In any case, the increased weight and cost of larger span wings leads to diminishing returns as span is increased. Kroo (2001) points out that various tip devices may lead to incremental but important gains in aircraft performance but there are challenges in integrating such features with the total aircraft system. Constraints include increased wetted area and corner flow effects at junctions, increased weight and bending moments. Īdding vertical, or canted, extensions at the wingtip above and/or below the plane of the wing.Constraints include hangar, gate, taxiway, and runway width, increased structural weight of the wing, greater bending loads, and increased wetted area. However, the underlying concept is based on increasing the developed length of the wing, and this may be done in several ways: The wide range of alterations to the outboard tenth of wings of operational aircraft illustrates the variety of design choices possible. Postal address: HeartStrings, Jackie Erickson-Schweitzer, 53 Parlange Drive, Destrehan LA 70047-2133 USAĬopyright © 1998 - 2022 Jackie Erickson-Schweitzer - All Rights Reserved.A number of different wingtip treatments aimed at improving aerodynamic performance are discussed in NRC (2007). Sincerely, Jackie E-SĮmail address: 67 or 87 (toll-free in US) If you have questions or need assistance with purchasing or knitting my HeartStrings patterns, let me know. I am here to serve you and help keep your knitting a pleasurable experience. Return to Index of Jackie E-S Articles & Tips. If you aren't quite sure, continue on until you have done enough for a Blocking in Progress. If not, start over with smaller or larger needles, or even a different yarn. ![]() If everything looks all right, then proceed. Stretch it out a bit to open up the lace and get a sense of what the resulting fabric will look like. Stop after every few rows and take a moment to observe your knitting so far. This is the beginning of your shawl, but it is also a sample that can be easily redone if you mess up while you are first practicing, or things aren't working out with your chosen yarn and/or needles. ![]() ![]() Examples are Elegantly Simple Triangle Shawl HeartStrings designs for triangle shawls start at the lower back point or center back neckline or side tail with just a few stitches while you become familiar with your yarn and the stitch patterns. If you are dealing with an unknown yarn without an unlabeled or handspun yarn where suggested needle size is not available, you can use the Knitting Needle Gauge method to estimate a yarn label needle gauge as the the starting point, then go up 3 to 4 sizes from there.īased on the yarn type, you can also use my guidelines to select a needle size:įor lace weight yarn, use US 4 or 5 (3.5 – 3.75 mm)įor fingering weight yarn, use US 6 or 7 (4 – 4.5 mm)įor sport or DK weight yarn, use US 8 or 9 (5 – 5.5 mm)įor worsted weight yarn, use US 10 or 10½ (6 – 6.5 mm) Checking Your Work Thus, the increase of the needle size will allow the stitches to move more freely (but you don't want to increase the needle size so much that you get a flimsy fabric). But shawls are intended to have a drapier, flowing fabric than a body-fitting, firm fabric sweater. The reason for this is that yarn label gauge is typically for a sweater fabric. ![]() LENGTH FROM CENTER-BACK NECKLINE TO TIP OF TRIANGLEĢ4 - 30” shawlette or mid-length shoulder shawlĪ rule of thumb is to use needles 3 to 4 sizes larger than suggested on your yarn’s label. As a guideline, allow these approximate amounts: YardageĪmount of yarn needed will depend on the type of yarn you want to use, and the size shawl you want. Use these handy guidelines to help you estimate how much yarn is needed and what needle size to use. Triangle shawl designs in the HeartStrings pattern line are easy to adapt to using other yarn weight types than those specified in the original pattern. Triangle Shawl Guidelines Make the size triangle shawl you want in any of 4 yarn weights
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |