Espritmodel.com Telemetry Radio
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Old Nov 29, 2008, 06:24 PM
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LittleG's Avatar
Raleigh, NC
Joined Jan 2007
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That'll be awesome... Where do you typically fly in Raleigh?
Quote:
Originally Posted by j.m.
LittleG,

My dad is letting me make a hotwire cutter, so maybe we could set something up...

I could probably hook you up with a couple sets of cores.
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Old Nov 29, 2008, 09:10 PM
Don't worry about it!
j.m.'s Avatar
Raleigh NC
Joined May 2008
1,368 Posts
Not doing too much flying right now...

All my planes are broke.

If I am flying, you'll see me at the AE Finley YMCA or the Leesville Elementary School athletic field.

Those big green monsters give me nightmares!
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Old Nov 30, 2008, 04:46 PM
AKA Captain Nifty
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Ontario, Canada
Joined Jan 2002
66 Posts
Gorgeous homebuilt! An inspiration indeed!!
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Old Dec 01, 2008, 07:49 AM
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Poland, Śląskie, częstochowski
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Thank You! I Appreciate yours appreciation. I wood be happy too build one to order.
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Old Dec 01, 2008, 09:15 AM
Don't worry about it!
j.m.'s Avatar
Raleigh NC
Joined May 2008
1,368 Posts
What kind of foam are you using?

And if you were to sell, how much would you ask?
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Old Dec 02, 2008, 06:08 PM
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Raleigh, NC
Joined Jan 2007
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Thank you for all your efforts in taking photos and posting them here... I really appreciate it.

Your sanded wings look just as good as those wire-cut ones... Sanding the wings must create a ton of foam dust.
Quote:
Originally Posted by pyrsly
This is about foam and sanding.
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Old Dec 02, 2008, 06:22 PM
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Quote:
Originally Posted by LittleG
Thank you for all your efforts in taking photos and posting them here... I really appreciate it.

Your sanded wings look just as good as those wire-cut ones... Sanding the wings must create a ton of foam dust.
yes it's messy bat taking photos was pure fun! I will post more pictures once i finish spar, reinforcement and glassing.
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Last edited by pyrsly; Dec 02, 2008 at 07:12 PM.
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Old Dec 03, 2008, 03:44 PM
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nice plane
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Old Dec 03, 2008, 05:44 PM
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Pensacola, FL, USA
Joined Dec 2000
3,235 Posts
Pyrsly,
Man, that is a fantastic shop.
I love to see pictures of creative clutter. Just like home for me.
I know a guy who paints the floor of his shop gray. He never makes anything!
Your DHL design .pdf is slick.
I see you also understand the advantage of CR2 cells. Rare!
Regards,
John255
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Old Dec 03, 2008, 06:50 PM
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Thank You for good word. CR2s ar full of energy and voltage is just right. shame that I can't find rechargeable. easy replaceable with 4x1/3AA 280-300mA NiMH witch can reach 5.5V fully charged bat lasts only fraction of CR2s. Presented plans can be improved by shortening boom by inch or two, les led in nose but smaller static margin. Main idea was to reduce yaw inertia by moving E/R servos to center section of wing, simplifying pod and shortening pushrods. In addition this layout allows stronger wing (center must be reinforced) and running pushrods on outside of pod. Here is more pictures.
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Last edited by pyrsly; Dec 03, 2008 at 07:03 PM.
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Old Dec 03, 2008, 07:21 PM
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Pensacola, FL, USA
Joined Dec 2000
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Pyrsly,
New wing looks great!
If you are adding lead with CR2's you may get much greater service with CR123 cells.
They are 6g. heavier than CR2, but have nearly double capacity (1550mA). Here is a link showing same cell in double package (CRP2) for $3.30.
http://www.calcellular.com/crp2-dl223.html
Good luck.
John255
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Old Dec 04, 2008, 07:25 AM
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Try this http://www.megabatteries.com/cat_fea...d=223&uid=1426
and this http://www.all-battery.com/polymerli...mah501638.aspx
220 mA in les then 10g
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Old Dec 04, 2008, 07:46 AM
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Pensacola, FL, USA
Joined Dec 2000
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Quote:
Originally Posted by pyrsly
Those are all rechargable cells. Most guys that have experience with CR2's would never go back to charging/cycling. Camera batteries are cheap, safer, and always ready.

So why are they safer? Every battery has a fairly flat current output but when the charge is used up you reach the "avalanche" point where the voltage drops quickly. I face the "avalanche" with some slight risk about every 22 flying hours. With typical small packs you may face avalanche every 1.5~2 flying hours. And that is if your charger has cut off at the right peak and the cells are really fully charged.

The CR123's are predicted to nearly double that time, but I'm still evaluating that.
Regards,
John255
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