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Digital Servoless Retractable System (1pc) 37g

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Digital Servoless Retractable System (1pc) 37g

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$8.22
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  • USA
  • Global
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Status:
Backorder
SKU:
HKD-312
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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: 4.5~5.5V
Speed: 0.7s/60deg 4.8v - 0.55/60deg 6v
Idle current: 3mA
Angle limit: 90 degree when retracted
Operating temp: -10~50C
Weight: 37g
Shaft size: 3mm
Mounting area size: 35mm x 33mm
Length: 67mm
Not suitable for a plane heavier than 2.5kg
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John | Verified Buyer

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sistema retrátil Servoless Digital

Oct 04, 2020

Works fine.

Geoff | Verified Buyer

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Undercarriage

Aug 19, 2020

I purchased 2 digital undercarriage units from hobby king to replace both on my E-Flight spitfire. The fit was perfect, I didn’t need to adjust or alter anything and so far they have worked perfectly.

Nono | Verified Buyer

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bon Train rentrant

Jun 24, 2019

Un bon train rentrant dommage qu'il n(y ai pas des BTR pour bloquer la CAP de 3mm.

Doug | Verified Buyer

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Same Dimensions Different P/N

Jan 12, 2017

Today I received my servoless retracts from USA(W) warehouse, and I was surprised that instead of P/N HKD-312 I received P/N HK-15090. They appear to be identical and comparing them dimensionally to the illustrations that have been uploaded to "Files" that they are the same. I had a chat with Product Support who were very helpful and patient as I explained my puzzlement. I suspect that soon there may be a new P/N entered into the on-line catalog with the appropriate product description...but in the meantime, I plan to install these retracts into the Hobby King DC-3/C-47 Kit I bought a few weeks ago! They fit perfectly!

| Verified Buyer

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Certified Buyer Rated

Aug 01, 2016

I have put a pair of these in my Focke-Wulf FW 190D 1550mm span ARF plane. Needed a little bit of adaption of the wheel well but seem to work well. Quite tough for plastic retracts.

bruteforce | Verified Buyer

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Customer Rated

Jul 22, 2016

Astounding value for money! I use these on a 550 size Bell222 and a 600 size Airwolf. general fitment is great, no fiddling with servos and links that need to be exactly right. Fit & forget. Nice slow action and sturdy construction. Remark: Only use them on 4,8V or they may fry themselves.

Soomin | Verified Buyer

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Certified Buyer Rated

Jul 04, 2016

Good Item. But I can not find still wire for this item in Hobby King. I just buy japan shop OK model parts. It's perfect fit with this item.

bruteforce | Verified Buyer

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Customer Rated

Mar 22, 2016

I've bought these for use in a .30 size helicopter, the Hirobo Bell 222. Very easy to fit as there's no servos needed for them. Work great and have a nice slow movement.

aus72601 | Verified Buyer

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Certified Buyer Rated

Jan 22, 2016

This retract is great for the price. It operates smoothly and without any trouble. Also, it is super strong and lightweight. I love it!

| Verified Buyer

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Certified Buyer Rated

Sep 23, 2015

Very good retratable gear for the Quadcopter Q450.

A lot of power, and it`s work very quite.

Customer files
PZ_P47_HK_Retract_Install Download [783]
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