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Archived Stuff from the website
For the truly technical among us
Prof. Michael Selig and his people at the University of Illinois have tested some of the very small props used in indoor flying in wind tunnels.
This is anorak stuff but I am pretty sure it is unique. They include a bunch of the GWS props, Micro Invent and even a Vapor prop!
You won’t find wind tunnel data for a1.85 inch prop anywhere else I am absolutely sure!
The link to the report is here.
This is anorak stuff but I am pretty sure it is unique. They include a bunch of the GWS props, Micro Invent and even a Vapor prop!
You won’t find wind tunnel data for a1.85 inch prop anywhere else I am absolutely sure!
The link to the report is here.
Sad news
Stefan Gasparin, the incredibly talented Czech designer and manufacturer of tiny CO2 powered motors passed away 24 October 2015. Anyone who has seen (or owned!) a Gasparin motor will know what jewels they are.
http://www.rcgroups.com/forums/showthread.php?t=2528309#post33024286
Stefan Gasparin, the incredibly talented Czech designer and manufacturer of tiny CO2 powered motors passed away 24 October 2015. Anyone who has seen (or owned!) a Gasparin motor will know what jewels they are.
http://www.rcgroups.com/forums/showthread.php?t=2528309#post33024286
This is his 18 cylinder radial currently in the Museum of Miniature Engineering.
His smallest commercial motor, the G 2.6 weighed just 1 g.
http://gasparin.cz/page.php?page=co2/products/gmotors/product_info&lng=en&type=G2,6
His smallest commercial motor, the G 2.6 weighed just 1 g.
http://gasparin.cz/page.php?page=co2/products/gmotors/product_info&lng=en&type=G2,6
THE FRIDAY 13TH FUN AND FESTIVITIES CONTEST REPORT
By Colin Smith
What can I say .....not much really, except that I got the distinct impression that those who turned up and took part seemed to enjoy themselves, I know I did. I have to admit that it was my first as comp organiser and I learned a lot which I can hopefully pass on to others to improve our general flying standards and organised comps and most importantly keep the fun factor high.
The simple ‘Figure of Eight’ course was set up using long poles through the basketball hoops as turn markers....one at each end and a centre one using 5 helium filled balloons anchored to the ground and about 10ft (3metres) high..... the same as the BB rings. As a last minute idea Christmas decorations were draped around the poles. Easy Peasy, simple to set up and plenty of space to fly round. BUT in hindsight the poles were virtually invisible from a distance especially against the drab court walls even with their decorations. How’s that for an excuse for clobbering them fellas?. Helium filled latex ballons should not be stored in a cold car overnight due to the fact that they deflate and loose their buoyancy. Consequently we had a 3ft high mid point marker instead of a 12ft high one....Oh, well twas the same for everybody. The end walls were specifically designed to stop model planes from venturing outside and did their job admirably. Ok, so they jumped out on a few models that assaulted them.... The models started it !!!!!..... The walls won ! Guiders were free to walk where necessary to ensure visual clarity.
That deals with the course layout and I split the flying machines into 4 groups dependant on the type of machine and how many waggly bits they had hanging off them which dictated how they flew....seemed logical to me. Knowing that we all fly anti-clockwise circuits at both venues I decided to throw in a wobbly one and went for a clockwise rotation.....again it seemed logical....didn't want to make it tooooooooo easy. Likewise the most of us fly Embers so they were to be timed for their slowest speed and Vapors for their fastest run. Scaleys also had their operating speeds reversed to slow speed to test the guiders skill in balancing throttle and elevator.
As it turned out “completion curse” got the lot of us and fingers turned to thumbs, legs to jelly, eyes met in the middle or got crossed up and basically we did not fly as well we thought we could. Happens to us all but as it was a fun comp it didn't really matter. Course modifications were enacted as we went along and flying continued with a wandering caller for each guider as needed, good idea from Martin Hopper. The stopwatch endured cataclysmic variations and was eventually pensioned off with utter exhaustion. The Fun factor returned after tea break and those who competed seemed to enjoy it. Various design flaws were found in certain machines, that are manufactured to a price, came to light and hopefully repaired or modified. But the most important point concerned the sheep station, that was the main prize, didn't make it to the venue in time and so the prizes I had got will remain in safe custody until the next lot of carnage happens.
A big THANKS to all those who turned up and participated, especially those who helped me set up and also modify whatever as needed as the day progressed...see you next time for more fun .
There are some photos of the day here.
What can I say .....not much really, except that I got the distinct impression that those who turned up and took part seemed to enjoy themselves, I know I did. I have to admit that it was my first as comp organiser and I learned a lot which I can hopefully pass on to others to improve our general flying standards and organised comps and most importantly keep the fun factor high.
The simple ‘Figure of Eight’ course was set up using long poles through the basketball hoops as turn markers....one at each end and a centre one using 5 helium filled balloons anchored to the ground and about 10ft (3metres) high..... the same as the BB rings. As a last minute idea Christmas decorations were draped around the poles. Easy Peasy, simple to set up and plenty of space to fly round. BUT in hindsight the poles were virtually invisible from a distance especially against the drab court walls even with their decorations. How’s that for an excuse for clobbering them fellas?. Helium filled latex ballons should not be stored in a cold car overnight due to the fact that they deflate and loose their buoyancy. Consequently we had a 3ft high mid point marker instead of a 12ft high one....Oh, well twas the same for everybody. The end walls were specifically designed to stop model planes from venturing outside and did their job admirably. Ok, so they jumped out on a few models that assaulted them.... The models started it !!!!!..... The walls won ! Guiders were free to walk where necessary to ensure visual clarity.
That deals with the course layout and I split the flying machines into 4 groups dependant on the type of machine and how many waggly bits they had hanging off them which dictated how they flew....seemed logical to me. Knowing that we all fly anti-clockwise circuits at both venues I decided to throw in a wobbly one and went for a clockwise rotation.....again it seemed logical....didn't want to make it tooooooooo easy. Likewise the most of us fly Embers so they were to be timed for their slowest speed and Vapors for their fastest run. Scaleys also had their operating speeds reversed to slow speed to test the guiders skill in balancing throttle and elevator.
As it turned out “completion curse” got the lot of us and fingers turned to thumbs, legs to jelly, eyes met in the middle or got crossed up and basically we did not fly as well we thought we could. Happens to us all but as it was a fun comp it didn't really matter. Course modifications were enacted as we went along and flying continued with a wandering caller for each guider as needed, good idea from Martin Hopper. The stopwatch endured cataclysmic variations and was eventually pensioned off with utter exhaustion. The Fun factor returned after tea break and those who competed seemed to enjoy it. Various design flaws were found in certain machines, that are manufactured to a price, came to light and hopefully repaired or modified. But the most important point concerned the sheep station, that was the main prize, didn't make it to the venue in time and so the prizes I had got will remain in safe custody until the next lot of carnage happens.
A big THANKS to all those who turned up and participated, especially those who helped me set up and also modify whatever as needed as the day progressed...see you next time for more fun .
There are some photos of the day here.
******************************************************************************
nicely done - Joe Malinchak's 1/72 scale 20mm EDF T 33
Joe is an extremely well known indoor modeller from the US. The thread on this new model is here:
http://www.rcgroups.com/forums/showthread.php?t=2503281#post32710217
http://www.rcgroups.com/forums/showthread.php?t=2503281#post32710217
THE AMAZING JOE MALINCHAK DOES IT AGAIN!
If you think Joe's 1/72 scale T33 is impressive how about a 1.5" wingspan radio controlled electric cartoon-scale Fokker TriPlane? The thread is here.
Ever wondered where the Vapor/NightVapor/MiniVapor design originated?
Here's the original version, called the Stubenfliege or "Housefly"
http://www.braunmod.de/eproduktb.htm
Here's the original version, called the Stubenfliege or "Housefly"
http://www.braunmod.de/eproduktb.htm
