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Gas Powered Thoughts Advice for Gas Helicopter Success from Carey Shurley


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Old 05-24-2012, 12:53 AM   #41
red_gol
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That would be cool. Hope I can get it in China market.
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Old 06-11-2012, 07:25 PM   #42
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Default Whiplash Gas - Additional Required Components

Now that the model has started to ship in limited qtys, I wanted to make sure nobody is surprised when they get their kit as to what they need to have:
  1. A motor - must be an RC format motor - either Zenoah or Chung Yang - I would recommend one of the balanced/modified ones, you can see why I recommend that HERE
  2. A muffler - the RC motors usually come with one but it doesn't sound pleasant. You can see some alternatives HERE
  3. A zenoah two shoe clutch - depending on where you get your motor it may be included. It is not in the kit
  4. Fuel system parts - you can see how I recommend plumbing it HERE
  5. Main/Tail Rotor Blades - 690mm mains and 105mm tails are recommended
  6. Radio system/components - your choice here but you need 5 servos
  7. Fuel Oil - THIS will help

As options you can add the M/A Air Filter and/or the C/F T/R pushrod but nothing else is really needed to get your Whiplash Gas going!
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Old 06-11-2012, 09:19 PM   #43
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Also take note that the kit is not going to ship with a clunk for the fuel tank of any sort. It [may] come with your engine (so I am told) but I bought a modified engine and it did not. I bought the one I'll use from Ron Lund. I bought my clutch from Dave's. I also bought the TR880BL heat shield from Dave's.

Anyway... Get a clunk. Pretty important.
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Old 06-14-2012, 07:02 PM   #44
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Carey,

Are you aware of the CF tail pushrod kit P/N yet? Cannot seem to find it anywhere...

Josh
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Old 06-14-2012, 09:21 PM   #45
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MA0868-0 is the universal c/f pushrod kit

I do NOT know if it contains the little round plastic standoffs and hardware needed to adapt the std tail boom guides

it does appear to have all the parts to make the rod
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Last edited by carey shurley; 07-11-2012 at 10:06 AM..
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Old 06-14-2012, 10:31 PM   #46
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Thank you, Carey.
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Old 06-15-2012, 06:58 PM   #47
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Default t/r push rod

The MA2700-105 kit is for three push rods. 0868-0 is the kit for one rod. you will need the 0868-5 t/r pushrod guide(two in a pack) I just made two up and am using one guide in the center on each.
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Old 06-19-2012, 10:14 PM   #48
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Default C/F Push Rod Orientation

Carey,

Does it matter which end of the C/F tail rotor push rod connects to the servo?

For clearance, does it make sense to have the exposed rod end (non-reinforced end) at the servo?
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Old 06-20-2012, 07:17 AM   #49
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originally the front end of the rod has no gap because the rods were breaking there due to vibration from the motors

I'm not sure thats as important any more so give it a try
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Old 06-20-2012, 07:46 PM   #50
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I made my last three with no gap(rod all the way in)and no brass tube. Used JB weld and so far no problems.
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Old 06-21-2012, 05:39 AM   #51
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personally, I never had a problem with the rod shattering but I know with certainty that there were Spectra-G customers who had rod failures on the front end of the model, which is why the brass sleeve was born. I usually run tail boom mounted servos and didn't have any rod failures.

The Whiplash has a different frame design from the Spectra and can't flex around the center of the frame so I doubt that the sleeve will really matter.
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Old 06-21-2012, 10:43 AM   #52
carey shurley
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Default Clutch Notice

as has been stated, WG does not come with the actual clutch assembly it uses the std Zenoah R/C clutch. It was designed for an original Zenoah designed clutch

Note that the clutch bolts on the Chung Yang clone version of the clutch are NOT the same size. The shoulders are 9mm instead of 8mm as found on the zenoah clutch.

So the starter yoke in the kit is made for 8mm bolts.

If you're building WG make sure you get an OEM Zenoah R/C clutch or be prepared to ream out the starter yoke.
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Old 06-21-2012, 11:04 AM   #53
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This happened to me. I got my clutch kit from Heliproz and had to drill out the holes from 8 to 9. I really have no way of knowing, but hopefully this has not created extra vibrations due to any possible imbalance in how I drilled the holes.

- Josh
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Old 06-22-2012, 10:26 PM   #54
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I should add ,I have the brass sleeve on the Spectra but have two on other machines with no problems. Don't know if Ill use it on the Whiplash.
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Old 08-10-2012, 11:52 PM   #55
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Are any Gasser Freaks going to the heli extravaganza in South Carolina in September?

http://www.heliextravaganza.com/

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Old 09-01-2012, 06:05 AM   #56
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Carey Shurley Great video on the builded nice to see someone to take the time
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Old 02-09-2013, 09:30 PM   #57
carey shurley
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Default Upgraded Clutch Bell

Miniature Aircraft has released an upgraded clutch bell for the Whiplash Gas and Nitro helicopter to address those cases where sprag bearing failure occurs.

To be honest, I've not heard from anyone flying the Whiplash Gas model that has suffered a sprag failure but I understand there have been some cases where the Whiplash Nitro models have. This upgrade addresses those cases

they are physically identical to the original bells with two exceptions:


New Clutch Bell with Pinion Guide
  • a bronze guide has been pressed into the top of the bell. This provides additional support for the pinion gear
  • the sprag bearing now has a metal cage assembly

Pinion Positioned

the pinion drops into the bell in the same way as it did originally

actually its much easier to install if you turn the entire assembly upside down. The pinion will practically fall in


Pinion Installed

and here you can see the completed assembly with the pinon installed. This installs into the chassis just as the original did
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Old 02-10-2013, 10:00 PM   #58
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In a way, I'm kind of surprised to see this design. I remember when MA first introduced the sprag auto bearing. It was definitely an improvement over the old auto bearings they used to use. They also recommended lubricating that sprag hub but it was mounted on the main gear and operated against the main rotor shaft. How does that work with the sprag mounted in the clutch hub? How do they keep lubricant from getting into the clutch itself?

Just wondering!
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Old 02-11-2013, 12:57 PM   #59
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The original design clutch kept locking up on mine. The new design solved the OWB lock ups.

Lube also kept creeping into my Whip clutch from the OWB. With the pinion removed, I installed a small o-ring on the starter shaft and when installing the pinion, it pushed the o-ring into position, eliminating a leak path. It has been in for a few months and is working good.
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Old 02-13-2013, 05:43 PM   #60
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Nice build videos thanks for taking the time to make them
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