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Gohbee Aviation Stinger 30-90 > Can I used wooden blades on a 90?
 
 
shanee86
Senior Heliman
Location: Oklahoma City, OK, United States

Hello I was planning on like I always do buying woodys for my new Gohbee 90 but I went to the hobby shop and he said they don't sell wooden blades for a 90. I asked why he sayed 90's are to big for wooden blades or weight to much is that true? I have seen other with wooden blades I beleive. I just would perfer to put wooden on at first just in case something goes wrong at first wont cost as much.

My rc site shanesrc.com
09-30-2007 07:34 PM
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Zaneman007
Key Veteran
Location: Texas - USA

Here is my advice, you can take it or leave it. Keep in mind this is just my opinion, but..........

If you are even thinking about putting wood main blades on a 90, go buy a yourself a 50 or a 30 size machine.

I'd rather be flying
09-30-2007 07:58 PM
 
 
shanee86
Senior Heliman
Location: Oklahoma City, OK, United States

I already have a 30 size and I am getting my new 90 going and I have always used wooden bladea on my 30 so not sure?

My rc site shanesrc.com
09-30-2007 08:30 PM
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rcadd1ct
Elite Veteran
Location: Richardson, Texas

Here you go:

http://www.centuryheli.com/products...m?currentid=192


Too much mass spinning for wood IMHO.

Get some good quality CF blades and go fly.

When you get blades as big as a 90 size heli needs, they better be spot on. You cannot get the kind of consistency and balance you need with wood blades unless you spend a lot of time getting them right.

Then if they sit in the sun or stay mounted on the heli folded back in a hot car they will warp.

Again, get a set of CF blades and don't look back.

-RCA .......... Making Cuisinarts Fly!!!!!!!
09-30-2007 08:58 PM
 
 
shanee86
Senior Heliman
Location: Oklahoma City, OK, United States

The link you gave me is to wooden blades? I have seen someone else using aerotech blades but those are wooden?

My rc site shanesrc.com
10-01-2007 12:27 AM
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z11355
rrMaster
Location: 10000 is enough time wasted.

I think the point was 'you want wood? Here are some wooden blades'.

In reality, no one uses wooden blades in 90 class machines.

It's time to step up to carbon.
10-01-2007 12:50 AM
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rcadd1ct
Elite Veteran
Location: Richardson, Texas

Pretty much like "Z" said.

They say they are out of stock but I was trying to point out that they were out there.

You will save $50 by using them instead of getting CF blades. I understand you want them to test the heli, but if the cheap blades cause the crash, they have saved you nothing.

You probably have a lot of money tied up in this heli compared to the 30 sized heli. If you are trying to save $50 at this point, you need to sell it now.

You can get 2.5 gallons of 30% heli fuel for that $50. That is about 15 flights on a 90 class heli.

90 class helis eat money. They eat it when they fly and when they crash.

I am not trying to be negative, I am just trying to point out that when you almost have the heli flying and have a lot invested, don't skimp on critical pieces and risk the whole ship.

-RCA .......... Making Cuisinarts Fly!!!!!!!
10-01-2007 02:24 AM
 
 
Gohbee
Senior Heliman
Location: SC

I agree....woodies are not a good choice for a 90 size machine. That's why we don't carry them. In fact we recommend running the 600mm woodies for the 50 size machine only around a 1600rpm headspeed. If CF is not in the budget then a viable alternative would be fiberglass blades.

-David
10-01-2007 12:00 PM
 
 
shanee86
Senior Heliman
Location: Oklahoma City, OK, United States

Ok then what size carbon blade 690's or 680 or what I am either using a BME gass 90 or a OS 91 or something?

My rc site shanesrc.com
10-08-2007 12:44 AM
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rcadd1ct
Elite Veteran
Location: Richardson, Texas

I use TT 710's on my rap 90 SE with an OS 91 at the 7.92:1 ratio using a Curtis MPII.

Doing light 3D.

-RCA .......... Making Cuisinarts Fly!!!!!!!
10-08-2007 03:16 AM
 
 
shanee86
Senior Heliman
Location: Oklahoma City, OK, United States

Ohm 710 I think are for like a gasser heli witch is bigger then a 90. I am not sure they are right for a 90 probably to big they may work fine. But I would think smaller ones would be better for 3D etc. I seen alot using 690 or so. But I am not sure what is best?

My rc site shanesrc.com
10-08-2007 05:29 AM
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rcadd1ct
Elite Veteran
Location: Richardson, Texas

I use 800's on my gassers.

I use 680's on my x-spec, but the bolt to bolt distance is bigger than the bolt to bolt measurement on my rap 90 SE.

If I use 680's on my x-spec and 710's on my Rap 90 SE the rotor diameter is about the same.

I have seen people spankin' raps with anything from 680-710's.

Getting the engine setup and the gearing correct for the setup is the key.

-RCA .......... Making Cuisinarts Fly!!!!!!!
10-08-2007 05:36 AM
 
 
Wa11banger
Elite Veteran
Location: Huntsville, Al

90 sized helis can accomodate a wide range of blades from 680 to 710's easily. Some of it depends on weather and atmospheric conditions and some of it depends on what you want to do with the heli..

TT makes a great set of 680 woodies that will work excellent for what you want to do with them.. Just keep the HS down below 1700 and you will be fine.. Hell, you can even put on a pretty good aerobatics routine with woodies, just dont try any serious cyclic pumping 3D with them or you will go to your grave remembering the coolest most expensive noise you have ever heard..


Rick

Proud member of the Quick UK, Duralite Flight Systems, V-Blade, and KBDD teams
10-08-2007 06:30 AM
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Gohbee
Senior Heliman
Location: SC

As alluded to above.....the bolt center distance on the Stinger 90 head is wider than on the Raptor 90. Therefore you get the same disc diameter with 690mm blades on a Stinger 90 that you would get with 710mm blades on a Raptor 90. The Stinger 90 can run 710mm blades no problem....however, from the feedback that I've received it seems most guys doing aerobatics with the Stinger 90 prefer the 690's because they don't tend to bog like the 710's.

-David
10-10-2007 06:32 AM
 
 
rcadd1ct
Elite Veteran
Location: Richardson, Texas

For my reference, could you post the center to center measurement for the gohbee head.

THX.

-RCA .......... Making Cuisinarts Fly!!!!!!!
10-10-2007 01:47 PM
 
 
shanee86
Senior Heliman
Location: Oklahoma City, OK, United States

I am not sure but I am probably going to go with the 690's gohbee has on there site. I am wondering if they are good for 3D to though?

My rc site shanesrc.com
11-15-2007 04:42 AM
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TG540EDGE
Senior Heliman
Location: Texas

blades

get some radix 690 blades. they are great blades.

I came, I saw, I crashed!
11-16-2007 01:46 AM
 
 
shanee86
Senior Heliman
Location: Oklahoma City, OK, United States

I did I got me some 690mm Radix blades and will have this thing going soon I hope.

My rc site shanesrc.com
11-27-2007 04:11 AM
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Jerryc
Senior Heliman
Location: Oklahoma City

Quote 
Hello I was planning on like I always do buying woodys for my new Gohbee 90 but I went to the hobby shop and he said they don't sell wooden blades for a 90.

We dont...

Quote 
I asked why he sayed 90's are to big for wooden blades or weight to much is that true?

If you try to put junk blades or servos on a 90 size machine. your eventually going to end up with a pile of junk one way or another. and It can wind up being very dangerous....

Yes many other 60 and 90 class machines have run wooden blades. but you mentioned to me you wanted me to "set your heli up for upside down" and im sure you can bang the sticks with the best of em on your realflight.

Quote 
I have seen other with wooden blades I beleive. I just would perfer to put wooden on at first just in case something goes wrong at first wont cost as much.

If you take my advice and take it real slow (tail in hovering) let me help you set up your heli. and listen to my advice. there is no reason you should crash it. I believe your first crash occured with your hawk 30 when you were trying to show your family you could hover nose in when I dont think you were quite ready to do that just yet.

I know you can probably do it on the flight simulator. but theres a lot to be said for real world experience....

Jerryc
11-27-2007 06:56 AM
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JWatson
Veteran
Location: College Station, Texas

Shane,

I know that it has been done before, but Why do you want to put a gas engine in your 90??? It seems like such a waste.

What kind of preformance are you looking for, or do you just like tinkering with stuff?


Just wandering what you think the gas engine would give you that the OS would'nt? And trying to save you a major heartache and frustration.

Later,

JW

Jarrett Watson
CurtisYoungblood.com
11-28-2007 12:57 AM
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Gohbee Aviation Stinger 30-90 > Can I used wooden blades on a 90?
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