Nice brief article explains winglets & shows some new and unusual concepts

From Things With Wings - AvaitionWeek:…

Continue

Another cool plug-and-play EDA tool with circuit template library for EagleCAD - thanks to open XML (aforementioned)

From HackEDA via …

Continue

Modern fault-tolerance design for aircraft does little to help when big parts start falling off. This study proposes a design approach / philosophy for keeping things aloft during broader system failure.

From PsysOrg: /

"For example, the group studied the plane’s operation during…

Continue

By far the coolest phone / tablet app I've come across. EveryCircuit is a simple SPICE circuit design tool with a slick touch interface, shows voltage and current animations and more.  This is no doubt the look and feel of circuit design tools for the future. Also could be a fun, easy way to…

Continue

Nice IMU project spotted on Dangerous Prototypes with MEMS gyros and accelerometer, Cortex-M3.

"The IMU is supposed to be high-end, implementing state-of-the-art data filtering, best low-cost MEMS sensors available and many features to compete with commercial IMUs used in…

Continue

Nice series of CadSoft Eagle tutorials from HackADay

 

I have yet to work with Eagle but am now motivated to do so on account of the aforementioned improvements…

Continue

For those into board design, Eagle is a nice free (for non-commercial use) option which has, until now, lacked XML structure.  Eagle will soon support importing & translating from other formats among other productivity improvements.  Until now, this compatibility issue has prevented myself and likely many others from using Eagle as a primary PCB design tool.  I believe the DIYD crew…

Continue

All patent graphics: USPTO [moderator edit]



Some unusual new design schemes for UAVs were recently granted US patents. Continue

We all are working hard to get this done as soon as possible. And as relief the pain of wait, here are some previews of new ArduCopter frame designs for the masses to look and to comment.



Current design will have two center plates like most of multirotors have, it also have carrier boards to carry electronics like APM, APM shield and Receiver. Another carrier board will be mounted under main frame to be as a battery holder it also creates supporting base for future landing gear… Continue

Can anybody shed some light on the accuracy of the airflow around the fuselage on the attached image? The wing is based on the GM15 foil. Rest of the details is in the picture. The modeling was done with XFLR5.



Does the results of lift, drag etc look credible?…

Continue

I am looking for help to build a plane similar similar capabilities found in the BAT 4 UAV (http://www.spyplanes.com/pages_new/products.htm) but on a shoe-string budget.



Payload 30 lbs + fuel

GPS Guided for route and altitude

Rugged and Smart Design for Craft

Manual or Automatic Takeoff and Landing

2-stroke engine

11k Foot Ceiling

Fixed Landing Tundra Gear

100 Mtr Run Way



I have a small gold mine that I am starting up in Ecuador, South… Continue