---------------------------------------------------------- Zenith-List Digest Archive --- Total Messages Posted Sun 10/05/03: 8 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 03:15 AM - 701 Czech kit (Dirk Slabbert) 2. 06:42 AM - Re: 701 Czech kit (Robert Hillebrand) 3. 08:01 AM - Re: 701 Stabilizer mounting details (Ken Szewc) 4. 04:03 PM - Flight Testing progress update (n282rs) 5. 05:19 PM - Re: Flight Testing progress update (TOMGILES@aol.com) 6. 06:57 PM - Re: Flight Testing progress update (Benford2@aol.com) 7. 07:45 PM - Re: Flight Testing progress update (n282rs) 8. 07:52 PM - Re: Flight Testing progress update (Benford2@aol.com) ________________________________ Message 1 _____________________________________ Time: 03:15:43 AM PST US From: "Dirk Slabbert" Subject: Zenith-List: 701 Czech kit --> Zenith-List message posted by: "Dirk Slabbert" Does anyone have info regarding the Zenair 701 made in Czehoslovakia kit? ( Czech Aircraft Works ) I am considering their quick build options. Thanks, Dirk in Africa.
Does anyone have info regarding the Zenair 701 made in Czehoslovakia kit? ( Czech Aircraft Works )
I am considering their quick build options.
Thanks,
Dirk in Africa.
________________________________ Message 2 _____________________________________ Time: 06:42:19 AM PST US From: Robert Hillebrand Subject: Re: Zenith-List: 701 Czech kit --> Zenith-List message posted by: Robert Hillebrand --0-929510382-1065361304=:51624 I will tell you one thing about the czech plane parts they are 101%. I have bought several thing including the bubble doors and they are fine ,fine parts as far as quality goes. I think the czech planes are sponsored by Zenith so they should control all quality concerns. .............Bo, Illinois701 scratch builder Dirk Slabbert wrote: --> Zenith-List message posted by: "Dirk Slabbert" Does anyone have info regarding the Zenair 701 made in Czehoslovakia kit? ( Czech Aircraft Works ) I am considering their quick build options. Thanks, Dirk in Africa. Does anyone have info regarding the Zenair 701 made in Czehoslovakia kit? ( Czech Aircraft Works ) I am considering their quick build options. Thanks, Dirk in Africa. --------------------------------- --0-929510382-1065361304=:51624
I will tell you one thing about the czech plane parts they are 101%. I have bought several thing including the bubble doors and they are  fine ,fine parts as far as quality goes.
I think the czech planes are sponsored by Zenith so they should control all quality concerns. .............Bo, Illinois701 scratch builder
Dirk Slabbert <dslabbert@worldonline.co.za> wrote:
--> Zenith-List message posted by: "Dirk Slabbert"


Does anyone have info regarding the Zenair 701 made in Czehoslovakia
kit? ( Czech Aircraft Works )
I am considering their quick build options.
Thanks,
Dirk in Africa.







Does anyone have info
regarding the
Zenair 701 made in Czehoslovakia kit? ( Czech Aircraft Works
)

I am considering their
quick build
options.

Thanks,

--0-929510382-1065361304=:51624-- ________________________________ Message 3 _____________________________________ Time: 08:01:10 AM PST US From: "Ken Szewc" Subject: Re: Zenith-List: 701 Stabilizer mounting details --> Zenith-List message posted by: "Ken Szewc" Never mind the 801 section on ZACs builders section of the website has a good draft assembly manual for this. Ken ----- Original Message ----- From: "Ken Szewc" Subject: Zenith-List: 701 Stabilizer mounting details > --> Zenith-List message posted by: "Ken Szewc" > > > I cannot seem to find the details of how to connect the stabilizer to > the fuselage. The rudder is detailed very nicely. Is there a page in the > plans that I am missing? > All of the drawings seem to show the top level with the fuselage. Is > this correct? > How much distance off of the fuselage should it be? > > > Thanks in advance > > Ken > > > > > > > >
I cannot seem to find the details of > how to connect > the stabilizer to the fuselage. The rudder is detailed very nicely. Is > there a > page in the plans that I am missing?
>
All of the drawings seem to show the > top level with > the fuselage. Is this correct?
>
How much distance off of the fuselage > should it > be?
>
 
>
 
>
Thanks in advance
>
 
>
Ken
> > ________________________________ Message 4 _____________________________________ Time: 04:03:31 PM PST US From: "n282rs" Subject: Zenith-List: Flight Testing progress update --> Zenith-List message posted by: "n282rs" Hi All Since it's kind of quiet this weekend, I thought I would give an update on my flight testing. I now have 3.3 hours of flight time. It's been slow, but I think I'm getting some of the bugs worked out. Most of my flights have been done with the runway in sight. Friday, I got up the nerve to fly to another airport about 10 miles away. It was a bit scary, but everything went well. I've mostly been working on getting up to a reasonable airspeed and getting the engine oil temperature & CHT down. Most of this has been adding ramps to direct air through the oil cooler and plugging leaks in the baffles. I have tweaked a few things on the prop and engine so that my max level speed is around 105 mph and cruise is about 95 mph. If you remember my first flight, it was all I could do to maintain 75 mph. I can still add a little more pitch to the prop, but I'm getting to the end of it's limits. I have a couple of different ways to go when I run out of pitch: 1. Get a different prop, 2. Start chasing drag, and of course the is always 3. Get a bigger engine and prop. I'm not ready for #3 yet although it's sitting in the back of my mind waiting. I've heard lots of stories about different props making massive differences in performance. I had a different prop. The company that makes the redrive also make Culver props. They said my 68" PowerFin was too small and recommended a 74". Since I have the ground clearance, I had them send me one of theirs. During ground testing, I found that the Culver seemed to have more thrust that the PowerFin. So much more that it pulled one of the mains off the ground. Since concrete is way harder than wood, the Culver is now splinters. Which leads me to a warning for those doing static tests: Tie your tail down, even if you have a nose gear. So I continue testing with the PowerFin until I decide if I want to order another Culver. I started thinking about reducing some of the drag as the HD has plenty to reduce. I could cover the openings around the horizontal stab, fasten the wing access cover down(they lift up in flight about 1/4-1/2"), enclose the main gear box, and install wheel pants. I was also wondering if anyone has thought about installing VG's on the canopy. There's plenty of comments about air separation around the back of the canopy in the archives. Has anyone ordered VG's from this company? http://abianconi.hypermart.net/Vortex.htm Anyone have any comments on this? Randy Stout VW powered CH 601 HD n282rs@sbcglobal.net http://www.geocities.com/r5t0ut21/index.html
Hi All
 
Since it's kind of quiet this weekend, I thought I would give an update on my flight testing.
 
I now have 3.3 hours of flight time. It's been slow, but I think I'm getting some of the bugs worked out. Most of my flights have been done with the runway in sight. Friday, I got up the nerve to fly to another airport about 10 miles away. It was a bit scary, but everything went well. 
 
I've mostly been working on getting up to a reasonable airspeed and getting the engine oil temperature & CHT down. Most of this has been adding ramps to direct air through the oil cooler and plugging leaks in the baffles.
 
I have tweaked a few things on the prop and engine so that my max level speed is around 105 mph and cruise is about 95 mph. If you remember my first flight, it was all I could do to maintain 75 mph. I can still add a little more pitch to the prop, but I'm getting to the end of it's limits. I have a couple of different ways to go when I run out of pitch: 1. Get a different prop, 2. Start chasing drag, and of course the is always 3. Get a bigger engine and prop.
 
I'm not ready for #3 yet although it's sitting in the back of my mind waiting.
 
I've heard lots of stories about different props making massive differences in performance. I had a different prop. The company that makes the redrive also make Culver props. They said my 68" PowerFin was too small and recommended a 74". Since I have the ground clearance, I had them send me one of theirs.  During ground testing, I found that the Culver seemed to have more thrust that the PowerFin. So much more that it pulled one of the mains off the ground. Since concrete is way harder than wood, the Culver is now splinters. Which leads me to a warning for those doing static tests: Tie your tail down, even if you have a nose gear. So I continue testing with the PowerFin until I decide if I want to order another Culver.
 
I started thinking about reducing some of the drag as the HD has plenty to reduce. I could cover the openings around the horizontal stab, fasten the wing access cover down(they lift up in flight about 1/4-1/2"), enclose the main gear box, and install wheel pants. I was also wondering if anyone has thought about installing VG's on the canopy. There's plenty of comments about air separation around the back of the canopy in the archives. Has anyone ordered VG's from this company? http://abianconi.hyper= mart.net/Vortex.htm Anyone have any comments on this?
 
 
 
________________________________ Message 5 _____________________________________ Time: 05:19:26 PM PST US From: TOMGILES@aol.com Subject: Re: Zenith-List: Flight Testing progress update --> Zenith-List message posted by: TOMGILES@aol.com I made some vortex generators and taped them on the canopy with no noticeable results. They were made from regular angle and put various places. Maybe these weren't correctly made. There is a definite problem at the back of the canopy, about a one foot radius from the rear trailing edge. ________________________________ Message 6 _____________________________________ Time: 06:57:32 PM PST US From: Benford2@aol.com Subject: Re: Zenith-List: Flight Testing progress update --> Zenith-List message posted by: Benford2@aol.com In a message dated 10/5/2003 5:17:14 PM Mountain Daylight Time, n282rs@sbcglobal.net writes: > ground testing, I found that the > Culver seemed to have more thrust that the PowerFin. So much more that > it pulled one of the mains off the ground. Since concrete is way harder > than wood, the Culver is now splinters. Which leads me to a warning for > those doing static tests: Tie your tail down, even if you have a nose > gear. So I continue testing with the PowerFin until I decide if I want > to order another Culver. > Tell me more on how a static run up lifted a main gear off the ground to the point of having the prop hit the ground. How much clearance did you have just sitting there with the motor not running???? You must have 5 degrees or more of down thrust built into your mount to suck the nose of the plane into a nose down attitude. Ben Haas N801BH. In a message dated 10/5/2003 5:17:14 PM Mountain Dayli= ght Time, n282rs@sbcglobal.net writes:


ground testing, I found that t= he
Culver seemed to have more thrust that the PowerFin. So much more that
it pulled one of the mains off the ground. Since concrete is way harder
than wood, the Culver is now splinters. Which leads me to a warning for
those doing static tests: Tie your tail down, even if you have a nose
gear. So I continue testing with the PowerFin until I decide if I want
to order another Culver.


Tell me more on how a static run up lifted a main gear off the ground to the= point of having the prop hit the ground. How much clearance did you have ju= st sitting there with the motor not running???? You must have 5 degrees or m= ore  of down thrust built into your mount to suck the nose of the plane= into a nose down attitude.

Ben Haas N801BH. ________________________________ Message 7 _____________________________________ Time: 07:45:28 PM PST US From: "n282rs" Subject: Re: Zenith-List: Flight Testing progress update --> Zenith-List message posted by: "n282rs" The problem starts with no tie downs near my hangar. In order to tie it down I have to taxi off to a grassy area and search for them. When I get back to the hangar, the prop is green from cutting grass that's 1 1/2 feet tall, so I usually chock the mains, and put a broom stick in the nose wheel. I have my hand on the throttle and a clear path in front of me just in case the broom stick doesn't hold. Chocks and brakes alone will not hold the plane still. I have done this many times with the PowerFin and it has never been a problem. The Culver apparently produced more thrust and since the nose gear was locked, the plane started to wheelbarrow over. Probably, the only reason it got to the point of hitting the prop was because my head was buried in the cockpit, counting tick marks on the tach. When I had realized that something was wrong, I couldn't get the throttle out fast enough. I built the mount with 0 degrees vertical offset and the Culver had 9" clearance. Randy > Tell me more on how a static run up lifted a main gear off the ground to the > point of having the prop hit the ground. How much clearance did you have just > sitting there with the motor not running???? You must have 5 degrees or more > of down thrust built into your mount to suck the nose of the plane into a nose > down attitude. > > Ben Haas N801BH. > ________________________________ Message 8 _____________________________________ Time: 07:52:35 PM PST US From: Benford2@aol.com Subject: Re: Zenith-List: Flight Testing progress update --> Zenith-List message posted by: Benford2@aol.com In a message dated 10/5/2003 8:46:12 PM Mountain Daylight Time, n282rs@sbcglobal.net writes: > > I built the mount with 0 degrees vertical offset and the Culver had 9" > clearance. > > Randy > > WOW. That is some SERIOUS thrust to pick up the tail of the plane. Thanks for the heads up on ground running. Good luck on your flight testing. Ben Haas N801BH. In a message dated 10/5/2003 8:46:12 PM Mountain Dayli= ght Time, n282rs@sbcglobal.net writes:



I built the mount with 0 degrees vertical offset and the Culver had 9"
clearance.

Randy



WOW. That is some SERIOUS thrust to pick up the tail of the plane. Thanks fo= r the heads up on ground running. Good luck on your flight testing.

Ben Haas N801BH.