Quantcast BALSA WOOD CORE

Share on Google+Share on FacebookShare on LinkedInShare on TwitterShare on DiggShare on Stumble Upon
Custom Search
 
  
BALSA WOOD CORE.—The repair shown in figure 14-17 is used when no gain in structural strength is desired, and it is only to be used for sealing holes of 1 square inch or less in external surfaces. The damaged area (1) should be cut out to a smooth circular or rectangular shape. A 3/8-inch minimum radius (2) must be provided at the corners of rectangular cutouts. NOTE: This information applies to all repairs made to balsa wood core panels. In cutting out the damaged area, you must take care not to separate the metal faces from the core. You can accomplish this by using a very fine-toothed coping or hacksaw blade for straight cuts, and cylindrical saws (hole saws) for cutting holes or rounding corners. After the damaged section has been cut out, file the edges smooth by using a fine cut file only. Then, inspect the area (3) for separation of the skin facing from the balsa wood core. If the facing has separated from the core, rebond the two surfaces, using the procedures outlined in the previous section on skin separation. Then, complete the repair by using the approved filler material and two fabric patches, as shown in (4) and (5) of figure 14-17. Figure 14-18 shows one flush-type balsa wood core repair that is used on puncture damages larger than 1 inch. To make this type of repair, cut out the damaged area (1) as previously described. After the damaged area has been cut out (2), cut back the inner metal face 1 inch and remove the core material. See (3) of figure 14-18. Inspect for adhesion of the face to the core, and seal the exposed filler material to prevent the entry of moisture. Lay out the required rivet pattern and drill pilot holes in the panel. See (4) of figure 14-18. NOTE: The rivet size, rivet spacing, and number of rows of rivets are given in the appropriate repair section of the applicable structural repair manual. Next, prepare two patch plates; a wood, plywood, or phenolic tiller; and a metal filler. See (5), (6), and (7) of figure 14-18. The outer patch plate should fill the hole in the core, and the inner patch plate should overlap the hole in the core approximately 1 inch for each row of rivets. Figure 14-17.—Balsa wood repair with filler plug and fabric patch. Locate the patch plates and wood filler. Using the pilot holes in the panel as a guide, drill pilot holes through the patch plates and wood filler. The patch plates and wood filler are then bonded to the panel using the specified adhesive. Next, locate the metal filler, and drill pilot holes through both patch plates and the wood filler. All pilot holes are then size drilled and machine or press countersunk, as applicable. Complete the repair by installing the specified rivets. See (8) of figure 14-18. 14-16



Aviation News
A smarter view: Airbus looks into the future on the A330 final assembly line with “connected” glasses
Airbus is demonstrating its pioneering spirit to build the world’s...
airbus.com
Australia’s Ferra Engineering to Provide Initial Production for Triton UAS
Northrop Grumman MQ-4C Triton. Photo: Northrop Grumman [Avionics Today 07-31-2015]...
aviationtoday.com
Insitu Wins Contract to Build Six RQ-21A Blackjack UAS for US Navy
RQ-21A Blackjack UAS. Photo: Navair [Avionics Today 07-31-2015] Insitu has...
aviationtoday.com
U.S. National Honors for CH-46 Tomorrow
The Smithsonian National Air and Space Museum will honor the...
aviationtoday.com
Embraer, Bombardier See Delays, Depreciation and Market Softness in Q2
[Avionics Today 07-31-2015] Second quarter 2105 earnings for both biz...
aviationtoday.com
DOT Celebrates 25th Anniversary of ADA
A look at our recent past and a peek into...
faa.gov
Four Corners of the Country
July 30- The July/August 2015 issue of FAA Safety Briefing...
faa.gov
UH-X Order Could Boost 412 Commercial Sales
Japan’s order for 150 military versions of Bell Helicopter’s 412EPI...
aviationtoday.com
Australian Air Force Acquires First Boeing Growler
Amazon’s rendering of a segregated UAS airspace. Photo: Amazon [Avionics...
aviationtoday.com
Northrop Grumman CEO Looks to UAS to Grow Revenues
[Avionics Today 07-29-2015] Northrop Grumman Chief Executive Officer Wesley Bush...
aviationtoday.com
Engility Wins Contract to Support US Air Force GPS
[Avionics Today 07-28-2015] The U.S. Air Force has awarded TASC,...
aviationtoday.com
US Navy Awards Harris Corporation $29 Million Avionics Contract
F/A 18 Super Hornet. Photo: Boeing [Avionics Today 07-28-2015] The...
aviationtoday.com
First Bell 525 Delivery Slated for 2017
The 525 Relentless won’t be delivered to its first operators...
aviationtoday.com
Australian Military Training System Approved for Airbus Helicopters H135
Airbus Helicopters has achieved Factory Acceptance of HATS01, the first...
aviationtoday.com
Airbus Helicopters H135 Receives Factory Acceptance for HATS
Airbus Helicopters has achieved Factory Acceptance of HATS01, the first...
aviationtoday.com
Rockwell Collins Sees Softening Aftermarket Amid Rising Connectivity
Rockwell Collins connectivity segment looks to offset other market softness....
aviationtoday.com
Harris and CPqD to Monitor CNS Systems for Brazilian Air Force ATC
[Avionics Today 07-27-2015] Brazilian Air Force Air Traffic Control (ATC)...
aviationtoday.com
Harris Exec Outlines Electronic Warfare Strategy
Andy Dunn, vice president of business development at Harris. Photo:...
aviationtoday.com
Northrop Grumman Lays Out Fifth Generation C4ISR Framework
[Avionics Today 07-24-2015] Northrop Grumman Corporation has set out a...
aviationtoday.com
New Technologies to Boost Future Military HUD Sales
[Avionics Today 07-24-2015] A new Technavio report on the Head-Up...
aviationtoday.com


Privacy Statement - Copyright Information. - Contact Us

Integrated Publishing, Inc.
9438 US Hwy 19N #311 Port Richey, FL 34668

Phone For Parts Inquiries: (727) 755-3260
Google +