Quantcast Spacing and Edge Distance

Share on Google+Share on FacebookShare on LinkedInShare on TwitterShare on DiggShare on Stumble Upon
Custom Search
 
  
control parts, wing covering, or similar parts of the aircraft. 6. Minimum rivet diameter is equal to the thickness of the thickest sheet to be riveted. 7. Maximum rivet diameter is three times the thickness of the thickest sheet to be riveted. 8. The proper length of rivet is an important part of the repair. If the rivet is too long, the formed head will be too large, or the rivet may bend or be forced between the sheets being riveted. If the rivet is too short, the formed head will be too small or the riveted material will be damaged. The length of the rivet should equal the sum of the thickness of the metal plus 1 1/2 times the diameter of the rivet, as shown in figure 13-43. The formula for determining rivet length is as follows: 1  1 / 2  x  D + G =L Where: D = the rivet diameter, G = the grip (total thickness of material, and L = the total length of the rivet. Spacing and Edge Distance Rivet spacing, also referred as rivet pitch, is the distance between the rivets in the same row, and is measured from the rivet center to the rivet center. Transverse pitch is the distance between the rows of rivets, and is measured from the rivet center to rivet center. Edge distance is the distance from the center of the rivet to the edge of the material being riveted. Figure 13-43.—Rivet length. There are no specific rules that apply to every case or type of riveting. There are, however, certain general rules that should be followed. RIVET SPACING.—Rivet spacing (pitch) depends upon several factors, principally the thickness of the sheet, the diameter of the rivets, and the manner in which the sheet will be stressed. Rivet spacing should never be less than three times the rivet diameter. Spacing is seldom less than four times the diameter nor more than eight times the diameter. TRANSVERSE PITCH.—When two or more rows of rivets are used in a repair job, the rivets should be staggered to obtain maximum strength. The distance between the rows of rivets is called “transverse pitch.” Transverse pitch is normally 75 percent of existing rivet pitch, but should never be less than 2 1/2 times the diameter. EDGE DISTANCE.—The edge distance for all rivets, except those with a flush head, should not be less than twice the diameter of the rivet shank nor more than four times the diameter of the rivet shank. Flush-head rivets require an edge distance of at least 2 1/2 times the diameter. If rivets are placed to close to the edge of the sheet, the sheet is apt to crack or pull away from the rivets. If they are placed too far away from the edge, the sheet is apt to turn up at the edge. NOTE: On most repairs, the general practice is to use the same rivet spacing and edge distance that the manufacturer used in the surrounding area, or the structural repair manual for the particular aircraft may be consulted, Figure and edge distance. 13-44 shows rivet spacing Figure 13-44.—Rivet spacing and edge distance. 13-27



Aviation News
FAA Posts Second Video in New Safety Information Video Series
June 30- The Federal Aviation Administration (FAA) has posted the...
faa.gov
FAA: Washington DC is a NO DRONE ZONE
June 30- As the July 4 holiday approaches, the Federal...
faa.gov
Building momentum: Vietnam Airlines becomes second operator of the game-changing A350 XWB
The operator base for Airbus’ new-generation A350 XWB is extending...
airbus.com
Vietnam Airlines becomes world’s second operator of the A350 XWB
New levels of comfort and efficiency for carrier’s long haul...
airbus.com
Reports: Schools Banned From Enrolling Vets
Helicopter flight schools in Arizona, Florida, Texas and Washington have...
aviationtoday.com
Erickson to Provide Training for Uruguayan Helicopter Pilots
[Avionics Today 06-26-2015] Aviation services provider Erickson Inc., has contracted...
aviationtoday.com
Littelfuse Introduces TVS Diodes for Avionics
Littelfuse TVS HR diodes. Photo: Littelfuse [Avionics Today 06-26-2015] Littelfuse...
aviationtoday.com
Kuwait Airways receives its first A330-200
Fleet upgrade continues with the world’s most versatile wide-body Share...
airbus.com
Boeing Completes C-17 Training Network Build Out
C-17 training at Altus Air Force Base, Okla. Photo: Boeing...
aviationtoday.com
Dennis Muilenburg Tapped as Next Boeing CEO
Dennis A. Muilenburg, Boeing president and chief executive officer effective...
aviationtoday.com
Aspen Avionics Touts GPS Company Accord Technology Acquisition
[Avionics Today 06-24-2015] Aspen Avionics has acquired Accord Technology (AT)...
aviationtoday.com
Spherea Test & Services Leads Consortium to Build Open-Air Test Cells for Safran
[Avionics Today 06-25-2015] Snecma (Safran) has awarded a consortium composed...
aviationtoday.com
CTS800 Engine Chosen for Turkish Helicopters
The Light Helicopter Turbine Engine Company (LHTEC), a 50-50 partnership...
aviationtoday.com
Executive Q&A: Steve Sargeant, Marvin Test Solutions' CEO
With continued technological innovation and the constant need to retrofit...
aviationtoday.com
Italian Air Force Shows Off HH-101A “Caesar”
Italy’s air force introduced dignitaries and the media to its...
aviationtoday.com
SPAWAR Awards DLS $478 Million Contract
[Avionics Today 06-19-2015] The Space and Naval Warfare Systems Command...
aviationtoday.com
FAA and EU Sign LOI to Harmonize NextGen, SESAR
Diagram of NextGen. Photo: FAA [Avionics Today 06-19-2015] The FAA...
aviationtoday.com
FAA, EU Plan to Extend, Expand NextGen Pact
June 18- The FAA and the European Union today announced...
faa.gov
Shining brightly at Le Bourget: Airbus wraps up a successful Paris Air Show
Airbus’ highly-active 2015 International Paris Air Show underscored the firm...
airbus.com


Privacy Statement - Copyright Information. - Contact Us

comments powered by Disqus

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

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