Denis' Colditz Cock had its second outing today.
Web log for the Johannesburg Model Aircraft Club (JOMAC), showing the day to day activities of the club. Members' contributions welcome.
Showing posts with label gliding. Show all posts
Showing posts with label gliding. Show all posts
Sunday, June 23, 2013
Sunday, March 24, 2013
Sunday, February 3, 2013
Sunday, April 8, 2012
Sunday, February 12, 2012
Sunday, January 29, 2012
Sunday, November 6, 2011
Flemming's electric glider now has an on-board variometer. Well, more than just a variometer. It's combined with a GPS device. It measures, records and transmits not only the rise and fall of the aircraft but also speed, height, location -- the Full Monty.
The feedback to the pilot is by a rising and falling tone punctuated every now and then by a businesslike female voice giving height above ground.
The tube attached to the fin is a Total Energy Sensor. This allows the device to integrate the kinetic and potential energy of the aircraft. In theory, if the aircraft loops, exchanging speed with height around the loop, the device will give out a constant tone. And so it does. I've seen it with my own eyes, and heard it with my own ears.
Remarkable.
Sunday, October 9, 2011
Saturday, September 17, 2011
Sunday, September 4, 2011
Sunday, July 24, 2011
Sunday, July 10, 2011
I lost my glider at the field today. I'd just come off the top of a bungee launch when I was dazzled by the sun and lost sight of it. I never saw it again. It was at about 50 M over the car park heading East into the wind.
With the help of several other JOMAC members, and many thanks to them all, I searched all around, but no luck.
If you came across a 2,5 M glider, with a V tail and yellow and black wings, give me a shout. It may be mine.
With the help of several other JOMAC members, and many thanks to them all, I searched all around, but no luck.
If you came across a 2,5 M glider, with a V tail and yellow and black wings, give me a shout. It may be mine.
Sunday, June 26, 2011
Vintage Aircraft Fly In number 249
The morning was very cold and windy and the wise Old Timers stayed at home. Only the daft ones, that is to say me and Ted, went out to JOMAC. This was a pity as by 1100 the weather was pleasant.
Then, Francois' new 5 metre Thermik XL had its first flight.
Here's a short clip...
Then, Francois' new 5 metre Thermik XL had its first flight.
Here's a short clip...
Sunday, June 12, 2011
Large Scale Glider Fly In at Warthog Radio Flyers
The usual brigade represented JOMAC -- Francois, Howard, Mike, Ken, Adrian and Stuart with his super tug. This was just as well as Chris Adrian's tug met with misfortune.
Here's Chris' tug.
Mike May's 8M DG 505
Mike's 4M Nimbus just after take off.
I'm not sure whose this strange machine is.
Sunday, April 3, 2011
Sunday, March 6, 2011
AGM 2011
The committee from last year was re-elected unopposed. See rouges gallery in the links at the right of the page.
On another matter entirely, I was today wearing braces with a Union Jack pattern. This lead to several scornful remarks about the cricket. Perhaps people spoke too soon -- ha ha.
On another matter entirely, I was today wearing braces with a Union Jack pattern. This lead to several scornful remarks about the cricket. Perhaps people spoke too soon -- ha ha.
Here's a clip of Donovan's Wilga tug in action.
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