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RE: Estimating Altitude? - 1/23/2006 11:32:56 PM   
Sky High



Posts: 1511
Joined: 12/3/2005
From: Atlanta, GA, USA
Status: offline 		Looks like I was close at 2000 ft. One thing I have also noticed is that when I'm watching the actual helo, it seems higher then than it does when watching the video afterwards. I always seem to say to myself after a flight, I thought I was higher than that?

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RE: Estimating Altitude? - 1/24/2006 12:13:46 AM   
Sky High



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Joined: 12/3/2005
From: Atlanta, GA, USA
Status: offline
quote:

ORIGINAL: twinturbostang

SkyHigh: Alright, I'll give you a number. In the highest pics, I'm guestimating 150 to 200 feet. There. Now go prove me wrong by installing some telemetry on your heli.

I think I'll make a 300 ft string with notches every 10 ft and then tie it to my helo and send it up. I'll know for sure then.


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RE: Estimating Altitude? - 1/24/2006 12:39:46 AM   
Sky High



Posts: 1511
Joined: 12/3/2005
From: Atlanta, GA, USA
Status: offline 		Video Server Status

The video server is back up for those that visited earlier and couldn't view the video at the link in the first post of this thread.

< Message edited by Sky High -- 1/24/2006 12:40:01 AM >

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RE: Estimating Altitude? - 1/24/2006 12:42:22 AM   
Sky High



Posts: 1511
Joined: 12/3/2005
From: Atlanta, GA, USA
Status: offline 		How high would you say these are?

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RE: Estimating Altitude? - 1/24/2006 1:26:13 AM   
A10FLYR



Posts: 1282
Joined: 12/6/2001
From: Littleton, CO,
Status: offline
quote:

ORIGINAL: Sky High

I think I'll make a 300 ft string with notches every 10 ft and then tie it to my helo and send it up. I'll know for sure then.



I'd like to know the results...


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RE: Estimating Altitude? - 1/24/2006 1:33:34 AM   
whogdriver


 

Posts: 131
Joined: 10/1/2003
From: Sunny, FL, USA
Status: offline 		Ok guys, guess the altitude time is here. Write your answers down, I'll post the same pics with the altitudes unblanked later. (These are stills from a BWAV system with a 72 degree FOV CCD camera)

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< Message edited by whogdriver -- 1/24/2006 3:47:40 AM >

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RE: Estimating Altitude? - 1/24/2006 4:25:03 AM   
A10FLYR



Posts: 1282
Joined: 12/6/2001
From: Littleton, CO,
Status: offline 		Here's where I make an a** out of my self but it's fun! And no doubt will be enlightening...

#1.....150'
#2.....250'
#3.....300'
#4,6,7....1000'-1500'
#5.....400'
#8.....800'

All guesses are AGL!!

Now that I've committed how about the rest of you??

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RE: Estimating Altitude? - 1/24/2006 5:07:09 AM   
bdavison


 

Posts: 3344
Joined: 8/23/2004
From: Warner Robins, GA, USA
Status: offline 		Never got over 700 ft.

1 = 100ft
2 = 200ft
3 4 5 6 7=350 ft
8 = 650ft



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RE: Estimating Altitude? - 1/24/2006 5:27:29 AM   
twinturbostang



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From: Germantown, MD, USA
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quote:

ORIGINAL: Sky High

How high would you say these are?

The picture of the football field is actually pretty easy. We need to know one piece of information... FOV of the lens. The rest is all geometry/trig.

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RE: Estimating Altitude? - 1/24/2006 5:30:56 AM   
twinturbostang



Posts: 802
Joined: 8/29/2005
From: Germantown, MD, USA
Status: offline 		whogdriver: Don't know the heights, but I'd say pic 7 is the highest, by far!

A10: I disagree with your measurements. I think pic 5 and 8 are at roughly the same altitude.

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RE: Estimating Altitude? - 1/24/2006 6:25:53 AM   
lvspark



Posts: 348
Joined: 4/19/2002
From: WALLA WALLA, WA,
Status: offline 		400'

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RE: Estimating Altitude? - 1/24/2006 6:27:47 AM   
slagburn


 

Posts: 148
Joined: 9/22/2003
From: 5000 ft ASL, CO, US MINOR OUTLYING ISLANDS
Status: offline 		How about this one?


Took off @ 5400 feet, the rock formation on the right is 7255.

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RE: Estimating Altitude? - 1/24/2006 6:29:52 AM   
kd7ost


 

Posts: 402
Joined: 10/12/2003
From: Nampa, ID,
Status: offline 		It's so hard to tell on obliques. They look like miles when they aren't.
I would say you are about 7255?

Dan

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RE: Estimating Altitude? - 1/24/2006 6:30:44 AM   
slagburn


 

Posts: 148
Joined: 9/22/2003
From: 5000 ft ASL, CO, US MINOR OUTLYING ISLANDS
Status: offline 		Not oblique, the camera is tilted up parallel to the fuse in that pic.

edit: or is that still considered oblique? by the way Google Earth puts that rock right at 2 miles from the plane.

< Message edited by slagburn -- 1/24/2006 6:57:43 AM >

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RE: Estimating Altitude? - 1/24/2006 6:58:11 AM   
kd7ost


 

Posts: 402
Joined: 10/12/2003
From: Nampa, ID,
Status: offline 		No actually not. An oblique is between horizontal and vertical. Then I say your altitude is 1855 feet AGL.

Dan

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