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BID FIBERGLASS 38" RA7725/38W F16

$8.95/Yard
Part# 01-00642
MFR Model# RA7725 F16

Overview

Note: 38" wide. Sold by the yard

The most basic structural material in building a composite aircraft is glass cloth. The use of glass in aircraft structures, particularly structural sandwich composites, is a recent development. Glass cloth is available commercially in hundreds of different weights, weaves, strengths and working properties. Very few of these, however, are compatible with aircraft requirements for high strength and light weight. Even fewer are suitable for the hand-layup techniques developed by Burt Rutan for the homebuilder. The glass cloth featured here has been specifically selected for the optimum combination of workability, strength and weight.

Two types of glass cloth, a bi-directional cloth and a uni-directional cloth are used. BID cloth has half of the fibers woven parallel to the selvage edge of the cloth and the other half at right angles to the selvage, giving the cloth the same strength in both directions. UND cloth has 95% of the glass fibers woven parallel to the selvage, giving exceptional strength in that direction and very little at right angles to it. BID is generally used for pieces which are cut at a 45° angle to the selvage, a bias cut, which enables the builder to lay BID into contours with very little effort and provides the needed shear and torsion stiffness for flying surfaces. UND is used in areas where the primary loads are in one direction, such as wing skins and spar caps. Multiple layers of glass cloth are laminated together to form the aircraft structure. Each layer of cloth is called a "ply".
   
California Prop 65 Warning Symbol

WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.

Specifications

Uni-Directional:
  • 7 oz 38" Width Threads per inch
  • Construction: 80 Warp Tow Count X 18 Fill Tow Count

Bi-Directional:
  • 8.8 oz 38" Width Threads per inch
  • Construction: 54 Warp Tow Count X 48 Fill Tow Count

Reviews

No wonder this is the standard. Drapes just right and wets out easily with aeropoxy

Steve H Verified Purchase

BID FIBERGLASS 38" RA7725/38W F16

March 14, 2024

Ron L Verified Purchase

BID FIBERGLASS 38" RA7725/38W F16

November 7, 2023

Now to get into the build. Thanks Aircraft Spruce

Mike M Verified Purchase

BID FIBERGLASS 38" RA7725/38W F16

December 24, 2022

Excellent product, very well wrapped and shipped

Mark D Verified Purchase

BID FIBERGLASS 38" RA7725/38W F16

February 3, 2022

Got it on time

Raymond P Verified Purchase

BID FIBERGLASS 38" RA7725/38W F16

December 15, 2021

BID, hey, it is what it is. Order was filled and sent promptly, rolled, sealed in plastic, and outer wrapped in paper.

A. J Verified Purchase

BID FIBERGLASS 38" RA7725/38W F16

July 29, 2021

Just as it should be

Keith S Verified Purchase

BID FIBERGLASS 38" RA7725/38W F16

June 16, 2021

I ordered this cloth to be shipped folded, against the advice of AS, but there was no harm.

Edward S Verified Purchase

BID FIBERGLASS 38" RA7725/38W F16

June 12, 2021

Aircraft Spruce took extra care to make sure the fiberglass was placed on the roll without disrupting fibers and protected it very well so it wouldnt get damaged during shipping. Great job!

Bernie N
January 3, 2021

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Dasdas D
December 12, 2020

Q&A

Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: Can I buy it by the roll? If so how much is on a roll, and is there a discount?

You can buy by the roll. The roll is approximately 125 yards. 15 percent discount kicks in at 500 yards.

Q: What is the thickness of each of the two Rutan fiberglass cloths?

The thickness of the unidirectional cloth (01-00641) is 0.19 mm. The thickness of the bidirectional cloth (01-00642) is 0.23 mm.

Q: What is the thickness of each of the two Rutan fiberglass cloths?

The thickness of the unidirectional cloth (01-00641) is 0.19 mm. The thickness of the bidirectional cloth (01-00642) is 0.23 mm.

Q: What is the per yard weight of each of the 2 types of rutan fiberglass cloths?

The uni (p/n 01-00641) is approximately 7.0 oz / yd. The bid (p/n 01-00642) is approximately 8.8 oz / yd.

Q: What is the correct weight per square yard of PN 01-00642? What is the strength of each of these cloths? Warp and Filling?

Part number 01-00642 is 8.8 oz/yd. The breaking strength of P/N# 01-00642 is warp- 440 lbf/in,Filling- 366 lbf/in. P/N# 01-00641 is warp- 650 lbf/in, 70 lbf/in.

Q: Regarding part # 01-00641: Is this E glass or S-2 glass?

This is uni-directional E-Glass.

Q: What is the correct adhesive to use with this fiberglass cloth for a structural layup?

You can use Aeropxy Strucural Adhesive Part # 01-00295.

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