Mark Bolton
Active Member
I hope this is not posted in the wrong spot since it is not model specific but rather a general firewall forward topic.
I am building an RV 4 and there has been some discussion about using twist / lock style fasteners to hold the cowls onto the firewall instead of the fairly awkward piano hinge / bent hinge pin method. This is not specific to RV 4 but the bends are tighter so it is that much more difficult.
Has any one tried this ?
I would expect a considerable amount of reinforcement would be needed along the screw line / frire wall - probably a strip of Aluminium glued to the fibreglass with Proseal (or Sikaflex).
What amount of fastener spacing would be best ?
I hasten to add I wouldnt comtemplate using this method to hold the top / bottom halves together the pin method works just fine and probably has better structural integrity.
Thank you in anticipation of your replies.
Regards
Mark Bolton
I am building an RV 4 and there has been some discussion about using twist / lock style fasteners to hold the cowls onto the firewall instead of the fairly awkward piano hinge / bent hinge pin method. This is not specific to RV 4 but the bends are tighter so it is that much more difficult.
Has any one tried this ?
I would expect a considerable amount of reinforcement would be needed along the screw line / frire wall - probably a strip of Aluminium glued to the fibreglass with Proseal (or Sikaflex).
What amount of fastener spacing would be best ?
I hasten to add I wouldnt comtemplate using this method to hold the top / bottom halves together the pin method works just fine and probably has better structural integrity.
Thank you in anticipation of your replies.
Regards
Mark Bolton