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Title: Servoless Retractable Landing Gear Post by: Manav_Ahluwalia on March 14, 2011, 01:32:57 AM Found something interesting on HK. Thought of sharing it. Take a peep... :)
http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=11301 Title: Re: Servoless Retractable Landing Gear Post by: warriornair on March 14, 2011, 06:46:54 AM i think rcforall is also selling this!!!!!
Title: Re: Servoless Retractable Landing Gear Post by: rohitgupta322 on March 14, 2011, 03:31:13 PM Isn't the servo mechanism built inside it? It can't be actually servoless?
Title: Re: Servoless Retractable Landing Gear Post by: flyingboxcar on March 14, 2011, 06:25:49 PM Rohit there is no servo, the retracts are actuated by motors turning a jackscrew which raises or lowers the retract legs. You just need to plug the retracts into your receiver retract channel
My foam P47 from FMS came with these retracts installed. I have some pictures of the retracts working in flights at my thread. Title: Re: Servoless Retractable Landing Gear Post by: rohitgupta322 on March 14, 2011, 06:42:14 PM Ok thanks flyingboxcar. I had the doubt because the description on HobbyKing said "Reliable servo mechanism with metal gearing and a high torque motor ensures trouble free flying!"
Title: Re: Servoless Retractable Landing Gear Post by: flyingboxcar on March 14, 2011, 06:56:50 PM Rohit,
Do not go by Chinglish, most of the instructions/literature from them make for good entertainment :-) Title: Re: Servoless Retractable Landing Gear Post by: rohitgupta322 on March 14, 2011, 06:59:06 PM ;D ;D ;D
Then i guess this would be more realistic than using the servo mechanism(i.e if we are not using something to slow down the servo speed). Title: Re: Servoless Retractable Landing Gear Post by: Manav_Ahluwalia on March 15, 2011, 12:06:06 AM @ Flyingboxcar: Are these any good? ???
http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=14838 Planning to use these on my 0.60 size warbirds. Just saw these, seem like an option: http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=15211 http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=15209 Would love some :help: Title: Re: Servoless Retractable Landing Gear Post by: flyingboxcar on March 15, 2011, 10:00:10 PM Manav,
Cant vouch only ones I have used is the one which came installed in my foam P47. But the ones I have withstood few landings and one crash. Then I would always prefer these on electric powered ones as the power would be drawn from the main battery and in case of voltage drop there would be safety of the ESC cutting out power. Whereas in a glow model unless using a seperate bty pack for the retracts any jammed or binding retract would mean end of model Plus I would take the stated model weight (suitable for the retracts) with a pinch of salt. So if they say it would take 4 Kg aircraft I would treat that to be 3 Kg or thereabout to be on the safe side. How much does your 60 size weight all up? Title: Re: Servoless Retractable Landing Gear Post by: Manav_Ahluwalia on March 16, 2011, 01:07:21 AM @Flyingboxcar: Not sure about the actual AUW. The planes were recently bought and still sleep in the boxes. Just collecting information on the engines, servos, retracts, in cowl fuelers etc etc i would like in them.
I am looking at retracts for P51, SpitFire & the TA6-Texan. All are 0.60 size ARF's by Phoenix. The manual says: 3300-3600gms. Think that should be the AUW as per the manual. BTW the kits come with mechanical retracts but not very impressive and not at all scale like. Would prefer using something like these but for a 6kg load: http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=15211 http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=15209 Title: Re: Servoless Retractable Landing Gear Post by: Manav_Ahluwalia on March 16, 2011, 01:19:33 AM Found these as well. Saw these at Amby Valley '11, world standard, excellent quality and very proud that they are made in India!
http://www.umstech.in/view_product_details.php?pid=53&cat=Landing Gear Accessories http://www.umstech.in/view_product_details.php?pid=58&cat=Landing Gear Accessories Title: Re: Servoless Retractable Landing Gear Post by: sushil_anand on March 16, 2011, 01:24:05 PM Manav.
These are only the oleo legs. The retract mechanism is separate and is usually pneumatically operated. Title: Re: Servoless Retractable Landing Gear Post by: Manav_Ahluwalia on March 17, 2011, 12:44:12 AM Absolutely correct. Have mailed UMS for specs and will try and see if they are compatible with electric retracts. BTW any news on the Hitec servos?
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