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Old Jan 14, 2008, 05:37 AM
Registered User
France, Nantes
Joined Jan 2008
12 Posts
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Cirrus F3p

Hello all,
This is my plane for F3P

WS: 82cm-32.3"
Length: 89cm-35"
WA: 15,4dm²-238 sq. in
AUW: 120g-3.86 oz
I hope next will be 95g-3.05 oz

Motor: MicroDAN F3P 29T
Controller: Phoenix-10
LiPo: 2S 250mAh Fullriver
Receiver: MPS V2.5 JST
Servos: 3xBMS-306BB

Last video here-> Vidéo
Inter sequence isn't good because that was the end of the batteries, there was not enough power to climb.

Plans available here->Plans _PDF+DXF
TRY IT!!!!

Anthony
PS: Sorry for my poor English
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Old Jan 14, 2008, 06:46 AM
Model Designer
keven64's Avatar
United Kingdom, England, Burnley
Joined Apr 2001
5,495 Posts
820mm and only 120g ?!?

Anthony,

Il n'y a rien mal avec votre anglais !
( I wish my French was as good ! )

You model looks GREAT - C'est magnifique !
Is ALL that foam 3mm depron ?

I like the longer models with lines that look similar to the larger
engine-powered pattern models.
The F3P models I have lately been designing have similar proportions...

Your closed-loop ailerons are VERY impressive - similar to how the Fokker E-III wings were warped - but with fewer pylons !

What are you using for your closed loop 'cables' ?
Can you adjust their tension ?

Keven.
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Old Jan 14, 2008, 07:51 AM
Registered User
France, Nantes
Joined Jan 2008
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Keven,
The exact name of the foam I'm using is Climapor, significantly lighter than Depron about 25%.
My cables are made of steel thread and kevlar scabbard.
Yes I can adjust the tension because the cables are not glued.
They are kept in place by "jubilee clip" (I don't know if it is comprehensible in english)

Anthony
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Old Jan 14, 2008, 07:53 AM
www.gobrushless.com
North Carolina
Joined Jan 2005
1,564 Posts
That was very nice work in the video...well done
Dan
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Old Jan 14, 2008, 08:25 AM
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keven64's Avatar
United Kingdom, England, Burnley
Joined Apr 2001
5,495 Posts
Anthony,

In England, "Jubilee Clips" are what are used to hold water pipes to the engine and radiator under a car bonnet...
What you have are referred to here in the UK as 'crimped cables'.

Thank you for the information...
Where can I get some Climapor ?

A Google search returns very little of any use...
Have you an internet address for the shop where you got that which you are using ?

Keven.
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Old Jan 14, 2008, 08:33 AM
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keven64's Avatar
United Kingdom, England, Burnley
Joined Apr 2001
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Anthony,

I was wondering about the thickness of the foam that you have used - it looks to me to be 3mm.
That light weight ( moins du poids ? ) is excellent - for 3mm depron - and so it is not a surprise you have used something else...

Keven.
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Old Jan 14, 2008, 08:37 AM
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matchlessaero's Avatar
Tennessee/Mid-South US
Joined Mar 2002
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Tres bien Anthony!
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Old Jan 14, 2008, 11:46 AM
Registered User
France, Nantes
Joined Jan 2008
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Thank you for compliments.
Sorry I don't know where you can buy that foam in England, I don't buy it on internet. You can try to search "Extrupor" it's very close if it's not the same as Climapor.
Yes the foam is said to be 3mm but it's 2,75mm

Anthony
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Old Jan 14, 2008, 12:21 PM
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richard boyd's Avatar
Northern Ireland
Joined May 2006
1,212 Posts
Anthony , your Cirrus F3P plane is very beautiful . My own plane the Swift looks very alike your plane and the measurements are also very close . My ready to fly weight is 141g this is with a 20g EVOLITE battery . You have doNe a great job in getting your Cirrus weighing 120g and it flies so graceful ! again well done and may you have many many flights .

Richard
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Old Jan 14, 2008, 12:22 PM
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Dr Kiwi's Avatar
Chattanooga, Tennessee, United States
Joined May 2003
27,197 Posts
Quote:
Originally Posted by keven64
Anthony,

In England, "Jubilee Clips" are what are used to hold water pipes to the engine and radiator under a car bonnet...
What you have are referred to here in the UK as 'crimped cables'.

Thank you for the information...
Where can I get some Climapor ?

A Google search returns very little of any use...
Have you an internet address for the shop where you got that which you are using ?

Keven.
Thank goodness someone else knows what a "Jubilee clip" is. For over 20 years now, I have been the butt of derisive comments from "friends" in Maine, because back in 1984, the first time I went to repair some water pipes on our summer island, I asked for Jubilee clips to assist my Heath Robinson repair - hoots of laughter at my kiwiism ... and they still remind me of it, every single year!
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Old Jan 14, 2008, 02:23 PM
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keven64's Avatar
United Kingdom, England, Burnley
Joined Apr 2001
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Anthony,

Thanks for the pointers... I searched again... using "Extrupor". Only Czech websites with vague references to 6mm - and car rentals...

I have lots of different foams - but neither of those you named.
I think I'll try something with 2mm depron - for now...

Keven.
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Old Jan 23, 2008, 07:57 AM
Fly lower!
aerolite's Avatar
West Texas
Joined Jan 2005
2,391 Posts
Anthony,

What is the CG you are using on the plane in the video. Looks like a winner! This will be my next F3P build.

Also wanted to know if you are using any 3mm x .05mm flat carbon on the trailing edge, or any kind of spar besides the underwing bracing?

What size CF is used for the wings?

Thanks for the design.

Mini Ifo
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Old Jan 24, 2008, 07:16 AM
Registered User
France, Nantes
Joined Jan 2008
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Mini Ifo,
I think CG is a personal choice, to have a neutral behaviour 27-28cm (10,6"-11")
from the nose is a good start.
For wings I use only 1mm carbon rods as you can see on photos.
Many plans have been downloaded, I hope that you are not the only one to begin building.

Anthony
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Old Jan 24, 2008, 07:53 AM
Fly lower!
aerolite's Avatar
West Texas
Joined Jan 2005
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Thanks anthony,

I seriously doubt that I'm the only one building.

We may even do a club build of your model to introduce others to the joys of indoor flight, if you don't mind. The new folks need something easy and slow, and the F3P planes are perfect!

Mini Ifo
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Old Jan 24, 2008, 09:28 AM
Registered User
France, Nantes
Joined Jan 2008
12 Posts
Of course I don't mind.
I think CIRRUS is a good choice to start F3P, french constructors say me that it is very easy to fly.
I am impatient to see photos and videos.
What setup will you use?

Anthony
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