-1D. Well it seems HK has mislead customers who search this particular feature because this there is no AUTO TWIST FETURE or anyway to enable it. Very disapoiting.
Terminatertom  17 points - 1/20/2015
 
Would be nice if they sold spare mounting plates for these retracts - even better plates made out of metal
Derek  1 points - 12/22/2014
 
Hooked 2 retracts to y-harness and plugged into gear channel but doesn't function. Tried both 4.8v and 6v, not even a hum much less any movement. A standard servo functions, when plugged into the same harness. What's even more confusing is that I bought 4 of these and none of them function. Is it possible that I've gotten 4 duds or am I not doing something correctly?
 Jason 61 points
Ive heard other people says the same thing. They also mentioned using a "landing gear" setting or switch. Try just setting it as a normal switch rather then a gear, and maybe adjust endpoints. I use a FlySky TS-6 transmitter and I just plugged it in directly to my receiver channel 6, assigned channel 6 to a 2 position switch on my transmitter and it worked fine.
 Derek 1 points
Okay. Figured out that it was the programming on the gear channel of the transmitter. End points weren't set to 100%. Units work fine now and cycle as they should.
Customer Reviews
Review Blogs for this item
Servoless Retractable system
np4tn
Overall Rating
Voodoo-cz
148 likes
ValueUNRATED
QualityUNRATED
4 thumbs up!
These are quite nice. Case is quite hard (for plastic), it should be able to withstand landings with planes around 4 kg. But, it does not come (at least mine did not) with 90 degree twist mechanism, neither it twists by itself. Quite a disappointment for me and my .40 Corsair. As a modeler I'am able to make my own mechanism, but they simply don't keep what they promise in description. 4 stars because of it.


8 comments. Reply..

Overall Rating
XTRA40
38 likes
Value
Quality
1 thumbs up!
good produckt to bad u do not sel the legs for it
the are 5 mm and hard to get so have to make them
your selfs


5 comments. Reply..

Overall Rating
Axiom
4 likes
ValueUNRATED
QualityUNRATED
1 thumbs up!
Type your review here.
Try to include as much data as possible.Unfortunatly only four stars. units work perfectly, no problems. However no grub screws to hold landing gear included in the package, I have to wait to install the gear until I can obtain grub screws. ( no good going to the local hardware store). Should be made clear in the specs Etc. that these are not included, better still include them in the package and charge a little more. If anyone is interested, I have two units, one coupled thro a servo speed controller, does not control the speed but delays the action of one unit. One unit almost retracted before the othe starts to move, very scale on Hurricane & Spitfire


2 comments. Reply..

Overall Rating
drdiscus
112 likes
Value
Quality
1 thumbs up!
Main Body
Width=21mm
Height=25mm (loading plate is additional 3mm)
Length=74mm
loading plate hole pattern=36mm wide x 33mm long (4 3mm holes retangle spacing)
the main body has a short hump for two of the load plate/main body attachment screws. the brass pivot for the landing gear leg block/holder is threaded m2.5 for 1 or 2 set screws for securing the landing gear leg, wire or carbon rod. The hole in the block for the leg is 5mm. Transit is 90 degrees / less with slack from wear allowance, and with locational clearance fits, and movement allowance fits. It is fairly precise, not less than 89 degrees when new. I suspect, as with all model accessories, the transit will come into 87 to 88 degrees after some wear.


2 comments. Reply..

Create an account
Overall Rating
Dangaras
447 likes
Value
Quality
1 thumbs up!
These new servoless retracts are pretty good. Having an issue with the set screws not holding the struts in place. That is with both set screws in place.


4 comments. Reply..

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