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Old May 19, 2012, 05:40 AM
DIY Mania from Taiwan
Taiwan
Joined Aug 2011
2,020 Posts
V-Bat ARF from Thounder Tiger (Ace Hobby) maybe an another option for you,semi-symmetrical airfoil with tiplets for a rapid crisp roll-rate for exllent aerobatics,can be flown from a winch,off the slope,or with a GP-10 / BL motor and the supplied aluminium power pod is removable
Robbe have the same product that is identical with V-Bat far as I know.
bought the V-Bat 10 years ago from KL Malaysia on a biz.trip,and still flying the craft with a 500 grade BL motor on board
I'm very much satisfied with said durable balsa flying wing for my retirement RC life
cheers
Sam
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Old May 21, 2012, 11:35 AM
Registered User
Bradford West Yorkshire, UK
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Voodoo

http://www.rcgroups.com/forums/showt...o#post15736104

Regards Ian.
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Old May 21, 2012, 07:17 PM
Lapsus calami
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Joined Aug 2009
81 Posts
scalie flying wing?

The Voodoo is just it-and-a-bit for mine. Very nice bit of gear.

Someone gave me plans for a ~1.7m SZD-6 Nietoperz (Bat) from an old Brit RC mag (put it in such a safe place I can't find it). I think it's the old Keith Humber plan available from Traplet in two sizes.

http://www.rcgroups.com/forums/showthread.php?t=796750
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Old May 22, 2012, 05:42 AM
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Free plan in RC Model World December 2007, Undercarter.

Regards Ian.
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Old May 22, 2012, 10:19 AM
Just call me crash for short
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United States, OH, The Plains
Joined Jan 2011
1,697 Posts
Voodoo plans can be found here - http://www.outerzone.co.uk/plan_details.asp?ID=1859

Good looking ship and on my "to do" list.

This page here has several to look at as well - http://www.b2streamlines.com/OTW.html Look at the MB Raven and the Blackbird, both the 2m and the XC.

Mark
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Old Nov 13, 2012, 02:07 PM
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Bellevue, WA, USA
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Undercarter is correct. I can't spell Chippewa and will correct it on the Migisi plans. I'm not sure what he means by rationalizing the control surfaces. The surface areas were calculated based on the experience of Dave Jones and myself with quite a few plank designs. I know from my own work that flaps can be very effective on planks if properly located.

Migisi plans are free to anyone interested. They are in PDF format and can be printed full size on at reduced scale at any print shop with a wide format printer. I use Fedex.

If anyone can tell me the significance of the 662 in the name Migisi 662, I'll give a set of plans for The Little Plank III. Hint: mathematics, nature

Chuck Clemans
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Old Nov 13, 2012, 05:05 PM
Lapsus calami
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Good grief, Chuck! This is a real doozy . . . but after a bit o' geeking around:

The natural number 662 = 23rd integer in the Mian-Chowla sequence

Migisi = eagle (Ojibwe or Chippewa language)

Pic #662 in pmbell64's photostream is a Bald Eagle Haliaeetus leucocephalus

(I'm going to lay down now)
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Old Nov 13, 2012, 05:24 PM
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. . . and re my observation about control surface rationalisation; it's the first time I've come across the Migisi's flap configuration. I lay corrected and intrigued. Although I confess my aversion to 6 servo wings, I can see the point. I don't currently have a plank in my humble Luftflotte, the Migisi is earmarked and downloaded.
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Old Nov 13, 2012, 07:20 PM
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Quote:
Originally Posted by Undercarter View Post
Good grief, Chuck! This is a real doozy . . . but after a bit o' geeking around:

The natural number 662 = 23rd integer in the Mian-Chowla sequence

Migisi = eagle (Ojibwe or Chippewa language)

Pic #662 in pmbell64's photostream is a Bald Eagle Haliaeetus leucocephalus

(I'm going to lay down now)
Nice try UC, but no cigar. In my youth I was a mathematician, but I'm going to have to look up mian-chowla sequence. You're on the right track. Hint: it's part of a larger number.
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Old Nov 13, 2012, 07:27 PM
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Bellevue, WA, USA
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Quote:
Originally Posted by Undercarter View Post
. . . and re my observation about control surface rationalisation; it's the first time I've come across the Migisi's flap configuration. I lay corrected and intrigued. Although I confess my aversion to 6 servo wings, I can see the point. I don't currently have a plank in my humble Luftflotte, the Migisi is earmarked and downloaded.
The flaps are for spot landings or to dive out of lift without risking flutter. For sport thermal flying I prefer rudder/elevator for reduced roll inertia or elevons for simplicity. Thanks for the link to the great eagle picture.
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Old Nov 14, 2012, 10:32 AM
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United States, FL, Lehigh Acres
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Peck Polymers had their 59" w. s. Genesis there is one on here for sale now look in the trade section.
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Old Nov 14, 2012, 03:27 PM
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Final hint about the meaning of 662 in Migisi 662.

Hint: What's the planform of Migisi?

Chuck
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Old Nov 15, 2012, 08:42 PM
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Undercarter, where did you go?

The 662 in Migisi 662 is kind of a wink, wink, nudge, nudge sort of thing.

Migisi is a flying wing and is of the Plank or no sweep planform. The number 662 consists of the first three digits of Planck's constant!

Planck's constant = 6.626068 × 10-34 m2 kg / s

Chuck
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Old Nov 15, 2012, 11:36 PM
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I'm right here Chuck, sipping on a medicinal cocktail. It's just . . . I got nothin.

Thanks for the reveal . . . clever . . . the homophone solution.

STREWTH! You fly in air more rarified than mine. I'm not mathematician, physicist or aerodynamicist. Words are my realm and language my lover. I'll leave the clever stuff like quantum mechanics to you and the likes of my old man (RIP) - keepers of the secret knowledge. But I'll happily build and fly the product of your esoteric endeavours.

(Thinks; no wonder Chuck's into Nurflügels)
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Old Nov 16, 2012, 12:06 PM
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I was putting some thought into your challenge as well Chuck. Focused on the curve rather than the plane. Would never have made the connection to Max's surname. Fun stuff.
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