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arun

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Everything posted by arun

  1. A simulator will help to some extent, but it is no substitute to buddy-boxing with an experienced pilot while you learn. The classic problems with simulators are wind (or lack of) and depth perception - ultimately nothing beats real stick time. Also, simulators don't talk you through good field craft, and flying safety. Re: failsafe - you must use these if you have one and all it will do is move one (or more) servos to a preset position on signal loss (it will not do any levelling, heading setting etc. so if you are pointing at the ground during signal loss...). However, neither 2.4Ghz or
  2. Been "reading" the French modelling press (Modele Magazin RCF) while over here. The included plan is SpaceShipOne + White Knight with a very detailed build article. White Knight is even design to detach in flight and be flow using a separate Tx as a solid fuel (as in Estes rocket engine) powered/glider! Rough photo below (click for bigger version), but if anyone want a challenging project they're welcome to the plan and a copy of the article! [attachment=0]IMG_1469_sm.jpg[/attachment]
  3. ... gutted, but without knowing all the facts don't want to jump to conclusions. So sad how many hours of time freely given up by members of the club to organise appears to have been lost, but clearly safety and legality is paramount. For those who didn't get e-mail, see here: http://www.southernmodelairshow.com/
  4. Why stick to planes? http://www.popsci.com/diy/article/2012- ... red-dragon
  5. arun

    Ooh - Pi!

    We had some recent success with Element14 as a supplier, try them.
  6. The guy gave me the normal gyro for free (rather than pay for me to post back), and was good for his word - a pro arrived a few weeks later. Sadly, both are still in their boxes due to realities of parenthood. Might try and get the pro fitted on an RCF Flash for some evening flying at SMAS. Off topic, but am on way to France for 2 wks. Have the Blade MCPX packed for flying each evening in the chalet grounds
  7. Quite. Or maybe, if you can afford to do that - just get a PPL + aeros qualification and go fly
  8. http://www.flyinggiants.com/forums/show ... hp?t=76329
  9. I want to bench run my DLE30, but am cautious that it is a powerful beast ... any recommendations for the best way to mount it to the bench, and how many concrete blocks I should attach to the bench to stop a "fly-away"?! For those interested, I want to do this purely for the engine's good while it is in "storage". I'm unlikely to fly the plane this year or even next at my current rate of flying days, but want to flick the engine over once in a while to stop the diaphragm drying out etc. Easiest way for me to do this is to bench mount it at my Dad's place and run it once in a while as it a
  10. arun

    Ooh - Pi!

    Dave - you asked about hardware - this is what I have currently... GPIO can drive the 3 LEDs independently, and pressing the tactile switches signals back to the processor. Have a Python program controlling it currently - plan is to do same thing in C, then ARM assembly - then I think the way if paved for interesting control projects. Black wire leading out to bottom right is the serial connection so I don't need to use Ethernet/ssh to connect.
  11. arun

    Ooh - Pi!

    Great free magazine this of RP project ideas: www.themagpi.com @Jim/any other admin - maybe we need an 'other interests -> computing' section of the forum so can split up all these posts. It seems like at least some people are interested.
  12. arun

    Ooh - Pi!

    Jim - I thought Trevor already answered you! #include main() { printf("Hello, world!\n"); return 0; } You can use C or C++ - just install the GCC packages for the compiler (as root): apt-get install gcc Then: gcc hello.c ./hello If you want a simple test program, clone this code I wrote for an echo server try this (not promises it works first time as typing commands from memory): Required packages: apt-get install aclocal apt-get install autoconf apt-get install automake apt-get install git Get the code, configure it for your platfo
  13. arun

    Ooh - Pi!

    Jim - good idea - I haven't actually added VNC yet - maybe I will but I do like the terminal I've bought some breadboard + jumper leads etc. and am currently trying to control an LED via the GPIO ports. Halfway through trying to work it out myself, I found this video and got distracted as it covers most of what I want to do... Except I plan to write in ASM/C rather than Python as that is the attraction to me ... (I know, what a weirdo) http://www.raspberrypi.org/archives/1417
  14. arun

    Ooh - Pi!

    +1 ... never grow up - it sucks
  15. arun

    Ooh - Pi!

    @Jim - http://www.penguintutor.com/linux/raspberrypi-webserver I've check the "setting up networking" and "enabling ssh" sections and they both look pretty sound for Debian.
  16. arun

    Ooh - Pi!

    Limited? It's a complete computer on a board... you can do anything with it as long as you fancy programming ... Maybe we need a coding-101 club night once winter draws in?
  17. arun

    Ooh - Pi!

    I jumped the queue earlier this week somewhat fortuitously when a friend at work had two delivered and decided to keep only one. So it is now up and running! Using ArchLinux for now for some initial hacking. Have built a serial cable for mine using an old Nokia CA-42 data cable on 3.3V serial (see this technique). As such, I don't need USB keyb/mouse as I just access it either over network using SSH or on the serial port if network is down. Also purchased a nice case on eBay! First project is some ARMv6 assembly language and checking I can cross compile from my intel_x64 desktop and then I
  18. This changes the graphics beyond all belief and amazing weather: http://www.realenvironmentxtreme.com/ Ditto for ground textures: http://www.flight1.com/products.asp?product=gexeurope And then you need a Spitfire: http://www.realairsimulations.com/spit0 ... it08_intro I've tweaked my setup heavily, but it flies (haha) along on my super-computer without breaking a sweat
  19. Nearly as good as Martin and I re-purposing our projector at work
  20. Dave - I had exactly same issue yesterday! I contacted the guy I bought it from in China (eBay - gadgetextreme), he has agreed to rectify the issue and said it would be in post today, with me in a couple of weeks. I put this down to packing error, but not good to hear it happened to you also. I wonder if he was trying to pull a fast-one. Here's hoping I actually get a Pro. So far he doesn't seem interested in me sending the other one back, so at least I have something. Arun
  21. arun

    Fuel proofing tank bay

    Don't take this advice too seriously, but tongue in cheek... The decision to do it depends on your assessment of whether the airframe will decay due to fuel absorbed over a longer period of time, or one too many enthusiastic low-passes/tree gap runs/unscheduled landings that end the model way before this Really depends on the model and a realistic assessment of its expected life! One other thing to consider in what you described - if you already have a leak and fuel has penetrated the wood, proofing on top of it is unlikely to help matters... it's too late for that wood sadly.
  22. Funnily enough I received my "standard" one today - i.e. non-switchable. Have listed it on eBay for £17 and ordered a PRO as much prefer to switch in flight so my test bed RCF Flash model isn't always "cheating" and a I can use it for real practice too if I can turn the gyro off easily. Shame this wasn't available a few weeks ago Dave as I remember we had this very conversation about switching. I was actually just starting to think how I could build an circuit from common components/semis to read the signal wire on another channel from the Rx and isolate the gyro if switched... but now I
  23. Anyone got anything to say about the Tony Nijhuis 46" spit? I know we've been here before (Magnatilla), but I have the building bug and given the new family member means more time at home in evenings, you never know... http://www.tonynijhuisdesigns.co.uk/Spitfire46.htm Alternative would be a Cambrian Fun-Fighter, but I prefer the built up wing of the Nijhuis.
  24. arun

    C of G bi-plane

    Digitised version of the excellent article in RCM&E last month about biplane aerodynamics. Including two methods for calculating CoG. http://bit.ly/Jota6D
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