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Search: Posts Made By: Dave
Showing results 1 to 25 of 53
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Forum: RC Pattern Flying
04-28-2014, 08:53 PM
Replies: 89
Views: 11,451
Posted By Dave

http://www.rcuniverse.com/forum/attachment.php?att...

http://www.rcuniverse.com/forum/attachment.php?attachmentid=1990962http://www.rcuniverse.com/forum/attachment.php?attachmentid=1990963http://www.rcuniverse.com/forum/attachment.php?attachmentid=199096...
Forum: RC Pattern Flying
04-28-2014, 08:19 PM
Replies: 89
Views: 11,451
Posted By Dave

http://www.rcuniverse.com/forum/attachment.php?att...

http://www.rcuniverse.com/forum/attachment.php?attachmentid=1990933http://www.rcuniverse.com/forum/attachment.php?attachmentid=1990934http://www.rcuniverse.com/forum/attachment.php?attachmentid=199093...
Forum: Beginners
04-23-2014, 07:37 PM
Replies: 98
Views: 8,851
Posted By Dave

To: DIRTYBIRD 2.4GHz wavelength has much higher...

To: DIRTYBIRD
2.4GHz wavelength has much higher incurred losses than 72MHz wavelength.
Therefore, when it comes to range, the 100mW RF output on 2.4GHz radio is
no match to a 750mW RF output on...
Forum: RC Radios, Transmitters, Receivers, Servos, gyros
12-20-2013, 09:47 AM
Replies: 75
Views: 5,956
Posted By Dave

2.4 GHz wavelength has much higher incurred...

2.4 GHz wavelength has much higher incurred losses then 72MHz wavelength.
Therefore, when it comes to range, the 100mW RF output on 2.4 GHz radio is no match
to a 750mW RF output on 72MHz radio....
Forum: RC Radios, Transmitters, Receivers, Servos, gyros
10-29-2013, 10:07 PM
Replies: 260
Views: 58,233
Posted By Dave

The propagation characteristics of 2.4GHz...

The propagation characteristics of 2.4GHz wavelength and the environmental effects of this frequency are far more complex than the propagation on 72MHz band.
We moved up from the broadcasting region...
Forum: RC Radios, Transmitters, Receivers, Servos, gyros
10-28-2013, 06:38 PM
Replies: 260
Views: 58,233
Posted By Dave

DSMX Video Let's not forget the DSM...

DSMX Video

Let's not forget the DSM advertisement: "DSM is the 2.4GHz technology that's here to stay and one to beat"
The DSMX video is a clever cover-up for DSM fiasco. Turning on 100...
Forum: RC Radios, Transmitters, Receivers, Servos, gyros
10-27-2013, 09:38 AM
Replies: 260
Views: 58,233
Posted By Dave

To Rob 2160 Your "extensive personal range...

To Rob 2160

Your "extensive personal range checks" on 2.4GHz radios are meaningless since 2.4GHz wavelength is in the microwave region on the electromagnetic wave spectrum.
Therefore, it behaves...
Forum: RC Jets
08-27-2013, 08:58 PM
Replies: 93
Views: 19,532
Posted By Dave

Technically no RC jet scale model today can match...

Technically no RC jet scale model today can match Vitaly's Yak 130.
I suspect that politics are involved here.
The Russian team should pull out from WJM !
Forum: RC Jets
10-28-2012, 03:57 PM
Replies: 16
Views: 2,596
Posted By Dave

RE: The 'first'..was in 1983

https://attachments.postoffice.net/tpl/Attachment/123INEXAB/File0001.jpg?FileName=File0001.jpg&Q=556qJbXoZ1408M101D&O=2046&ContentLength=1241718&DownloadID=6c02655f138844d293f3ce18a8c227a5...
Forum: RC Jets
10-28-2012, 03:31 PM
Replies: 16
Views: 2,596
Posted By Dave

RE: The 'first'..was in 1983

https://attachments.postoffice.net/tpl/Attachment/123ZTJGEZ/File0001.jpg?FileName=File0001.jpg&Q=556qJbXoZ1408M101D&O=2046&ContentLength=1241718&DownloadID=59f3e4b739e6392a52760a3570fb8ca6...
Forum: RC Jets
10-28-2012, 03:18 PM
Replies: 16
Views: 2,596
Posted By Dave

RE: The 'first'..was in 1983

https://attachments.postoffice.net/tpl/Attachment/123ALHUVF/File0001.jpg?FileName=File0001.jpg&Q=556qJbXoZ1408M101D&O=2046&ContentLength=1241718&DownloadID=9a0b8922dfa1ac450dd83c7c2036cd6c...
Forum: RC Radios, Transmitters, Receivers, Servos, gyros
10-27-2012, 07:06 PM
Replies: 202
Views: 17,767
Posted By Dave

RE: Dx8 to futaba?

You are absolutely right!
Forum: RC Radios, Transmitters, Receivers, Servos, gyros
10-27-2012, 12:53 PM
Replies: 202
Views: 17,767
Posted By Dave

RE: Dx8 to futaba?

To SigMan:

When the band is saturated, error occurs. The industry calls it "brownout" and cleverly blames it on the battery pack!
It is too bad that we can not reboot a crashed model airplane.
Forum: RC Jets
10-19-2012, 02:54 PM
Replies: 108
Views: 13,365
Posted By Dave

RE: Cons for installing redundant receiver batteries ?

Running two battery packs in parallel is a bad idea since their voltage is not identical. Therefore, they oppose each other constantly as one voltage bucking another. This is called buck voltage. The...
Forum: Kit Building
09-20-2012, 03:26 PM
Replies: 1,335
Views: 209,941
Posted By Dave

RE: Goldberg Tiger Club

Reply to jkr_1100 post #197:

Thank you for your reply. Yes, I am going to build a new .40 Tiger 2. Recently, I purchased a KIT from Tower.
</p>
Forum: Kit Building
09-20-2012, 12:38 PM
Replies: 1,335
Views: 209,941
Posted By Dave

RE: Goldberg Tiger Club

I was very lucky with my Tiger 40. I had it for over nineteen years. This model survived four students. My Tiger suffered from
aileron flutter until I cut the ailerons to 1.25 inches constant cord....
Forum: RC Radios, Transmitters, Receivers, Servos, gyros
08-04-2012, 06:41 AM
Replies: 32
Views: 5,631
Posted By Dave

RE: Transmitter Resolution - What Does It Mean?

Nobody can differentiate between 1024 or 2048 resolution since the RC pilot has a painfully slow 200 millisecond latency.
Forum: RC Radios, Transmitters, Receivers, Servos, gyros
07-20-2012, 08:18 AM
Replies: 99
Views: 16,884
Posted By Dave

RE: 72 mhz still ok?

When you fly on 2.4GHz, there are millions of 2.4GHz users turning on on you everywhere.
Forum: RC Radios, Transmitters, Receivers, Servos, gyros
07-19-2012, 08:30 PM
Replies: 99
Views: 16,884
Posted By Dave

RE: 72 mhz still ok?

The 72 MHz now is better than ever!
Forum: Batteries & Chargers
07-08-2012, 07:32 AM
Replies: 61
Views: 7,213
Posted By Dave

RE: Why are we using NiMh...really?

Rechargeable batteries are rated by energy density, which is specified by Watt-hours per kilogram.

The energy density for NiCd cell is rated at 45 Wh/Kg.

The energy density for NiMh cell is...
Forum: Extreme Speed Prop Planes
06-17-2012, 09:30 AM
Replies: 135
Views: 8,985
Posted By Dave

RE: o,s, 32 max

I fly a SIG WONDER with an OS .32SX engine .APC 8x6 propeller 110 + MPH .
Forum: RC Radios, Transmitters, Receivers, Servos, gyros
06-15-2012, 03:06 PM
Replies: 136
Views: 28,654
Posted By Dave

RE: Dx8 still has problems

The bottom line is that glitch-free software,error-free computers,and an interference-free radio link is only an ILLUSION .
Forum: Extreme Speed Prop Planes
06-02-2012, 05:13 PM
Replies: 35
Views: 3,176
Posted By Dave

RE: i want speed plane

FOX MK-II

WWW.RCMPLANS.COM

PLAN # 1338 (sport)

OS .35 AX ENGINE 100+ MPH
Forum: Extreme Speed Prop Planes
03-03-2012, 12:45 PM
Replies: 45
Views: 3,964
Posted By Dave

RE: First

Modified SIG WONDER is powered by an OS .32SX engine. Also OS .35AX engine with APC 8x6 prop works.
Model weighs 2 pounds, 12 ounces. 110+ MPH....
Forum: Glow Engines
11-21-2011, 07:27 AM
Replies: 62
Views: 20,470
Posted By Dave

RE: Club MVVS

During the "Cold War" I sold many MVVS engines that I obtained from my brother who lived
in the former Czechoslovakia.  I sold over one hundred MVVS engines despite the fact
that I informed all the...
Showing results 1 to 25 of 53
 
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