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7 pages [ <<    <     3      4     ( 5 )     6      7     NEXT    >> ]22082 viewsPOST REPLY
Revolution Models . CarbonXtreme . Midland Helicopters

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e-MS Composit Hornet > MS Composit Scale A-Star AS 350, Ecureuil AS350 with triple rotor head
 
 
DarkHorse1
Senior Heliman
Location: Gloucester UK

Do you have any video links without body?

My Ecureuil AS 350 is being built. More info here.
12-04-2006 Over year old.
HOMEPAGE  
 
 
DarkHorse1
Senior Heliman
Location: Gloucester UK

Artwork is not my strong point and have never sprayed a model.
I'm trying to figure out how to paint this body and need some help.

Let any opinions, tips and advice please start rolling...

I've found a supplier Krylon Fusion for Plastic for me to UK import. Mmm "ORM-D Product. No Air Shipping." Might take a while by boat??

What colour scheme from the colours available here?
1 2 3
4 5 6

Image 1: Was my first choice but not confident I can do the stripes.
Image 2: I like a lot, looks simple but won't suit black window decals.
Image 3: Also not good with black windows. Bad colour for flight visibility.
Image 4: Undecided, plain and relatively simple. Visible.
Image 5: Seems easiest to mask and spray .
Image 6: Wavy curve looks hard.

What are the objects on the landing gear of Image 2 & 6?
What are they for and how could I fabricate them on the model?

12-05-2006 Over year old.
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Razmo
Key Veteran
Location: Chicago

Yeah, #1 would be nice choice.

Raz
12-05-2006 Over year old.
 
 
Heli PIC
Senior Heliman
Location: Petaluma, CA USA

What brand of ESC and rx to use?

Hi all, I just got my 3-blade A-Star from Tower Hobbies last week. Before I gether all the necessary electronics, I would like to find out what ESC would best suit the outrunner motor that came with the kit. Electric Fly has BL ESC's as cheap as $39, is it any good or should I get the MS BL ESC for better reliability? What do your guys think about Berg rx for the setup?
Is there anything else I need to look out for during the build? I read about the boom being a little bit too long for the scale setup. Does anyone have any issue about the boom length?
Thank you all.
Happy holidays
12-17-2006 Over year old.
 
 
DarkHorse1
Senior Heliman
Location: Gloucester UK

You will have to use a motor with a long 3.17 mm (1/8 inch) shaft (for conical pinion fit), that is 1100 rpm/v to achieve the desired main rotor RPM range 2100 - 2400. The EM-300/34 (Axi 2208/34) brushless outrunner comes with the Ecureuil AS 350 combo deal.

The recomended ESC options are the simple MS-116 or Jeti Spin11 ESC and Jeti box.
I don't know about 'Electric Fly has BL ESC's' but the Jeti based controllers seem to work very well for me with the Axi style outrunners.

I thought that the Berg Rx is one of the better one's, so you should be fine.

Here's my Ecureuil AS 350 build info and useful links here (still awaiting paints).

Building with the long tail drive shaft gears placed accurately gives the correct boom length. You can always leave a couple of mm on the boom fuselage skin, in case you have a problem and cut it down later.
It is important to make sure the long steel drive shaft is very straight otherwise it will buzz at 12K rpm. Here I added extra bearings to stop resonant zones on the shaft.
12-17-2006 Over year old.
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Heli PIC
Senior Heliman
Location: Petaluma, CA USA

Thank you, DarkHorse1
I started building my tailboom yesterday. Upon initial examination of the boom and shaft, I noticed that both the shaft and the boom are not perfectly straight. I am going to test run the motor with the boom installed to see if there is any vibraion.
Regards
Hiko
12-17-2006 Over year old.
 
 
DarkHorse1
Senior Heliman
Location: Gloucester UK

Emergancy Floatation Gear!!!

> What are the objects on the landing gear of Image 2 & 6?
Well I found out that it is emergancy-floatation-gear.pdf safe self inflating with helium. Fitted for operation over water.

Ecureuil Optional Equipment:
Cargo sling with 1,400 kg load capacity, external mirrors; cabin floor window; emergency floatation gear; electrical hoist; wire strike protection system; cold weather start-up kit; main blades folding kit; ambulance configuration; fire fighting installation; SX 16 Search Light; FLIR; 3-axis Autopilot; GPS, VOR, DME, Transponder, ADF.


> ...how could I fabricate them on the model?
Any ideas? Go on brain storm it...
12-20-2006 Over year old.
HOMEPAGE  
 
 
Heli PIC
Senior Heliman
Location: Petaluma, CA USA

I just purchased a Jeti Spin 11 BL ESC for the outrunner motor that came with the kit.
Should I use the Mode 2 (Acro outrunner with 24-degree advanced timing) or Mode 5/Mode 6 (Constant RPM setting with no advanced timing)? Mode 5 and 6 do not specify whether it is for inrunner motor or outrunner motor.
According to the instruction manual, one has to have the throttle stick at the max position then turn on the tx to initiate the setup. Close the throttle stick when you hear the number of beeps that corresponds to the desired option. Then it has a little note stating "void for Spin 11." What does that mean? If you have a Spin 11, please let me know how you have it setup. I am not using a Jetibox.
Thank you
Happy holidays
12-23-2006 Over year old.
 
 
DarkHorse1
Senior Heliman
Location: Gloucester UK

For conventional throttle curves, if you don't get timing splutter from the motor at high rpm then try Mode2 otherwise Mode1. My 2208/20 on 4s X-3D isn't always happy at high timing 24º at 26,000 motor rpm (32K switching, 8K seems better... still testing). It would probably be fine in normal 3s operations.

"void for Spin 11." refers to the Spin11 doesn't have an on switch.
I have never done this but I assume:
Initialise the ESC with full throttle... the ESC beeps (via the motor pulses)
Either return the throttle to zero stick to store the new 100% stick value for your Tx endpoint etc.
Or cycle through the mode tones and return to zero stick on the one you want to select.

The Ecureuil manual recommends governor mode Constant RPM. I switch between both depending on whether I want to use Revo mixing with standard rate gyro (throttle curves and wag free tail) or HH gyro (gov mode Constant RPM, slight tail jitter).
12-23-2006 Over year old.
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Heli PIC
Senior Heliman
Location: Petaluma, CA USA

Build difficulties

Many thanks to DarkHorse1 for clearifying the myth of Jeti ESC setup.
I just started putting the mechanics together and noted that the main shaft diameter is a bit too big to go through the two bearings. I am thinking to use sand paper to reduce the shaft a bit to see if it will work. I am wondering if you guys out there had similar problems. I am also having a hard time pressing the bevel gear onto the motor that came with the kit. It seems very tight; I worry if I use a vise to press it in, the pinion may crack.
Please let me know what other build difficulties you have experienced.
Thank you
Hiko
12-24-2006 Over year old.
 
 
jlabat
Heliman
Location: San Carlos, CA, USA

Yes i had the same problem. I sanded the shaft to get it right
12-24-2006 Over year old.
 
 
DarkHorse1
Senior Heliman
Location: Gloucester UK

Fuse paint, first stab

More info and pics here.


12-30-2006 Over year old.
HOMEPAGE  
 
 
skiv
Heliman
Location: uk

very nice darkhorse what paint did you end up useing
12-30-2006 Over year old.
 
 
Stack
Veteran
Location: Bethlehem, PA

Looks fantastic.. great job!

Just got my kit in the mail so I'll be popping in now and then.

12-31-2006 Over year old.
 
 
DarkHorse1
Senior Heliman
Location: Gloucester UK

Thanks. I used Krylon Fusion for Plastic satin burgundy and dover white. No surface preperation, just spray and hope .

I got impatient, here's the 98% final build. Still to lock down a few panels and little bits, plus move the Centre of Gravity forward a little (as in the instructions). More build and paint info here.

01-01-2007 Over year old.
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mnb5
Heliman
Location: Zurich/Switzerland

Here is my ecureuil as350... but much smaller...

[url=http://www.rcgroups.com/forums/attachment.php?attachmentid=1119379[/url]

01-01-2007 Over year old.
 
 
DarkHorse1
Senior Heliman
Location: Gloucester UK

Some indoor video...

mnb5, that's a nice looking little Mini-Zoom CP / EP100 ~13" rotor with fuselarge .



MS-900 Semiscale AS350 B-2 Kit


...MS-Ecureuil-AS350-Hovering-In-Small-Room-GE.wmv
15Mb 3.3 mins 25 fps WMV format

Info and excuses here.
01-04-2007 Over year old.
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Razmo
Key Veteran
Location: Chicago

Nice work DarkHorse!!

I have yet to piece mine togther...

Raz
01-05-2007 Over year old.
 
 
Razmo
Key Veteran
Location: Chicago

mnb5,

Is that a kit?

Raz
01-05-2007 Over year old.
 
 
ktip
Heliman
Location: HK

I just post sale notice at classifieds for the MS Ecureuil with aluminum triple main blade grips. Please go to classifieds if you are interesting it.

Thanks,
Tim
01-05-2007 Over year old.
 
 
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Modefo's RC Helicopters . RCHover . ZoomsHobbies

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e-MS Composit Hornet > MS Composit Scale A-Star AS 350, Ecureuil AS350 with triple rotor head
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