Coming to an end – successfully I hope

While Jarle works on the electronics I have been adding a few more hrs on the housing. Front frame was primed then spray painted matt black. Very pleased with the outcome. The remaining holes on rear face plates are completed since this photo was taken.
This Easter we hope to mate the casing with the electronics and hopefully have a completed and functional device
At the moment the sensorboard is being completed and prepared for testing.

Front frame 3

It’s alive!

Finally I received everything and soldering could start. Being a novice never soldered PCB, I was kind of worried about how this would enfold, especially when looking at the smallest pieces and not being familiar with schematics. But to my surprise things wasn’t Adapterboardas hard as I thought it would be. The tiniest bits actually was not the issue at all, but the larger screen connector on the other hand caused me some headache. The thing is that with some preparations and practice, the proper technique is really not that hard to master. YouTube is a must and I found among others this video very helpful. The right tools is definitely also crucial and my soldering station described in earlier posts surely made the work manageable. The hotIC2_3 air gun saved my @ss on several occasions when rework was needed on the bigger parts with multiple pins (Had to change polarity to IC2 and IC3) . Well back to the screen connector, the pins are extremely small with very little spacing. The first attempt was a complete failure, with bridges, broken leads on the board and slightly off correct position. These problems was not clearly visible trough normal inspection, but it revealed it self when the first test with power connected. The 5 to 3.3 volt regulator (IC1) did not give output and went into thermal protection. After testing for continuity, reading schematics and removing items in reversed order, I was finally left with 2015-03-10 23.19.22the LCD connector. It was removed, and surly the board loaded and all 5v and 3.3v checkpoints passed the test. Luckily We had one connector in spare, so after careful positioning it with just a tiny amount of solder on each end pad, pins was soldered with the smallest amount of solder possible. Even then the continuity test failed 3 times either because of bridges or not contact on one or more pins. Adding more solder to gain contact, easily made another bridge in result. After some rework with solder wick all tests were passed, and it was time to connect the LCD screen. Success!! The screen lit up and after loading the software XCsoar surely came to live. A little trial and error to

2015-03-11 23.25.31 figure out the correct jumper settings, but now everything looks good.

Next up is the sensor board on my part.

The following two images show the key components for this Project, first one is the Cubieboard2 which is purchased as shown.  cubieboard-2Uses Linux as platform. To interface the Cubieboard2 with the screen, touchscreen, sensorboard and RJ45 connectorboard an Adapterboard is required. (Green Board).  This house the respective connections and AdapterboardDC/DC converter needed to operate the system.

THE HOUSING

front frameMy partner in crime on this project – Haldor, is busy making the housing out of aluminum sheets the good old fashion way. Based on the descriptions and his good craftsmanship, I’m confident the electronics will be well taken care of once it is installed in our LS6.  IMG_01431IMG_64421

A 25mm thick aluminum billet is used to mill the front frame for the Flight Computer.  An old-school 3-axis milling machine at work to the rescue!  The front side of the panel is completed and now we will mill from the rear side to open up the actual frame for the screen to rest in.

Thank you to everybody on forum.xcsoar.org for assistance and guidance. Also found this blog http://www.eehmke.de/ very helpful as an addition to the documents from the OV project page. Keep ut the good work!

To be continued 🙂

GILF – Gliders I Like to Fly

Featured

I guess some of you got a little disappointing now….you really don`t care that much about gliders do you? Well some of us do, and this blog is about gliders, old and new ones we probably never will – but would love to fly. So go ahead and post your wet dreams here for all of us other geeks to enjoy 🙂 Oh and if  you are unfamiliar with the acronym GILF, have look her: http://wiki.answers.com/Q/What_is_a_GILF

Ok – so maybe gliding and sailplanes isn´t the most kinky on the net, but if you are a passionate glider pilot, you probably find most gliders as eye candy 😉 There is a lot of 8128_154792272216_643877216_3160133_6903252_nsites out there about gliding and soaring, but the GILF-ide suddenly came up after a good day of flying from our glider port at Notodden, Norway. So here´s what you do. Post or send me your wildest and most kinky glider dreams, use your imagination and give us a wild story of you and your favorite glider.

My favorite? Well I´m a sucker for the “mature” kind and happily married to a LS6a. She knows exactly how to treat an old fart like myself. Years of experience and numerous studs on here conscience, she always get me home in one piece. But that said, I do have a secret fling with a sexy and wild Pilatus B4. She really rocks my world!

Slingsby T.38 Grasshopper

Slingsby Grasshopper
From Wikipedia, the free encyclopedia

The Slingsby T.38 Grasshopper is a British primary training glider built by SlingsbySailplanes for the Royal Air Force

Development
The design is based on the pre-World War II German SG 38 Schulgleiter, modified to use the wing design of the Slingsby T.7 Kirby Cadet glider.[1] The design was cheap to manufacture and was designed to be stored dismantled. The type was used by Air Training Corps Squadrons between 1952 and the late 1980s.

The RAF designated the glider the Grasshopper TX.1 and the first order was for 65 aircraft which were delivered in 1952 and 1953. It was later followed by two further orders for an additional 50 aircraft, the final delivery was made in 1963.

Launch is achieved through the use of a V shaped bungee or elastic rope pulled by a team of helpers. The glider can also be mounted on a pivoting tripod pointed into wind for the demonstration of controls.

The Grasshopper is virtually identical to the EoN Eton.

Siren C.30 Edelweiss

The Siren C.30 Edelweiss (or C.30S) is a 15 m span, Standard Class sailplane designed in France in the early 1960s. The Edelweiss came second in its class at the 1963 World Gliding Championships (WGC) and first in its class two years later. Several are still flying in France and elsewhere in 2010.

This GILF was sent in by my good friend and fellow gliderpilot in my club at Notodden in Norway. Here is his description and why this is one of his wet dreams still after decades of flying and numerous gliders in his logbook:
“My wet dream ? Well, having flown about anything which can glide through the athmosfere, ranging from Scheibe Bergfalke II/55, ASK 8b, K13, Pik3, “all kind of” SchemppHirths, and even Pik 20 and 18 meter aluminium Antonov A-15(!) , and now these days previliged to own my ASH31Mi, my secret wet dream is; Brace your horses….the french Sirên Edelweiss. Serious. Has been a dream since teenage ( secret nr 2; I am now 58..). Butterfly tail, just as my first own glider, the Standard Austria SH1, but much more slender, you more or less strap on the glider as you lay down flat on your back. Cockpit walls touching shoulders, you melt into and become part of her…. niizze, heh ? Beautiful lines, and said to be a delight to control, does not argue a bit on your inputs…. thats’s something! As my old late friend Harald Høymyhr once wrote in FlyNytt, a norwegian flying magazine; give me 30.000 shining norwegian kroner and I know what I would spend the at, just after having flown an Edelweiss back in late 60’es or possibly early -70’ties. (wow..30 K for a factory new top notch competition glider…those were the days..)
OK, GILFS, your draw……
Happy landings
Vidar
( by the way, I am chairman og Sandefjord Gliding club, we operate from Notodden in the mountainous part of Telemark, check Jarles startpage for a link to this may-be best norwegian gliding site for local as well as X/C flying. And our fleet should meet the expectations of most glider friends, wether you want relaxed local gliding, X/C or unlimited aerobatics. Strap on and visit us ladies and gent’s. Welcome!!)”

Schempp-Hirths Arcus M

Start
The first flight was conducted by Schempp-Hirths engineer Swen Lehner and the boss of the SOLO Engine factory Wolfgang Emmerich, in beautiful sunshine and temperatures nearing 30 degrees celcius in the shade. Thanks to the flaps of the Arcus, the aircraft took off after a short roll (approx 200m) and climbed quickly to altitude where the engine was switched off and retracted. The propeller is automatically stopped from spinning via a brake and brought into retract position via sensors without input from the pilot.

New automatic engine controll unit
Powered by the brand new computer controlled direct injection Solo engine, restarting the engine in flight is effortless by simply turning the ignition switch to ON. The new system controls all aspects of the engine ignition phase including extension/ignition and fuel. The amount of fuel mix ratio is controlled by the computer system and is adjusted according to altitude of the aircraft.

Flight Performance
The high wing loading of the Arcus is hardly noticeable, except in glide performance, and the large airbrakes allow for pinpoint accurate landings. The roll out is made much easier through the steerable tail wheel which is integrated in the rudder.

Click her here to see a YouTube clip of the launch

ASH 31 MI

Foto session over Notodden Norway september 8 2012