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 Post subject: RC Today Show 145: Ben & Cody Show
PostPosted: Mon Nov 10, 2014 7:46 am 
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Joined: Wed Jul 27, 2011 8:13 am
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Location: Caldwell, TX
Chris takes a break while Ben, Bobby & Cody do their best to fill his shoes. Tune in the hear about Cody's new airplane, how Bobby is using his good friends, and Ben's latest airplane conversion and Jayhawk electric tail conversion. :clap

http://wp.me/p2wnPS-xi

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 Post subject: Re: RC Today Show 145: Ben & Cody Show
PostPosted: Mon Nov 10, 2014 11:01 am 
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Joined: Fri Feb 28, 2014 3:56 am
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Canted tail rotor on the H-60 indeed takes advantage of the vertical thrust vector to give the aircraft a wider range of lengthwise center of gravity.

Glad to hear you're getting on with the motor conversion.

:)


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 Post subject: Re: RC Today Show 145: Ben & Cody Show
PostPosted: Mon Nov 10, 2014 2:14 pm 
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Location: Houston, Texas
Thanks Jon

I knew I hadn't imagined it but i was beginning to doubt myself...

I need all the help i cant get to get the heli within CG i hope i can see the same benefits on the scale heli.

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 Post subject: Re: RC Today Show 145: Ben & Cody Show
PostPosted: Mon Nov 10, 2014 3:10 pm 
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Happy to help. I'll try to answer your questions...

Some raw video:


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 Post subject: Re: RC Today Show 145: Ben & Cody Show
PostPosted: Tue Nov 11, 2014 8:14 am 
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Joined: Thu Aug 25, 2011 9:14 pm
Posts: 1910
Location: Bryan, TX
So I've looked at the new EF MXS and Laser and they're saying it needs a minimum of 300 ounce/inch torque servos for the control surfaces. Any special reason for this?

Not trying to stir the pot but I remember flying bigger planes with 180 ounce/inch torque servos for the ailerons and elevators.

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 Post subject: Re: RC Today Show 145: Ben & Cody Show
PostPosted: Tue Nov 11, 2014 11:36 am 
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If I remember correctly it doesn't have to do with how much torque that is required to move it, but the force required at high speeds with such large deflections and surface area. As you know these 3D airplane of today have control surfaces that are huge compared to that of 10 years ago. With that the increased deflection is insane. This is where Cody, James and Rob talk about the blowout of a servo.

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 Post subject: Re: RC Today Show 145: Ben & Cody Show
PostPosted: Tue Nov 11, 2014 5:08 pm 
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The real reason is planes these days have big surfaces and a lot of throw, as well as a lot of power. I flew my 78" Extra with 180 oz in servos and blew them back pretty badly. I went to some 7955's and it was much, much better. That was with a piped SAP 180 engine. Now we have even more powerful options available in the form of the VVRC 40, DA 35, and of course electric stuff. The MXS has larger surfaces than the Extra and less drag, which means hell for weak servos.

If you look at the common servos available, there are a lot of good options with over 300 oz in of torque...Hitec 7955, Savos 1270, etc. There isn't a huge price jump from the lower stuff to something with 300 oz in. So it really doesn't make sense to use or recommend servos that may be marginal.

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Proudly sponsored by ExtremeFlight, Twisted Hobbys, Desert Aircraft, Spot-On USA/Secraft USA, Castle Creations, Pulse Battery


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 Post subject: Re: RC Today Show 145: Ben & Cody Show
PostPosted: Tue Nov 11, 2014 6:14 pm 
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Joined: Thu Aug 25, 2011 9:14 pm
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Location: Bryan, TX
Cool.

I have some Hitec 5945's from back in the day. I'd like to put them in something but there aren't many planes anymore for a standard servo that needs less than 250 ounce/inches of torque.

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 Post subject: Re: RC Today Show 145: Ben & Cody Show
PostPosted: Tue Nov 11, 2014 9:24 pm 
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Wow, I still have a couple of those kicking around as well. Blast from the past.

They will probably work fine in a 70" plane though.

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Proudly sponsored by ExtremeFlight, Twisted Hobbys, Desert Aircraft, Spot-On USA/Secraft USA, Castle Creations, Pulse Battery


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 Post subject: Re: RC Today Show 145: Ben & Cody Show
PostPosted: Wed Nov 12, 2014 5:37 pm 
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Joined: Mon Jul 25, 2011 5:07 pm
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Location: West sussex, UK
Cody, you mentioned not being able to switch frequency on the video of your hubsan wotsit. I have one and have only ever used my fatshark predators with it. A few of the frequencies it will pick are on the immersion channels. If I can't pick it up on the goggles I simply unplug and reinstalled connect the power and it usually finds a frequency in the right range for the goggles to pick up.

So going on that I assume that switching the power off and on makes it choose a new frequency. Have fun
/Steve


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