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Property of 

www.ppgplans.com

 – Do not duplicate or make public. 

Last Revised Version: January 2010 

© PPGPlans.com 

Frame: - Center Section 

 

Tip:

  The  0.750  (3/4”)  chromoly  tubes  generally  fit  snug  into  the  ends  of  the  square  aluminum 

tubes,  if  they  do  not,  slightly  dent  in  one  side  of  the  square  tube,  just  enough  to  hold  the 
chromoly tube in place. 
 

Tip:

 If your vertical tubes are just short of 36 inches do not worry, just be sure the ¼ inch hole for 

the diagonal brace is 7 5/8 inches up from the BOTTOM of the vertical tube to keep things square. 
The rest of the measurements should be from the top of the vertical tube. 

 

1)

 

Drill all of the ¾ inch holes in the square tube parts.  
 

Tip:

 

Do not try to do the ¼” holes yet

, as they will require the round tubes to be inserted first 

to allow for precise alignment. 

 

Tip:

 On the bottom horizontal square tubes, have the holes go all the way through both sides, 

this  way  the  steel  on  the  vertical  square  tubes  will  have  another  anchor  point  to  prevent  it 
from possibly moving within the square tube. 

 
2)

 

Insert  the  two  5  ½”  chromoly  tubes  1  ½  inches  into  the  ends  of  one  of  the  14  3/8”  long 
connecting  tubes.  Insert  the  two  2  ½  inch  x  0.058  wall  chromoly  tube  1  ½  inches  into  the 
second 14 3/8” connecting tube. Be sure to use the 0.058” wall chromoly in the second one 
for an optional weight shift kit later. 

 

 

 
3)

 

Insert  the  1

st

  connecting  tube  with  5  ½  inch  chromoly  inserts  into  the  ¾”  hole  that  is  8  ½ 

inches  from  the  top  of  one  of  the  36  inch  long  square  vertical  tubes.  Then  the  second 
connecting tube with the 0.058 wall chromoly into the lower ¾ inch hole in the vertical tube. 
Then one end of the 16 3/8 chromoly tube into the top ¾ inch hole in the vertical tube. Now 
install the second vertical tube onto the assembly. 

Summary of Contents for Skybolt V2

Page 1: ...Property of www ppgplans com Do not duplicate or make public Last Revised Version January 2010 PPGPlans com Skybolt V2 Construction Manual Revised Version January 2010...

Page 2: ...Warnings Disclaimer 3 Acknowledgements 3 Tools Used 4 Tips 4 Layout 5 Frame Center Section 6 Building The Hoop 9 Lower Cage Section 9 Upper Cage Section 11 Hoop Connectors 13 Final Assembly 17 J Bars...

Page 3: ...and thorough preflight has been a contributing factor to accidents in all kinds of aircraft Equipment damage bodily injury even death can occur due to equipment problems not caught in a proper preflig...

Page 4: ...bender Electric or cordless hand drill Hemostat straight 10 inch Files flat and round Various common hand tools Tips When drilling the inch holes in the square tubing extreme accuracy is necessary in...

Page 5: ...cut an 18x48 inch piece and two 2x48 inch pieces off of one end From the two 2 inch strips cut a bunch of 2x4 inch blocks for hold down purposes later Center the 18x48 inch piece along the edge of th...

Page 6: ...allow for precise alignment Tip On the bottom horizontal square tubes have the holes go all the way through both sides this way the steel on the vertical square tubes will have another anchor point to...

Page 7: ...inches sticking out Insert two 2 chromoly tubes into the bottom of the vertical tubes leaving 1 inch sticking out 5 Temporarily install the two lower square horizontal tubes onto the bottom of the ver...

Page 8: ...section lay the rest of the center section on the flat surface use blocks screwed down to hold in place make sure all joints are tight and all chromoly inserts are in place 7 Drill inch holes inch in...

Page 9: ...aight line below the hoop circle 3 Slide this whole assembly side ways as needed until the 0 875 tube meets the inside hoop diameter line on your layout surface You may need to tweak the reference ben...

Page 10: ...To make these curved hoop sections you are using the conduit bender to FORM the tube rather than bend the tube TIP It is fairly easy to straighten a tube that does not lay flat by inserting a tube in...

Page 11: ...atch that the tube remains as straight as possible when it exits the bender keep it aligned with the handle of the bender 2 Once you have the two 0 750 sections formed lay them on the surface and scre...

Page 12: ...nts are tight on both ends of the radial tubes check to make sure the side radial tubes are straight above the lines on the surface Also be sure the bottom of the center section is centered and remain...

Page 13: ...ything is in place Mark the connector locations on both lower hoop tubes 2 Now remove the lower 0 875 hoop section Cut the lower 0 875 section off 1 inch above the connector outline Use a file and rou...

Page 14: ...10 PPGPlans com 4 Insert the 0 750 tube at least 1 inch into the 0 875 tube you may need to reshape the ends of the tubes to accomplish this by squeezing them in a vise A small amount of grease works...

Page 15: ...the center of the connector to mark the tube Drill a 7 32 hole on this mark through one wall of the tube only and bolt the connector to the tube using the half round anchor inside of the tube This is...

Page 16: ...the end of the anchor is and mark it on the outside of the tube Mark and cut off the 0 625 upper tube to length Once again being sure the lower part of the center section is in place above the layout...

Page 17: ...nch chromoly tube tight to the bottom square tubes Install the two AN4 24A bolts through the vertical tubes and the diagonal brace tubes with a large area washer on each side 2 Check that everything o...

Page 18: ...it is a bit warped looking you may need to adjust the radial tube to hoop connectors by loosening them a bit and twisting that hoop section Once you are satisfied you can drill the 7 32 holes through...

Page 19: ...t need to be closed tight only about halfway closed File all sharp edges nice and round this flat end will slide into the pocket on the harness webbing you want no sharp edges there For locating the p...

Page 20: ...e through Slide the long straight part of the J bars into the protruding ends of the diagonal braces all the way to the bolt This can be a challenge as the J bar can be a tight fit in the square tube...

Page 21: ...lic Last Revised Version January 2010 PPGPlans com Attach the lower end of the shoulder straps to the bottom part of the vertical square tubes Melt hole on the strap about 1 inch above the end attach...

Page 22: ...to clear the starter can be cut with a jig saw with metal blade The dimensions for attaching these engine mounts are on the drawings Fuel Tank Mounting Use the 1 inch x 1 8 angle to mount the fuel tan...

Page 23: ...eet the hoop You may want to add foam padding around the tubes at the bottom of the frame such as the 90 degree corner in the square tubing in case of contact with your legs Adding wheels at these cor...

Page 24: ...Property of www ppgplans com Do not duplicate or make public Last Revised Version January 2010 PPGPlans com Appendix A More photos Pull Start pulley attached to side vertical bar Finshed Frame...

Page 25: ...Property of www ppgplans com Do not duplicate or make public Last Revised Version January 2010 PPGPlans com Close up view of finished netting at the sides Finished Unit...

Page 26: ...ft 6061 or 6063 aluminum square 1 x 0 125 wall square tube 2 3 ft sections 1 6ft section 1 2 ft section 6063 aluminum angle 1 x 0 125 angle 5 ft 6061 T6 aluminum round 0 875 x 0 058 wall 3 6 ft sectio...

Page 27: ...co com Paratoys www paratoys com AerotThrust www aerothrustppg com Francesco De Santis www powerglider biz francesco powerglider biz Netting John Fetz botmom yahoo com Marc mcd0213 yahoo com Throttle...

Page 28: ...Property of www ppgplans com Do not duplicate or make public Last Revised Version January 2010 PPGPlans com...

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