John Austin
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  • Crossville, TN
  • United States
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John Austin's Discussions

Zenith Model-Specific Featured Topics

Started this discussion. Last reply by John Austin on Saturday. 8 Replies

This is a request to all builders to nominate already existing Topics within your model-specific forum (STOL CH701, STOL CH750, STOL CH801, CH 601/650 and Zenair Floats) for inclusion in the…Continue

STOL CH750 HomeBuiltHelp DVD Corrections

Started this discussion. Last reply by Doug MacDonald on Friday. 2 Replies

The HomeBuiltHelp DVD's are most helpful in construction of the STOL CH750 to serve as a general guide to the construction process. However, this DVD series was filmed fairly early in the history of…Continue

Greetings from the Zenith.aero Forum Moderator!

Started this discussion. Last reply by John Austin on Saturday. 8 Replies

As an active forum participant, Sebastien has asked me to serve as a volunteer forum moderator. I have found Zenith builders to be a positive and helpful group and have made many new friends through…Continue

iFly 720 GPS

Started this discussion. Last reply by Rick George May 11. 13 Replies

Had a spectacular flight to Chilhowee gliderport in my 750 yesterday. However, the "severe clear" conditions gave me fits with my Android tablet! It was very difficult to see the screen despite an…Continue

 

John Austin's Page

Latest Activity

A discussion started by John Austin was featured

Zenith Model-Specific Featured Topics

This is a request to all builders to nominate already existing Topics within your model-specific forum (STOL CH701, STOL CH750, STOL CH801, CH 601/650 and Zenair Floats) for inclusion in the following list. Topics concerning common errors, corrections to supplemental sources (i.e., HomebuiltHelp DVD's, etc.), customization and modifications and any other topic that is of general interest for that model would be likely candidates. You may simply respond to this thread with the Topic name (and a…See More
Saturday
8 Comments
A discussion started by John Austin was featured

Greetings from the Zenith.aero Forum Moderator!

As an active forum participant, Sebastien has asked me to serve as a volunteer forum moderator. I have found Zenith builders to be a positive and helpful group and have made many new friends through this site. This is definitely an "on the job training" experience for me so please bear with me. At the moment, it appears I have the ability to feature discussions (i.e., a "sticky") in the Open Forum, but not in specific model forums. Hopefully, this can be expanded to all forums. For the moment,…See More
Wednesday
8 Comments
John Austin posted a discussion

iFly 720 GPS

Had a spectacular flight to Chilhowee gliderport in my 750 yesterday. However, the "severe clear" conditions gave me fits with my Android tablet! It was very difficult to see the screen despite an anti-glare screen protector: the excellent visibility of the 750 floods the cockpit with sunlight and therein lies the problem! I've been a long-term user of Control Vision's AnyWhereMap moving map and as of late, their AnyWhereMap "Freedom" app. However, CV has temporarily suspended support to their…See More
Apr 14
13 Comments
John Austin posted a discussion

AeroLED Microsun Landing/Recognition Light

To complement my 750's wingtip strobes (Aveoflash "Powerburst"), I decided to install a LED landing/recognition light - primarily for recognition; it would be rare that I would need a landing light. Although it is doubtful I'll ever reinstall my slats, I did not want to do a leading-edge wing light as that would be blocked if the slats are ever reinstalled. Some mount lights on the struts or nosegear leg, but I decided a cowl mount would look better and not contribute additional drag - as if…See More
Apr 2
2 Comments
John Austin posted a photo
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Spectacular Winter Day!

We've had a few really spectacular days this winter. You can see the east ridge of the Sequatchie Valley in the background - perfect scenery for "low and slow!"
Feb 12
2 Comments
John Austin posted a discussion

Borescope?

Mike Busch presented an excellent EAA webinar recently on "How Healthy is Your Engine?" For those who don't know, Mike is an A&P-IA and a highly respected authority on aircraft maintenance. The webinar was recorded, so it should be available on the EAA member's website.One point that he made was that compression leak-down testing at the annual is a mostly worthless exercise in an apparently normal engine that is making rated power! He said it is poorly reproducible and depends mostly on…See More
Feb 8
6 Comments
John Austin posted a discussion

Shaved Slat Brackets

If you've seen my Slats and VG's post, you know I definitely prefer the VG's/no slats configuration on my 750 since I really don't need extreme ascent/descent angle ability into obstructed strips. Aesthetically, it bugs me to have the "naked" slat brackets protruding from the leading edge. They're so prominent and with the empty mounting holes, I typically get the question "What are those for?" or "What attaches to…See More
Jan 22
19 Comments
Gordon Arbeitman left a comment for John Austin
"John;  Thanks.  I think your approach is right.  I've concluded that I created my problem by having both ailerons in neutral position, the stick centered, but the horizontal rods (and therefore the vertical rods) different…"
Jan 17
David J. Beaulieu left a comment for John Austin
"John, Saw your aircraft in the months EAA magazine...recognized your name from this forum. Nice color scheme - kind of what I was envisioning if I do not go the "polish" route. Very nice looking airplane.  Cheers! Dave"
Jan 3
John Austin posted a video

Zenith 750 STOL Takeoff

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Dec 2, 2012
0 Comments
Max Russell Baldwin left a comment for John Austin
"John    I have been admiring your Aircraft pictures. I started a 750  and am looking for ideas that has worked well for others. Your seats are very nice and I would like to know if it would be possible to find out where you got them?…"
Nov 25, 2012
John Austin posted a discussion

Differential Cylinder Leak Down Tester

Anyone have a recommendation for a leak down tester that'll work correctly on the Jab 3300? I noticed that Spruce has one with a 12 mm plug adapter "for Rotax" ... assume it would work with the Jab, too?See More
Nov 23, 2012
3 Comments
Thomas Spickermann left a comment for John Austin
"Hi John, i've already got the intake tube with vanes. Nice photos of the sump cooler, though, even I should be able to copy that ... "
Nov 2, 2012
Thomas Spickermann left a comment for John Austin
"Thanks a lot, John! My engine is #2378, so I should also benefit from the improvements. Thanks also for the photos of you mods, I'll try to do copy! By some miracle I have an endless supply of scrap aluminum ... 'Hope to meet you…"
Nov 2, 2012
Thomas Spickermann left a comment for John Austin
"Hi John, just a quick question if I may: did you ever have CHT or oil temp issues? I am using the 3300 and am getting closer (or so do I believe) to finishing, so I am curious as to what other Jab drivers did to deal with these. Did you do anything…"
Nov 2, 2012
John Austin posted a blog post

A funny thing happened at the local open house ...

My local municipal airport had an open house last Saturday and the FBO manager begged me to display my 750. Of course, that didn't take much arm-twisting! HA!I was determined, however, to not let the plane out of my sight while on display as I have heard horror stories of little kids swinging form various parts of planes that were never intended to bear any abuse, parents plopping kids in the pilots seats and getting spills and/or the products of various kid's orifices on your seat covers,…See More
Oct 5, 2012
3 Comments

Profile Information

Aircraft Model
STOL CH 750
Project Status
Flying
Building From
Kit
Building Experience
Have already built an airplane
Flying Experience
Private Pilot
Building and Flying Info / Your Profession / Other Background Info
Retired physician, 2500 hr private pilot, instrument rated, built Monerai (Monnet) glider years ago.

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John Austin's Blog

A funny thing happened at the local open house ...

Posted on October 5, 2012 at 9:33am 3 Comments

My local municipal airport had an open house last Saturday and the FBO manager begged me to display my 750. Of course, that didn't take much arm-twisting! HA!

I was determined, however, to not let the plane out of my sight while on display as I have heard horror stories of little kids swinging form various parts of planes that were never intended to bear any abuse, parents plopping kids in the pilots seats and getting spills and/or the products of various kid's orifices on your seat…

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Comment Wall (15 comments)

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At 2:20pm on January 17, 2013, Gordon Arbeitman said…

John;  Thanks.  I think your approach is right.  I've concluded that I created my problem by having both ailerons in neutral position, the stick centered, but the horizontal rods (and therefore the vertical rods) different lengths.   I wont' be able to get back to this until Saturday but I'm confident that starting with exactly equal length horizontal rods will lead to success.

At 3:10pm on January 3, 2013, David J. Beaulieu said…

John,

Saw your aircraft in the months EAA magazine...recognized your name from this forum.

Nice color scheme - kind of what I was envisioning if I do not go the "polish" route.

Very nice looking airplane.  Cheers!

Dave

At 4:54pm on November 25, 2012, Max Russell Baldwin said…

John    I have been admiring your Aircraft pictures. I started a 750  and am looking for ideas that has worked well for others. Your seats are very nice and I would like to know if it would be possible to find out where you got them?  I am about an hour south of Chattanooga in north Georgia        Thanks Max R. Baldwin .

At 3:50pm on November 2, 2012, Thomas Spickermann said…

Hi John, i've already got the intake tube with vanes. Nice photos of the sump cooler, though, even I should be able to copy that ... 

At 1:05pm on November 2, 2012, Thomas Spickermann said…

Thanks a lot, John! My engine is #2378, so I should also benefit from the improvements. Thanks also for the photos of you mods, I'll try to do copy! By some miracle I have an endless supply of scrap aluminum ... 'Hope to meet you sometime, 

Thomas

At 12:04pm on November 2, 2012, Thomas Spickermann said…

Hi John, just a quick question if I may: did you ever have CHT or oil temp issues? I am using the 3300 and am getting closer (or so do I believe) to finishing, so I am curious as to what other Jab drivers did to deal with these. Did you do anything different from the FWF package or the HomebuiltHelp DVD, for example a bigger oil cooler or so? 

Thanks, 

 Thomas

At 2:41pm on August 9, 2012, Stephen R. Smith said…

Hello John,

The sump cooler was not all that effective.  I don't use it anymore. I am using a TRU-Cool 24 row cooler. My oil temp never get over 195. The 750 is slower and needs higher-power out of the Jabiru 3300 then the 601 needs.

Quality sport planes has a 750 with a Jabiru 3300.  They had endless oil temp problem until they replaced the stock cooler with a TRU-Cool 36 row cooler.  I think the 24 row cooler might have done the job but they wanted the problem fixed for sure.  You can get TRU-Cool coolers here:

TRU-Cool Oil Coolers

Steve

At 10:25am on August 9, 2012, Stephen R. Smith said…

Hello John,

Yes I use NGK DR9EIX plugs.  I have experimented with plug gaps. Iridium plugs can have a wider gap then the standard plugs. With standard plugs I have had starting problems when the gap reaches about 27.  With my Iridium plugs, I started to see problems when the gap reached 34.So, what you do may depend on how many hours you want to put on the plugs before replacing them. On iridium plugs it is the center electrode that is fragile. Just be careful when gaping so you don't put pressure on the center electrode by accident.I like to have one or two plugs gaped at 22.  This makes it more likely the Jabiru motor will start when the battery is low. To minimize starting issues, also make sure the mags are gaped at 10.

Steve

At 6:38pm on June 17, 2012, Russell Calhoun said…

Come on down, I'm home till the last week in June. I fly most days when the weather permits. Give me a call when you get ready to fly.

At 12:13am on May 31, 2012, Dr. Edward L. Olds III said…

John,

Was in Tenn. to install the engine.  Jabiru did a great job.  Everything ran well, now just have to finish.  Where did you get your proposed paint scheme and who is doing the work for you?

Ed

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