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    • All Forums >> RC Helicopters >> Electric RC Helis >> RE: Hirobo XRB PICS!!! and build info.
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    RE: Hirobo XRB PICS!!! and build info. - 2/22/2005 4:41 AM   
    bdavison


     

    Posts: 3360
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    From: Warner Robins, GA, USA
    Status: offline     		helihobby.com has the carbon fiber blades for them. They're not cheap. $65 for a set. They look AWESOME though.
    This has got to be better than the foam ones though. Maybe someone will make plastic ones for it for about 10 bucks a set or something.

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    RE: Hirobo XRB PICS!!! and build info. - 2/23/2005 12:03 AM   
    prowler1k


     

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    From: Norman, OK, USA
    Status: offline     		Ebay CF blades for 49 shipped.

    Supposed to be in by Friday...

    I will post results later...Hopefully, it is not as erratic as some people claim, but full right aileron in FF is starting to bug me.

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    RE: Hirobo XRB PICS!!! and build info. - 2/24/2005 6:34 AM   
    streif



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    Status: offline     		bdavidson,

    Thanks for the great info. I'm sold.

    What's your thoughts on batteries - one extra? Is it pretty hot after two back to back flights? Can it carry a larger capacity battery? What is the recharge time on the OEM battery?

    Love those photos!

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    RE: Hirobo XRB PICS!!! and build info. - 2/24/2005 8:18 AM   
    bdavison


     

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    From: Warner Robins, GA, USA
    Status: offline     		Well, I would recommend getting two batteries. Two is enough.
    I dont recommend flying two batteries back to back. The motors get quite warm after flying a whole battery pack. You need to let it cool down for about 15 min or so before jumping back in the sky again. If you run them back to back, you run the risk of burning up a motor. Its not going to be fun replacing those motors. You pretty much have to disassemble the entire heli to get them out.

    The OEM battery with the included charger takes about 45 min to an hour to fully charge. Flight times are around 15-20min or so per battery pack. As with all LiPo batteries, you dont want to charge them at a rate faster than an hour.

    I think Im pretty much maxed out on what I can do with the heli. I dont worry about crashing it anymore, I just go nuts with it.

    I took it to our weekly fly-in on tuesday, and flew the hell out of it. We fly in a high school gym. I had the thing doing rotating circles, and wild piroettes that were insane. I even flew it through the rafters. There was another fellow out there that just got his, and was learning how to fly it. He's doing real good. I figure in about a week, he will be doing wild stuff too.

    I highly recommend following the instruction manual on trimming and tracking the thing correctly. It flys SO much better once you really tweak it.

    I wish I could post some videos of it doing the aerobatics. Its really wild looking. One of my favorite maneuvers with it is to make it do a slow nice gentle circles about two times, then when everyone sees it going really smoothly, start tightening the circles up tighter and tighter so that the circle eventually compresses into a full deflection wild piroette, then give full backwards cyclic, and let the piroette get bigger and bigger until your doing slow nice gentle circles backwards. It kinda looks like the heli is "going down the drain" if you start with the circles at a high altitude and end it with the fast piroette about a foot off the ground.

    Think about those coin donation thingys that you put a coin in and it starts going round and round, until it gets to the bottom of the cone, and its flying around REALLY fast...same thing.

    I cant recommend this heli enough. Its hot, and fun, and really easy to fly.

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    RE: Hirobo XRB PICS!!! and build info. - 2/24/2005 2:38 PM   
    streif



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    From: , CO, USA
    Status: offline     		So now I'm trying to find a web-dealer that has a Hirobo XRB in stock. Every site I hit says "out of stock"! Prices range from $309 to $350 (+/- shipping). Any ideas anyone?

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    RE: Hirobo XRB PICS!!! and build info. - 2/24/2005 4:21 PM   
    bdavison


     

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    From: Warner Robins, GA, USA
    Status: offline     		I would call them, find out which one has the shortest waiting list....and order and wait. Be prepared to wait for one. There are guys here that are waiting a month to get one.

    I would also check your local hobby shops to see if they can get you one faster. Not to mention this way, you will have someone local to back you up. Tell your hobby shop owner to order about 6 of them. He probably wont have any left after a week, especially if the local's see it fly.

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    RE: Hirobo XRB PICS!!! and build info. - 2/24/2005 7:07 PM   
    CostaRica1


     

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    Status: offline     		I was trying heliproz (best price with shipping included...299$) but they're out of stock, so I ordered from modelrectifier...350$ with free UPS..that was yesterday so give it a try if you want.

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    RE: Hirobo XRB PICS!!! and build info. - 2/24/2005 7:58 PM   
    ToyFigure



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    Status: offline     		Try MTA Hobbies, got mine from them for $309 + tax (I did a pick up in their store). Great people to work with

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    RE: Hirobo XRB PICS!!! and build info. - 2/24/2005 9:32 PM   
    bdavison


     

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    Status: offline     		Have any of you bought and used the Carbon Fiber blades yet.

    I would think they are much more durable than the foam blades, but Id like to know what you guys think.

    Here's the situation. I've been doing aerobatics with the XRB now. And occasionally during a flight, one of the B blades will just pop off right where it joins the plastic root.

    I know this isnt a problem with any parts on the heli. Just that the forces applied are flexing the foam blades so much that they eventually fail. It wont fail during hovering or anything, just when you start doing aerobatics.

    So Im seriously considering the Carbon Fiber blades. I wouldn't think these wouldn't do the same thing considering they are solid, and not really flexible. But what happens if you manage to hit something. Do they explode like the foam ones, or will they take a light hit.

    I just cant see spending $65 on a set of carbon fiber blades if a hit will shred them just like the foam ones.

    If you hit ANYTHING even lightly with the foam ones...they go pop. So if you manage to knick a curtain or something, will the carbon ones go pop too?

    Id hate to shell out that kind of money for something that will solve one problem but make another worse (my wallet).

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    RE: Hirobo XRB PICS!!! and build info. - 2/25/2005 12:36 AM   
    RabidRacer



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    From: appleton, WI, USA
    Status: offline     		so the xrb is ...


    dual moterd?
    and does the thing that looks like exaust just for looks?

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    RE: Hirobo XRB PICS!!! and build info. - 2/25/2005 12:52 AM   
    ToyFigure



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    From: Los Angeles, CA, USA
    Status: offline     		Yup, it's got two coreless motors each powering one set of blades (upper & lower) which counter rotates...thus eliminating the tail rudder thingie.

    It's got a dummy engine and the heli looks great in flight

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    RE: Hirobo XRB PICS!!! and build info. - 2/25/2005 2:37 AM   
    bdavison


     

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    From: Warner Robins, GA, USA
    Status: offline     		Yup, The rear motor operates the top rotor head, and the front motor operates the lower rotor head. They did this for two reasons. Two smaller motors are lighter than one big motor. And using two motors allows them to vary the rpm's on one motor to make the heli rotate (yaw)



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    RE: Hirobo XRB PICS!!! and build info. - 2/25/2005 7:31 AM   
    Donnie7



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    Status: offline     		Hi
    Just got my XRB today. Thats a real indoor heli. So easy to control as compaired to my rotofly and no tail motor to burn up. The only bad thing is charging the battery. You have to pull the canopy down to get to it. Besides the blades, is there any spare parts I should plan on?
    Donnie

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    RE: Hirobo XRB PICS!!! and build info. - 2/25/2005 8:15 AM   
    bdavison


     

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    From: Warner Robins, GA, USA
    Status: offline     		Not really.
    The blades are the only thing that you will probably have to replace at some time.
    Everything else is real solid. I somehow managed to snap off one of the tail fins, but I just CA'd it back on, and havent had a problem since. There not needed for flight, just there for looks.

    Never had any problems with it at all.

    Get a second battery, this way you dont have to wait for the battery to charge to fly. Just dont fly the batteries back to back, to keep it from overheating.

    Im used to flying airplanes, and when you get in trouble with an airplane, the first thing they teach you is pull off all the power. Well, I was flying the XRB in my livingroom about 5 ft high and got a little mixed up on the sticks. Instinct made me pull off all the power....well you know what happened next. Down she went, and fast. The heli hit the deck from 5ft up hard. Nothing...not even a scratch. It even landed on the skids. I wouldnt recommend doing this, but it just goes to show you how durable it is.

    So I would say No...other than blades you probably wont need a thing.

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    RE: Hirobo XRB PICS!!! and build info. - 2/25/2005 8:17 AM   
    bdavison


     

    Posts: 3360
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    From: Warner Robins, GA, USA
    Status: offline     		Oh yeah, review the posts above.
    There is one with a link from a guy named Ricky. He has an extension cable that will allow you to change batteries without removing the canopy.

    I need to order one.

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    RE: Hirobo XRB PICS!!! and build info. - 2/25/2005 9:21 AM   
    Donnie7



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    Status: offline     		bdavison
    I am also a airplane oldie and a heli newbe. Chopping the throttle is not a bad idea on helies either if its going down anyway. I broke my first blade on the XRB tonight. I was getting bold on a table landing and dipped too low, caught the edge. Oh well,,,expected. I still chopped the throttle when I knew it was over. I think its a good habit. Only lost one blade. (A). I ordered that battery extension from ricky. I will let you know how it works out. Seems like a good Idea. The removing the canopy thing to charge the battery is the only no-thought design fault I have found in this heli. Hope I can progress as well as you and do some airobatics soon.
    PS Did you get some plastic cross braces in your kit. I can't figure out where they go??? Nothing in the instructions.
    Donnie

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    RE: Hirobo XRB PICS!!! and build info. - 2/25/2005 9:02 PM   
    bdavison


     

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    Status: offline     		Yeah,

    The cross braces are for the training landing gear. These are the white ones.
    There are also skid braces included in the kit. These are the gray ones. It shows them in the instruction manual. You can also see them on the pics at the beginning of this thread.


    As far as doing aerobatics....give it about a week of solid practice everyday. Youll be going nuts with it too. If you can find a indoor basketball gym someplace, go there and practice, instead of the living room. It requires much more space to really get it going good.

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    RE: Hirobo XRB PICS!!! and build info. - 2/25/2005 10:46 PM   
    Donnie7



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    Status: offline     		Bdavison,
    Still can't find a place for the cross braces. I have the training gear in place just like the instructions but no mention of these cross braces. They don't fit anywhere. There are two of them about 3" long shaped like a very narrow X
    Donnie

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    RE: Hirobo XRB PICS!!! and build info. - 2/25/2005 10:55 PM   
    bdavison


     

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    Status: offline     		Yup, those are the ones...They are supposed to be for the training gear, but I have yet to figure out how to attach them.

    The manual says that the training gear are supposed to form an X with the center of the X directly below the main shaft. But if you do it like that, those little X pieces dont clip on. I dont know, and the manual doesnt say a thing about them. Im sure they are supposed to go on there somehow, but as of yet I havent figured it out. You dont really need them. The training gear isnt going to go anywhere once you put those little rubber links on the main gear.

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    RE: Hirobo XRB PICS!!! and build info. - 2/26/2005 3:52 AM   
    Donnie7



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    Status: offline     		Bdavison,
    Anyway it does kinda fit to the tail boom and training gear. Don't think thats a good idea. I flew mine outside today. The wind sure makes a difference. It sure dosn't like it but it makes for some good practice. I think I am going to go to the light stabilizer weight and short ball link. That might make it fight the wind a little better. Today I was giving full forward and still moving backwards at times wind the wind picked up.
    Donnie

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    RE: Hirobo XRB PICS!!! and build info. - 2/26/2005 5:25 AM   
    greenguts


     

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    Status: offline     		I TIP MY WINGS TO YOU .those were some of the best pics. that i have ever seen.the close-up shots are great. it is great to be able to see all the details of that fine chopper.i love the way its made. i just might get one. I-LIKED-IT --GREENGUTS

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    RE: Hirobo XRB PICS!!! and build info. - 2/26/2005 7:02 AM   
    CostaRica1


     

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    Status: offline     		Hey guys, I really need that you tell how easy to fly is the HRB, I bougt on and hopefully will get it by the end of the next week....but I had big troubles flying the HouseFly...I mean, I'm not just a newbie...I'm a crash waiting to happen....

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    RE: Hirobo XRB PICS!!! and build info. - 2/26/2005 8:27 AM   
    Donnie7



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    Status: offline     		I put the light weight stabilizers and shorter ball joint. The responce reminds me of my rotofly. Its a lot better now. Can't wait to get it to an open area. I love this heli.
    Donnie

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    RE: Hirobo XRB PICS!!! and build info. - 2/26/2005 10:53 AM   
    turboBB


     

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    Status: offline     		I could not for the life of me figure out where to mount the x-braces since there was no mention of them in the manual. However, now I know thx to a pic on page 30 of the Feb '05 edition of Quiet Flyer. The braces are to be used with the tethered version and they mount directly upright onto the landing gear. Looking at the XRB from the side, these braces mount parallel to the landing gear (directly in front and behind the battery tray on the RC version). However as the battery tray extends just a bit further out than the landing gear, they will not stay on very well and I suppose this is why any mention of these were omitted from our manuals.

    I don't think you really need them however on my friend's XRB, he mounted directly onto the landing skids with the space between each landing gear support that extends out from the battery tray. This gives added support to the landing skids in case of sideways impacts to the skids.

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    RE: Hirobo XRB PICS!!! and build info. - 2/26/2005 1:50 PM   
    humveecrusher


     

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    quote:

    ORIGINAL: bdavison

    Have any of you bought and used the Carbon Fiber blades yet.

    I would think they are much more durable than the foam blades, but Id like to know what you guys think.

    Here's the situation. I've been doing aerobatics with the XRB now. And occasionally during a flight, one of the B blades will just pop off right where it joins the plastic root.

    I know this isnt a problem with any parts on the heli. Just that the forces applied are flexing the foam blades so much that they eventually fail. It wont fail during hovering or anything, just when you start doing aerobatics.

    So Im seriously considering the Carbon Fiber blades. I wouldn't think these wouldn't do the same thing considering they are solid, and not really flexible. But what happens if you manage to hit something. Do they explode like the foam ones, or will they take a light hit.

    I just cant see spending $65 on a set of carbon fiber blades if a hit will shred them just like the foam ones.

    If you hit ANYTHING even lightly with the foam ones...they go pop. So if you manage to knick a curtain or something, will the carbon ones go pop too?

    Id hate to shell out that kind of money for something that will solve one problem but make another worse (my wallet).


    Try laminating the blades with packing tape per Rickyblaze. Also the House-fly blades should work well too.

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    All Forums >> RC Helicopters >> Electric RC Helis >> RE: Hirobo XRB PICS!!! and build info.
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