---------------------------------------------------------- Pietenpol-List Digest Archive --- Total Messages Posted Fri 11/18/05: 4 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 12:29 AM - Re: External stringers (Mike Green) 2. 05:58 AM - are there any aeronautical engineers out there? (Douwe Blumberg) 3. 05:32 PM - Re: flour bomb design (MICHAEL SILVIUS) 4. 07:13 PM - Re: flour bomb design (Doyle Combs) ________________________________ Message 1 _____________________________________ Time: 12:29:36 AM PST US From: "Mike Green" Subject: Re: Pietenpol-List: External stringers Thanks for the advise guys. Arthur Johnson here in Australia sent me some pix of his which cleared it all up for me. Looks like I was trying to over complicate things, again!!! Mike Green Romsey, Victoria, AUSTRALIA ----- Original Message ----- From: Dick Navratil To: pietenpol-list@matronics.com Sent: Friday, November 18, 2005 2:20 PM Subject: Re: Pietenpol-List: External stringers Mike My side stringers taper down and end forward of the start of the horiz stabilizer. That makes for a flat appearance at the tail. Dick N. ----- Original Message ----- From: Mike Green To: pietenpol-list@matronics.com Sent: Wednesday, November 16, 2005 7:30 PM Subject: Pietenpol-List: External stringers Hi All, Just wanting to know what you guys have done at the tail end with the external stringers for the fabric stand off. I was trying to avoid adding the 1/4"x1/2" stringer to both sides of the vertical section of the tail to prevent having a "fat" tail post leading into a "skinny" rudder but having pondered about it for a day, seem to think it's the easiest option. Any advise/criticism welcome. Mike Green Romsey, Victoria, AUSTRALIA. ________________________________ Message 2 _____________________________________ Time: 05:58:34 AM PST US From: "Douwe Blumberg" Subject: Pietenpol-List: are there any aeronautical engineers out there? I have a design, unairplane related, that I need some aeronautical consultation with. Anybody out there? Douwe ________________________________ Message 3 _____________________________________ Time: 05:32:06 PM PST US From: "MICHAEL SILVIUS" Subject: Re: Pietenpol-List: flour bomb design --> Pietenpol-List message posted by: "MICHAEL SILVIUS" William: A few yrs back I flew w/ a man who owned several commercial fishing vessels. During Tuna season we would fly a couple hundred miles off shore in his straight tail 172 w/ an oddly pink interior. The plane was equipped with an extra tank in place of the aft seat allowing for an 8 hr operation. The idea being that we would spot the tuna from the air and mark the spot w/ a dye marker, then via marine radio direct the boats already on station to the red plume. The marker bombs consisted of an 8 inch square piece of newspaper that would contain about 3 table spoons of neon red dye and a small pebble. The marker bombs were tied up w/ a rubber band so that the selvage of the paper would be rather like a feathers on a badminton shuttle cock. The were quite accurate. Unfortunately they were also fragile. And thus when a little less than careful the marker bombs would come apart as we attempted to launch them out the open window. This of course explained the reason for the rather feminine interior dcor of the old 172. The stuff never came out of the old white vinyl interior. Michael Silvius Scarborough, Maine ----- Original Message ----- From: "Sayre, William G" Subject: Pietenpol-List: flour bomb design > --> Pietenpol-List message posted by: "Sayre, William G" > > Since there's been discussions on smoke system designs and toilet paper > bombs, has anyone played with different designs for flour bombs? I'm > thinking about quarter of a paper lunch bag full but can't decide > whether to roll it up or leave it shaped like a tear-drop. There's the > chance of rippage (pre-detonation, which rolling it up would help avoid) > versus a nice plumb of floor upon impact to consider. > > Anyone "been there, done that"? > > Bill ________________________________ Message 4 _____________________________________ Time: 07:13:48 PM PST US From: "Doyle Combs" Subject: Re: Pietenpol-List: flour bomb design --> Pietenpol-List message posted by: "Doyle Combs" We used to use flour bombs in a Texas town using a barrel. It was fun, but extremely difficult to hit that barrel. Anyway, we used brown sacks filled with about 1/3 of flour. We tied the bags with one string, loosely, so that the sack would easily spill its content when it hit the ground or the barrel. Be sure and take them out of the aircraft when going into Mexico and back. It is terribly embarrasing. Doyle Combs ----- Original Message ----- From: "MICHAEL SILVIUS" Subject: Re: Pietenpol-List: flour bomb design > --> Pietenpol-List message posted by: "MICHAEL SILVIUS" > > > William: > > A few yrs back I flew w/ a man who owned several commercial fishing > vessels. > During Tuna season we would fly a couple hundred miles off shore in his > straight tail 172 w/ an oddly pink interior. The plane was equipped with > an > extra tank in place of the aft seat allowing for an 8 hr operation. The > idea > being that we would spot the tuna from the air and mark the spot w/ a dye > marker, then via marine radio direct the boats already on station to the > red > plume. The marker bombs consisted of an 8 inch square piece of newspaper > that would contain about 3 table spoons of neon red dye and a small > pebble. > The marker bombs were tied up w/ a rubber band so that the selvage of the > paper would be rather like a feathers on a badminton shuttle cock. The > were > quite accurate. Unfortunately they were also fragile. And thus when a > little > less than careful the marker bombs would come apart as we attempted to > launch them out the open window. This of course explained the reason for > the > rather feminine interior dcor of the old 172. The stuff never came out of > the old white vinyl interior. > > Michael Silvius > > Scarborough, Maine > > > ----- Original Message ----- > From: "Sayre, William G" > To: > Sent: Thursday, November 17, 2005 2:29 PM > Subject: Pietenpol-List: flour bomb design > > >> --> Pietenpol-List message posted by: "Sayre, William G" > >> >> Since there's been discussions on smoke system designs and toilet paper >> bombs, has anyone played with different designs for flour bombs? I'm >> thinking about quarter of a paper lunch bag full but can't decide >> whether to roll it up or leave it shaped like a tear-drop. There's the >> chance of rippage (pre-detonation, which rolling it up would help avoid) >> versus a nice plumb of floor upon impact to consider. >> >> Anyone "been there, done that"? >> >> Bill > > >