Brodhead Pietenpol Association

Original Posted By: Doug413(at)aol.com
Hi everyone to the experienced this is gonna sound like a dumb question but here it goes; in the plans the lower motor mount brackets that bolt to the lower front corner of the fuselage each have two tabs that bend toward the centerline of the longeron. The tabs show 3/16" holes in them. I can't find any fastening details but I'm assuming(you know what that means) that 10/32 bolts go through those holes into the fuselage front upright. If this is true then there's two for the outer half and two for the inner half. It just seems to me that 1. thats a lot of holes drilled through a rather highly stressed 3/4" X 1"piece of spruce and 2. there's not a whole lot of room for nuts and washers in between the gussets. Sooooo are there supposed to be four through bolts that go into those brackets from the front????? Thanks in advance. Ed G.________________________________________________________________________________

Original Posted By: "Mckellars"
Subject: Re: Pietenpol-List: lower motor mount bracketsIn a message dated 6/25/01 4:54:58 PM Pacific Daylight Time, flyboy_120(at)hotmail.com writes:> >> > > Hi everyone to the experienced this is gonna sound like a dumb question > but here it goes; in the plans the lower motor mount brackets that bolt to > the lower front corner of the fuselage each have two tabs that bend toward > the centerline of the longeron. The tabs show 3/16" holes in them. I can't > find any fastening details but I'm assuming> (you know what that means) that 10/32 bolts go through those holes into the > fuselage front upright. If this is true then there's two for the outer half > and two for the inner half. It just seems to me that 1. thats a lot of > holes > drilled through a rather highly stressed 3/4" X 1"> piece of spruce and 2. there's not a whole lot of room for nuts and washers > in between the gussets. Sooooo are there supposed to be four through bolts > that go into those brackets from the front????? Thanks in advance.> Ed G.> > > Ed,The holes in the front tabs of the lower engine mount plates are for small wood screws. I put them in the first airplane carefully, but left them out of the next three. I am building a Scout now and it does not have these tabs in the design. Doug Bryant Wichita Ks________________________________________________________________________________

Original Posted By: "Ed Grentzer"
Ed, On the lower brackets there are no holes or bolts through the front ofthe longeron or the upright between the top and bottem longeron. Mark----- Original Message -----

Original Posted By: Christian Bobka

Original Posted By: Michael D Cuy
Thanks Chris, Doug and Mark for your replies on the Motor mount bracket tabs. I see from your different answers that this is one of those areas that you have to play by ear. Anywho I'm glad I asked rather than just go ahead and start drilling too many holes. I can see the purpose of the tabs , to help support the endwise load on the fitting but I dont like all those holes. So I think I'll leave the tabs long, overlap them, drill one hole through both and put one #8 screw through both. Thanks again. Ed G.>From: Doug413(at)aol.com>Reply-To: pietenpol-list(at)matronics.com>To: pietenpol-list(at)matronics.com>Subject: Re: Pietenpol-List: lower motor mount brackets>Date: Mon, 25 Jun 2001 22:48:02 EDT>>>In a message dated 6/25/01 4:54:58 PM Pacific Daylight Time,>flyboy_120(at)hotmail.com writes:>>> > >> >> >> > Hi everyone to the experienced this is gonna sound like a dumb >question> > but here it goes; in the plans the lower motor mount brackets that bolt >to> > the lower front corner of the fuselage each have two tabs that bend >toward> > the centerline of the longeron. The tabs show 3/16" holes in them. I >can't> > find any fastening details but I'm assuming> > (you know what that means) that 10/32 bolts go through those holes into >the> > fuselage front upright. If this is true then there's two for the outer >half> > and two for the inner half. It just seems to me that 1. thats a lot of> > holes> > drilled through a rather highly stressed 3/4" X 1"> > piece of spruce and 2. there's not a whole lot of room for nuts and >washers> > in between the gussets. Sooooo are there supposed to be four through >bolts> > that go into those brackets from the front????? Thanks in advance.> > Ed G.> >> >> >>>Ed,>>The holes in the front tabs of the lower engine mount plates are for small>wood screws. I put them in the first airplane carefully, but left them out>of the next three. I am building a Scout now and it does not have these >tabs>in the design. Doug Bryant Wichita Ks>>________________________________________________________________________________Date: Tue, 26 Jun 2001 07:59:21 -0400

Original Posted By: owner-pietenpol-list-server(at)matronics.com
I made mine long and welded them together to make a box. Omitted thescrews. BTW Ed, your hat is on the way, Thanks,Steve E.-----Original Message-----

Original Posted By: Kirk & Laura Huizenga
Thanks Steve After hearing all the different things people have done to those tabs thats exactly what I've decided to do. Make the tabs long enough so they meet in the center and weld them together in a jig. Looking forward to getting my hat. Thanks Ed>From: Steve Eldredge >Reply-To: pietenpol-list(at)matronics.com>To: "'pietenpol-list(at)matronics.com'" >Subject: RE: Pietenpol-List: lower motor mount brackets>Date: Tue, 26 Jun 2001 08:43:54 -0600>>>I made mine long and welded them together to make a box. Omitted the>screws.>>BTW Ed, your hat is on the way, Thanks,>>Steve E.>>-----Original Message----->From: owner-pietenpol-list-server(at)matronics.com>[mailto:owner-pietenpol-list-server(at)matronics.com]On Behalf Of Ed>Grentzer>Sent: Tuesday, June 26, 2001 5:41 AM>To: pietenpol-list(at)matronics.com>Subject: Re: Pietenpol-List: lower motor mount brackets>>>>>> Thanks Chris, Doug and Mark for your replies on the Motor mount bracket>tabs. I see from your different answers that this is one of those areas >that>>you have to play by ear. Anywho I'm glad I asked rather than just go ahead>and start drilling too many holes. I can see the purpose of the tabs , to>help support the endwise load on the fitting but I dont like all those>holes. So I think I'll leave the tabs long, overlap them, drill one hole>through both and put one #8 screw through both. Thanks again. Ed>G.>> >From: Doug413(at)aol.com> >Reply-To: pietenpol-list(at)matronics.com> >To: pietenpol-list(at)matronics.com> >Subject: Re: Pietenpol-List: lower motor mount brackets> >Date: Mon, 25 Jun 2001 22:48:02 EDT> >> >> >In a message dated 6/25/01 4:54:58 PM Pacific Daylight Time,> >flyboy_120(at)hotmail.com writes:> >> >> > > >> > >> > >> > > Hi everyone to the experienced this is gonna sound like a dumb> >question> > > but here it goes; in the plans the lower motor mount brackets that >bolt> >to> > > the lower front corner of the fuselage each have two tabs that bend> >toward> > > the centerline of the longeron. The tabs show 3/16" holes in them. I> >can't> > > find any fastening details but I'm assuming> > > (you know what that means) that 10/32 bolts go through those holes >into> >the> > > fuselage front upright. If this is true then there's two for the outer> >half> > > and two for the inner half. It just seems to me that 1. thats a lot of> > > holes> > > drilled through a rather highly stressed 3/4" X 1"> > > piece of spruce and 2. there's not a whole lot of room for nuts and> >washers> > > in between the gussets. Sooooo are there supposed to be four through> >bolts> > > that go into those brackets from the front????? Thanks in advance.> > > Ed G.> > >> > >> > >> >> >Ed,> >> >The holes in the front tabs of the lower engine mount plates are for >small> >wood screws. I put them in the first airplane carefully, but left them >out> >of the next three. I am building a Scout now and it does not have these> >tabs> >in the design. Doug Bryant Wichita Ks> >> >>>________________________________________________________________________________Date: Tue, 26 Jun 2001 14:04:13 -0500

Original Posted By: "Ed Grentzer"
>>>In a message dated 6/25/01 4:54:58 PM Pacific Daylight Time,>flyboy_120(at)hotmail.com writes:>>> > >> >> >> > Hi everyone to the experienced this is gonna sound like a dumb >question> > but here it goes; in the plans the lower motor mount brackets that bolt >to> > the lower front corner of the fuselage each have two tabs that bend >toward> > the centerline of the longeron. The tabs show 3/16" holes in them. I >can't> > find any fastening details but I'm assuming> > (you know what that means) that 10/32 bolts go through those holes into >the> > fuselage front upright. If this is true then there's two for the outer >half> > and two for the inner half. It just seems to me that 1. thats a lot of> > holes> > drilled through a rather highly stressed 3/4" X 1"> > piece of spruce and 2. there's not a whole lot of room for nuts and >washers> > in between the gussets. Sooooo are there supposed to be four through >bolts> > that go into those brackets from the front????? Thanks in advance.> > Ed G.> >> >> >>>Ed,>>The holes in the front tabs of the lower engine mount plates are for small>wood screws. I put them in the first airplane carefully, but left them out>of the next three. I am building a Scout now and it does not have these >tabs>in the design. Doug Bryant Wichita Ks>>________________________________________________________________________________