Sixpence Mk2 (oz1582)
About this Plan
Sixpence Mk 2. Radio control micro-glider model. Rudder and elevator soarer for piggyback launch. Wingspan 564mm. Note both this plan and the single channel Sixpence Mk.1 (oz5650) appeared in the same article "Micro Gliders", along with details of the piggyback launch mechanism.
Quote: "Sixpence Mk. 2
Wingspan - 564 mm
Weight - 100 to 130 gms
Controls - Rudder/Elevator
You like things a bit hotter? Okay but don't even bother to rig this little plane if the wind is light. If there's a fair blow then the fun really starts.
Fuselage - As Mk. 1 but with an additional elevator servo. Ply Nose reinforcement. The release pin is as on Mk.1, but is coupled to the elevator.
Wing - Built up rib/spar construction, polyhedral, Clark Y or similar wing section, banded on.
Tailplane - Conventional. The pushrod is 0.6 mm steel wire running in a bowden cable inner tube (Graupner Bowden cable). The horns are cut from thin ply and the surfaces are tape hinged.
Flying. The control surfaces are quite generous, and control travels should be kept small for the first few flights in the interests of safety. Large movements in conjuction with the polyhredral wing give direct and slightly vicious response. The model is slightly tamer with the Mk. 1 wing.
R/C System Micro R/C components are not that easy to obtain, and are also, unfortunately, expensive. This does spoil the fun of micro flying a bit unless you are prepared to allow a slight compromise in the matter of size and weight.
Personally I prefer to use Becker 5-100 servos (14 gms) and receivers made by Becker (8 gms) and Eckhardt (12 gms). However, if you inflate your Sixpence slightly from the size shown here, standard micro receivers and servos (Webra, Multiplex, Futaba, Canon, Simprop ) can be squeezed in. Please bear in mind that micro models are not intended for beginners..."
Quote: "Two channel micro glider for piggyback launching or slope soaring. A great flyer when it first appeared in the early 1990s, would be perfect for todays micro radio gear. Designed by top German small model specialist Horst Fenchel."
Sixpence Micro Gliders, Quiet Flight International, August 1994.
Update 01/05/2018: Replaced this plan with a clearer copy, thanks to Circlip. Also added article, thanks to RFJ.
Direct submission to Outerzone.
Supplementary file notes
Article.
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-
(oz1582)
Sixpence Mk2
by Horst Fenchel
from QEFI
1994
23in span
Glider R/C
clean :)
all formers complete :)
got article :) -
Found online 23/12/2012 at:
http://www.hippocketaeronautics.com/hpa_plans/details....
Filesize: 252KB
Format: • PDFbitmap
Credit*: rebelVHS, Circlip, RFJ
Downloads: 3856
Do you have a photo you'd like to submit for this page? Then email admin@outerzone.co.uk
User comments
Do you want a photo for the Sixpence MK2? The nose has a minor mod, but the rest is right off the plan. My first scratch build and made totally from scrap I've gathered over the years.LouSindor - 10/10/2014
Hi, Some photos [pics 005-007] taken on holiday, slope soaring on a beach dune on Australia’s NSW south coast, that may be of use for your excellent site. However, classification may be difficult. The fuselage is Sixpence Mk II (with simpler nose and larger rudder), though the wing is Sixpence Mk I. This glider was built for a piggy-back launch project but is great for packing away on holidays. My second Sixpence, having built a Mk II almost 20 years ago from the QFI magazine article. Servos have become much smaller since then! Cheers,
Graham Moss - 25/04/2022
Hello Graham, hello together,
my friend Barry sent me the link to this page and I´m thrilled to see that my old Sixpence design is still inspiring modelfliers. In 2022, small and very light gliders (like the UMX "Whipit") are the stuff I´ve been dreaming of in the 80ies. Especially the radio gear has got amazingly small and light since those days. For my Sixpence, I used Becker servos, 4x50 mAh nicads and a homebuilt rx, making a total weight of ca. 60 grams just for the radio gear.
The flying weight of the "Whipit" is 44 grams.
If I´d build a MK 3 Sixpence today, it would be 2ch, maybe even with ailerons instead of rudder.
The MK1 was designed around the radio components. The idea with the self-release piggyback system came later and turned out to work perfectly fine. I´ll try to pass some more photos to the administrator.
Thank you for your interest in my "Sixpence";
blue skies and happy landings always,
Horst Fenchel - 02/09/2022
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- Sixpence Mk2 (oz1582)
- Plan File Filesize: 252KB Filename: Sixpence_Mk_2_oz1582.pdf
- Supplement Filesize: 919KB Filename: Sixpence_Mk_2_oz1582_article.pdf
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Notes
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