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Esprit Model . Thunder Power RC . Mikado Modellhubschrauber

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Scale Model RC Helicopters > Sling Load Ops
 
 
ShuttleJock
Heliman
Location: Norman, Oklahoma

Has anyone attempted sling load operations with an RC? How does this affect the flight characteristics? Does the load tend to have a pendulem effect swinging under the helicopter. Any ideas on a CG hook that can release the load incase I chicken out?
05-16-2002 Over year old.
 
 
ed vega
Key Veteran
Location: nyc, queens

the effects are a pendulum effect if too heavy , knowing how to manuver within the effects can be done . you can find airplane drop tank, or bomb releases that will work too, or make your own servo switched release ..
05-16-2002 Over year old.
 
 
CaliRaptor
Senior Heliman
Location: Menifee, CA

Have you seen the video of the Xcell that is part of a funfly contest? The objective is to pick up a loop with the skid that has a 3' string and a tennis ball attached to the end of the string, fly over to a bucket, and drop the ball/string/loop into the bucket. The guy is hovering over the bucket and lowers the collective to get down. Takes out too much and the heli starts dropping fast--increase collective and heli goes up--levels back out at eye level, but ball continues upward momentum-into rotor blades. String wraps around head and heli falls to earth in a writhing heap.

Anyone have the link to it? It was popular about a year ago...

Be careful slingloading!

Mark
05-16-2002 Over year old.
HOMEPAGE  
 
 
JestRR
Senior Heliman
Location: Florence, Oregon

smoothness!!

I have a working Bambi bucket and it requires a real feel for it!! I've tried several diferent lengths of line. Mostly in a scale length from 15' to 100' ( 8" to about 8' respectively. ) The only way you can do it is by trying it. The water and bucket combo weigh in at 2.5 lbs, and there is a big pendulem effect and it is at a different rate with a different length of line. I like useing the short line cause then i can dip out of a 10 gal tub i made that if i ever had too, I could land right next to it and not hit the blades. the pendulem effect is at a faster rate and wont "pull" the heli around but it does not look scale swinging at that rate. The longer lines look more scale but the swings tend to "pull" the heli longer in any given swing direction but looks more scale. Plus, you cant see that same 10 gal tub at the same time as you are looking at the heli making it very difficult to dip out of your given target. For example, with the short line, if you are really good, you could dip out of a regular 5 gal bucket. Though i wouldnt recomend it!!! With the longer line, you need to be futher back from the heli to be able to see both the heli and the target you are trying to dip out of in the same field of view. meaning watching the heli as you fly it and trying to use your purifrial vision ( Spelling) to put the bambi bucket into the small, and I do mean small water source. Unless you use a BIGGER water source like a pool or an actual lake like i do once in a while. Its the most challenging thing I have ever done while flying!! Now that I actually got the water into the bucket wiht out eather crashing, or dumping the heli into the water, NOW I have to try to dump the water on the the imaginary wild fire, ( garbage can in the parking lot!! ) It is a challenge and I encourage any one to try it. Just fly very smooth wiht no sidden movement so as not to get the bucket entangled cause you know what would happen!!!



Mike

Mike Spinner
Florence OR
NORTHWEST AERIALS/ SCALEWORKS
05-17-2002 Over year old.
HOMEPAGE  
 
 
ShuttleJock
Heliman
Location: Norman, Oklahoma

Thanks

Thanks to all for the great information. I'm a newbie to helicopters and Runryder and I'm more excited now about helis than I've ever been with fixed wing. There are so many more possibilites and challenges with this aspect of flying. I guess that it's true that once you have tried a sling wing you never go back.
05-18-2002 Over year old.
 
 
Alan Szabo Sr
Key Veteran
Location: Las Vegas, Nevada

Towing instead

Never slung anything but at our funfly in Vegas I pulled the US flag for opening cerimonies.
05-19-2002 Over year old.
 
 
Mopzilla
Veteran
Location: Cupertino, CA USA

"Have you seen the video of the Xcell that is part of a funfly contest? The objective is to pick up a loop with the skid that has a 3' string and a tennis ball attached to the end of the string, fly over to a bucket, and drop the ball/string/loop into the bucket. The guy is hovering over the bucket and lowers the collective to get down. Takes out too much and the heli starts dropping fast--increase collective and heli goes up--levels back out at eye level, but ball continues upward momentum-into rotor blades. String wraps around head and heli falls to earth in a writhing heap.

Anyone have the link to it? It was popular about a year ago... "

Mark, I know exactly what you're thinking about!
I don't have the link, but I do remember that it was on the site of a guy with first name "Nate". He had a bunch of links and videos of him flying his heli, i think it was an X-cell. This was a while ago. I'll see if I can find it.

-----------------
Ever stop to think, and forget to start again?
05-19-2002 Over year old.
 
 
Copter Doctor
Elite Veteran
Location: daleville/ft.rucker, al

sling loading

hey dude!
i have sling loded stuff with my long ranger. in the hover it feels fine but in fwd flite it feels abit funny. it has a bit of a pendulum effect. the length of the rope/string makes a difference too so experiment with that. the shorter it is the better it feels. email me at......copterdoctor2002@aol and i will send you some pics.........emile

drive a rotary, fly a rotorcraft
05-19-2002 Over year old.
HOMEPAGE  
 
 
CopterDr
Senior Heliman
Location: Mountain View, MO.

I have a Vario Semi Scale tape that has a "Banana" sling loading and it must have been very heavy.......on approach, it slammed hard to the ground.......but luckly, no damage.
05-19-2002 Over year old.
HOMEPAGE  
 
 
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GrandRC . CanoMod . Futaba-RC

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Scale Model RC Helicopters > Sling Load Ops
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