Joe Renteria
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  • Beaumont, CA
  • United States
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Latest Activity

Joe Renteria commented on OG's blog post New Design 50KW BLDC BRUSHLESS MOTOR 150HP MOTOR http://OFFTHEGRIDWATER.CA
"Nice. Looking forward to the specs..."
Jun 1
Joe Renteria commented on Martin Rüedi's blog post The Wearable Groundstation
"Sexy..."
May 31
Joe Renteria commented on Jose Luis Cortes's blog post Quaternium HYBRiX at XPONENTIAL 2017
"I am actually already off on Monday and Tuesday, and could probably get Wednesday, maybe more.  So that is three available days.  Also, I am in California, so there is another issue.  What did you have in mind?  Feel free to…"
Apr 2
Joe Renteria commented on Jose Luis Cortes's blog post Quaternium HYBRiX at XPONENTIAL 2017
"Best of luck, wish I could help but my Spanish is not great. By the way, based on your post, your English is just fine..."
Mar 26
Joe Renteria commented on Chris Anderson's blog post Analyzing Parrot's latest financial report
"Wow. That is very nice Rob. You can't beat designing something in CAD, then printing it out..."
Mar 4
Joe Renteria commented on Joe Renteria's blog post Tilt rotor/SLT hybrid
"Hey Mateusz.  I am looking at all sizes, from small UAV to small manned aircraft.  Sizing was made roughly in comparison with the ehang184. The wingtips are tilted through differential thrust by the thrusters themselves.  The…"
Feb 24
Mateusz Sadowski commented on Joe Renteria's blog post Tilt rotor/SLT hybrid
"Hi Joe, Good idea with the concept. It's a bit difficult to give constructive feedback without knowing the size of the UAV. Some of my thoughts are: * The motors and propellers seem disproportionally small * The wing is going to add lots of…"
Feb 23
Joe Renteria commented on Joe Renteria's blog post Tilt rotor/SLT hybrid
"Hi Martin.  This concept uses two separate propulsion systems.  One is optimized for forward flight, the other for hovering.  The nacelle propulsion only supplements the VTOL propulsion, allowing the VTOL propulsion to be lighter in…"
Feb 23
Martin commented on Joe Renteria's blog post Tilt rotor/SLT hybrid
"Unfortunately the requirements for for forward flight and hovering a very different. For forward flight the thrust needed equals to the the drag of the airframe, which is a lot less then the thrust needed for hovering. It is very inefficient to use…"
Feb 23
Joe Renteria commented on Joe Renteria's blog post Tilt rotor/SLT hybrid
"Thank you Rainer. I appreciate that..."
Feb 22
Rainer K. commented on Joe Renteria's blog post Tilt rotor/SLT hybrid
"Your ideas are getting better and better"
Feb 22
Joe Renteria posted a blog post

Tilt rotor/SLT hybrid

Separate lift/thrust systems are growing fast in popularity, to the point that there are already a variety of commercially available systems.  They seem to be the future and continually get better.  Thanks to our developers, Ardupilot has some great features like holding position with forward thrust and is becoming very good at…See More
Feb 21
Joe Renteria commented on Chris Anderson's blog post Pixhawk-powered ornithopter
"Now that is what I call a Pix, Hawk... Sorry."
Jan 3
Joe Renteria replied to Alexis's discussion Strongest Motors on the market
"After my first reply, I also came accross these: https://hobbyking.com/en_us/turnigy-rotomax-150cc-size-brushless-outrunner-motor.html A third less watts for half the price. For some info on using this in a multirotor you might find this…"
Dec 28, 2016
Joe Renteria replied to Alexis's discussion Strongest Motors on the market
"No sorry, I stumbled upon those by reading about an electric powered parachute project somewhere. They said that it was equivalent to the IC enine normally used..."
Dec 28, 2016
Joe Renteria replied to Alexis's discussion Strongest Motors on the market
Dec 27, 2016

Profile Information

Please tell us a bit about your UAV interest
I am a Pixhawk flyer, and am working on several VTOL airframe concepts. You can see my progress so far at electronflight.com.
Hometown:
Beaumont, California

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Joe Renteria's Blog

Tilt rotor/SLT hybrid

Posted on February 21, 2017 at 10:46am 6 Comments

Separate lift/thrust systems are growing fast in popularity, to the point that there are already a variety of commercially available systems.  They seem to be the future and continually get better.  Thanks to our developers, Ardupilot has some great features like holding position with forward thrust and is becoming very…

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Static thrust optimized EDFs

Posted on December 15, 2016 at 12:17pm 9 Comments

UAS Vision published an article on these EDFs optimized for static thrust.  Something I am constanly googling around for but never seem to find...

"The pan-European Neva Aerospace consortium, which is developing heavy-duty…

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Hover Bike/Bicopter - New multirotor configuration

Posted on December 6, 2016 at 10:10am 8 Comments

Hello everyone.  I have been working on a "hoverbike" configuration, and got a small but decent prototype up and running recently.  Thought I would share.

It is 3d printed, about 6 inches long.  It is modified from the initial print, which didn't give the dual tail rotors enough leverage to…

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Helicopter Concept

Posted on November 22, 2016 at 3:25pm 15 Comments

Hello everyone, I have posted about this idea before in the form of an aircraft which could transition between vertical and horizontal flight.  While I believe it is possible, especially in the form of a flying wing, the response I have received from this site as well as other sources indicates that most…

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Comment Wall (5 comments)

At 1:04pm on June 29, 2015, Winfried Rijssenbeek said…

Nice things on your blog! 

Yes we got the comments, but that is OK. if you have no experience, you might worry. Think your little 4 prop plane is interesting!

At 3:02pm on November 18, 2015, Jon Russ said…

Hi Joe, great design.  What software did you uses to animate? 

At 3:28pm on November 18, 2015, Jon Russ said…

Good to know, Joe.  I worked on a related idea several years ago.  The intent was to transition from a quadcopter to a flying rotor.  Essentially a free rotor (the helicopter equivalent of a flying wing) that would uses the torque and thrust from one set of motors to drive the entire air frame.  The unused motors could be shut down to conserve power.  The fuselage would be a symmetrical tube hanging from the rotor hub and spin with the rotor. Video would be captured with a wide angle fish eye lens.  The video would then be synchronized with the rotation speed to provide imagery at any point within the field of view.  The whole vehicle would fold down like an umbrella for storage in a hardened tube.

At 9:44am on November 19, 2015, Jon Russ said…

Sorry, no pics as I didn't pursue the idea to a full build.  The cyclic was going to be controlled by the servos that rotated the wing/arms from a vertical to horizontal position.  As the rotor rotated the servos would be synchronized to change the angle of attack of their respective blades opposite the intended direction of travel.

At 11:00am on November 19, 2015, Jon Russ said…

Joe,

Servo actuation has been shown to be consistently quicker than differential thrust.  One of the benefits of using servos in the rotor hub is that you are able to ditch all the mechanical linkages that can be pesky and transition to a "fly by wire" hub.

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