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Old Aug 14, 2011, 10:27 AM
Ginger or MaryAnn ??
fh64_lucky's Avatar
United States, TX, Garland
Joined May 2005
3,342 Posts
When you have time,could you try to pull doppler of this.There may ne one or 2 decent passes.Diamond Dust convertion...Thanks Don!Joe Dont know why,but lately,posting a video from youtube is choppy here,you have to click on "youtube"at bottom of video that takes you right to the page and its smooth...
Diamond Dust.MOV (3 min 38 sec)
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Old Aug 14, 2011, 11:15 AM
Wonderfully Wicked
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Willoughby, Ohio
Joined Jan 2002
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Quote:
Originally Posted by corsair nut View Post
84 deg.

i think its the second video..

rpm would be nice to know, 5 blades

thanks don!!!
151 mph, rpm= 34566
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Old Aug 14, 2011, 11:18 AM
Wonderfully Wicked
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Willoughby, Ohio
Joined Jan 2002
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Quote:
Originally Posted by fh64_lucky View Post
When you have time,could you try to pull doppler of this.There may ne one or 2 decent passes.Diamond Dust convertion...Thanks Don!Joe Dont know why,but lately,posting a video from youtube is choppy here,you have to click on "youtube"at bottom of video that takes you right to the page and its smooth...
I got three passes at 143 mph assuming air temp of 77F
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Old Aug 14, 2011, 11:20 AM
Ginger or MaryAnn ??
fh64_lucky's Avatar
United States, TX, Garland
Joined May 2005
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Thanks Don!I need to bump it up some I guess..... It was 85 degrees out but thats close enough...its a pretty reliable setup.
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Old Aug 15, 2011, 02:38 PM
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Sweden, Gävleborg County
Joined Jan 2004
851 Posts
Hi Don.

I dont know if any pass is ok to doppler, but the one at 5:40 is one of the best....did not think of the option to doppler, until after the flight, so the flybyes is probably to short.

MagnusEL Ryggskott "Monster Setup", Mohed (7 min 5 sec)



Scorpion HK3026-1000 with 10x6 RAM propp (glow!), 6s 3300 20-30C Old Zippy-H 92A and ~2000W

Temp was 18 degreeCelcius
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Last edited by MagnusEl; Aug 15, 2011 at 02:43 PM. Reason: Added temp.
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Old Aug 24, 2011, 12:00 AM
Wonderfully Wicked
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Willoughby, Ohio
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88 mph at 5:40 Too many throttle chops you nee to hold throttle longer and fly flat and level.
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Old Aug 24, 2011, 06:40 AM
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MagnusEl's Avatar
Sweden, Gävleborg County
Joined Jan 2004
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Thanks Don. Thats what I get with RC Speedo , well 87mph.
@ 2:12 I get the fastest pass, 114 mph.

As I said, I did not have doppler in my mind at the time...
Ill do better next time!

Thanks again!
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Old Sep 18, 2011, 10:36 PM
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Wichita,Ks
Joined Feb 2007
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Anyone wanna take a crack at this one

Oklahoma Dust Bowl 2011 - Ralphs super fast Sundowner (1 min 44 sec)



Temp was about 80 degrees
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Old Sep 22, 2011, 04:08 PM
DELTAS RULE
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tehachapi, CA
Joined Jan 2006
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crap i forgot to check back to this thread! :O thanks don!


Quote:
Originally Posted by The Don View Post
151 mph, rpm= 34566
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Old Sep 22, 2011, 09:44 PM
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Edhs's Avatar
the seventh planet
Joined Dec 2010
492 Posts
I did some runs today on "RC_SPEEDO" but failed to set the correct temperature! im wondering what error this would play in the calculation... the program was set at 37C but it was realy 21C. any way to calculate the actual measured speeds?
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Old Nov 23, 2011, 02:21 PM
Fly it like you stole it..
Tram's Avatar
Florence, Al
Joined Oct 2000
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Hey Don-

Could you compare these RCSpeedo reading with your Doppler abilities?

Thanks man..

Jeff

RCSpeedo versus Doppler video. (3 min 6 sec)
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Old Nov 23, 2011, 02:47 PM
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United States, TN, White House
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That sucker was scootin!
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Old Nov 23, 2011, 03:14 PM
Fly it like you stole it..
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Florence, Al
Joined Oct 2000
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Well, it's only a 20" span, so it looks faster than it is..
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Old Nov 23, 2011, 03:46 PM
Ginger or MaryAnn ??
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United States, TX, Garland
Joined May 2005
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I was gonna make fun of it,but in video,you look bigger than me,so I wont say a word.......
And even for its small size,it is moving well!
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Old Nov 23, 2011, 07:57 PM
Wonderfully Wicked
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Willoughby, Ohio
Joined Jan 2002
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Quote:
Originally Posted by Tram View Post
Hey Don-

Could you compare these RCSpeedo reading with your Doppler abilities?

Thanks man..

Jeff
What was your air temperature? BY the way I have done this myself as as long as you make good doppler passes like you are doing and you make sure the RCSpeedo app has the correct air temperature (I manually enter the value in). I have found the app to doppler within 1 mph of what I get manually

Don
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