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04-30-2004 05:43 PM  13 years agoPost 1
rbrown3rd

rrNovice

West Palm Beach, Florida

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On my fifth pack hovering the wind picked up and a big gust tipped me in the wrong direction. I am so new at this that I could not recover and crashed. Bent and broken boom but that seems to be about all. I am going to order a carbon fibre boom. Any suggestions as to one or another?

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04-30-2004 10:43 PM  13 years agoPost 2
KnimRod

rrApprentice

Central Michigan

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The CF boom seems to work pretty good to prevent destruction when you have light strikes but they will break or crack with the heavier strikes. I've gone through several CF booms and they aren't cheap to replace. I even buy my own raw material now and make up my own replacements to avoid paying the $20.00 replacement cost. Naturally, since I've done that, I haven't damaged a single one.

If your just learning, you may want to consider hanging with the stock aluminum boom a while longer because it's cheap to replace if necessary. You can make a pretty simple, cheap and light weight modification to the boom to prevent the nasty dents and bends by tie-wrapping a small piece of 1/4" square balsa to the boom in the area where a strike is likely to occur.

This is an old picture but you'll get the idea. The little 5" stick of balsa served me well while learning as evidenced by the blade mark on the balsa. The dent just visible underneath the balsa was before I installed the balsa protector.

Lance

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04-30-2004 10:57 PM  13 years agoPost 3
rbrown3rd

rrNovice

West Palm Beach, Florida

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Good idea Lance. I even considered trying to find stock aluminum tubing of the right diameter. Should be cheap in quantity. I am running Matt Shumacker's belt drive so all I need is the tubing. Wish I could find a source for it.

Bob

ps. Had a stock aluminum boom spare so I am back up and running again but waiting for a calmer day.

ps2. I am going to add the boom strike protector as you suggested.

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05-01-2004 05:06 PM  13 years agoPost 4
Helifool

rrVeteran

Rochester New York

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My carbon boom was the reason I cracked my chassis in a crash. It doesn't bend and absorb shock like an aluminum boom so it just transfered to the weakest link and that was the chassis,

I would say it only really helps with boom strikes. Just take it easy when flying. No need to push yourself in the beginning.

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05-02-2004 02:39 AM  13 years agoPost 5
rbrown3rd

rrNovice

West Palm Beach, Florida

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I have only flown 6 packs and I thought I was not doing very well since I have only been hovering and on the sixth flight I had this bad crash that broke the boom. Now I feel like I should stock up on booms at the rate I am going. That is why I asked if I could just buy tubing the right size and cut them off as needed. I was not kidding!

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05-02-2004 03:38 AM  13 years agoPost 6
KnimRod

rrApprentice

Central Michigan

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I never found any aluminum tubing in the right size. I found some tubing with the correct ID but the wall thickness was a little thicker and the ends would need to be turned down to fit the gearbox and crutch mount. I had heard that you can buy aluminum arrow shafts in the correct size (or close enough) but i never found any that would work.

I wouldn't sweat it too much. That little piece of balsa will save you a few booms and before you know it, you won't be banging up booms as often.

Lance

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01-15-2005 03:30 AM  12 years agoPost 7
Johnny

rrNovice

Hammondsport , New York

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Fixing a Bent Aluminum Boom

Here is a tip for straightening a bent aluminum boom of which I have done several times with great success. Go to your local hardware store and buy a piece of iron rod stock (no threads) that has the same outside diameter as the inside diameter of your boom. With a file, round off the rough edges on the end of the iron rod and then wipe a thin coat of oil on it. Then while holding the bent boom in one hand work the rod in and out of the boom, each time pushing it in a little farther. Sometimes you may have to tap it with a mallet. This works every time with a little patience. It only costs a couple of bucks and you now have the necessary tool to fix it the next time you bend another boom.

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01-15-2005 05:29 AM  12 years agoPost 8
rickyblaze

rrApprentice

Bloomington Indiana

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A 3/8" wooden dowel rod works also and they are availible at most hardware and craft stores

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01-15-2005 03:07 PM  12 years agoPost 9
KnimRod

rrApprentice

Central Michigan

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If you don't need an instant repair, tape up one end, fill boom with water, tape up other end, toss in freezer for a few hours. Boom will be straight and dent free. Caution though: If you leave it in too long, it'll split like an exposed copper pipe on a cold Michigan winter evening.

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01-26-2005 10:58 PM  12 years agoPost 10
telcobilly

rrNovice

The Woodlands, TX, USA

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Try the Chopper1 Ti boom. Supposed to be unbreakable! While you are ordering it, get his T/R gearbox, you WILL break the stock one (I have). His is made of Delrin and is supposed to be unbreakable as well. I plan to install this boom/gb when I get home on Friday.

Here's the link: http://www.chopper-1.org/

I'm trying to talk him into making a bomb proof LG..

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01-26-2005 11:20 PM  12 years agoPost 11
rickyblaze

rrApprentice

Bloomington Indiana

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I have the Ti boom,tail boom support and the gearbox. Very well made and Bret is a great guy to deal with. I wish I had these when I first started flying. If you have the belt drive tail he'll cut the back of the GB out for you also he'll leave out the stock drive wire bearings for a hollow tail for use with the belt drive tail. The Ti boom along with the tail boom support give the heli a solid sound,it's definately a different sound. I love it


Rick

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01-26-2005 11:32 PM  12 years agoPost 12
telcobilly

rrNovice

The Woodlands, TX, USA

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Ricky, what TR blades are you using? those look cool! Bill

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01-26-2005 11:45 PM  12 years agoPost 13
rickyblaze

rrApprentice

Bloomington Indiana

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They're made for the corona gas model,but if you have the belt drive tail you can use them. The stock tail rotor gear does'nt turn them fast enough.

Here's the link http://www.shopatron.com/product/pr...MC1-94610/113.0


Rick

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