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Home✈️Aircraft🚁HelicopterFuel-Helicopters New or Limited ActivityQuickWW › Drank the coffee, walked out with Bat Gasser
12-24-2010 02:42 PM  9 years ago
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racer8297

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Macungie, PA

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Drank the coffee, walked out with Bat Gasser
So I stopped by QWW the other day and drank 2 cups of the coffee. Got to talking with Irwin and he told me about his "make an offer" sale. I had been wanting a gasoline powered heli for some time but the economy has been limiting my hobby expenditures but the deal I made was too good to pass up. Irwin had a heli that someone had started but was having a hard time with. I took that heli as well as one of the 30.5cc modified Zenoah motors, some Bluebird digital servos and a few other sundry items needed to complete the heli.

Here is a shot of most of the parts laid out and ready to start.

After I tood the photo I started to take out the screws that were installed in the frames and noticed that they had NO loctite on them. I guess that the original owner did not read the instructions nor had any knowledge of building helis nor any common sense.

Anyway, I will continue the build between Christmas and New Years and I will post as it progresses.

Meanwhile, Happy Holidays and Merry Christmas to all.
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12-24-2010 04:38 PM  9 years ago
racer8297

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Macungie, PA

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I started in on the heli by removing all the screws holding the frames together (the previous owner had not Locktited the screws not did he have the servos installed as per the instructions). Oddly, the elevator and aileron control levers were held on by red Locktite and it appears that one of the ball bearing may have gotten some in there making it a little rough. I will try to clean it out.

As far as the components, they are a work of art. In the past I have built 3 Raptors and 1 Quick Bat 50Pro. I must say that the difference in quality of the parts such as the blade grips and pillow blocks that hold the main shaft bearings and the motor mounts is very apparent. The Raptors, although very good flying helis, look like toys in comaparison to this machine.

BTW, I will be using an electric cooling fan instead if the usual fan shroud. I will use a dedicated battery for the fan, I think that this heli can take the minimal extra weight with no a hiccup.

I look forward to flying this machine and I pray for warmer weather. It is 30 degrees with gusty winds today. And the 15 day long range forcast isn't looking much better. Oh well, at least I have my Bat Gasser to build!
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12-27-2010 06:34 PM  9 years ago
racer8297

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Macungie, PA

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Here is a shot of the fuel tank ready for assembly. I chose to use brass tubing instead of the stainless steel tubing supplied with the kit. I find it easier to bend. Also note, I am using the Sullivan Super Clunk as it is heavier that the one supplied. You can see that the clunk and the bulkhead fitting are tied with safety wire.

And here is the tank assembled:

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12-27-2010 06:41 PM  9 years ago
racer8297

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Macungie, PA

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So far the parts all fit perfectly. The only thing I can say at this point is that the instructions can be a little difficult to follow but being that I have built quite a few helis including a Quick 50 it is really a non issue.

Whoever had this heli before really did not follow the instructions at all. No Loctite except on the aileron levers and it got into one of the ball bearings. I have not been able to clean that out so I will need to replace it so that it operates smoothly. He also had the fuel tank set up backwards and he had put the bulkhead fitting (the fitting where the clunk line goes) facing to the rear, totally contrary to the instructions.

All the machine parts are perfect as well as the G10 frame parts. So far it is a really nicely exectuted heli and I am getting excited to see it fly. Too bad that we are stuck in frigid, snowy weather here in the Northeast. Oh well, they say good things come to those who wait!

Jim
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12-28-2010 11:39 PM  9 years ago
racer8297

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Macungie, PA

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Now I have the frames together and you can see the electric cooling fan installed. So far so good. But still, the instructions can be a little confusing but with a little thought and planning it has not been a problem.

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12-28-2010 11:43 PM  9 years ago
racer8297

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Macungie, PA

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And here is the motor mount. I needed to remove the mount that comes with the motor. First the pulls starter comes off, exposing 3 Phillips head screws. The new mount bolts right in to the 3 holes using the same 3 screws and red high temperature Loctite. Perfect fit. And the new mounts have rubber bushings where it mounts to the frame. They look like they will absorb much of the vibration from this bad boy motor.

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12-30-2010 05:02 PM  9 years ago
racer8297

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Macungie, PA

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I was checking over everything I had done do far and I noticed some side to side play in the elevator shaft. What was causing it was the fact that one of the flanged bearing was in backwards, with the flange on the outside. It is clear to me that the guy who originally bought this heli did not read the instructions nor did he use any common sense. So I had to take apart one side of the heli and flip the bearing so the flange was on the inside.

Here is a shot of the backward bearing:
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12-30-2010 05:14 PM  9 years ago
racer8297

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Macungie, PA

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Now I am working on the fan hub and clutch. I am using an electric cooling fan so the mechanical fan is not needed but the clutch still mounts on the fan hub. At this point it is critical to check the runout of the fan hub and the clutch shoe. See picture below.

At first try I had .008" of runout on the hub so I tried different positions to no avail. What I wound up doing was to remove the hub and turn the collet 180 degrees and remounted the hub. This left me with .002" of runout, well within the recommended .004".

If you don't have a dial indicator I would suggest that you get one. They can be had for less that 30 bucks at Northern Tool and even Amazon. I use it for my helis and prop plane motors to check runout. It makes a huge difference!

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01-01-2011 10:46 PM  9 years ago
smallplanes

rrElite Veteran

S.C. ,SSA

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You need to indicate the inside of the fan hub not the outside.
Spectra G 26cc
Jewel
Bat 27cc
Trex 700<br
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01-02-2011 01:15 AM  9 years ago
racer8297

rrApprentice

Macungie, PA

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Hi Smallplanes,
I have indicated both inside and outside of the fan hub and the inside of the clutch itself. My point was that everything was within the specs.

Thanks for making the clarification.
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01-02-2011 02:38 AM  9 years ago
smallplanes

rrElite Veteran

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Just a tip glad you got it tight.

Thanks
SP

Spectra G 26cc
Jewel
Bat 27cc
Trex 700<br
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01-02-2011 07:33 PM  9 years ago
racer8297

rrApprentice

Macungie, PA

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Just wanted to update this thread. Here is a picture of where it stands right now with the heli ready for the motor and the tail assembled (just needs the ball links and blades).

I have to do some non RC stuff now and I am back to work tomorrow, oh well. Hopefully I will finish up this coming week.

At this point, I must say that the fit and finish on this bird is wonderful. I can't wait to fly it although we have colder weather heading our way. Oh well!
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01-08-2011 07:34 PM  9 years ago
racer8297

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Macungie, PA

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Now I have the electric cooling fan and motor mountied. This is the 30cc motor so the fan had to be mounted higher, hence the small tabs you see in the picture.

I am really looking forward to flying this beast! It is looking like one mean machine!

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01-08-2011 08:56 PM  9 years ago
windy62

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USA

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Is the 30cc engine bigger? Did you make these tabs are are they stock QWW parts?windy62
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01-08-2011 09:18 PM  9 years ago
racer8297

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Macungie, PA

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Hi Windy62,

The tabs were supplied by QWW.

I believe that the engine is a Zenoah 30.5 Big Bore.
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01-12-2011 04:49 PM  9 years ago
racer8297

rrApprentice

Macungie, PA

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I forgot to mention how nice the CNC motor mounts are. The have rubber and brass well nuts which should do a great job of absorbing vibration. Here is a shot:

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01-28-2011 11:36 PM  9 years ago
Magnumeng

rrVeteran

Good old NC

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did you ever finish the rebuild?
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01-29-2011 01:13 PM  9 years ago
racer8297

rrApprentice

Macungie, PA

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Magnumeng,

No, I didn't. The day after my last post was the first day of my vacation in the sunny BVI. My wife and I needed to get out of the snow and cold for a bit. This northeast winter is getting a little hard to take!

Anyway, I am back now and will continue on the heli this afternoon and probably finish tomorrow or Monday.

I may have to take it to a warmer climate for the maiden!

Jim
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01-31-2011 01:31 PM  9 years ago
racer8297

rrApprentice

Macungie, PA

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This is where it's at right now. Ready for linkage and radio install. Also, note the beautiful CNC tail. I just love the machine work on this bird!

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02-06-2011 08:10 PM  9 years ago
helijunky

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s elgin il

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have u finished and flown it yet?
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