Original Posted By: Michael D Cuy
Have any of you put a reinforcement in the front seat bottom? I amuncomfortable having the sharp end of the rudder bar pivot in a position toimpale the front seat passenger in a crash. A small steel plate maybe?________________________________________________________________________________Date: Fri, 14 Jul 2000 13:27:41 -0400
Pietenpol-List: front seat bottom
Re: Pietenpol-List: front seat bottom
Original Posted By: "Gene and Karen Rambo"
>>Have any of you put a reinforcement in the front seat bottom? I am>uncomfortable having the sharp end of the rudder bar pivot in a position to>impale the front seat passenger in a crash. A small steel plate maybe?Front seat bottom?Make it removable.Rudder bar pivot? There is a single pivot. I noticed after many hrs offlying that the bar had vertical motion. I inspected the bolt & it was OK &decided that the motion was in the nature of the long arm from the pivotbolt to the end of the rudder bar.To eliminate this motion & the stabilize the bar, I placed two fore & aftrunners between the seat supports on either side. Thus, the rudder bar rideson these supports & is in effect, stabilized.Mike B Piet N687MB ( Mr Sam )________________________________________________________________________________
>>Have any of you put a reinforcement in the front seat bottom? I am>uncomfortable having the sharp end of the rudder bar pivot in a position to>impale the front seat passenger in a crash. A small steel plate maybe?Front seat bottom?Make it removable.Rudder bar pivot? There is a single pivot. I noticed after many hrs offlying that the bar had vertical motion. I inspected the bolt & it was OK &decided that the motion was in the nature of the long arm from the pivotbolt to the end of the rudder bar.To eliminate this motion & the stabilize the bar, I placed two fore & aftrunners between the seat supports on either side. Thus, the rudder bar rideson these supports & is in effect, stabilized.Mike B Piet N687MB ( Mr Sam )________________________________________________________________________________
Re: Pietenpol-List: front seat bottom
Original Posted By:> Michael Brusilow
----------
----------
Re: Pietenpol-List: front seat bottom
Original Posted By: "Domenico Bellissimo"
I crashed and there was absolutely no movement of the control bar or rudderbar at all.Domenico________________________________________________________________________________
I crashed and there was absolutely no movement of the control bar or rudderbar at all.Domenico________________________________________________________________________________
Re: Pietenpol-List: construction order
Original Posted By: Richard DeCosta
Richard Hi,I haven't talked to you for a while. How are you. I see you are progressingwell. I put my controls in after I had put in the seat. Not much difficultythere. Joe C. mentioned to notch out the front seat "V" supports forclearance. You need to think about that for a minute. I too thought I neededit for clearance and actually notched one side. I definitely regretted doingthat. The notches are not on the drawings, nor have I seen anyone else'sPiet. with notches. I thought the connecting rod between the front and rearcockpit needed the clearance but in actual fact the aileron travel is notthat great and is not needed. I regretted cutting the notch thinking itwould weaken the structure, but in actual fact there was no failure in thatarea from my crash, which was sort of flat/forward direction. The Pilot'sseat back cracked open from the weight of my back along the bottom of theseat.Regards,Domenico BellissimoPietenpol Survivor________________________________________________________________________________Date: Fri, 14 Jul 2000 19:15:21 -0700 (PDT)
Richard Hi,I haven't talked to you for a while. How are you. I see you are progressingwell. I put my controls in after I had put in the seat. Not much difficultythere. Joe C. mentioned to notch out the front seat "V" supports forclearance. You need to think about that for a minute. I too thought I neededit for clearance and actually notched one side. I definitely regretted doingthat. The notches are not on the drawings, nor have I seen anyone else'sPiet. with notches. I thought the connecting rod between the front and rearcockpit needed the clearance but in actual fact the aileron travel is notthat great and is not needed. I regretted cutting the notch thinking itwould weaken the structure, but in actual fact there was no failure in thatarea from my crash, which was sort of flat/forward direction. The Pilot'sseat back cracked open from the weight of my back along the bottom of theseat.Regards,Domenico BellissimoPietenpol Survivor________________________________________________________________________________Date: Fri, 14 Jul 2000 19:15:21 -0700 (PDT)
Re: Pietenpol-List: construction order
Original Posted By: JOEL CARROLL
Re: Pietenpol-List: front seat bottom
Original Posted By:>> Michael Brusilow
Subject: Re: Pietenpol-List: front seat bottom>>>----------
Subject: Re: Pietenpol-List: front seat bottom>>>----------
Re: Pietenpol-List: front seat bottom
Original Posted By:> Domenico Bellissimo
----------
----------
Re: Pietenpol-List: front seat bottom
Original Posted By: "Gene and Karen Rambo"
>>>I am not worried about the rudder bar moving. I am concerned about the>seat collapsing down onto the pivot and impaling the front passenger. I>would have thought someone else had considered this danger and addressed>it.>> GeneHey Gene:In answer to your question, I think that if there was sufficient verticalforce to collapse the front seat, impaling the front passenger woud be theleast of your problems.In all the fatal Piet accidents that I have reviewed, structural failure ofthe aircraft was not a factor.Mike B Piet N687MB ( Mr Sam )________________________________________________________________________________
>>>I am not worried about the rudder bar moving. I am concerned about the>seat collapsing down onto the pivot and impaling the front passenger. I>would have thought someone else had considered this danger and addressed>it.>> GeneHey Gene:In answer to your question, I think that if there was sufficient verticalforce to collapse the front seat, impaling the front passenger woud be theleast of your problems.In all the fatal Piet accidents that I have reviewed, structural failure ofthe aircraft was not a factor.Mike B Piet N687MB ( Mr Sam )________________________________________________________________________________
Re: Pietenpol-List: front seat bottom
Original Posted By:> Michael Brusilow
----------
----------
Re: Pietenpol-List: front seat bottom
Original Posted By: Gene and Karen Rambo
Gene, Since this topic has started, I had the chance to study the rudder barassy on my project ( built it a while ago).I don't see what you would get impaled on. The only thing rising above thesolid cross bar is the brace bracket end and a nut. Now consider that youare sitting on 1/4" ply seat , and that has three 1" thk supports runningfore and aft. In a downward thrust the seat would contact the flat rudderbar, and "flatly" push it down. I think the legs of the support would bend,or be pushed thru the floor.walt-----------------------------------------------------Click here for Free Video!!http://www.gohip.com/freevideo/-----Original Message-----
Gene, Since this topic has started, I had the chance to study the rudder barassy on my project ( built it a while ago).I don't see what you would get impaled on. The only thing rising above thesolid cross bar is the brace bracket end and a nut. Now consider that youare sitting on 1/4" ply seat , and that has three 1" thk supports runningfore and aft. In a downward thrust the seat would contact the flat rudderbar, and "flatly" push it down. I think the legs of the support would bend,or be pushed thru the floor.walt-----------------------------------------------------Click here for Free Video!!http://www.gohip.com/freevideo/-----Original Message-----
Re: Pietenpol-List: front seat bottom
Original Posted By: Duane
In a downward thrust the seat would contact the flat rudder> bar, and "flatly" push it down. I think the legs of the support wouldbend,> or be pushed thru the floor.Walt:You're probably right. Maybe I am giving too much credit to the strengthof the rudder pivot support.________________________________________________________________________________Date: Sat, 03 Jun 2000 07:28:32 -0500
In a downward thrust the seat would contact the flat rudder> bar, and "flatly" push it down. I think the legs of the support wouldbend,> or be pushed thru the floor.Walt:You're probably right. Maybe I am giving too much credit to the strengthof the rudder pivot support.________________________________________________________________________________Date: Sat, 03 Jun 2000 07:28:32 -0500
Re: Pietenpol-List: For Sale Cont. A 65
Original Posted By: "Duane"
This sounds interesting. Where are you located. I was planning to engineshop at OSH. I am in St. Paul, MN.Dick Navratil----- Original Message -----
This sounds interesting. Where are you located. I was planning to engineshop at OSH. I am in St. Paul, MN.Dick Navratil----- Original Message -----
Re: Pietenpol-List: front seat bottom
Original Posted By:>> > Michael Brusilow
Subject: Re: Pietenpol-List: front seat bottom>>> ----------
Subject: Re: Pietenpol-List: front seat bottom>>> ----------
> Re: Pietenpol-List: front seat bottom
Original Posted By: "Domenico Bellissimo"
> > Front seat bottom?> > Make it removable.> Mike, I meant that the bottom is only 1/16" plywood and not much protectionfrom the pointed pivot. Removable has nothing to do with it. Justwondering if that has bothered anyone else and whether they have come upwith a solution Gene________________________________________________________________________________
> > Front seat bottom?> > Make it removable.> Mike, I meant that the bottom is only 1/16" plywood and not much protectionfrom the pointed pivot. Removable has nothing to do with it. Justwondering if that has bothered anyone else and whether they have come upwith a solution Gene________________________________________________________________________________
Original Posted By: "Michael Brusilow"
> > I crashed and there was absolutely no movement of the control bar orrudder> bar at all.> Domenico> > Domenico: I am not worried about the rudder bar moving. I am concerned about theseat collapsing down onto the pivot and impaling the front passenger. Iwould have thought someone else had considered this danger and addressedit. Gene________________________________________________________________________________
> > I crashed and there was absolutely no movement of the control bar orrudder> bar at all.> Domenico> > Domenico: I am not worried about the rudder bar moving. I am concerned about theseat collapsing down onto the pivot and impaling the front passenger. Iwould have thought someone else had considered this danger and addressedit. Gene________________________________________________________________________________