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phil alvirez's blog
Archive for July, 2011
Posted by phil alvirez | Jul 23, 2011 @ 12:58 PM | 5,622 Views
new videos! finally i was able to get my son to video my planes at the park nearby on a wind-less day when he was on holiday. take-offs, landing at the road. now with more flights, some catches, too.
Here is the link
http://www.rcgroups.com/forums/showt...1#post18841793
and this: http://www.rcgroups.com/forums/showthread.php?t=1500486
or find them all at my attachments.
The Videos have been updated and now all of them work.
now there are more that include the 2 canards, and some takes with my grand daughter, who is very much interested in this hobby, too.
Posted by phil alvirez | Jul 21, 2011 @ 08:24 AM | 6,240 Views
as there is not much to talk about r/c models at this time, i will tell you about my life; all those things that shaped what am now.
1-flying before driving
i have to tell you that i began flying before driving. that is, flying a full size airplane before i drove a car.
in those days i was a student at the university, and a friend talked me to taking flying lessons. at the flight school they had piper cub j3's, and we had to fill-in the tank, and start the prop by hand. fun! we arrived at 6am because, as we were at 7,000ft altitude, the poor things could not climb much afterwards, when the temperature rised. the instructor was a very professional fellow, but very short, so he had to add 2 cushions to the seat so he could see above the instruments cluster, that did not have many instruments, by the way. no gas gauge-just the lenght of a rod told us how much fuel was left. he sat at the front seat. i had told him that i was a student of aeronautical engineering at the university but had never flown before. at the runway we had to wait until the control tower had a green light (no radio, sir) so we were cleared for take-off, and he took-off and we climbed to cruise after a long struggle, when we began to do figure 8's and coordinate the turns with the turn and bank indicator, and so on. i had to overcome sea sickness and the horror of heights (called acrofobia), as i never flew before, but eventually things got under control. then he told me to throttle back and start a...Continue Reading
Posted by phil alvirez | Jul 07, 2011 @ 09:40 AM | 6,459 Views
"fragile beyond description", is the way H. G. Wells describes the inhabitants of the surface in year 802,701 on his book "the time machine", and it fits the duration models flown free flight indoors.
1.-i was always fascinated by all that was published on these models, but it was until in 1992 a fellow modeler invited me to watch them flying in a gym, that i had the chance to see them in real life. i still could not imagine what they could do in a gym. all that i read was done in huge dirigible hangars, but eventually i went.
they were flying peanut scale models, stick and tissue, and they were fast and sometimes bouncing on the walls and ceiling and falling pathetically to the floor, so i was not impressed. then, a fellow began flying a penny plane. those are 18" span and weigh 3.1 grams, and are covered with clear vinyl. that was better! slow and flying longer, and rarely hitting the walls. but then, another guy opened a shoe box and pulled a tiny 7" plane of the cathegory called 'mini-stick', wound a tiny rubber band (they call them 'motors') and launched it for a 1-1/2 minute flight. it flew so slow, and the prop, you could count the turns! i was hooked. it took me 1 year to learn all about where to get the specialized stuff, and how to deal with such fragile things without breaking anything, but eventually i began to fly my planes-in my living room!
the thing is that there are very detailed rules for these minis, and they perform beyond...Continue Reading
Posted by phil alvirez | Jul 01, 2011 @ 08:37 AM | 6,310 Views
when i began flying my stick-n-tissue planes like the talisman/pushini/tramontano/aurora, someone said that they looked as if from another dimension, as being smaller than the rest, they still performed well, as small planes are poor performers. the explanation is in the work of Schmitz, detailed somewhere below, and at the time i thought that there was nothing beyond: it was the end of the line. nothing smaller or slower rc could fly outdoors. yes, there are smaller rc indoors: i designed several for the plantraco system; 1 of them weighed 4.7 grams, 10 inches wingspan, and i flew it indoors and enjoyed it a lot. but then i watched a sukhoi from horizon indoors and decided to use its avionics on my designs. the result: the Elf series-and related. i tried them indoors and then outdoors in calm weather, and have enjoyed them more than anything that i ever built.
since i got carried away with these 'paper' planes (1mm foam), i did not fly any of my stick and tissue. that is, until today, when i brought with me some of the paper planes and some stick and tissue. after flying the little ones i tried the balsa planes, and i could not believe my eyes! before, i considered my balsa planes the slowest a plane can fly, compared to any other plane, but when i compared them with the little foamies, i realized that, indeed, there is still another dimension. i have been designing all these planes for calm weather, as it is the way i enjoy flying my planes, but was not until i had the chance to watch them flying with the balsa ones, 1 after another, that i was able to see the big difference.
if you build and fly a plane like mine to weight, using the same components, and fly it in calm weather, you will see what i mean. it's impossible to imagine that. so slow, so relaxed, so quiet. and then, catching them! you just reach and gently grab them, all in slow motion (by the way, in case you wonder, i grab them by the landing gear).