James F.
  • Male
  • San Diego, CA
  • United States
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James F.'s Discussions

Synthetic Aperture Optics

Started Feb 11, 2011 0 Replies

Does anyone know how to implement a synthetic aperture optics system using a few cmos cameras?

Tags: fpv, optics, Camera

Carbon Fiber

Started this discussion. Last reply by James F. May 27, 2010. 2 Replies

Does anyone know where to get MJ46-MJ60 (High and Ultra High Modulous) carbon fiber tape?

Tags: fiber, carbon

FPV TX/RX for sale

Started this discussion. Last reply by Archangel06 Dec 10, 2011. 30 Replies

I have a few TX and RX units for sale. They are either 1.2 or 2.4Ghz and between 10mW and 1500mW. Prices are much cheaper than rangevideo. If you want pictures or more info let me know.

Tags: sale, for, receiver, Transmitter

VPP through ArduPilot

Started this discussion. Last reply by Doug Weibel Apr 9, 2010. 5 Replies

Has anyone ever tried to control a variable pitch prop through ArduPilot?

 

James F.'s Page

Latest Activity

James F. replied to Ellison Chan's discussion Brainstorming Specifications. in the group DIYDrones - CNC Project
"Why not use a piece of honeycomb with steel face sheets? This will give us light weight and great rigidity with only a minimal increase in cost."
Jun 1, 2012
James F. commented on UAS_Pilot's blog post 40mm retractable camera turret
"I don't think I follow on some parts of the design. What pivots the ball about the horizontal axis? I see how the vertical axis works and I can see how the retract mech. could work... What is the wedge for? Where does the second servo go?"
Mar 14, 2012
James F. commented on UAS_Pilot's blog post 40mm retractable camera turret
"We should keep it simple. Start with a very simple retracting turret for a specific camera size and scale up from there. We just need to have an idea that everyone can play around with and innovate off of or poke holes at."
Mar 13, 2012
James F. commented on UAS_Pilot's blog post 40mm retractable camera turret
"If you send me the hand drawings I can CAD it up for you."
Mar 13, 2012
Archangel06 replied to James F.'s discussion FPV TX/RX for sale
"any more 1.2Ghz transmitters available? "
Dec 10, 2011
hoopty replied to James F.'s discussion FPV TX/RX for sale
"Still have any of these? Maybe 1.2GHZ or 5.8"
Jul 7, 2011
James F. replied to James F.'s discussion Carbon Fiber Easy Star for sale
"Very true, but they would have to have the same fuselage interface or you would have to create some sort of wing attachment "hard point". Might as well just buy the whole glider at that point..."
Feb 16, 2011
Hamish replied to James F.'s discussion Carbon Fiber Easy Star for sale
"Just buy some high performance glider wings to go with the CF fuse .   There is no point toiling over moulds for the EZ* wings when existing, more efficient, proven wings exist.  Just my 2 pence ;]"
Feb 16, 2011
James F. replied to James F.'s discussion Carbon Fiber Easy Star for sale
"I haven't weighed the aircraft yet but it will be heavier.  You can try using a single layer of 1oz carbon to make the plane lighter but the plane wont be sturdy enough, and you'll find it will deform even under the lightest of flight…"
Feb 15, 2011
James F. replied to James F.'s discussion Carbon Fiber Easy Star for sale
"I have produced a few of these out of fiberglass and will be happy to sell you a couple of halves as a diy kit. Just let me know if you want some pictures of what I have produced so far. I could do carbon or a mix/specific layup if you want as…"
Feb 15, 2011
James F. posted a discussion

Synthetic Aperture Optics

Does anyone know how to implement a synthetic aperture optics system using a few cmos cameras?
Feb 11, 2011
James F. commented on wayne garris's blog post techpod 2.0 progress blog
"What kind of vibration do you see with the thin member that connects the camera to the body? Have you thought about turning that into a torque box or using stringers to reinforce it?"
Dec 2, 2010
James F. replied to William Gross's discussion Help with wing and airfoil design
"1) I would base the airfoil off of an existing airfoil. From the looks of your airfoil you will have a lot of lift at slow speeds, but also a ton of drag and large moment. There are many tools you can use to come up with the wing design (x-foil is a…"
Nov 10, 2010
James F. commented on Chris Anderson's blog post DIY Drones in the Wall Street Journal
"@Paul I believe the pictures are just black and white. Also, the placement of the yellow boxes would suggest a description of the pictures, however the boxes don't describe the plane in either picture."
Nov 3, 2010
michael dunston replied to James F.'s discussion FPV TX/RX for sale
"i am interested ..please send me a link"
Oct 11, 2010
James F. replied to hamadivo's discussion Low cost Fiberglass
"You're going to want to figure out how to build it first. It's going to be hard to make anything larger than the size of a cell phone with that amount. Generally you have to factor in a waste quantity (40% or more depending on how much…"
Oct 5, 2010

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About Me:
I am an Aerospace Engineer with Northrop Grumman working on UAV design.

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