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« Reply #25 on: May 15, 2014, 10:57:04 AM »
ahmedt
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W Clap W !!
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« Reply #26 on: May 15, 2014, 12:37:06 PM »
manojswizera
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Great efforts put sir.
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« Reply #27 on: May 15, 2014, 03:51:35 PM »
ashok baijal
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This is a real GLIDER. Great  Bow  Thumbs Up  Hats Off  Salute  Clap
 5ft to 60mtrs. .... what is the glide ratio? Try launching it from a 20 storey building. RC will be a real requirement otherwise it will cover 60*20*(10/5) =2400mtrs
Think seriously of settling down in Bangalore. I am inviting you again. How long do you plan to be in Indore?
« Last Edit: May 15, 2014, 04:03:45 PM by ashok baijal » Logged
 

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« Reply #28 on: May 15, 2014, 04:14:59 PM »
sundaram
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Wow!!!! That's some glide Iyer Sir,  seemed like forever. Did it land finally? could not see it in the video clearly.  Grin

Nice build.  Thumbs Up Thumbs Up  Clap Clap
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« Reply #29 on: May 18, 2014, 08:22:51 PM »
K K Iyer
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Thanks Sanjay sir, Sandy sir, Ashok, Ahmed, Manoj, Anjan.

Wind dropped today after many weeks. Time to check out tow launch of my RCTLG.
Short (25m) line, almost nil wind.

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« Reply #30 on: May 19, 2014, 08:35:39 PM »
K K Iyer
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First tow by Ahmed, launch by Harveer.
All went well till base leg. Hit pole as i was afraid of over control.
Surprised at lack of damage. Not even a ding!
Never knew that 0.75oz glass adds such strength. 40% wt penalty forgiven...
(Intake of breath is by RC Aunt...)
« Last Edit: May 19, 2014, 08:48:14 PM by K K Iyer » Logged
 

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« Reply #31 on: May 19, 2014, 10:19:34 PM »
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Wow! Just WOW!  Clap

P.S: All your videos are @240p max Sad

 
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« Reply #32 on: May 19, 2014, 10:45:12 PM »
K K Iyer
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Thanks Sidewinder
Can you believe that the iPad camera is one mega pixel?
RC Aunt uses it because it is easy.
Maybe she should use my Samsung phone, whose camera is 8mp.
All this while we've been using low resolution to reduce upload size.
Hope next sunday pics/videos are higher resolution.
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« Reply #33 on: May 19, 2014, 10:53:04 PM »
K K Iyer
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What happens when you try to discus launch a high aspect ratio rc towline glider...

http://m.youtube.com/watch?feature=youtube_gdata_player&v=0tI2lGnxYqQ
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« Reply #34 on: May 19, 2014, 11:06:07 PM »
K K Iyer
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A soft nose helps, especially when backed up by glass cloth!

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Re: Sweepstakes - RCTLG - K K Iyer
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« Reply #35 on: May 20, 2014, 10:57:15 AM »
sanjayrai55
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 Clap Clap Clap

Really very good sir  Hats Off Hats Off
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« Reply #36 on: May 20, 2014, 02:14:26 PM »
wingmanbunty
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very good glide never seen such glide before  Salute

wing finish is woow
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EAT ,SLEEP , FLY
 

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« Reply #37 on: June 08, 2014, 09:33:36 PM »
K K Iyer
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No news on Sweepstakes.
Continuing experiments.
Desi Jugaad HiStart
First in India?

http://m.youtube.com/watch?feature=youtube_gdata_player&v=KCUOcwIxKxE

www.youtube.com/watch?feature=youtube_gdata_player&v=KCUOcwIxKxE
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« Reply #38 on: June 09, 2014, 10:43:55 AM »
ashok baijal
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Good that you built one. You have been longing to have one for quite some time.

Your clarifications on
Type of rubber tubing used
Length of rubber tubing,
length of string,
rubber tubing pulled by what extent,
approx height gained by the glider,
do you put a stake at one end or someone holds the end.

This would help others in replicating a histart.

Next you should experiment on launching the glider using a winch. You can use a glow engine starter for the winch motor. A few pullies and you should have a winch working.
« Last Edit: June 09, 2014, 04:38:32 PM by ashok baijal » Logged
 

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« Reply #39 on: June 09, 2014, 05:51:42 PM »
sanjayrai55
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Did it over 40 years ago on a Yellow Bird  >Cheesy >Cheesy Grin
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« Reply #40 on: June 09, 2014, 05:53:49 PM »
sanjayrai55
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Used about 3 feet length, of which 1 foot was surgical rubber tubing. It was tied to  a wooden post. but if we used to much pull, it would go crazy Wink
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« Reply #41 on: June 09, 2014, 06:31:43 PM »
K K Iyer
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@sanjayrai55 sir,
Not RC, hence doesn't count. Grin haha, Gotcha >Cheesy
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« Reply #42 on: June 09, 2014, 06:50:10 PM »
K K Iyer
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Crazy launch.
Result of release without wings level. Got a real shock!

http://m.youtube.com/watch?feature=youtube_gdata_player&v=glLQMmUoIk8

www.youtube.com/watch?feature=youtube_gdata_player&v=glLQMmUoIk8
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« Reply #43 on: June 09, 2014, 06:56:39 PM »
sanjayrai55
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Iyer sir; 40+ years ago the Radio Sets were single Channel, and had wires and valves not transistors and ICs Cheesy
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« Reply #44 on: June 09, 2014, 07:26:49 PM »
K K Iyer
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Sir,
Just joking. No offense meant.
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« Reply #45 on: June 09, 2014, 07:55:33 PM »
sanjayrai55
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None expected. None accepted. None taken. None given.

 Grin Grin Grin

Iyer Sir, your build skills and knowledge levels are extraordinary  Hats Off
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« Reply #46 on: June 09, 2014, 08:34:06 PM »
K K Iyer
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@sanjayrai55 sir,
This reminds me of an incident in about 1970.
We were flying in the Polo Ground near President's Estate, which was for the use of the President's Bodyguard.
One immaculate Bodyguard on a horse taller than me turned up to investigate.
He rode up to me and asked with ultimate politeness:
'Aapki tareef?' (Instead of 'Who the hell are you')
Fortunately I had enough Urdu for an appropriate reply:
'Kaash ki hum tareef layak hote...'
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« Reply #47 on: June 09, 2014, 08:38:18 PM »
sanjayrai55
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You were lucky!

In circa 1986, we guys were flying there, and this giant Sardar Cop comes along, says "Tvada Boss kithe?" and I was shoved in front  Shocked Shocked

He gave us 5 minutes to get out of there! This of course was after Mrs. Gandhi's assassination!  Roll Eyes Roll Eyes
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« Reply #48 on: June 09, 2014, 09:14:24 PM »
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None expected. None accepted. None taken. None given.


what a talk
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« Reply #49 on: June 10, 2014, 09:32:32 PM »
K K Iyer
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Your clarifications on
Type of rubber tubing used. latex (catheter) tube 3/16" od, approx 1/8" id
Length of rubber tubing, 15 pieces of 3ft each, reef knotted
length of string, 180ft braided polyester line, like twine
rubber tubing pulled by what extent, 2x
approx height gained by the glider, guess 250ft/sqrt2, say 150-180ft. Since avg 60 sec, indicates sink rate of 2.5-3ft/sec (higher than i expected)
do you put a stake at one end or someone holds the end. one foot long screwdriver stuck in the ground

Hope this is of use to other experimenters. Please note I was using under 1kg tension, as my RCTLG weighs only 200gms.
Edit:
Since RCTLG was barely moving forward in level flight into wind, and the theoretical stall speed is about 5m/s, i estimate that the wind was about 15kmph during the videos.
« Last Edit: June 10, 2014, 10:04:31 PM by K K Iyer » Logged
 

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