Original Posted By: Hatz630(at)aol.com
Subject: Pietenpol-List: ribs---well done>>finally!!! the last rib is completed--22 standard.,,2 w/extra uprights,,2>left-2 right w/ply-sides. now shopping for spar material>JoeC>Zion, Illinois>>________________________________________________________________________________
Pietenpol-List: ribs---well done
Pietenpol-List: ribs---well done
Original Posted By: del magsam
Re: Pietenpol-List: ribs---well done
Original Posted By: fishin
Way to go , Joe....One step at a time. I just used up about 8 of those turnbuckles you sentme.Just about got my controls in now. 60% done 75% to go. Started thinkingabout fabric today,too!Actually started dreaming about color schemes for the first time , too.Man! I wish I was rich and retired.....Bert-----Original Message-----
Way to go , Joe....One step at a time. I just used up about 8 of those turnbuckles you sentme.Just about got my controls in now. 60% done 75% to go. Started thinkingabout fabric today,too!Actually started dreaming about color schemes for the first time , too.Man! I wish I was rich and retired.....Bert-----Original Message-----
Re: Pietenpol-List: ribs---well done
Original Posted By: Lawrence V Williams
Subject: Re: Pietenpol-List: wood joysticksWhy not go down to your local craft store and buy a wooden ball, drill it for size and slip over the top of the joystick. With a little bit of stain and varnish it is quite attractive. I did this for my daughter's pedal plane and it worked out nice.Scott________________________________________________________________________________Date: Sat, 13 Nov 1999 12:08:36 -0500Subject: Re: Pietenpol-List: ribs---well done
Subject: Re: Pietenpol-List: wood joysticksWhy not go down to your local craft store and buy a wooden ball, drill it for size and slip over the top of the joystick. With a little bit of stain and varnish it is quite attractive. I did this for my daughter's pedal plane and it worked out nice.Scott________________________________________________________________________________Date: Sat, 13 Nov 1999 12:08:36 -0500Subject: Re: Pietenpol-List: ribs---well done
Re: Pietenpol-List: ribs---well done
Original Posted By:> fishin
Let me know about spar material, I need some too. Maybe a quantitydiscount for large orders??----------
Let me know about spar material, I need some too. Maybe a quantitydiscount for large orders??----------
Re: Pietenpol-List: ribs---well done/spars next
Original Posted By:> fishin
I guess I am missing something basic. I was not aware that a large number(apparently) are using 3/4" spars. Why is this? purely weight savings? Who/when/how was it that determined 3/4 was sufficient? Also, I was notaware Replicraft ribs were for 3/4", I thought they were for 1". Steve,which is it?----------
I guess I am missing something basic. I was not aware that a large number(apparently) are using 3/4" spars. Why is this? purely weight savings? Who/when/how was it that determined 3/4 was sufficient? Also, I was notaware Replicraft ribs were for 3/4", I thought they were for 1". Steve,which is it?----------
Re: Pietenpol-List: ribs---well done/spars next
Original Posted By: Replicraft(at)aol.com
Subject: Re: Pietenpol-List: ribs---well done/spars nextIn a message dated 11/14/99 8:11:49 AM Central Standard Time, rambog(at)erols.com writes:>Gene, I can't speak for the rest of the crowd, but I plan to use 3/4" Douglas Fir Spars (not routed). My logic is this...1) I studied the plans which call for 1" routed spruce. I immediately started thinking...ROUTED??...wow thats a lot of work and not much room for mistakes in doing the routing.2) I noticed that the routing takes the 'web' down to 1/2' in in some areas.3) I thought to myself...how much weight does the routing on a spruce spar actually save? I figured that it must save about a third or a little more, based on the ratio of the area routed -vs- not routed. 4) I talked to some folks who've used 1" spruce without routing. And they seemed happy to have gone that route. So I began to start leaning in that direction.5) Then I priced Spruce. Whoa!!! That hurts in the wallet!!!6) From my experience, I had known that a lot of Type Certified aircraft used Douglas Fir spars. So I priced it and found out that it was almost 1/2 the price of spruce.7) I knew Douglas Fir was nearly twice the weight but also was nearly twice as strong as spruce, too. So I began to wonder just how thick would a Douglas Fir spar need to be to be as strong as a 1" spruce routed spar.8) Then I ran into some folks on this list who were talking about using 3/4" Douglas Fir. Also, I had the opportunity to see three different Piet projects with 3/4" spruce. 9) I considered the options of changing my rib jig or not and one of the guys convinced me that I its best leave it set for a 1" spar, so that all of the other dimensions will work themselves out. Seemed logical...I could just use shims to make up the difference at the ribs and add doublers at the attach fittings.10) I realized that this is a little heavier and stronger than spruce routed would be. 11) I decided that I like the trade-off. But with the additional weight in mind I committed myself to be very weight conscious on the entire project. To me this seems to be the best structural decision with lowest cost.Anyway...thats my logic. By the way...I am building red cedar ribs. These are about the same weight or a little lighter than spruce and a LOT less expensive. Sacrifice a little in strength, but My belief is that the 1/4" X 1/2" capstrips are a little overkill anyway. (My opinion.) This is the great thing about building a Piet. You get to weigh all of the factors yourself and determine for yourself what is sufficient. If you lack confidence in your own judgement, you can always fall back on Bernie's judgement. His must have been pretty good, wouldn't you agree?Terry________________________________________________________________________________
Subject: Re: Pietenpol-List: ribs---well done/spars nextIn a message dated 11/14/99 8:11:49 AM Central Standard Time, rambog(at)erols.com writes:>Gene, I can't speak for the rest of the crowd, but I plan to use 3/4" Douglas Fir Spars (not routed). My logic is this...1) I studied the plans which call for 1" routed spruce. I immediately started thinking...ROUTED??...wow thats a lot of work and not much room for mistakes in doing the routing.2) I noticed that the routing takes the 'web' down to 1/2' in in some areas.3) I thought to myself...how much weight does the routing on a spruce spar actually save? I figured that it must save about a third or a little more, based on the ratio of the area routed -vs- not routed. 4) I talked to some folks who've used 1" spruce without routing. And they seemed happy to have gone that route. So I began to start leaning in that direction.5) Then I priced Spruce. Whoa!!! That hurts in the wallet!!!6) From my experience, I had known that a lot of Type Certified aircraft used Douglas Fir spars. So I priced it and found out that it was almost 1/2 the price of spruce.7) I knew Douglas Fir was nearly twice the weight but also was nearly twice as strong as spruce, too. So I began to wonder just how thick would a Douglas Fir spar need to be to be as strong as a 1" spruce routed spar.8) Then I ran into some folks on this list who were talking about using 3/4" Douglas Fir. Also, I had the opportunity to see three different Piet projects with 3/4" spruce. 9) I considered the options of changing my rib jig or not and one of the guys convinced me that I its best leave it set for a 1" spar, so that all of the other dimensions will work themselves out. Seemed logical...I could just use shims to make up the difference at the ribs and add doublers at the attach fittings.10) I realized that this is a little heavier and stronger than spruce routed would be. 11) I decided that I like the trade-off. But with the additional weight in mind I committed myself to be very weight conscious on the entire project. To me this seems to be the best structural decision with lowest cost.Anyway...thats my logic. By the way...I am building red cedar ribs. These are about the same weight or a little lighter than spruce and a LOT less expensive. Sacrifice a little in strength, but My belief is that the 1/4" X 1/2" capstrips are a little overkill anyway. (My opinion.) This is the great thing about building a Piet. You get to weigh all of the factors yourself and determine for yourself what is sufficient. If you lack confidence in your own judgement, you can always fall back on Bernie's judgement. His must have been pretty good, wouldn't you agree?Terry________________________________________________________________________________
> Pietenpol-List: ribs---well done
Original Posted By: "Gene Rambo"
> > > finally!!! the last rib is completed--22 standard.,,2 w/extra uprights,,2> left-2 right w/ply-sides. now shopping for spar material> JoeC> Zion, Illinois> > > > > > > > ________________________________________________________________________________
> > > finally!!! the last rib is completed--22 standard.,,2 w/extra uprights,,2> left-2 right w/ply-sides. now shopping for spar material> JoeC> Zion, Illinois> > > > > > > > ________________________________________________________________________________
> Re: Pietenpol-List: ribs---well done/spars next
Original Posted By: BARNSTMR(at)aol.com
> > > > > Joe> >> > Let me know what you decide for spars, Maybe we can piggy-back an order> > and save some $$.> >> > Larry> > Larry---I've decided to go with 3/4" spars and 3/32 ply fillers for ribsand> metal fittings..my metal fittings and ribs are built to accomodate a 1"> spar...3/32ply fillers will allow room for glue which I don't think I'dhave if> I went with 1/8" ply fillers. one day next week I plan to visit McCormick> lumber in Madison Wi, to look over their Sitka Spruce, I'll let you knowwhat> I find, You can check them out at , theyare> only about 1 1/2 hrs from me. I also plan to eliminate that small wedgeon top> of the ribs by cutting that angle on the spar top. hope to have thecenter> section completed b-4 the years end but I don't know, those holidays are> sneeking up on me pretty quick and I think my bride might have otherplans for> me between now and years end.> regards> JoeC> Zion, Illinois> > >> > >> > >> > >> > >> > >> > >> >> >> > > > > > > > ________________________________________________________________________________
> > > > > Joe> >> > Let me know what you decide for spars, Maybe we can piggy-back an order> > and save some $$.> >> > Larry> > Larry---I've decided to go with 3/4" spars and 3/32 ply fillers for ribsand> metal fittings..my metal fittings and ribs are built to accomodate a 1"> spar...3/32ply fillers will allow room for glue which I don't think I'dhave if> I went with 1/8" ply fillers. one day next week I plan to visit McCormick> lumber in Madison Wi, to look over their Sitka Spruce, I'll let you knowwhat> I find, You can check them out at , theyare> only about 1 1/2 hrs from me. I also plan to eliminate that small wedgeon top> of the ribs by cutting that angle on the spar top. hope to have thecenter> section completed b-4 the years end but I don't know, those holidays are> sneeking up on me pretty quick and I think my bride might have otherplans for> me between now and years end.> regards> JoeC> Zion, Illinois> > >> > >> > >> > >> > >> > >> > >> >> >> > > > > > > > ________________________________________________________________________________