May 2012 Blog Posts (25)

Ran the Viking for the first time today on the STOL CH 701

Viking Running:

Sorry for the poor quality video. Good camera is broken.



Added by Steven Winn on May 31, 2012 at 7:00pm — 3 Comments

Engine ECU installed

Received the ECU yesterday, installed today. Might get to run the engine…


Added by Steven Winn on May 30, 2012 at 9:15pm — No Comments

Short field safe ??


I am acquiring an amphibious 701 with Rotax 914 turbo, and constant speed prop. Can't wait to get to know it.


I live on a lake , so water ops are no problem. But, need some advice on possible land ops.

 My property has a 300' stretch that could be used as a strip. Wires at one end will mean one way ops.  25' trees at other end, about 50' beyond threshold.

 I am a 4500 hour, Comml & Inst guy with lots of experience on grass. But zero time in a 701 ,…


Added by buz heuchan on May 29, 2012 at 9:22am — 5 Comments

Rudder cable fairings

Put the aft cable fairleads inside the fuselage. The last pic doesn't show it, but the cable is clear all the way round (no…


Added by Steven Winn on May 28, 2012 at 8:34pm — 1 Comment

6 Cylinder UL power engine in CH750

Since the Z factory does not have a 750 demonstrator with UL power, and UL power now has six cylinder engines available, would'nt it be great to see the factory put toghether a "Super STOL 750" with 150 HP?

Just wishing....I am sure Sebastien would do it if I sent him a check!


It would also be really cool to see a cross country "Non STOL" version of the 750 with a new aerodynamic high speed wing.  This would give builders a high wing alternative to the CH650. 

Added by Mike Hammond on May 28, 2012 at 7:50pm — 6 Comments

Dorsal Fin

Made a rib shaped like the rudder to hold the dorsal fin in shape. Needs trimming for the elevator to finish…


Added by Steven Winn on May 26, 2012 at 9:44pm — No Comments

Cowling Installation

Got the cowling fitted.

Added by Steven Winn on May 24, 2012 at 8:48pm — 3 Comments

Zenith in Tulsa

Roger and I were in Tulsa earlier this week to show our planes at EAA Chapter 10's monthly meeting.  We flew both the Zenith CH 650 and the STOL…


Added by Sebastien Heintz on May 24, 2012 at 9:30am — 3 Comments

Engine swap

Hello all.

In 1997 when I first began building my CH601 HDS tail wheel airplane the hot engine to use was the EA-81 Subaru. So I obtained one of these engines. I was also told by many that an Lycoming 0235 would be way too heavy. So installed the Subie. Engine has ran well for over 7 years but has had problems with keeping rings in it. Keep loosing compression, replaced rings 2 twice after the intical rebuild. Also had heads rebuilt by Ram. Engine also ran hot in the 220 range. I…


Added by David New on May 23, 2012 at 2:00pm — 5 Comments

Added Head Room For An Old CH 701

(Last Revision May 20, 2012)

The added roof space on the new CH 750 at SNF 2012 attracted great attention.

What about CH 701 community?

There are at least two members of this group that have built/modified their CH 701 with added head room, as well as a smoother air flow over…


Added by Chumphol Sirinavin on May 20, 2012 at 10:34am — 24 Comments

Viking wiring

Well after replacing the nose strut and getting the engine checked over, I have changed the entire wireing system over to the Viking wire moduel. Engine now starts much better than before. I can't figure out just why the ECU didn't like the system that I started out with. At this point, I don't care why, just that it works now! And it does.

I would like to thank Jan, Casey, Kira and the rest for all the work they did on my engine after the prop strike. One tough…


Added by Dan Stanton on May 20, 2012 at 7:18am — 2 Comments

Cyclonic breather

This is my first attempt at making a cyclonic breather. Made from a 5/16 metal fuel filter. Removed the filter.

Whacked a ball brng…


Added by Steven Winn on May 17, 2012 at 9:00pm — 3 Comments

Door Air Deflectors for the STOL CH 750

Getting ready for summer (and the hot muggy weather that we've come to expect in central Missouri), we decided to remove the doors of our STOL CH 750 once again.

We decided to add air deflectors along the front of the cabin / door frame to maximize comfort with the doors off.  Air (or wind) deflectors are common on European cars - where many folks drive around with their windows open (many cars there are not equipped…


Added by Sebastien Heintz on May 16, 2012 at 10:30am — 5 Comments

Received Reduction Gbox

Received reduction gbox, oil cooler hoses, and radiator hoses yesterday 5/15/12. In order to install radiator, had to remove a section of…


Added by Steven Winn on May 16, 2012 at 8:28am — No Comments

I've advanced back to January

Thanks to my screwing up bad enough that I had to remake one wing spar and the center spar, and with life in general getting in the way of my working on my plane, I am now back to where I was the end of January.  I just completed making the new spars (match drilled and reamed to 1/4" only until spars are riveted together).  I did not re-use any pieces of the original spars because everything was drilled to final size when I screwed up and I did not want to chance trying to match drill some…


Added by Tim Smart on May 15, 2012 at 1:37pm — No Comments

Oops! I've messed up!

After drilling the horizontal stabilizer to A4 size, I disassembled to begin deburring and corrosion control. When I removed the skins and starting breaking down the skeleton, I saw where I had damaged 3 of the 4 rear ribs during the drilling. I don't think these ribs would pass inspection (certainly not mine!) and I'm ordering replacement ribs this week before proceeding on this assembly. Wondering if anyone else has had this issue?

Added by David A. Judkins on May 13, 2012 at 2:47pm — 6 Comments

Still waiting on Viking Parts

I paid in full back in July 2011 for a viking engine FWF for CH701.

I was promised delivery in Oct 2011.

Oct 2011 came and went. Communications with Viking promised Dec 2011 delivery.

Dec 2011 came and went. More communications with Viking.Finally received engine in Feb 2012. Engine was incomplete. Missing items include: ECU computer, reduction gbox, oil…


Added by Steven Winn on May 10, 2012 at 6:36pm — 9 Comments

CH 750 Control Mixer Bearing 2nd Edition Rev. 1 QUESTION

the control mixer bearing comes pre drilled and the attachment holes are offset from the Mixer tube hole. One set of holes is far enough away from the tab on the control mixer that the tab will not "stop" on the bolt heads. Installed on the other side of the fuselage the bolt heads will stop or limit the control mixer travel. The updated photo assembly guide clearly shows the tab between stops. The plans show the tab not between the bolts that would limit travel. Anyone asked the factory…


Added by Allen Lynn Wagers on May 9, 2012 at 3:53pm — 2 Comments

NAFCO loans

NAFCO no longer underwrites loans for Zodiacs. They will not underwrite a loan to refinance an existing loan  they previously underwrote if the a/c is a Zodiac. They call this a policy change.

Added by charles hughes on May 9, 2012 at 3:30pm — No Comments

Zodiak 601 Low profile windshield (Speedster) conversion

Hello Zenairers,

I have an older Zodiak and want to install a low profile windshield on it. They call it the Speedster.

I would love to convers with someone who has flowen the speedster and find out about it's pro's and con's.

I was thinking that i would profere a lower profile than the ones that you see in the pictures on the internet. I understand the cubby hole in the back has to be covered.

I was wondering about the drag and wind noise and the aircraft…


Added by Tim Thompson on May 6, 2012 at 5:46pm — 1 Comment

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