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HelicopterAerial Photography and Video › Gasser--Is it a brand, or type of heli??
08-06-2007 07:22 PM  10 years agoPost 1
jascamera

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san francisco, ca

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I hear people mention quite a few time about gasser helicopter. DOes this mean a brand of helicaopter, or helicopter that uses gas engines?

And does gas engine mean that you can use gas from car gas? And what are the advantages?

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08-06-2007 07:58 PM  10 years agoPost 2
Soundwave

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USA

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08-06-2007 09:37 PM  10 years agoPost 3
Hogster

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Surrey, UK

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I think it's an informal term for helicopters that aren't electric - ie. they use an internal combustion engine of some kind. Whether it's specific to gas (unleaded petrol) or nitro I'm not sure .... as I'm an electrics-only flyer

David

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08-06-2007 10:09 PM  10 years agoPost 4
shuttlepilot

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Mullins, South Carolina

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It's a term given to helis that burn gasoline, or petrol. Nitro is what is used for the glow engine powered helis....some folks call them gassers, but that's not quite right. Basically....a gasser burns stinky gas or camper fuel.

Gas is Great
Camper Fuel is Better!!
QWW Helis

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08-06-2007 10:19 PM  10 years agoPost 5
FLAP

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Michigan

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helicopter that burns car fuel (gasoline/petrol). Engine is roughly the same as a weedwacker motor. Gasoline mixed with oil.

Advantages...$2.85 per gallon here in states vs around $20 give or take $5 for nitro. Gasoline helicopter will usually lift more weight than other power types, longer run times. Very reliable motor. From my perspective that is...never had a flame out in 3 years of flying. When tuned correctly, almost no smoke and virtually no exhaust back onto bird like nitro...so good for camera work.

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08-07-2007 04:55 AM  10 years agoPost 6
jascamera

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san francisco, ca

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Then, gasser is what I want. But how about the vibration compare to glow engines and electric motors? Thanks.

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08-07-2007 05:26 AM  10 years agoPost 7
efliernz

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Hamilton, New Zealand

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I haven't flown a gasser in years but I doubt they have improved. A 2-stroke motor shakes - period.

An electric motor is smooooth. My first diy camera mount on my Trex600 was a collection of aluminium bits attached under the standard u/c. No rubber mountings - just a hard connection.

For a compressed 2.2meg small video, check this out. From my Canon-640 in video mode... over a new school construction.

http://www.citynorth.school.nz/Video/28-july.wmv

Pete, Trex500, Trex600E, Streched 600, DSX9, DX7, Low-volt alarms - check the gallery for my alarms

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08-07-2007 05:33 AM  10 years agoPost 8
iskoos

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Orlando, FL

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Then, gasser is what I want. But how about the vibration compare to glow engines and electric motors? Thanks.
That is the only think that may become an issue with gassers. With that being said, I have seen some gassers fly very smoothly. It, of course, requires nicely tuned engine. But never expect a vibration-free machine. I asked some questions about gassers and electrics here couple weeks ago, and everybody recommended electrics and/or gassers for AP.

Here is the summary:

Electric = Pros: vibration-free, clean, quiet
Cons: shorter flight time, lower lifting ability

Gasser = Pros: longer flight time, great lifting ability
Cons: vibration

IMO, you need one of each to own a good AP business.

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HelicopterAerial Photography and Video › Gasser--Is it a brand, or type of heli??
08-07-2007 12:04 PM  10 years ago •• Post 9 ••
FLAP

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Michigan

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for me, using a gasser, the vibration vs other power plants is a non-issue. This is because my underslung mount completely isolates the vibration from the camera. I have taken photos down to 1/60th (when doing late day testing with camera on auto settings) that are completely clear. Obviously, not the usual as I generally shoot at 1/640 or above like everyone else.
I shoot using the same settings as those with electric birds, so I wouldn't make my selectdion for a photobird on basis of gas bird having more inherent vibs than electric or nitro. They do. But, mounts will isolate.

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08-07-2007 03:30 PM  10 years agoPost 10
wwellman

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Marlborough, Ma.

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I agree with Flap...My X-Cell gasser can take pictures at 1/60 sec also but not recommended. If you are careful and build and set up the heli right...the vibration issue is not a factor. Of course the kind of camera mount you choose will also play a large part.

Walter

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08-07-2007 07:43 PM  10 years agoPost 11
Pyrock

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SF Bay Area

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efliernz,

I also have an A640 and wasn't aware it can take such clean video. Is that on a heli or planker? What mount?

Trex 500, Stretched Logo 10 3D, Ion-X, Gaui 200

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08-07-2007 08:05 PM  10 years agoPost 12
aambrose

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Pana, IL

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I've never flown a big electric and I'm sure they're smooth, but these days it seems gassers in general get lumped together when it comes to the issue of vibration. As others stated, not all gassers are alike and even identical models can vary depending on the builder. The mount makes a big difference too.

I've said it before; our GSR flies very smooth and has plenty of lifting power. I think I've touched the needles 2 or 3 times since I bought it. The Pro1 mount works great for us too -- countless photos and only a handful are soft -- mainly due to the fact that the camera mount or heli was moving when the shutter was released. I just don't want others to be misled that all gassers vibrate therefore you should go electric. My 2 cents.

Almost forgot the noise factor. This can be a factor in some situations when using a gasser vs. electric but it hasnt been for us.


Tony

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