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Hello there. I'm a paragliding pilot. I don't have paragliding. I wanted to have one. there is one now. I enjoy flying it and it's fun. I finished two and we will team up with friends. thank you so much |
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Lazy man's paramotor
Sorry, but i am just plain lazy I guess. I bought my parachute off of wish for $16 dollars and did some mods to the AoA (angle of attack) and designed a printed a twin motor gondola with safety breakaway carriage (cable tie connection) and put in a 1300mah 3s for 8 to 10 minute flights. Here is a video compilation of one mornings flights that I took with my phone while almost literally flying with one hand. It is a very simple assembly after the print and anyone interested in the directions for the wing alterations or for the files to 3d print the gondola , is more than welcome to them. If necessary, I can start a new thread on it if I get enough people interested. Here is a video from my youtube channel for your reference.
Have a good one, Bob of the Bush (cause that is where my models usually end up) Moto : "I fly my aircraft like I cook my meat...low and slow!"
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All the information you need is in the first post in this thread.
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KSMason,
Hi I really enjoyed watching your Videos ( still) watching. I fly RC gliders and RC prop planes. Discover this thread, I will probably invest in a few kits first. I can see down the road maybe trying to build a wing myself. Have to wait for all these fires to stop here on the west coast. Here in Sacramento the air quality is bad so wife said no RC flying for while. So with time on my hands discover this aspect of the hobby. First thing thing first buy kit learn how to fly these models. |
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Lutefisk Powered Paraglider Wing Project
A PROJECT IS BORN:
Purchased 110 yd roll of 0.5 oz white ripstop nylon and red 3/4 oz ripstop fabric for a special project. Plenty of material to build a Lutefisk wing , and bigger wingsr. Half ounce ripstop nylon material is no longer made. |
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Last edited by Supedupersauce; Sep 12, 2021 at 12:40 AM.
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Lutefisk Powered Paraglider Wing Project - Sewing the Wing (Part 1)
LUTEFISK WING:
Fabricated Lutefisk wing with sewn pink and blue plastic rib siffiners. Stiffners cut from Oxford Twisted Twin plastic pocket folders found in school supplies area of your local store. Added red fabric to LE center panel and at wingtips for contrast. Colored plastic rib stiffeners add additional color and contrast. A clean and simple color scheme fabricated using white 1/2 oz. and red 1.0 oz. ripstop nylon used for kite making. Opale wings are made from 20D (Denier) fabric which is similiar in weight. LE/TE seam allowance doubled to allow rolling edge over twice to fully enclose nylon binding tape in sewn seam with 1 row of straight stitching on rear edge. SEWING: According to The Parachute Manual Vol. I used by Parachute Riggers, fabric stitching should be 7-11 stitches per inch. Use lower end of range at 7-8 stitches per inch on this light weight fabric to reduce pucker of sewn seams. Stitching at higher range of 10 or 11 stitches per inch is too high, as it puckers the fabric and weakens it by punching needle holes too close to each other (as stated in The Parachute Manual Vol. 1). Used size A/B polyester thread with a No. 16 sewing machine needle. Size 14 to size 16 needle is recommended for 3/4 ounce riptstop fabric according to Kiting 2015 Magazine PDF article (Masetring Nylon page 48) below. Consult your sewing machine manual to learn how to adjust the top and bottom threads with equal tension. Learn to adjust stitch length on your sewing machine and practise sewing until you can get the stitches per inch you want as measured with a ruler. Practise sewing on scrap material (single and multiple fabric layers) until you can have the lockstitch thread lock in the middle of the fabric (not on the top or bottom piece of fabric). Properly adjusted thread tension greatly reduces fabric puckering of sewn seams. Marking fabric with lead or colored pencil allows marks to fade over time. Marking with black Sharpie is permanent and doesn't fade. BASIC SEWING TUTORIAL: (Andre Bandarra Paragliding YouTube Channel)
Entire build process is made easier by marking rib/panel number on masking tape and placing marked masking tapes on each rib/panel. When wing is completely sewn/constructed, the masking tape lables are easily removed. REFERENCES: The Parachute Manual Vol. II used by Parachute Riggers covers ram-air gliding parachutes. Ram-Air Gliding Parachute Design Paper by Steve Lingard: https://www.aerodecelerator.com/pdf/Lingard.pdf The Parachute Recovery Systems Design Manual book by Theo Knacke is a more technical reference on parachutes. https://apps.dtic.mil/dtic/tr/fulltext/u2/a247666.pdf Design and Testing of High Performance Parachute Systems: https://www.sto.nato.int/publication...ARD-AG-319.pdf FAA Parachute Rigger Manual PDF book for basic sewing machine setup, sewing, parachute design and construction. https://www.faa.gov/regulations_poli...rh_change1.pdf FAA Powered Parachute Manual PDF book: https://www.faa.gov/regulations_poli...e_handbook.pdf MATERIAL/HARDWARE VENDORS: (Small quantity orders of parachute fabric and hardware from companies in the United States) ParaGear Equipment Company: https://www.paragear.com/ DJ Associates: https://www.dj-associates.com Kites and Fun Things (Icarex ripstop polyester fabric@ $16.50/yd for 5 yd or more): https://www.kitesandfunthings.com/Pr...1__ICAREX.aspx Into The Wind Kite Store (3/4 oz. ripstop nylon fabric @ $11.50/yd): https://intothewind.com/kitemaking/fabric.html Fly Market Kites: (3/4 oz. Paratex/Chikara/Mirai/Texlon ripstop fabric from $7.00 to $15.00/yd) https://www.flymarketkites.com/34-oz-ripstop-nylon Fly Market Kites: (1/2 oz. Icarex polyester ripstop fabric @ $15.00/yd) https://www.flymarketkites.com/clear...stop-polyester Texlon Corp. Kite Fabric: (3/4 oz. Texlon ripstop fabric uder $5.00/yd with 10 yd min order): http://www.texloncorp.com/kite.html SailRite: (1/2 oz. white ripstop nylon fabirc @ $15.95/yd. and portable/insdustrial sewing machines): https://www.sailrite.com/Ripstop-Nylon-5oz-White-60 WING STUFF BAG: Photos of wing and drawstring stuff bag. Stuff bag made from 1.35 oz SoarCoat ripstop nylon with silicone coating used to manufacture skydiving parachute wings. Sewn stuff bag dimensions are 8 x 15 inches flat. Wing folded to one panel width and folded in half from LE to TE is 6 x 11 inches in the bag, with final bag dimensions of 6 x 14 inches to top of drawstring. LUTEFISK WING SPECIFICATIONS Wingspan: 7.74 ft ( 92.91 in / 2.36 m) Chord: 1.83 ft (22.0 in / 0.56 m) Area: 11.83 ft2 (1.09m2) Apspect Ratio: 5.10 Number of Cells: 23 RECOMMENDED FLYING WEIGHT: (1) Lutefisk Wing: 1.5 kg (3.3 lb) to 3.0 kg (6.6 lb) (2) Opale Power 1.1 Wing: 1.0 kg (2.2 lb) to 3.4 kg (7.5 lb) Wing Loading at 0.5 lb/ft2: (5.9 lb / 2.7 kg) WING LOADING: Suspended Weight in lb Divided By Wing Area ft2 Lutefisk Wing: 3.3/11.84 = 0.27 lb/ft2 and 6.6/11.84 = 0.56 lb/ft2 Opale Wing: 2.2/11.84 = 0.19 lb/ft2 and 7.5/11.84 = 0.64 lb/ft2 WING MODIFICATION FOR THIS PROJECT: NOTE: Lutefisk wingtip dimension modified with additional 3/8 inch folded edge seam over/under wingtip edge. Note 4 wingtip line loop attachments instead of 5 as shown on Lutefisk plans. Nylon binding tapes and nylon binding tape line loops make wingtip area stiffier. Refer to line attachment diagram of Opale Wing Manual PDF (page 8/11) below to see this wing only has 4 wingtip line attachment points. Note 3/8 in nylon binding tapes sewn into LE and TE seams, as well as nylon tapes sewn to ribs for line attachments. Sewing nylon tapes to ribs during construction of rib/ wing panels is much easier. LE nylon tape line attachment sewn into panel/rib seam is much easier than trying to sew line loops after wing is contructed. Nylon tape loops (line attachment points) on ribs are easily sewn without puckering fabric compared to zig-zag stitching line loops. Line loops are very tedious to mark/cut/sew compared to simple fold/sew flat tape line loops. Construction resembles that of full size paraglider wing techniques. NOTE: Line loops can also be sewn to rib just behind LED seam before sewing ribs to wing panels. RC POWERED PARACHUTE HISTORICAL REFERENCE: Before rc electric powered paragliders there were rc powered parachutes from late 1990's with nitro fuel size 0.48 glow engines. Lutefisk Wing is similar in size to Airfoil Aviation (out of business) 1/4 scale powered parachute double skin ram air parachute wing. Wing is a Megafoil 7 double skin traction parafoil kite Wingspan = 88.8 in (7.4 ft) Chord = 24 in (2.0 ft) / AR = 3.7 / Number of Cells = 24 (NOTE: sold by Into the Wind Kites for $108.00 / see photo below of kite catalog for this wing - no longer sold )
1/4 Scale Airfoilaviation rc powered parachute kit sold on rc forum in 2016 for $200. Original kit sold for $219.95 from Airfoilaviation. Complete kit with radio and engine sold for $445.95. https://www.rcgroups.com/forums/show...ered-parachute AirfoilAviation 1/4 Scale Powered Parachute Tricycle on SkiIs Flown with an Opale 1.0m2 Oxy Paraglider Wing: (NOTE:Stock AirfoilAviation powered parachute tricycle at bottom right foreground of video with modified hang bar for paraglider wing) ** Tricycle is lighter trike as predomomately made of wood and 1/4 in. dia. hollow aluminum tubing **
Airfoilaviation archived website from the Wayback Machine 2010/2011: Main Website Page: https://web.archive.org/web/20110212...laviation.com/ 1/4 Scale Model: https://web.archive.org/web/20101222.../1-4scale.html More to come.....Blue Skies! ImagesView all Images in thread
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Last edited by Supedupersauce; Sep 12, 2021 at 12:37 AM.
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Looks great!
Well done and thanks for the details! |
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