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Old 11-09-2011, 06:42 PM   #1 (permalink)
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Default Bench Testing Your Heli

When you are bench testing your heli (ie. blade tracking, etc.), what method do you use to secure it to the table?

I was thinking some old blades over the the landing gear skids secured to the table with duct tape.

I would on the kitchen table so I can't screw anything into it (Live in a condo so no work bench)
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Old 11-09-2011, 06:45 PM   #2 (permalink)
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just pray the tape don't give way!!! I would get a piece of wood from home depot like 3/4 ply and secure it with straps of some sort. anyways that what im thinking of doing
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Old 11-09-2011, 06:50 PM   #3 (permalink)
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just pray the tape don't give way!!! I would get a piece of wood from home depot like 3/4 ply and secure it with straps of some sort. anyways that what im thinking of doing
This is an excellent idea! I can secure the plywood to the table with cargo straps wrapped around it.I will use some 1 x 5 secured to the plywood with some sort of locking mechanism to hold the heli down.

I just hope the undercarriage screws don't give way. I really don't see them being able to withstand the pressure of the blades.
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Old 11-09-2011, 06:50 PM   #4 (permalink)
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Strapping your heli down is never a good idea could be dangerous

Hint if your swash plate is level and you use your pitch gauge correctly and you have good quality blades you probably wont have any tracking issues

If you have low quality blades such as wood or fiberglass you need to balance them

But a person normally checks tracking when hovering the heli at the flying field
Good luck on this tracking issue
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Old 11-09-2011, 06:50 PM   #5 (permalink)
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just pray the tape don't give way!!! I would get a piece of wood from home depot like 3/4 ply and secure it with straps of some sort. anyways that what im thinking of doing
Do not rely on Duct Tape, you will have rotor marks on your ceiling...
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Old 11-09-2011, 06:51 PM   #6 (permalink)
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If anyone has some photos, it would be much appreciated.

Should I do blade tracking with slight negative pitch?
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Old 11-09-2011, 06:51 PM   #7 (permalink)
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Quote:
Originally Posted by AKPhill View Post
Strapping your heli down is never a good idea could be dangerous

Hint if your swash plate is level and you use your pitch gauge correctly and you have good quality blades you probably wont have any tracking issues

If you have low quality blades such as wood or fiberglass you need to balance them

But a person normally checks tracking when hovering the heli at the flying field
Good luck on this tracking issue
Thanks. I am a newbie and didn't know this.
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Old 11-09-2011, 06:57 PM   #8 (permalink)
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I do my blade tracking in the air. I do think with the heli set-up right and good blades, tracking should not be an issue. I dont even balance my blades. Of course I dont buy wood/fiberglass blades.
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Old 11-09-2011, 06:57 PM   #9 (permalink)
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I would never consider spooling a heli on the bench with the blades on.
I will spool one up without main blades and the tail pushrod disconnected though. Then you can easily hold it down by hand.
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Old 11-09-2011, 06:59 PM   #10 (permalink)
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i spin it up without blades once inside, than take it out with the blades. even the tail rotor spinning will suck in anything loose in the area.spinning up while held down with the blades will also get some vibrations going.imo, it's just asking for a bad ending......
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Old 11-09-2011, 06:59 PM   #11 (permalink)
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If you set the heli up properly the tracking wont be out by much. To correct hover it at head height (wear eye protection) a safe distance away (depends on size).

You can check tracking on the deck but only if you stay away from any +ve pitch (same distance requirements). It is easier to do hovering though.

You should never be so close to a spun-up heli that you need to restrain it in any case...
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Old 11-09-2011, 07:00 PM   #12 (permalink)
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Quote:
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I do my blade tracking in the air. I do think with the heli set-up right and good blades, tracking should not be an issue. I dont even balance my blades. Of course I dont buy wood/fiberglass blades.
Do you use strictly carbon fiber blades?
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Old 11-09-2011, 07:04 PM   #13 (permalink)
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Only carbon fiber! not countiing the blade 120 sr of course.
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Old 11-09-2011, 07:08 PM   #14 (permalink)
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I would never consider spooling a heli on the bench with the blades on.
I will spool one up without main blades and the tail pushrod disconnected though. Then you can easily hold it down by hand.
Thanks. Sure glad I posted here. This dumb idea is now officially dead.

Maybe I should buy this laser pitch guage:

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Old 11-09-2011, 07:11 PM   #15 (permalink)
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This guy is doing blade tracking in his kitchen and spools up the heli indoors and then uses a laser to check the tracking:

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Old 11-09-2011, 07:22 PM   #16 (permalink)
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I'm new also and the laser idea from ron soundscrazy. you have to put tape on four walls. he doesnt say that the tape has to be perfect level to one another. so what if you put tape three feet off the ground and one five feet you split the diff??? what the!!! I was considering thishttp://www.espritmodel.com/rc-logger...tch-gauge.aspx
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Old 11-09-2011, 07:45 PM   #17 (permalink)
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I dont think blade tracking has to be "laser" close. If your vision is normal, you can see if the tracking is right or not.
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Old 11-09-2011, 08:14 PM   #18 (permalink)
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For tracking I use the method that the Vbar setup software recommends. At exactly midstick/0* pitch fold the blades out to the side of the heli and see if the tips are even. If not adjust links until they are. I've never had to make any adjustments in the field after I started doing it that way. Tracking is always spot on.
Note: On larger helis it can be hard on the servos so some people lay the heli on it's side so they just hang down.
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Old 11-09-2011, 08:56 PM   #19 (permalink)
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Quote:
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For tracking I use the method that the Vbar setup software recommends. At exactly midstick/0* pitch fold the blades out to the side of the heli and see if the tips are even. If not adjust links until they are. I've never had to make any adjustments in the field after I started doing it that way. Tracking is always spot on.
Note: On larger helis it can be hard on the servos so some people lay the heli on it's side so they just hang down.
I like this. You fold the blades out to the left or the right of the heli?
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Old 11-09-2011, 08:56 PM   #20 (permalink)
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Quote:
Originally Posted by luckyshot View Post
I'm new also and the laser idea from ron soundscrazy. you have to put tape on four walls. he doesnt say that the tape has to be perfect level to one another. so what if you put tape three feet off the ground and one five feet you split the diff??? what the!!! I was considering thishttp://www.espritmodel.com/rc-logger...tch-gauge.aspx
ROTFLMAO!!!!
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