Hey Chris B.

[RMcCord]

Guess what showed up at my office today. My new Bergen Tubine Intrepid. Now where do I start reading.

[cbergen]

I thought I might surprise you!! Browse through the manual on CD, read throught the Wren Manual, both to familiarize yourself with the terminology we use and begin to see how it all goes together.

As a quick start, install the boom by pushing it all the way into the clamps, engaging the dogbone for the tail drive, then pull it back OUT 1mm. Rotate the boom so the tail output shaft is horizontal.

Attache the boom supports to the lower frames and tighten the horizontal fin clamp if needed.

Install the rotor blades, noting that one has a white dot, corresponding to the white dot on the blade grip.

Preflight the heli, ensuring that all bolts are tight, gear meshes are good. You will need your can of Powermax propane, install the trigger onto the can and refill the propane canister on board the heli using the brass adpater located above the on-off switch.

Check BOTH batteries using the supplied DURALITE battery checker, plugging the yellow battery leads into the adapter. Anything above 6.9 volts is good to fly.

Mix your kerosene with turbine oil, adding 16 oz of oil to 5 gallons of kerosene. Use BP 2380 or aeroshell 500. I included an overflow hose in your bag of extras, use it as a return for the overflow into your gas can. The fill line has the silver plug and clamp on it. Fill the helicopter until BOTH tanks overflow into the gas can. Close the clamp BEFORE removing the fill hose, then reinstall the silver plug, and remove the overflow hose.

Turn your Tx on making sure that all switches are UP or back, your throttle stick is down and your throttle trim is down. Turn the heli on and wait for the gyro to initialize. Move all controls, verifying correct direction and travel.

For this first start, or anytime you run the heli out of fuel and get air bubbles into the fuel line to the pump, you can "Prime" the system. Do this by raising the throttle stick all the way up and listening and watching for the fuel pump to kick in. Once fuel appears in the fuel line coming into the pump, you should move the throttle stick down immediately. You don't want to fill the Turbine with excess fuel....Except for a night start...:)

Always keep a CO2 fire extinguisher handy when starting, running, and flying your Turbine.

To start the heli, move the throttle trim to the halfway point, raise the throttle stick all the way up, then all the way down again. The Turbine will start, increase in RPM to ground idle, then wait for you for the next step.

Move the throttle TRIM all the way up. This increases the Turbine RPM to Flight idle. It is now ready for takeoff. Slowly raise the throttle/collective stick up, increasing the RPM and the pitch until the heli lifts off the ground into a nice hover at about 1450 headspeed.

Idle up 1 is set for a 1600 headspeed, and throttle hold also set for autorotations.

To shut the heli down after landing, slowly reduce the throttle, then slowly reduce the throttle trim to the halfway point. Let the turbine RPM stabilize, then reduce the trim to the full down position, shutting down the Turbine.

It will now go through a cool down procedure until the turbine reaches 100 degrees C, at which time it will completely stop.

We have noticed that in warmer climates, the temp will creep back up over 100 C. To keep from heatsoaking the Turbine and bearings, after the Turbine completes the initial cool down procedure, turn the heli off. Turn it back on and raise the throttle STICK to just over the halfway point. If the turbine temp is above 100 C it will again initiate the cool down procedure. You can then bring the throttle stick all the way down while it completes the cool down.

Shut everything off and contemplate the Perma Grin now installed on your face......

I understand that you will have many more questions, this post is just for a quick start to get you in the air. Call me at 269-445-2060 for more details when needed.

[rkeith2]

Been years now and I still can't remove it :-)

[lperagallo]

RMcCord,

Welcome to the wonderful world of Bergen Turbines. Chris forgot one step. After shut down check you pants as you probably wet yourself during the first lift off. All that excitement ya know:clappp

Lou

[RMcCord]

Ron and Lou,
Thanks for your post and your uploads to youtube. I have been watching them since I placed my order with Chris in march, to get my fix.
Have the first of many questions, In Chris post above he states 16 oz of 2380 per 5 gal, In the Wren book it states 4oz per gal. Just checking before I cause any problems.

Thanks
Robert

[lperagallo]

Robert,

I run 3.5 oz per gallon of kero. I also use BP2380 oil. I think Wren says they want 2.5% oil. That works out to 3.2 oz per gallon.

Lou

[rkeith2]

I use Aeroshell 500 (19.2 OZ / 5 US Gallon)

[RMcCord]

Well it starts and stops fine. I have to replace the flybar, it appears to have a slight bend on one side 3/4 way out from the head. ( checked it with a streight edge ). Other than that I am very pleased. Now to get acquainted with my new 2.4 9303. (leaps and bounds from my old Century 7 PCM)

Robert

[cbergen]

If it's not too severe, it's OK to straighten it. We'll get a new one coming to you on Monday as well.

[rkeith2]

When do we get to see some pictures of that new machine?

[RMcCord]

What is the correct way to defuel the Bergen Turbine.

Thanks
Robert

[cbergen]

Take off the fuel line going into the fuel pump on the front battery tray and defuel through it.

[RMcCord]

Thanks Chris.

Ron,
Hopefully next week I will receive my painted canopy from CanopyFX, The second canopy I hope to get Malorie to paint it, waiting on a quote from her.
As soon as I have one I will post pictures. (She is kinda naked right now)

Robert

[copterstudios]

Hey Chris,

Insead of mixing the jet fuel, can you just go to the local FBO and buy jet fuel?

[lperagallo]

Robert,

I'll throw in my two cents. I have a 'T' just in front of the fuel pump, so if I need to defuel, I can attach my pump there. It also helps to get air out of teh line after you run it dry. I use a fuel dot to keep teh line plugged

For fuel you must mix turbine oil with either JetA or kerosene. I've been running kero from the start along with 3.5 oz of BP 2380 turbine oil. Unless you are close to a FBO, it easier to find clean kero from filling stations.

Good Luck,
Lou

[RMcCord]

Thanks Lou,
Will install a fitting first chance I get.

[cbergen]

Insead of mixing the jet fuel, can you just go to the local FBO and buy jet fuel?

For some reason, a common misconception. Jet fuel does NOT contain the oil that we need to lubricate the Turbine. Yes you can run Jet fuel, but you STILL have to add the oil...

[rkeith2]

Not sure how that idea got started and propagated either.

Jet A contains some good stuff to prevent corrosion and bacterial growth in full scale fuel cells and thats it.

I buy Jet A because the POL is right outside my hangar and then I can shoot the breeze about the weather for a while and "what kind of landing was that" stories.

I then mix my Aeroshell and stir it a bit and hit the bricks >>>>>>>>>>>>.

[RMcCord]

My new Bergen Turbine Pics
Received the canopy from CanopyFX today.

Still Smiling :clappp
Robert

[cbergen]

Very NICE!!

[lperagallo]

RMcCord,

SWEET :Bang

Did you cut out holes in the bottom so the turbine can breath? If not, you might want to consider it. It ingests a ton of air when running? I actually have some cut outs on the bottom and side.

Is that a custom design you did with CanopyFx or is that one of his standard ones? If it's custom, do you mind sharing?

Lou

[cbergen]

We initially were concerned with airflow, and made cutouts to ensure airflow.

On my Blue one that I fly now, and have been for a couple of seasons, it has NO extra holes in it!!!! I believe that it's pulling all the air it needs from around the canopy.

If you do decide more air holes are needed, at least put some screen on the inside of the canopy to prevent FOD from getting in there. Yes, the Wren comes STANDARD with a FOD screen over the intake, but every little bit helps.

[RMcCord]

Lou
The canopy design is of CanopyFx designs that they have listed on theiir website. Getya one, I dont mind at all. :)

I have not cut the air holes in the canopy yet. I am undecided as to a design to cut them in on the sides. It might not be wise to cut the hole in the bottom as our ground surface is verysandy.

Robert