Expired Contest Poll VOTE NOW - Photo Contest #150 Poll (Machines in Motion - February 2019)

Ole · **1 Like**

Welcome to the poll for our February "Machines in Motion" photo contest! Select the photo you think is the best from among our finalists below:

#1.

#2.

#3.

#4.

#5.

#6.

#7.

#8.

#9.

#10.

#11.

#12.

#13.

#14.

#15.

littlemoose · 03-16-2019, 04:45 PM

No 11

**jrferrermn** · 03-16-2019, 05:18 PM

It is #11 for the winner.

mandiman · 03-16-2019, 05:49 PM

#2 is my pick

JWC · 03-16-2019, 06:03 PM

Lots of great photos, but #5 grabbed my attention more than the others.

Pete2815 · 03-16-2019, 06:25 PM

Originally posted by cqfast

Seeing the one sharp aircraft tells me that the photographer was carefully following it. Maybe this photo of the sharp vs. motion-blurred aircraft would be more dramatic if there was slightly less overlap of the two aircraft. But it was impressive timing to catch them perfectly overlapping!

I agree. I went to an air show a few years ago and timing and exposure were very difficult. I then had the camera take 5 fps to try and improve my timing.

reh321 · 03-16-2019, 09:21 PM

I'll always vote for the train.
#13 is leaving smoke behind in its wake.

Racer X 69 · 03-16-2019, 10:12 PM - **2 Likes**

Originally posted by gordon_l34

Hi,
No 14 and again I wonder about how the prop wash was created.
Regards.

Originally posted by SSGGeezer

High humidity with each prop and flap edge creating vortices from the change in pressure from high to low after leaving the airfoil! I love it as an amazing technical image and I love aviation images.

Originally posted by PJ1

Too many good ones again, My choice goes against the trend.

This is one I almost went for. I have seen prop wash like that with the naked eye watching aircraft taking off in high humidity.

Originally posted by cqfast

I'd very much like to know how that 'propwash' was accomplished!

It is sort of like cavitation.

Like when a boat propeller slices through the water.

The atmosphere has a lot of moisture in it, and the trails formed off the ends of the airplane propellers is water that has been compressed so forcefully and so rapidly that it vaporizes, leaving the linear "clouds".

Also notice the clouds of vapor forming off the back of the main wing, near the fuselage. As it spills off of the top of the wing and fuselage, it speeds up, and again, behaves like water that is cavitating.

It is the same phenomenon as that which creates the vapor trails we see when a jet is cruising at speed 35,000 or 40,000 feet up. The airplane is slicing through a mixture of water, hydrogen, nitrogen, argon, oxygen, carbon dioxide, neon, helium, methane, etc. as it pierces this soup, the aerodynamic shapes manipulate the flow, creating lift and thrust. The pressures, the ways in which they change the properties of the soup, and the speed at which it all happens, make those temporary clouds that look like puffy white trails.

**raider rob** · 03-16-2019, 10:44 PM - **1 Like**

Originally posted by Racer X 69

It is sort of like cavitation.

Like when a boat propeller slices through the water.

The atmosphere has a lot of moisture in it, and the trails formed off the ends of the airplane propellers is water that has been compressed so forcefully and so rapidly that it vaporizes, leaving the linear "clouds".

Also notice the clouds of vapor forming off the back of the main wing, near the fuselage. As it spills off of the top of the wing and fuselage, it speeds up, and again, behaves like water that is cavitating.

It is the same phenomenon as that which creates the vapor trails we see when a jet is cruising at speed 35,000 or 40,000 feet up. The airplane is slicing through a mixture of water, hydrogen, nitrogen, argon, oxygen, carbon dioxide, neon, helium, methane, etc. as it pierces this soup, the aerodynamic shapes manipulate the flow, creating lift and thrust. The pressures, the ways in which they change the properties of the soup, and the speed at which it all happens, make those temporary clouds that look like puffy white trails.

Thanks for the explanation - enough to understand it without making it boring, even for an idiot like me. I've always been fascinated with vapor trails, which is why I voted for #14 as well.

**carlwood** · 03-16-2019, 11:23 PM

There are so many really great photographs in this contest. They all have something to say but not necessarily "machines in motion". I'm going for number 7.

Biggles_101 · 03-17-2019, 12:08 AM - **1 Like**

No.1 was my choice closely followed by No.13.

Finny · 03-17-2019, 01:26 AM

no 3 is gorgeous! Love ❤️ it[COLOR="Silver"]

Janet wolfenden · 03-17-2019, 03:46 AM - **1 Like**

no.14!

Henk N · 03-17-2019, 03:52 AM

Originally posted by Chester UK

Am I the only person bored with aeroplane and motorcycle pictures?

No,you're not ;-))

Rees · 03-17-2019, 06:02 AM

Number 15 has my vote. Good luck to everyone.

10MilePix · 03-17-2019, 07:36 AM

#9 gets my vote

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03-16-2019, 05:18 PM	#32
jrferrermn Site Supporter Join Date: May 2013 Photos: Albums Posts: 341	Voting for Machines in Motion It is #11 for the winner.

03-16-2019, 06:03 PM	#34
JWC New Member Join Date: Apr 2013 Posts: 4	Machines in Motion Vote #5 Lots of great photos, but #5 grabbed my attention more than the others.

03-17-2019, 01:26 AM	#41
Finny New Member Join Date: Jun 2015 Photos: Gallery Posts: 29	no 3 is gorgeous! Love ❤️ it[COLOR="Silver"] Last edited by Finny; 03-17-2019 at 01:46 AM.

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View Poll Results: Pick the photo you think should win the contest
#1	44	9.26%
#2	56	11.79%
#3	16	3.37%
#4	5	1.05%
#5	16	3.37%
#6	25	5.26%
#7	26	5.47%
#8	7	1.47%
#9	26	5.47%
#10	11	2.32%
#11	37	7.79%
#12	30	6.32%
#13	34	7.16%
#14	45	9.47%
#15	97	20.42%
Voters: 475. You may not vote on this poll

03-16-2019, 04:45 PM	#31
littlemoose Forum Member Join Date: Mar 2013 Location: Brisbane Posts: 88	No 11

03-16-2019, 05:49 PM	#33
mandiman Junior Member Join Date: Dec 2014 Posts: 32	#2 is my pick

03-16-2019, 06:25 PM	#35
Pete2815 Senior Member Join Date: May 2013 Location: Tennessee Posts: 194	Originally posted by cqfast Seeing the one sharp aircraft tells me that the photographer was carefully following it. Maybe this photo of the sharp vs. motion-blurred aircraft would be more dramatic if there was slightly less overlap of the two aircraft. But it was impressive timing to catch them perfectly overlapping! I agree. I went to an air show a few years ago and timing and exposure were very difficult. I then had the camera take 5 fps to try and improve my timing.

03-16-2019, 09:21 PM	#36
reh321 Pentaxian Join Date: Nov 2014 Location: South Bend, IN, USA Photos: Gallery \| Albums Posts: 23,180	I'll always vote for the train. #13 is leaving smoke behind in its wake.

03-16-2019, 10:12 PM - 2 Likes	#37
Racer X 69 Moderator Man With A Camera Join Date: Jun 2010 Location: The Great Pacific Northwet, in the Land Between Canada and Mexico Photos: Gallery \| Albums Posts: 28,068	Originally posted by gordon_l34 Hi, No 14 and again I wonder about how the prop wash was created. Regards. Originally posted by SSGGeezer High humidity with each prop and flap edge creating vortices from the change in pressure from high to low after leaving the airfoil! I love it as an amazing technical image and I love aviation images. Originally posted by PJ1 Too many good ones again, My choice goes against the trend. This is one I almost went for. I have seen prop wash like that with the naked eye watching aircraft taking off in high humidity. Originally posted by cqfast I'd very much like to know how that 'propwash' was accomplished! It is sort of like cavitation. Like when a boat propeller slices through the water. The atmosphere has a lot of moisture in it, and the trails formed off the ends of the airplane propellers is water that has been compressed so forcefully and so rapidly that it vaporizes, leaving the linear "clouds". Also notice the clouds of vapor forming off the back of the main wing, near the fuselage. As it spills off of the top of the wing and fuselage, it speeds up, and again, behaves like water that is cavitating. It is the same phenomenon as that which creates the vapor trails we see when a jet is cruising at speed 35,000 or 40,000 feet up. The airplane is slicing through a mixture of water, hydrogen, nitrogen, argon, oxygen, carbon dioxide, neon, helium, methane, etc. as it pierces this soup, the aerodynamic shapes manipulate the flow, creating lift and thrust. The pressures, the ways in which they change the properties of the soup, and the speed at which it all happens, make those temporary clouds that look like puffy white trails.

03-16-2019, 10:44 PM - 1 Like	#38
raider rob Site Supporter Join Date: Dec 2010 Location: Olathe, KS Photos: Gallery \| Albums Posts: 118	Originally posted by Racer X 69 It is sort of like cavitation. Like when a boat propeller slices through the water. The atmosphere has a lot of moisture in it, and the trails formed off the ends of the airplane propellers is water that has been compressed so forcefully and so rapidly that it vaporizes, leaving the linear "clouds". Also notice the clouds of vapor forming off the back of the main wing, near the fuselage. As it spills off of the top of the wing and fuselage, it speeds up, and again, behaves like water that is cavitating. It is the same phenomenon as that which creates the vapor trails we see when a jet is cruising at speed 35,000 or 40,000 feet up. The airplane is slicing through a mixture of water, hydrogen, nitrogen, argon, oxygen, carbon dioxide, neon, helium, methane, etc. as it pierces this soup, the aerodynamic shapes manipulate the flow, creating lift and thrust. The pressures, the ways in which they change the properties of the soup, and the speed at which it all happens, make those temporary clouds that look like puffy white trails. Thanks for the explanation - enough to understand it without making it boring, even for an idiot like me. I've always been fascinated with vapor trails, which is why I voted for #14 as well.

03-16-2019, 11:23 PM	#39
carlwood Site Supporter Join Date: Dec 2011 Location: Blue Mountains, Australia Posts: 121	There are so many really great photographs in this contest. They all have something to say but not necessarily "machines in motion". I'm going for number 7.

03-17-2019, 12:08 AM - 1 Like	#40
Biggles_101 New Member Join Date: Jul 2017 Location: Flinders Posts: 22	No.1 was my choice closely followed by No.13.

03-17-2019, 03:46 AM - 1 Like	#42
Janet wolfenden New Member Join Date: Feb 2019 Location: manchester Posts: 6	no.14!

03-17-2019, 03:52 AM	#43
Henk N New Member Join Date: Feb 2019 Posts: 9	Originally posted by Chester UK Am I the only person bored with aeroplane and motorcycle pictures? No,you're not ;-))

03-17-2019, 06:02 AM	#44
Rees Senior Member Join Date: Apr 2009 Location: Cymru Photos: Gallery \| Albums Posts: 136	Number 15 has my vote. Good luck to everyone.

03-17-2019, 07:36 AM	#45
10MilePix New Member Join Date: May 2016 Posts: 8	#9 gets my vote