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HomeAircraftHelicopterAerial Photography and Video › Simple protection for camera with a Nitro Burner
12-09-2004 12:56 AM  13 years agoPost 1
Rajun151

rrApprentice

Sugar Land, TX

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I've been toying around with my Raptor 50 as a backup camera ship and have a HCS Pro-60 Mount and a Canon A95 for this setup. I did a test using my non-functioning Nikon 995 and 15% Cool Power to see how much oil would be present. The wind was blowing pretty hard and so I did a bit of nose in hovering @ 20 feet or so with the tail into the wind.. I figured this would be a pretty good worst case result and once I landed the camera did have a fair amount of oil on it. Top and Back mainly, nothing on the front, but still way to much for my taste.

So, today, for the first flight with a good camera, I covered all but the lense in stretchable plastic food wrap. In addition, I used clear packing tape to create a sheeting across the two back braces/legs. It took 3 strips but once applied, it created a light barrier for the aft section of the mount.

I burned about 4 tanks of gas and shot a bunch of pictures and none of them had any smoke issues. Further, there was only one little dropplet of oil that I could identify on the stretchable wrap, but I was glad to have it.

This really isn't a pretty or permanent fix to a nitro oil issue, but it works and since this is my backup heli, if I need it, I can use it without messing up my gear.

David

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12-09-2004 08:16 AM  13 years agoPost 2
shootfromabove

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Eagle River, Alaska

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David,
Sounds like a good idea!
Here is another way that has worked pretty well for me when I use my Raptor to carry the camera.
I use an old tail boom fastened to the camera mount, kinda pointed down and back.
Then when I set the heli on the mount I just make sure the exhaust deflector is stuck into the top end of the tube, and it does a pretty good job of keeping the oil off of things.

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12-09-2004 06:20 PM  13 years agoPost 3
Rajun151

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Sugar Land, TX

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Have you found that to have any affect on the engine adjustments and performance? I was considering something along those lines but would be interested to know what you have found.
Thanks

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12-09-2004 06:44 PM  13 years agoPost 4
aambrose

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Pana, IL

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Hey guys. Just ran across this thread and thought I'd put my 2 cents in. I talked to flyboy (see his huge gallery) on this forum about the same thing. He uses a piece of tubing. I believe carbon fiber or something similar to redirect his exhaust. Several have said that as long as the inside diameter of the diverter is as big or bigger than the opening on the muffler then you should be OK. I checked my muffler opening with callipers but cant remember the measurement off the top of my head. I ended up buying a 36" piece of 1/2" aluminum tubing from Lowes and the dimensions seem to be just right. I cut about 2" off the length but have yet to put it on my Raptor 50. I think it will work and it will only add a few grams to the overall weight. flyboy claims he has several hours on his engine with this setup and no ill effects. Scroll near the bottom of his gallery to see some pics of it.


Tony

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12-09-2004 07:05 PM  13 years agoPost 5
CKY

rrVeteran

Sunshine Coast, BC, Canada

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What about a lense adapter for the smaller cameras and a screw on skylight filter to protect the camera's main lense from oil and dust?? Easier to clean and/or replace.

Without protection and castor/klotz. the lense will be toast in no time.

Chris

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12-10-2004 05:29 AM  13 years agoPost 6
Rajun151

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Sugar Land, TX

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I don't think I have that option with the A95.

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12-10-2004 05:57 AM  13 years agoPost 7
waterskier

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Crosby, Texas

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I use a 1/2" x 36" allum. pipe from lowes as an exaust extender on my Raptor 50 with the only effect being that I have to run it about 2 clicks richer, but no noticable power loss. It is not pretty, but does a pretty good job of keeping it clean unless I have the tail into the wind, then I get some oil like david was talking about. I will try the tape trick.....Untill I can get my P-Gasser.....maby santa will bring it.....
Here is a pic. of the exaust extender in action....
http://www.aerialimaging.net/18l

Greg

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12-10-2004 06:13 AM  13 years agoPost 8
CKY

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Sunshine Coast, BC, Canada

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Rajun151

Cut and Pasted from dpreview.com...

A small button releases the chrome collar at the base of the lens barrel, revealing a plastic bayonet. You can now add one of the three add-on lenses Canon offers for this model (via the lens adaptor, which gives you a 52mm filter thread).
• TC-DC52A 1.75x teleconverter
• Close-up Lens 250D 52
• Wide Converter WC-DC52

A 52mm filter will screw on instead of the lenses to the adapter

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12-11-2004 06:32 AM  13 years agoPost 9
Rajun151

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Sugar Land, TX

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Thanks for the info CKY.
I removed the ring and am now going to have to go invetigate what exactly fits over this beeing that the lens automatically protrudes outward when you turn it on. Does it look like a glass pill bottle?
On my way to see.
Thanks

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12-11-2004 06:33 AM  13 years agoPost 10
Rajun151

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Sugar Land, TX

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Thanks for the info/pic, Greg. What are you doing to mount it and couple it with your muffler?

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12-13-2004 05:32 PM  13 years agoPost 11
aambrose

rrElite Veteran

Pana, IL

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Rajun151,
I havent tried my extension tube yet but got the idea from flyboy. I'm eager to hear how Greg has his mounted too. Flyboy uses a couple of those silicone exhaust diverters that attach to the muffler with plastic ties. He told me that he cuts the angled part off of one and uses that to couple the muffler to the tube then uses another at the end of the tube to divert the exhaust away from the tail rotor. He said he uses a couple of plastic ties to secure the tube to the vertical stabilizer by drilling small holes through the stabilizer and running the ties through the holes and around the tube. Also, he uses a scrap piece of the silicone diverter to "insulate" the vertical stabilizer from the tube since it gets very hot. Hope this makes sense and helps. Like I said, I have yet to try it on mine so I'm just relaying what flyboy told me. Hope my rendition was accurate!


Tony

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12-13-2004 08:39 PM  13 years agoPost 12
lakespinner2

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north carolina

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long tail pipe
I stuck a sawed off sponge mop handle (from the dollar store) on my raptor 50 for a test. When it spooled up it the vertical fin (that the pipe is attached to) started shaking side to side, very fast. As the engine came up to speed the bottom of the fin became a blur and it was moving perhaps a quarter inch or so side to side. I backed off and chickened out. If I'd lifted off I suspect it would have cleared right up. It may be that I just hit some resonant length or weight; I need to try it again. Has anyone else had the tail fin shimmy with the long tail pipe?

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12-15-2004 06:03 PM  13 years agoPost 13
waterskier

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Crosby, Texas

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I have a little with mine when to gov is spooling up. But once I get to speed (1700 head RPM) fairly smooth, no more than 1/8" vib on the tail fin......
As good as the extension works, I really want a gasser....I hope santa reads this thread.....

Greg

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12-15-2004 07:27 PM  13 years agoPost 14
iflybyu77

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Fort Wayne, IN

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my little solution..
I may have a odd engine on my R50 that drips (OS) that also is a cause of oil/fuel drips. The drips apparenlty come from the carb, which the camera on my alternate mount is under. The VERY simple solution for this drip issue was to cut a piece of .050" aluminum into a 3"x4" plate that I attached to the front skid mount so that it forced the drips towards the back or the sides and not directly down onto the camera.. Indeed crude.

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12-15-2004 09:01 PM  13 years agoPost 15
aambrose

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Pana, IL

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My OS50 drips too and seems to come from the carb. That's a good idea. Thanks for sharing.


Tony

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12-15-2004 10:57 PM  13 years agoPost 16
mwp

rrApprentice

Chatham, Ontario, Canada

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More info for carb drip problem here if you haven't already seen the post.

http://runryder.com/t147003p1/

Hope this helps.
Mark

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