Notices
RC Pattern Flying Discuss all topics pertaining to RC Pattern Flying in this forum.

F3A Lights

Old 12-06-2013, 04:30 AM
  #1  
Thread Starter
 
najary's Avatar
 
Join Date: May 2003
Location: Ramat Hashrone, ISRAEL
Posts: 1,201
Likes: 0
Received 36 Likes on 32 Posts
Default F3A Lights

Everyone is familiar with the nasty feeling when you fly in a cloudy dark sky or hazy sky.

The model, no matter what colors it was painted, it always looks black and sometimes it is hard to recognize exactly its situation.

Well no more, with these four 8 Watt leds you can recognize exactly what you are doing in the sky.

Even on a sunny day it was proven that it helps to see the wings better in side maneuvers.

It attracts my attention to the wings level and I feel that it improves my flying.

The energy source is the motor battery and it switches on and off from the transmitter.
The all system weights 90 grams and the energy consumption is about 100 M.A. for 8 minutes flight.

Best regards,

Isaac Najary


Attached Thumbnails Click image for larger version

Name:	IMG_0039.jpg
Views:	748
Size:	1.03 MB
ID:	1945171   Click image for larger version

Name:	IMG_0040.jpg
Views:	652
Size:	1.53 MB
ID:	1945172   Click image for larger version

Name:	IMG_0041.jpg
Views:	712
Size:	1.23 MB
ID:	1945173   Click image for larger version

Name:	IMG_0043.jpg
Views:	705
Size:	1.40 MB
ID:	1945174   Click image for larger version

Name:	IMG_0044.jpg
Views:	620
Size:	1.13 MB
ID:	1945175  

Last edited by najary; 12-06-2013 at 11:19 AM.
Old 12-06-2013, 05:19 AM
  #2  
 
AmericanSpectre505's Avatar
 
Join Date: Mar 2007
Location: Fayetteville, NC
Posts: 1,238
Likes: 0
Received 1 Like on 1 Post
Default

Very interesting Isaac.......innovative.

Bill
Old 12-06-2013, 08:33 AM
  #3  
Thread Starter
 
najary's Avatar
 
Join Date: May 2003
Location: Ramat Hashrone, ISRAEL
Posts: 1,201
Likes: 0
Received 36 Likes on 32 Posts
Default

Build Thread

Attached Thumbnails Click image for larger version

Name:	IMG_1052.JPG
Views:	491
Size:	788.8 KB
ID:	1945192   Click image for larger version

Name:	IMG_1054.JPG
Views:	463
Size:	807.8 KB
ID:	1945193   Click image for larger version

Name:	IMG_1055.JPG
Views:	473
Size:	808.5 KB
ID:	1945194   Click image for larger version

Name:	IMG_1056.JPG
Views:	457
Size:	745.8 KB
ID:	1945195   Click image for larger version

Name:	IMG_1057.JPG
Views:	467
Size:	834.7 KB
ID:	1945196   Click image for larger version

Name:	IMG_1060.JPG
Views:	461
Size:	746.1 KB
ID:	1945197   Click image for larger version

Name:	IMG_1061.JPG
Views:	454
Size:	650.7 KB
ID:	1945198   Click image for larger version

Name:	IMG_1062.JPG
Views:	456
Size:	713.2 KB
ID:	1945199  

Click image for larger version

Name:	IMG_1065.JPG
Views:	464
Size:	811.0 KB
ID:	1945200   Click image for larger version

Name:	IMG_1066.JPG
Views:	482
Size:	717.5 KB
ID:	1945201   Click image for larger version

Name:	IMG_1070.JPG
Views:	460
Size:	733.5 KB
ID:	1945202  

Last edited by najary; 12-06-2013 at 08:35 AM.
Old 12-06-2013, 08:39 AM
  #4  
Thread Starter
 
najary's Avatar
 
Join Date: May 2003
Location: Ramat Hashrone, ISRAEL
Posts: 1,201
Likes: 0
Received 36 Likes on 32 Posts
Default

More

Attached Thumbnails Click image for larger version

Name:	IMG_1071.JPG
Views:	425
Size:	926.8 KB
ID:	1945203   Click image for larger version

Name:	IMG_1074.JPG
Views:	429
Size:	639.4 KB
ID:	1945204   Click image for larger version

Name:	IMG_1075.JPG
Views:	424
Size:	727.6 KB
ID:	1945205   Click image for larger version

Name:	IMG_1076.JPG
Views:	419
Size:	729.7 KB
ID:	1945206   Click image for larger version

Name:	IMG_1077.JPG
Views:	399
Size:	544.1 KB
ID:	1945207   Click image for larger version

Name:	IMG_1078.JPG
Views:	402
Size:	798.4 KB
ID:	1945208   Click image for larger version

Name:	IMG_1080.JPG
Views:	380
Size:	833.2 KB
ID:	1945209  
Old 12-06-2013, 08:41 AM
  #5  
Thread Starter
 
najary's Avatar
 
Join Date: May 2003
Location: Ramat Hashrone, ISRAEL
Posts: 1,201
Likes: 0
Received 36 Likes on 32 Posts
Default

More

Attached Thumbnails Click image for larger version

Name:	IMG_1081.JPG
Views:	390
Size:	990.6 KB
ID:	1945210   Click image for larger version

Name:	IMG_1082.JPG
Views:	372
Size:	702.1 KB
ID:	1945211  
Old 12-06-2013, 08:43 AM
  #6  
Thread Starter
 
najary's Avatar
 
Join Date: May 2003
Location: Ramat Hashrone, ISRAEL
Posts: 1,201
Likes: 0
Received 36 Likes on 32 Posts
Default

More

Attached Thumbnails Click image for larger version

Name:	IMG_1084.JPG
Views:	376
Size:	1.03 MB
ID:	1945212   Click image for larger version

Name:	IMG_1085.JPG
Views:	383
Size:	705.4 KB
ID:	1945213   Click image for larger version

Name:	IMG_1086.JPG
Views:	374
Size:	761.8 KB
ID:	1945214   Click image for larger version

Name:	IMG_1087.JPG
Views:	384
Size:	590.4 KB
ID:	1945215   Click image for larger version

Name:	IMG_1088.JPG
Views:	398
Size:	759.5 KB
ID:	1945216   Click image for larger version

Name:	IMG_1089.JPG
Views:	375
Size:	823.6 KB
ID:	1945217   Click image for larger version

Name:	IMG_1090.JPG
Views:	372
Size:	795.2 KB
ID:	1945218   Click image for larger version

Name:	IMG_1091.JPG
Views:	404
Size:	927.5 KB
ID:	1945219  

Click image for larger version

Name:	IMG_1092.JPG
Views:	410
Size:	862.2 KB
ID:	1945222  
Old 12-06-2013, 08:46 AM
  #7  
Thread Starter
 
najary's Avatar
 
Join Date: May 2003
Location: Ramat Hashrone, ISRAEL
Posts: 1,201
Likes: 0
Received 36 Likes on 32 Posts
Default

More

Attached Thumbnails Click image for larger version

Name:	IMG_0005.jpg
Views:	349
Size:	888.0 KB
ID:	1945223   Click image for larger version

Name:	IMG_0006.jpg
Views:	366
Size:	821.0 KB
ID:	1945224   Click image for larger version

Name:	IMG_0002.jpg
Views:	365
Size:	603.9 KB
ID:	1945225   Click image for larger version

Name:	IMG_0001.jpg
Views:	357
Size:	704.8 KB
ID:	1945226   Click image for larger version

Name:	IMG_0003.jpg
Views:	384
Size:	678.4 KB
ID:	1945227   Click image for larger version

Name:	IMG_0004.jpg
Views:	361
Size:	651.6 KB
ID:	1945228   Click image for larger version

Name:	IMG_0007.jpg
Views:	378
Size:	696.7 KB
ID:	1945229  
Old 12-06-2013, 08:52 AM
  #8  
Thread Starter
 
najary's Avatar
 
Join Date: May 2003
Location: Ramat Hashrone, ISRAEL
Posts: 1,201
Likes: 0
Received 36 Likes on 32 Posts
Default

More


Attached Thumbnails Click image for larger version

Name:	IMG_0008.jpg
Views:	370
Size:	717.4 KB
ID:	1945230   Click image for larger version

Name:	IMG_0009.jpg
Views:	407
Size:	786.3 KB
ID:	1945231   Click image for larger version

Name:	IMG_0031.jpg
Views:	389
Size:	1.01 MB
ID:	1945232   Click image for larger version

Name:	IMG_0032.jpg
Views:	368
Size:	896.1 KB
ID:	1945233   Click image for larger version

Name:	IMG_0033.jpg
Views:	369
Size:	643.8 KB
ID:	1945234   Click image for larger version

Name:	IMG_0035.jpg
Views:	375
Size:	628.6 KB
ID:	1945235   Click image for larger version

Name:	IMG_0037.jpg
Views:	376
Size:	686.2 KB
ID:	1945236   Click image for larger version

Name:	IMG_0012.jpg
Views:	367
Size:	754.2 KB
ID:	1945237  

Click image for larger version

Name:	IMG_0018.jpg
Views:	364
Size:	865.7 KB
ID:	1945238   Click image for larger version

Name:	IMG_0022.jpg
Views:	354
Size:	947.1 KB
ID:	1945239  
Old 12-06-2013, 08:53 AM
  #9  
Thread Starter
 
najary's Avatar
 
Join Date: May 2003
Location: Ramat Hashrone, ISRAEL
Posts: 1,201
Likes: 0
Received 36 Likes on 32 Posts
Default

More


Attached Thumbnails Click image for larger version

Name:	IMG_0025.jpg
Views:	476
Size:	832.2 KB
ID:	1945240   Click image for larger version

Name:	IMG_0028.jpg
Views:	473
Size:	745.8 KB
ID:	1945241   Click image for larger version

Name:	IMG_0029.jpg
Views:	458
Size:	780.2 KB
ID:	1945242  
Old 12-06-2013, 04:37 PM
  #10  
 
Join Date: Jan 2005
Location: Columbus, OH
Posts: 784
Likes: 0
Received 0 Likes on 0 Posts
Default

Do you have any links for your equipment? Would the same equipment be suitable for a smaller plane? Maybe something .40-.60 sized?
Old 12-10-2013, 11:00 PM
  #11  
Thread Starter
 
najary's Avatar
 
Join Date: May 2003
Location: Ramat Hashrone, ISRAEL
Posts: 1,201
Likes: 0
Received 36 Likes on 32 Posts
Default

Originally Posted by Trisquire
Do you have any links for your equipment? Would the same equipment be suitable for a smaller plane? Maybe something .40-.60 sized?
Hi,

The leds and the heat sinks on the wings tips were designed and costume made for the Arixtra.

The Power Supply was designed and manufactured by a friend of mine Sorin from YOARDUTECH.

The Power Supply is suitable for any plane using 2S – 10S battery and the Power output voltage is settable with trimmer from steady 0V to 35V.

Best regards,

Isaac Najary

Attached Thumbnails Click image for larger version

Name:	image00.png
Views:	438
Size:	252.6 KB
ID:	1946681  
Attached Files
File Type: pdf
LED driver.pdf (483.2 KB, 90 views)

Last edited by najary; 12-10-2013 at 11:47 PM.
Old 12-11-2013, 09:17 AM
  #12  
My Feedback: (2)
 
Anthony-RCU's Avatar
 
Join Date: Jan 2002
Location: Ossining, NY
Posts: 630
Likes: 0
Received 0 Likes on 0 Posts
Default

Another great idea out of your workshop! Do the heat sinks need to be so big? 90 grams could be a lot for some. I am thinking of built in landing lights.
Old 12-11-2013, 03:43 PM
  #13  
OhD
 
Join Date: Oct 2002
Location: west hills, CA
Posts: 1,160
Received 8 Likes on 5 Posts
Default

I agree, this is a great idea. Seeing the wings is what makes the young guys so good. I'm surprised there hasn't been a more favorable reaction to this idea and the implementation of it. I think the pattern community is asleep or dead.

I'd love to see it in flight, but I guess I'll have to build one first.

Jim O
Old 12-12-2013, 03:32 AM
  #14  
Thread Starter
 
najary's Avatar
 
Join Date: May 2003
Location: Ramat Hashrone, ISRAEL
Posts: 1,201
Likes: 0
Received 36 Likes on 32 Posts
Default

Originally Posted by Anthony-RCU
Another great idea out of your workshop! Do the heat sinks need to be so big? 90 grams could be a lot for some. I am thinking of built in landing lights.

The led heat sinks weigh 25 gram (12.5X2), they have to be that big because the leds get very hot and you need a lot of cooling area so they will not burn.

To avoid them from burning I cannot turn the lights on the ground more than 30 seconds.

The heat sink of the Rc Controller Power Supply unit is very small 9mm X 9mm and weighs only about 3 gram.

Best regards,

Isaac Najary


Attached Thumbnails Click image for larger version

Name:	IMG_1055.JPG
Views:	346
Size:	808.5 KB
ID:	1946961  
Old 12-12-2013, 06:07 AM
  #15  
 
Join Date: Jan 2005
Location: Columbus, OH
Posts: 784
Likes: 0
Received 0 Likes on 0 Posts
Default

Thanks Isaac.
Old 12-12-2013, 12:40 PM
  #16  
OhD
 
Join Date: Oct 2002
Location: west hills, CA
Posts: 1,160
Received 8 Likes on 5 Posts
Default

Originally Posted by najary
The led heat sinks weigh 25 gram (12.5X2), they have to be that big because the leds get very hot and you need a lot of cooling area so they will not burn.

To avoid them from burning I cannot turn the lights on the ground more than 30 seconds.

The heat sink of the Rc Controller Power Supply unit is very small 9mm X 9mm and weighs only about 3 gram.

Best regards,

Isaac Najary


Isacc, is it possible to pulse the LEDs to reduce the power consumption and heat load? Something like 50% duty cycle at one or two Hertz?

Does the LED driver circuit reduce power automatically at a critical temperature?

Jim O
Old 12-14-2013, 03:57 PM
  #17  
Junior Member
 
Join Date: Mar 2013
Location: , ISRAEL
Posts: 1
Likes: 0
Received 0 Likes on 0 Posts
Default

Pulsing the LED at 50% is a bad idea because it produces a great EMI noise that can perturb your receiver so it can be a great danger. Beside this the LED don't get to critical temperature because during flight you have a great cooling system with the air that pass your plane. And even you landed you have at least 1 min to reach a dangerous temperature of the LED so plenty of time to turn it OFF. Anyway all this parameters depends with the power you apply to the LED and the size of the heat-sink of the LED and you can test all these on your lab. You can simulate the cooling of the air with a blower or a fan. Isaac did all this tests so he knows exactly that during flight is no problem of overheat and at landing he has couple of tens of seconds to turn it OFF without any danger of overheating. Also the power supply of the LEDs has integrated a auto-reset fuse which will cut the current in case of passing 1.7A of current consumption. So in case of possible broke of the LED most probably the current will climb up and at the end the fuse will disconnect the power supply.

Any other question regarding electronics of this project you can ask on this forum or using my direct email [email protected] or [email protected]
Thank you for your interest
Sorin
YOARDUTECH
Old 12-02-2014, 02:12 PM
  #18  
Thread Starter
 
najary's Avatar
 
Join Date: May 2003
Location: Ramat Hashrone, ISRAEL
Posts: 1,201
Likes: 0
Received 36 Likes on 32 Posts
Default

New video

https://www.youtube.com/watch?v=8zVICcyqkKc

Last edited by najary; 12-02-2014 at 02:43 PM.

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are On


Thread Tools
Search this Thread

Contact Us - Manage Preferences Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.