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HelicopterTandem Rotor Craft Chinook - Osprey › Hirobo CH-47 Chinook - Build (updated October 8th)
12-12-2008 02:12 PM  9 years agoPost 141
tow cobra

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Westhampton, NY

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Unfortunately, parts are pretty tough to come by for this helicopter.

The other thing is that nothing is cheap on this helicopter. For instance, I broke one tooth on my main gear after an electric conversion due to the increased torque of the electric motor and the price of the 77t main gear is $55. Hirobo also makes another 77t main gear for the Freya (I believe) and that one is $5 so I ordered both and I'll see if it is the same part for a different price.

As far as parts, you can always get them from MRC in Jersey directly (just go to their website for the number). You call them with the exact part number from the back of the Chinook manual and they get them out in about 1 day and they stock pretty much everything.

I recently ordered from Zooms heli and they seem to have the parts listed on line and the prices are a few dollars better than MRC direct.

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12-12-2008 09:47 PM  9 years agoPost 142
Mike545

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gettysburg, pa

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I bought it of of Vroomz28, great guy. The only thing that gets me, for the price you would think these things would be in gold. My MA's are far superior in quality. I like the bird, I know they have some teething problems, but I know Id be the only one at the field with this kind. Again Vroomz28 is an awsome guy , did a good job on building it.

"always feel thankful..... never entitled"

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12-13-2008 05:09 PM  9 years agoPost 143
tow cobra

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Westhampton, NY

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I agree, this thing is expensive and the parts are expensive but there is nothing like it.

I keep coming back to it when I get tired of the pod and boom heli's, there is always something to tweek on the Chinook and recently, a bunch of us converted them to electric (see AVconsults thread) which I think is a great improvement over the stock nitro config.

Try it in nitro, though because when you get it right, it can fly. I just like the quiet and lack of oil mess on this particular bird when I fly it on electric.

Enjoy.

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12-13-2008 05:21 PM  9 years agoPost 144
Mike545

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gettysburg, pa

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besides the quite thing, is there any parts reliablity on going electric? I like the oh ah of nitro. I know it eats gears and all, but dont the electric version eat them too? Or is it a heat thing.

"always feel thankful..... never entitled"

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12-15-2008 04:16 PM  8 years agoPost 145
tow cobra

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Westhampton, NY

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Just to let everybody know, the main gear which strips fairly easily in the Chinook costs about $55 to $65 dollars from MRC.

I ordered this 77t main gear from Zooms and I also ordered the other 77t main gear that hirobo makes (I think it's for the Freya but I'm not sure, there is only one other one). Anyway, the $5 main gear works just fine. I can't figure out why the main gear for the Chinook costs $55. It seems to be the same gear.

So next time you guys strip a gear, try the $5 77t hirobo gear unless someone can tell me how these two gear are different.

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12-15-2008 04:19 PM  8 years agoPost 146
tow cobra

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Westhampton, NY

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As far as electric versus nitro, I have found that the lack of vibration that the electric provides lets the three axis gyro work much more effectively. The helicopter is much easier to tune and fly with electric than nitro in my opinion (someone just posted a video of the an electric conversion doing circuits...check the tandem rotor forums and you'll see it posted I think on 12/14).

I have had a much easier time flying mine since I've converted to electric and the nitro mess doesn't particularly bother me because my 50's and 90's and gassers all make a mess but they fly well the way they are.

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12-15-2008 05:11 PM  8 years agoPost 147
Hoverup

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Golden Gulf Coast - USA

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http://www.youtube.com/watch?v=6gF9qfZEDqQ

Cheers - Boyd
AMA 80393
IRCHA 3355
LSF 853
Major USAF
Retired

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12-15-2008 10:12 PM  8 years agoPost 148
Mike545

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gettysburg, pa

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how much does the electric convertion cost? And do you have the part# for the main gear?

"always feel thankful..... never entitled"

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12-15-2008 11:12 PM  8 years agoPost 149
tow cobra

rrApprentice

Westhampton, NY

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The main gear that is made for the chinook: 0402-591; @ $55.68 each

However, I just put this one in and it works fine: 0403-219; @ $5.44 each

Actually, I can't tell the difference between the two except the price and the packaging (there is gold coloring on the wrapper for the $55 one...no kidding)

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12-15-2008 11:22 PM  8 years agoPost 150
avconslt

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Houston, Texas

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Sent PM!

o

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12-16-2008 12:37 AM  8 years agoPost 151
reiserrob2003

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Brockton, MA.

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what exactly does the kit come with, I've been pondering building one for a long time, big commitment money wise though.

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12-16-2008 02:42 AM  8 years agoPost 152
Mike545

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gettysburg, pa

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The kit has alot of aluminum, alot, looks good overall.The begining of the thread might help, I didnt build mine, just bought mine.

"always feel thankful..... never entitled"

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12-16-2008 11:16 AM  8 years agoPost 153
doorman

rrProfessor

Sherwood, Arkansas

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Included!!!

You must add (7) servos (if you build the intended nitro version), a 50 sized engine, and OS is the usual one....and your radio equipment... Everything else is.in the box including the exhuast system.(For OS), the three axis gyro, and blades... And if you order it, it also comes with a very nicely painted fuselage....
Hope this helps you out on the newer version!!

I have to throw in here, that once you own, and are able to set up and fly one of these, you will have reached a level that not everyone will or can... Not saying it is hard or impossible, but what I have considered to be a great challenge, and very rewarding!!!!
Stan

AMA 2918-Team JR, Spin Blades, East Coast Scale Helicopter,Castle Creations

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08-11-2009 05:38 PM  8 years agoPost 154
wise1ofmany

rrNovice

Australia

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Hi guys,New member to the forum so i would like to say hi and a special Hi to those who are adicts of these wonderful creations, been following e conversions and i have one as well,CH-47 electric mix, have to agree that there is nothing like them, having worked on them in AF and Iroquis, became an adict for the 2, anyway just want to know if anyone has done or is considering changing the drive to belt over gear, had my share of woes with teeth and geaaring and am going to try belt, besides being Quieter, and with the current supply of new engines and esc's, though this is an easier way to go, cogs can be machined up easily enough by most machine shops, i am luck enough to have a small but good shop at home, am currently using a Turnigy motor with good sucess but lacking in torque, had considered a flywheel, currently set up with 2 5s1p packs in parallel, but i came across a guy in Canada that runs 4x packs in 2p2s, castle HV controller and missed the motor, but he was running belt and the heli was very quiet with buckets of power and 15min+ flight times, lost the page and link due to a hdd failure, has anyone come across this heli, had the ability to lift a builders shovel in one olf the chips which is why i am so interested in the belt conversion, thanks for any input and good luck to you all, Alex

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06-10-2012 10:12 PM  5 years agoPost 155
vroomz28

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Bagram, Afghanistan

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I think I'd build it to look like the Columbia 234 next time if I had the chance. The Red and white is much easier to see and track in the sky. The green I used made it tougher to fly.

Skids are for kids!

My gallery:
http://www.runryder.com/helicopter/gallery/37191/

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HelicopterTandem Rotor Craft Chinook - Osprey › Hirobo CH-47 Chinook - Build (updated October 8th)
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