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Midland Helicopters . HeliProz . ZoomsHobbies

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Thunder Tiger Raptors 30-90 - Imperio > Raptor 90 Frame Stiffeners
 
 
marktustrc
Heliman
Location: UK-Oxford

Hi guys, i am going to produce some Carbon Fibre Frame Stiffener's instead of the normal standard metal ones. I need however an accurate drawing of the original frame stiffener so i can trim out my own. If anyone can supply me with a detailed 2d drawing of this i will send them some free Carbon Custom Frame Stiffeners. I work for an F1 team so this is possible to whatever thickness etc. i choose so will obviously be testing strength etc. to make sure they are as strong.

Regards

Mark Tustain

m.tustain123@hotmail.co.uk

04-20-2006 Over year old.
 
 
Yug
rrProfessor
Location: Niatirb Taerg

I've been wanting to do same but never got round to it. Sorry I ain't got any drawings but wouldn't mind buying a pair from you when you've got it sorted.
04-20-2006 Over year old.
 
 
marktustrc
Heliman
Location: UK-Oxford

If necessary all i need is someone to draw neatly around there's. Hole positons are quite important though obviously!!
04-20-2006 Over year old.
 
 
r60
Heliman
Location: Oxfordshire

frame stiffeners

hi mark
have got a set of frame stiffeners if you would like to loan them get in touch Noel.
04-21-2006 Over year old.
 
 
MattUK
Senior Heliman
Location: Lancaster, UK

Quote 
If necessary all i need is someone to draw neatly around there's.


The frames are quite thick, I would imagine they would be difficult to draw around accurately..especially around the holes, I dont think it can be done properly with a pen/pencil ?

Matt.

----
Light travels faster than sound. That's why some people appear bright until they speak.
04-22-2006 Over year old.
 
 
Yug
rrProfessor
Location: Niatirb Taerg

How about a photo. Then all you need to do is work out the correct hole positions from the CF frames.
04-22-2006 Over year old.
 
 
MattUK
Senior Heliman
Location: Lancaster, UK

How about putting the frames in a Flatbed computer scanner, those silver frames would show up real nice against a black background, and then you could print them to scale.

Matt.

----
Light travels faster than sound. That's why some people appear bright until they speak.
04-22-2006 Over year old.
 
 
Yug
rrProfessor
Location: Niatirb Taerg

Good idea.
I've been thinking about using carbon frame stiffeners for a while now. Perhaps it's time to get hold of a sheet of CF, whip my stiffeners off and set to with a dremmel.
04-22-2006 Over year old.
 
 
marktustrc
Heliman
Location: UK-Oxford

That's a good idea about the scanner, that would come out perfect.

Hiya Noel, cheers for the offer, do you have your contact details?
04-22-2006 Over year old.
 
 
heli_madken
Senior Heliman
Location: Liverpool, England

Hi,

I have been producing parts using a flatbed scanner for a while its very easy, just scan at 100% size and save as a .JPG, transfer to your CAD package (AutoCAD works well) and draw the outline from the image.

Print out and lay the part on top to check for accuracy and away you go!
04-22-2006 Over year old.
HOMEPAGE  
 
 
Raki
Heliman
Location: Morecambe Lancashire UK

personally i think the stiffeners are a waste of time especially if not used with the base plate-the radio crate is still free to flex,(grab the chassis at rear and radio crate then twist)granted the stiffness is improved around the motor mount but they dont help tie everything together.
ideally id like to see the motor mount extended down to the base plate with two holes tapped out underneath so bolts could be used to tie together from underneath,a extended ali stiffener could be used to same effect,
or a simpler option would be to make the replacement carbon stiffeners but make the bottoms longer with a 90 deg lip on bottom to enable it to bolt to base plate-aluminim angle or a similar mount could be made if not able to find/make the carbon with the 90deg section
Matthew-will you ever fly again?????????????????????
04-23-2006 Over year old.
 
 
G-Force Heli
Senior Heliman
Location: Ontario, Canada

Check out this base plate, it will allow engine removal without taking off the skids.

http://video.freevideoblog.com/vide...6f856c48c90.htm

06-26-2006 Over year old.
 
 
Raki
Heliman
Location: Morecambe Lancashire UK

thats the way to do it
06-26-2006 Over year old.
 
 
ESWLFSE
Elite Veteran
Location: Terra Ceia, FL USA

If one was to use CF stiffeners on a CF frame you may as well bond them on permanently and skip the screws.

Awesome baseplate SuperFatCat where can I get one for a 90?
06-27-2006 Over year old.
 
 
Yug
rrProfessor
Location: Niatirb Taerg

Nice one. That's kind of similar to what I did on the XeroG with the extra brace on the engine mount - sodding stiff
06-27-2006 Over year old.
 
 
G-Force Heli
Senior Heliman
Location: Ontario, Canada

This is a one piece cnc machined from billet aluminum for maximum strength. The base plate ties the whole bottom frame together including the engine mount.

The boom supports are relocated to the base plate giving the tail boom increased triangular strength.

06-27-2006 Over year old.
 
 
Airwolf crazy
Senior Heliman
Location: Lancaster, PA

Cannot find site

Greetings,

I went to www.gforceheli.com and they do not seem to exist. Is there a problem with their site? Are they atill around?

Christopher
06-27-2006 Over year old.
HOMEPAGE  
 
 
Yug
rrProfessor
Location: Niatirb Taerg

I would have thought carbon would be a better bet. I simply made up some right angle aluminium brackets that fitted between the base plate and the engine mounts. The weight is 49g including screws.
06-27-2006 Over year old.
 
 
G-Force Heli
Senior Heliman
Location: Ontario, Canada

The site is down for maintenance now. It will be back up soon.
06-27-2006 Over year old.
 
 
G-Force Heli
Senior Heliman
Location: Ontario, Canada

Carbon fiber up to 6mm have been test and still cracked with an accidental hard landing. The plastic frame has just too much flex for a CF base to work properly.

The aluminum base plate seems to take a beating and keep on ticking.

Also the plastic frames for the R50 evolved from an R30 with more or less extra plastic ribs. Engine power grew from a 30 to a powerful Hyper 50. The 500 gram Hyper50 is too much power for the plastic frame. By using a one-piece bottom plate, this solves the problem with the added engine brace.

The landing skids are also mounted in a separate holes. So hard landings will not distort the frame causing bearing damage.
06-27-2006 Over year old.
 
 
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Thunder Tiger Raptors 30-90 - Imperio > Raptor 90 Frame Stiffeners
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