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This may sound harsh, but coming from the Linux world, to put it bluntly, they are just a pain in my tush! So every time I open a ppt slideshow with LibreOffice, and then it is in an editable mode, and that is no good. But then I can "Export" it as a pdf file. (PIMA) but by rooting around on the Internet today I found I can run LibreOffice in a headless mode.   libreoffice --headless --invisible --convert-to pdf  .pdf   So I can now put it together in a little shell script and ...
If you look up Angle in the Wikipedia , it claims that there are four (4) methods of  measuring angles: Degrees, Radians, Turns, and Gons. But they are really five (5) and that is BAM or Binary Angular Measurement. If we get rid of Turns, and Gons. That leaves three (3): Degrees, Radians, BAM. Only Radians and Degrees units of measurement  do well with Floating Point math.  But when we use BAMs its BAM32 or BAM16 and they are Fixed Point Math. So I will show you Degrees to Radia ...
Why did I say: "The Earth and its mathematics", because all of the math used in flight, or navigational simulators or SPS(games), are based on the Earth and it's dimensions ~ though the NAV simulation represents but a small fraction of the math used in flight simulators. figure 1 ➀ Having nothing to do with the definition of Nautical Miles (“nMile”), from ???, we know that at the Earth's equatorial circumference is 21,604.2 [or 21,639 or ???] nMile. From High School Math and Geogr ...
You should know by know that I have a pension for things that well blow up or end badly. You can alway go to the German Safty Test video for your giggles.  He now (1:52 - 2:39) draws and explains a schematic of the power supply of this silly thing. For some strange reason, he puts a transformer after a bridge rectifier. Now when I went to grade school (a long, long time ago, when we did "duck and cover")  and you found out that DC will not make a magnet. You just don't create the magne ...
Ok, Hold on buckle in. This post will not be pretty.  THE PROBLEM: Is the Arduino's instance on their IDE and a crippled ANSI C/C++ language called Sketch.  By the time, you have written a couple of what they call a Sketchs. They have really messed with you. As the two functions that basically you use are setup() and loop(). My aim here is not to teach you how to write a nice program in ASNI C/C++.   harrison@Whirlwind ~ $ ls Tools 2wgs eclipse-avr QnewB 3wgs FileZilla3 Renesas ...
MPCD Prototype Figure 1 Well, here we are back at the MPCD, I have blogged twice before about this unit. First, where I got the pin-out for  MPCD and got it working. Then I had to rewire the cable. Well, now it's the third time.. The Interface ( switches ) are arranged in 5 x 4 matrix, so I could just build a matrix, add diodes, and write a scan module. Nah, that's too much work! If you remember my CP-1252/ASN-128 CDU (Figure 2).  I interfaced the CDU  with an Arduino and t ...
My Lab Figure 1 Ok, Not quite everything I do makes some form of loose flying and then landing crud, dust, FOD or whatever you want to call it. I'm going to refer to it as FOD or Foreign Object Debris. In your shop, FOD is something that you want to manage and or mitigate. Personally I live small 2 bedroom apartment, and I don't have a lot of room. My lab is about 11 x 13 feet one wall is just storage. Sometimes you can't even walk around,  and I alway  have too much going on at onc ...
phoenixcomm

NexGen: Rudder Pedals

Posted by phoenixcomm Top Member Jul 31, 2015
Well, you know you need rudder pedals to perform coordinated turns, and differential braking. I used to have this solved with a  Thrustmaster  RCS (Figure 1), But in moving etc they got strayed, misplaced or stolen. Sometime in 2011 I came across this hot mess (Figure 2) using two (2) air cylinders cross plumbed, ensures device centered. Thrustmaster RCS Figure 1 A good idea, bad implementation. Figure 2 CH pedals Figure 3 CH pedal internal Figure 4 Athough the pedals ...
Ok this is more of a bather than a post. Buckle up the ride will not be smooth! The US National Highway Traffic Safety Administration (NHTSA) in April 8, 2005 said it should be on all cars by 2008 and now trucks.. ok thats cool. Commercial Aircraft have had them for years BC (Before Cars) .. But in between those 2 camps there is a huge Black Hole. Whatever  you wish to call the tires, ie: rubber, skins, sneakers, and others. Tires are the most ignored, or understood part of your plane. You ...
Function Generator Image 1 This is one of thoughs things that just comes along. It is a B&K Precision 3010 Function Generator, it was 5 bucks at the local Goodwill. It did not have a power cord set and I'm never going to find one (image 2). Power Plug not NEMA Image 2 Hack #1 Image 3 Hack #2 Image 4 This connector is not the standard oval, its smaller. Over time I have seen some terrible hacks, good ol' Southern Engineering, Rigging, etc (please see images 3 and 4). But I'm ge ...
You had that pile of transistors and you didn't know if they worked? Well I know I have... So today while rummaging around Before we started Image 1 in my local pawn shop I spoted this old tester in one of the stores bins. I was labled in Spanish no less.  It was marked $14.95, but I got it for 5 bucks.. When I opened it up, I found out was rather crude, and nothing to write home about.   The Guts No Blood yet Image 2 The Schematic Image 3   THE PLAN: I would like to have ...
Ok what in the world of Microsoft and Windows and Linux is NFS and why do I need it... Really I'm very happy with SMB or CIFS,  or Samba (reversed engineered SMB) so why change to NFS?? SMB is a kludge, its what you see is maybe what you get. and it really is not Open... CIFS is single threaded which makes it SLOW! and NFS just works, and it's dam fast!!   History: NFS is a distributed file system protocol originally developed by Sun Microsystems in 1984, allowing a user on a ...
Well it looks like I found a working 5 volt supply that works!   It's a Lambda LXS-A-5-0V (a brick, and this is stock photo off the web)..  So I wanted to test the the power supply. So I grabbed  the Fuel Load Indicator, that I tore apart in my blog post NexGen: Hacking the Fuel Load Indicator. I hooked my +5 to pin 16 of the display and Ground on pin 17 and I got the following: Manufacturer: LAMBDA Model Number: LXS-A-5-0V Output Voltage: 0 - 5 vdc Output Current: 4 amps ...
I guess, I am just a glutton for punishment, so my next victim is a HP Harrison 6284A power supply.  It seams in good shape so it should have been a safe bet. The only thing that I saw wrong was that the power switch lamp and push/lens cap was missing not a big deal as a small screwdriver will turn it on... So I hooked it up and put a meter on it.. The output is adjustable.  The meter pegged so I though I was just on the wrong scale, but fickle is the equipment gods, and as I changed t ...
Well the next victim is my LAMBDA LP 411 FM.. This needs the ER.. Picture 1 tells the tale.  I need a new meter new binding post (black) I should have that at least. Also the current meter needs both a new lens, and scale the meter itself looks ok.  The meter looks like a standard 1.5 inch GE movement (ebay).  The current limiter shaft is bent, I don't know if that can be fixed.   By looking at the yellow triangle it said 81/82  but the orange tag says: 1972/73.   M ...