---------------------------------------------------------- Zenith701801-List Digest Archive --- Total Messages Posted Sat 01/17/09: 6 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 02:41 AM - Re: Front fork weight (Harvey Richards) 2. 03:04 AM - Re: Re: Front fork weight (John Bolding) 3. 07:38 AM - Re: Front fork weight (Harvey Richards) 4. 08:35 AM - Re: Older Doors (fritz) 5. 03:33 PM - Re: Re: Front fork weight (John Bolding) 6. 10:54 PM - Re: Re: Front fork weight (JG) ________________________________ Message 1 _____________________________________ Time: 02:41:05 AM PST US Subject: Zenith701801-List: Re: Front fork weight From: "Harvey Richards" I weighed the fork/doubler,no bolts rivets axle at 3lbs6oz -------- CH 701 Read this topic online here: http://forums.matronics.com/viewtopic.php?p=225245#225245 ________________________________ Message 2 _____________________________________ Time: 03:04:52 AM PST US From: "John Bolding" Subject: Re: Zenith701801-List: Re: Front fork weight Thanks Harvey, I'll report once I weigh the possible alternative. John ----- Original Message ----- From: "Harvey Richards" Sent: Saturday, January 17, 2009 4:40 AM Subject: Zenith701801-List: Re: Front fork weight > > > I weighed the fork/doubler,no bolts rivets axle at 3lbs6oz > > -------- > CH 701 > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=225245#225245 > > > ________________________________ Message 3 _____________________________________ Time: 07:38:10 AM PST US Subject: Zenith701801-List: Re: Front fork weight From: "Harvey Richards" You're welcome John. Will be interesting to know the possible weight savings. Harvey -------- CH 701 Read this topic online here: http://forums.matronics.com/viewtopic.php?p=225290#225290 ________________________________ Message 4 _____________________________________ Time: 08:35:38 AM PST US From: "fritz" Subject: Re: Zenith701801-List: Older Doors Tommy I had the "curved, lexan doors" in my 701----completed in 1997 (not the "new" bubble doors). I loved the view with the full length Lexan doors. I did have a "hinged window" in the upper part of the door. The door window was about 6" wide and could be opened in flight. At the time these window plans were available from Zenair. The page is titled: WINDOW OPTION, but does not have a number. This feature was very nice of warm days. It increased the ventilation, added elbow room. Fritz Do not archive ----- Original Message ----- From: "Tommy Walker" Sent: Friday, January 16, 2009 9:30 PM Subject: Zenith701801-List: Older Doors > > > I have a circa 2001 kit that I'm building. It has the older flat side > doors with metal sides and upper window. > > I've seen a few doors like this that were "bubbled." I was wondering if > anyone had any plans or ideas about how to form a bubble door out of the > older style? > > I think Skyshop used to supply a door like this, but I understand they > don't sell to zenith builders any longer. > > Any comments/ideas appreciated. > > Tommy Walker in Alabama. > twalker(at)cableone.net > > Do Not Archive > > -------- > Tommy Walker > N8701 - Anniston, AL > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=225211#225211 > > > ________________________________ Message 5 _____________________________________ Time: 03:33:25 PM PST US From: "John Bolding" Subject: Re: Zenith701801-List: Re: Front fork weight Harvey, Here's what I found, The 701 fork/doubler is 3# 6oz, a fork from a C150 weighs 2#2oz. ASSUMING you can get the axels to the same weight there's 1#4 oz. The 150 fork slips right on the 701 nosewheel tube so nothing to build there, the tube WILL need to be a little longer to make up for the slightly taller tire you're replacing but that extra tube length will also weigh less than the 3/16" plate that the standard fork/doubler bolts to that you no longer need. The Tundra tire/tube weighs 10#9oz , a 6:00x 6 tire and tube is 8# 9 oz another 2# potential In the last year I've weighed a half dozen or so different 6:00x6" wheel/brake combo's, including a couple from Matco. The lightest I've run into so far have been the older Goodyears that were used on Champs/Cubs etc., brake parts are a bit scarce but I got a NICE set on ebay for $200 with extra pads. They weigh 3# less (for 2) than the Matco's. So by changing things a bit you can save 4 1/2# on the wheels, 2# on the front tire and 1# + on the fork for (drum roll please) 7 1/2# +. It's HARD to knock weight off a 701 !!! My limit is $100 a pound, here's 7 POUNDS that costs LESS. Boeing/Airbus would KILL for that! Two things lead me to believe you don't need a tundra tire on the front of a 701 (other than it LOOKS cool) First is the fact that I watched Grant Rappe taxi around the ultralight area with the nosewheel in the air, second is I've landed on the Texas beach, cow pastures, dirt roads,sand bars etc 2-300 times in a taildragger airplane with 5:00 x5's. I KNOW it's an apple and an orange but unless you have a 701 that's out of CG toward the nose I know I can live with the slightly smaller nosewheel. It also brings up the question of yaw. Hopefully a smaller tire will produce less yaw instability than the larger one but that's just a WAG. I KNOW it will have less drag. I'm NOT recommending anything, just reporting my homework. LO&SLO John ----- Original Message ----- From: "Harvey Richards" Sent: Saturday, January 17, 2009 4:40 AM Subject: Zenith701801-List: Re: Front fork weight > > > I weighed the fork/doubler,no bolts rivets axle at 3lbs6oz > > -------- > CH 701 > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=225245#225245 > > > ________________________________ Message 6 _____________________________________ Time: 10:54:38 PM PST US Subject: Re: Zenith701801-List: Re: Front fork weight From: JG John B Good to see that someone is really working on reducing weight. It does make a difference to performance. Every little bit helps. Carry on dieting...... JohnG On Sun, Jan 18, 2009 at 9:31 AM, John Bolding wrote: > jnbolding1@teleshare.net> > > Harvey, Here's what I found, > > The 701 fork/doubler is 3# 6oz, a fork from a C150 weighs 2#2oz. ASSUMING > you can get the axels to the same weight there's 1#4 oz. > The 150 fork slips right on the 701 nosewheel tube so nothing to build > there, the tube WILL need to be a little longer to make up for the slightly > taller tire you're replacing but that extra tube length will also weigh less > than the 3/16" plate that the standard fork/doubler bolts to that you no > longer need. > > The Tundra tire/tube weighs 10#9oz , a 6:00x 6 tire and tube is 8# 9 oz > another 2# potential > > In the last year I've weighed a half dozen or so different 6:00x6" > wheel/brake combo's, including a couple from Matco. The lightest I've run > into so far have been the older Goodyears that were used on Champs/Cubs > etc., brake parts are a bit scarce but I got a NICE set on ebay for $200 > with extra pads. They weigh 3# less (for 2) than the Matco's. So by > changing things a bit you can save 4 1/2# on the wheels, 2# on the front > tire and 1# + on the fork for (drum roll please) 7 1/2# +. > It's HARD to knock weight off a 701 !!! My limit is $100 a pound, here's > 7 POUNDS that costs LESS. Boeing/Airbus would KILL for that! > > > Two things lead me to believe you don't need a tundra tire on the front of > a 701 (other than it LOOKS cool) First is the fact that I watched Grant > Rappe taxi around the ultralight area with the nosewheel in the air, second > is I've landed on the Texas beach, cow pastures, dirt roads,sand bars etc > 2-300 times in a taildragger airplane with 5:00 x5's. I KNOW it's an apple > and an orange but unless you have a 701 that's out of CG toward the nose I > know I can live with the slightly smaller nosewheel. > It also brings up the question of yaw. Hopefully a smaller tire will > produce less yaw instability than the larger one but that's just a WAG. I > KNOW it will have less drag. > I'm NOT recommending anything, just reporting my homework. > LO&SLO John > > > ----- Original Message ----- From: "Harvey Richards" < > lisa.richards@ns.sympatico.ca> > To: > Sent: Saturday, January 17, 2009 4:40 AM > Subject: Zenith701801-List: Re: Front fork weight > > >> lisa.richards@ns.sympatico.ca> >> >> I weighed the fork/doubler,no bolts rivets axle at 3lbs6oz >> >> -------- >> CH 701 >> >> >> >> >> Read this topic online here: >> >> http://forums.matronics.com/viewtopic.php?p=225245#225245 >> >> >> >> >> >> >> >> >> >> >> >> >> > > ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message zenith701801-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Zenith701801-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/zenith701801-list Browse Digests http://www.matronics.com/digest/zenith701801-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.