Daniel Niendorff
  • Male
  • Knoxville, TN
  • United States
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Daniel Niendorff's Friends

  • Matt Hoecker
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  • Dave Parker
  • William D. Phillips
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Daniel Niendorff's Discussions

Wing strut fairings

Started this discussion. Last reply by David J. Beaulieu May 5. 7 Replies

I am experimenting with fairings for my wing strut attach points.My method is to design the fairing in solidworks, and then print male and female mold with a small offset.  The offset is designed to…Continue

Oil Cooler Plenum

Started this discussion. Last reply by Daniel Niendorff Aug 23, 2020. 2 Replies

I made this plenum for my firewall mounted oil cooler.  Measures angles…Continue

 

Daniel Niendorff's Page

Latest Activity

Daniel Niendorff posted a video

Zenith 801 Amphib Water Landing

Landing on Douglas Lake in East TN. Zenith 801 on amphibious floats.
Jul 3
Matt Hoecker left a comment for Daniel Niendorff
"Thank you Daniel!  The original builder did a great job on it."
Jun 7
A photo by Daniel Niendorff was featured

N801PZ - on Amphibs

I got my 801 flying today with Zenair 2500A amphibs, and a Hartzell C/S prop.
May 17
Daniel Niendorff posted a video

Zenith 801 with Zenair 2500 amphib floats Hartzell C/S prop

This is a video of my first day of flying the 801 with the upgrades (amphibs/CS prop).
May 16
Daniel Niendorff posted a video

Smoke leak test for zenith 2500A amphib floats

I used a smoke test for initial leak testing on my float build. It seemed to do a good job of detecting small leaks.
Apr 23
Daniel Niendorff posted a video

Zenith 801 float water rudder retract handle mechanism

This is the handle that I set up to retract the water rudders on my zenith 801 floats. It locks over center, so all one needs to do is flip the handle over ...
Apr 10
Daniel Niendorff posted a status
"Float gear indicator lights, hydraulic pump & lines all set. Water rudder steering linkage done - working on water rudder retract mechanism"
Apr 6
Daniel Niendorff posted a status
"Float brake lines run, and more wiring installed for limit switches and gear pump....."
Mar 18
Daniel Niendorff posted a discussion

Wing strut fairings

I am experimenting with fairings for my wing strut attach points.My method is to design the fairing in solidworks, and then print male and female mold with a small offset.  The offset is designed to be enough for gelcoat for the mold, and the layup of gelcoat and chop strand matt plus resin.  I made the prints about the maximum size I could do on my 3-d printer (quidi x-plus).  They will take a little sanding to smooth out, but I like what I have so far.  Each mold (M and F) is about a 30 hour…See More
Mar 18
Daniel Niendorff posted a status
"Float hydraulic gear test successful. Floats are now off supports and rolling on their own wheels."
Mar 7
Daniel Niendorff posted a status
"Float gear position limit switches mounted, pulling wire."
Mar 2
Daniel Niendorff posted a status
"Finished painting my amphibs floats. Hydraulics all installed now. Still need to wire gear position switches. Waiting on parts...."
Feb 19
Daniel Niendorff posted a discussion

Oil Cooler Plenum

I made this plenum for my firewall mounted oil cooler.  Measures angles and offset,  then mocked up in solid works followed by 3d printing.  Then sprayed with gel coat, and laid up glass after mold prep.  Fits like a glove.See More
Aug 23, 2020
Daniel Niendorff posted a blog post

3d Magic

I think it is worthwhile to share some of my experiences here on the forum about a recent project that I did.  So here goes....The idea for this project began several years ago.  It started when I first got my 801 up and running.  Zenith/Zenair had changed the cowl at some point, and when I ordered my FWF kit, I got the new cowl.  The cowl fit well, and most importantly cooled well in flight.  But it was quite difficult to fit the air intake.  Basically, I did not fit.  The supplied air filter…See More
Jul 24, 2020
Daniel Niendorff posted a photo
Jun 3, 2020
Daniel Niendorff posted photos
May 17, 2020

Profile Information

Aircraft Model
STOL CH 801
Project Status
Flying
Building From
Kit
Engine installed (or plan to install)
Other
Building Experience
Have already built an airplane
Flying Experience
Private Pilot
Building and Flying Info / Your Profession / Other Background Info
Built a STOL CH-801 from a kit. I purchased the partially completed kit from another builder in 2013. It flew in 2017. Now building amphibious floats for the 801.
Home Airport (ie. KMYJ)
TN98

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Daniel Niendorff's Blog

3d Magic

Posted on July 24, 2020 at 8:30pm 5 Comments

I think it is worthwhile to share some of my experiences here on the forum about a recent project that I did.  So here goes....

The idea for this project began several years ago.  It started when I first got my 801 up and running.  Zenith/Zenair had changed the cowl at some point, and when I ordered my FWF kit, I got the new cowl.  The cowl fit well, and most importantly cooled well in flight.  But it was quite difficult to fit the air intake.  Basically, I did not fit.  The…

Continue

Rudder Trim

Posted on September 23, 2019 at 7:51pm 2 Comments

I have spent a little time experimenting with rudder trim, and I think it would be worthwhile to share my experiences with the group.  I know that most of you are probably saying "Why?" to the concept of rudder trim for our STOL aircraft.  In most cases, it is probably not necessary.  However, I found it useful.  I'll explain.....

The Aerosport IO-375 makes 195 hp, and lots of P-factor.  With that power plant, one can point the nose up and go.  In the 801, I can also haul a…

Continue

Comment Wall (10 comments)

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At 12:43pm on June 7, 2021, Matt Hoecker said…

Thank you Daniel!  The original builder did a great job on it.

At 4:15pm on February 28, 2020, Brian Walker said…

Thanks Dan - I have a CH640 which has the same design in that area as the CH801.   I have a IO-360 and had to move the engine forward 5" (to make room for the prop governor) so I'm guessing I'll need 13-15 pucks.  I ordered 18 so I have enough to experiment with.  My pucks and sleeves will be here on 3/2/20.  I'll let you know what I come up with.  Thanks !  

At 12:48am on May 1, 2019, William D. Phillips said…

Dan, a couple questions please. Did you build the  flaporon attachment bearing bellcrank that you show in your photos? I want to make similar for mine. Do you have drawings, etc? Also, I am installing seat adjustment rails for the 750 in my 801. If you are interested I can send you photos and data. Best regards, Bill Phillips 

At 12:55am on April 25, 2019, William D. Phillips said…

Hi Dan, I’m not on the pad very often so I missed you in March. I live in middle Georgia and building a 801. I built a 601 XLB and a RV 8-a that I fly out of Kopn. You would be welcome to see my 801 build most anytime. Bill Phillips 

At 1:48pm on January 20, 2018, Jerry said…

Hi Daniel  how much experience do u have with floats or know of someone who does 

just sold a cub on floats want to put maybe 2000s on my 801 in process

of putting 31s on main  and 29 on nose now  phone nu is 2509440038 if u want to call me

At 12:08pm on December 17, 2017, Erturk Kocalar said…

Hi Dan,

Congrats on your 801.  The flight with the passengers is priceless.

I'm sure I'll bug you for build questions :)

Take care and enjoy your 801.

Erturk

At 7:37am on February 3, 2017, Normand Lambert said…

Hi Daniel,

Thanks for your comment... I keep updating my status but sometimes Wonder if it matters much ... Anyway, lots of fun working on these planes. Good thing I got my CH701 flying while building the other ones... Keep at it, it will FLY !

Regards,

Norm 

At 6:50am on June 24, 2013, Daniel Niendorff said…
Hi Keith,
Yes I indeed, looks like we both missed our chance on the FWF recently posted. Best of luck to the Canadian who got it, but I would have loved to add it to my plane. I guess I'll have to keep looking. Glad to hear you connected to a good group. Our local eaa chapter here is similar. I just came back from the fly-in at the zenith factory in Mexico Missouri. No 801s showed up........ But was still a great trip. I'm making slow progress. Just about ready for riveting the fuselage sections together.
At 7:47pm on June 22, 2013, keith mcewan said…

Daniel, I see that you where after the firewall forward gear being sold in Utah, as I was !!. Would have been a great way to get a head start on the build but it's going to Canada I believe, I have joined the Sport Aircraft association of Australia which will help with licensing and testing etc on the 801. Also joining the Sport aircraft Builders club of Western Australia , small bitumen airstrip an hour away. No build progress as we have been 4WDriving up north for 2 weeks and still researching.  Keith McEwan

At 8:29pm on April 21, 2013, keith mcewan said…

Daniel, Thanks for the contact, I'm glad there are others on the same journey. I've never had two wings sitting in the lounge room before but they look good.  My intention is a relaxed build over a couple of years to allow time to learn the new skills needed and do as good a job as I can, being a first timer.Mine is complete except for the fwf and avionics, cabin trim etc, it has been assembled at one time. Look forward to keeping in touch. Keith Mcewan

 
 
 

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