Phil Smith
  • Male
  • Buhl, ID
  • United States
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Phil Smith's Discussions

Packing fuel - again

Started this discussion. Last reply by Loren Warner Oct 2. 12 Replies

Vinyl Wrap

Started this discussion. Last reply by Kevin Lippert Jun 17. 5 Replies

Cooling the CH 701

Started this discussion. Last reply by François Balaux May 2. 1 Reply


Welcome, Phil Smith!

Latest Activity

Phil Smith posted a discussion

Packing fuel - again

Previously enquired about ideas on taking extra fuel for longer trips - excellent ideas in return.As I really don't want to open up the wings for another tank, add tanks to struts or internal tanks; ...has anyone thought about making - say the first section of the inboard slat - a "wet slat  tank" by using pro-seal or some other product?? Not looking for a lot of fuel and weight - just five gallons - so area from inboard end to first rib would be about 2.5 gallons ( 15 lb) per side.  Very…See More
Sep 28
Phil Smith posted a blog post

New Profile Picture

Scene from the film Dances With Wolves that ended on the cutting room a former life I was named "Leads Buffalo by Nose"...actually I worked with John Dunbar to create his character...Tatanka tatanka!!!Still grinning!Phil SmithCH 70wonderfulBuhl, IDSee More
Jun 20
Phil Smith posted a discussion

Vinyl Wrap

Been contemplating doing a vinyl wrap over my fiberglass cowl - carbon fiber should look nice - the cowl is now a multi layer - ratty looking - base.  Do I just sand it back and wrap??? Or do I have to re-prime and finish with some type of top coat.Still grinning!Phil Smith CH 70WonderfulBuhl, IDSee More
Jun 15
Phil Smith posted a blog post

Watch where you pull!!!

WHOOP WHOOP WARNING.I installed the strut on the pilots door pictured aboove and soon after tried to pull it down from the front edge about a foot outboard like I always did with the suction cup...crack...split.  The door - original fiberglass and Plexiglas bubble door supplied by Zenith - broke at the fiberglass corner and radiated out down and aft in the Plexiglas.  Quite a bit of bending torque is applied to the bad. Stop drilled the crack, sealed it with "special Plexiglas glue…See More
Jun 8
Phil Smith posted a discussion

Cooling the CH 701

OK folks,In the very high and hot summer  temperatures here in Idaho my oil and CHT temps seem to run a little warm creeping up into the yellow range as specified by Rotax.. Last summer I added an  air scoop to the NACA duct for the oil cooler - dropped the temp very slightly, but it did decrease. Also added an air scoop to the radiator (vertical ULS) which again helped slightly. Picture attached.Now am fabricating a "lip" for the bottom of the cowl to increase - maybe - air flow through the…See More
Apr 28
Phil Smith posted a discussion

Packin Fuel

Looking fwd to the summer flying in Idaho and the back country air strips. From previous flights I have found that it would be better if I could "pack" five or so gallons of extra gas - I have the std 20 gallon setup.I have seen pictures of tanks hanging on the wing struts - thought about a belly tank setup but then there IS the exhaust pipe.Don't particularly want to put it inside the cabin with me or open the wings to add aux tanks - any and all ideas please.Still grinning!!Phil SmithCH…See More
Apr 23
Phil Smith posted a discussion

Alternate method to hook up vacume for synchronizing

Anybody know a source for the brass hose nipples to replace the M6X6 hex screw (2) on the 912 ULS intake manifold when using  the alternate method of hook up for carb synchronization.Also I've looked around and can't find reference to this method - I know I saw it somewhere.  I have the "split the balance tube" set up on a electronic meter but want to convert to the twin gauge system. I know that I can still used the "split the manifold" method with the gauges,  but thought removing the Hex…See More
Apr 10
Phil Smith posted a discussion

Oil Line on 701

I haven't researched the prints yet but does anyone know the hose spec, manufacturer and source for the "Blue" colored lines  shipped with the Zenith 701 kit in 2007.Or alternatively what have you  used - figure it's time to change there out on "five year" requirements.Phil SmithCH - 701Buhl, IDSee More
Apr 4
Phil Smith posted a status
"Changed my profile picture - don't have a stand by the plane, is hero and has been cold here."
Mar 12
Phil Smith posted a discussion

Hangar Bling

Taxied in last fall and saw the attachedSee More
Dec 29, 2016
Phil Smith posted a discussion

Engine bay Bottom access

701 and probably 750 / 801 / 650 Tip and Trick,I found that when ever I need to do anything on the FWF /  engine below the top end - mine's a Rotax ULS - I just push the tail to the ground, resting on a small block of wood, put a twenty five pound bag of shot close to the center on the horizontal stab and everything on the bottom becomes magically available up front.   I purchased a roll- around adjustable stool and one of the roll around three shelf tool carts from the Harbor freight aircraft…See More
Nov 4, 2016
Phil Smith posted a discussion


BRUCES CUSTOM ACFT COVER FOR CH 701 I purchased it from a fellow in Michigan on the Zenith for Sale site. Model Z701-000 with bag, This is the heavy weight cover  for outside storage of your plane - or inside. So here's the deal - same as I made - $200.00 for the cover and you kick in $20.00 bucks to ship it to you in USA.  The cover still goes for $425.00 at Bruce's site. BTW this is a firm price Fits my plane like a glove BUT by the time it arrived I was the proud owner of a hangar.  I'm…See More
Jul 31, 2016
Phil Smith posted a discussion

Rotax 912 looses power on takeoff

In the past there was a thread about a rough running Rotax 912 engine. The author had changed about everything: plugs, had the carbs reworked, etc..  In the end he found that the vent tube had been changed or re-routed and caused leaning when the aircraft accelerated - hence pressure affecting the delicate balance of bowl  vs  internal carb pressure reference. I have been researching this phenomenon to advise a Rotax powered gyrocopter owner - same problem: runs fine on the ground but looses…See More
Feb 26, 2016
Phil Smith posted a discussion

Photo on my profile

OK computer gurus how do I change the picture from the one that is shown to a new picture.  Tried several times to no avail...soooo I'm lost.Still grinninPhilSee More
Mar 6, 2015
Phil Smith posted a discussion

Solar Heat for Plane Correction

OOPS I did not post the right email for response about my Solar Airplane Heater.  The correct email is a couple of "proof" pics for temperatures at the top of the heater and under the cowl at the oil cooler door on a sunny day.Drop a note if you have questions or comments.ttfnPhilSee More
Feb 1, 2015

Profile Information

Aircraft Model
Project Status
Building From
Engine installed (or plan to install)
Rotax 912
Building Experience
Have worked on airplanes before
Flying Experience
Commercial / CFI
Building and Flying Info / Your Profession / Other Background Info
Retired USAF pilot after 28 years on active duty, USAF Reserve and Michigan ANG, then flew cargo world wide for nine years in L382 Hercules and 747-200F freighters, along the way rebuilt several airplanes and got my A&P. Decided the most fun I have ever had flying was low and slow in an old J3 Cub. Didn't like the cost of a J3 vs the performance so opted for the CH 701 which used to stare me in the face on the inside back cover of "Kit Planes" magazine. Even thought that it was the uglyest airplane I had ever seen...but fell in love anyway because it fits my six foot, 280 lb frame.Took three years, eight months and 20 days start to sign off on September 20, 2010. Ran out of parts and excuses on November 5, 2010 and flew first flight of fifteen minutes. Now have a little over three hours on bird - no squawks - and am waiting for Idaho weather to alow further adventures.

Now have ten hours and about 14 landings. All is well except for the tire questions that you might look up on the matronics web site under 701801 Still grinnin - but this Idaho wx sux when you're trying to fly.

Now over 100 hours (APR 2014) and still amazed that you can have this much fun for so little cost.

Now airframe and engine time is over 148 and still running great. Look below for some of the things that I have done to clean up problem areas.

Time now is 210.6 hrs....simple maintenance throw in some mogas and have a great time.

Still Grinnin!!!
Home Airport (ie. KMYJ)

Just went over 15 hours on last Sunday.  Still no major problems.  One word of caution: if you have the "old style Black Rubber" gear mounting spacers take a good look at how yours are doing.  At thirteen hours I noticed that mine were cracking and changed them out for spacers provided by Zenith.  See my three blogs with pictures in Matronics under Zenith 801701-lists. If you have any questions drop me a note on line.  In fact if you have the old black spacers I suggest rather strongly you get down under the plane and look at them.  Take a look at what I saw at the angle bracket line and what they looked like when I pulled them out.

Still grinnin


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Phil Smith's Blog

New Profile Picture

Posted on June 20, 2017 at 6:35pm 0 Comments

Scene from the film…


Watch where you pull!!!

Posted on June 8, 2017 at 12:48pm 1 Comment


I installed the strut on the pilots door pictured aboove and soon after tried to pull it down from the front edge about a foot outboard like I always did with the suction cup...crack...split.  The door - original fiberglass and Plexiglas bubble door supplied by Zenith - broke at the fiberglass corner and radiated out down and aft in the Plexiglas.  Quite a bit of bending torque is applied to the bad. Stop drilled the crack, sealed it with "special…


Recent trim work on 701

Posted on November 17, 2013 at 11:18am 1 Comment

Just to update all of you that are tweaking your CH 701 and possibly your 750.  These mods probably don't add speed or short field capability - LOL - but were done to clean up the original construction.  First of all go to "my Photos" so you can see what I am talking about,


I never liked the bubble door to front post fit that I created in the original build it was noisy and drafty especially in winter. So the first item was to build new trim strips for the front pillar to…


701 Heater

Posted on February 14, 2013 at 6:00pm 5 Comments

Update on the Zenith supplied cabin heater for my 701.  Installed it in December and it works as advertised...actually a little bit better than advertised as I only need about 1/3 heat on days at 30 f outside. A couple of things: I went down to my aircraft supply store...Coop Plumbing section...and found a 45 elbow in black plastic that fit over the  heater firewall tube perfectly.  I then cut a slot in the elbow OD…


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At 6:39pm on January 8, 2013, Randy Boykin said…

I am curious what you put on the inside of the cabin, looks like some kind of insulation.

At 8:55am on March 15, 2009, Robert Pelland said…
Welcome to the fray Phil.

By looking at your photo , you sure got off to a good start in the engine departement.. :o)

Robert Pelland
701 & 750 Scratch

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