02 Oct 2021 Two spot welding failures
I recently had the second failure of something that was "spot welded". Below you can see a heat shield that used spot welding to attach the fastening bracket, and it failed. I found...
Welcome to rv8.ch
This little site will document the progress on the building and flying of a Van’s RV-8 experimental aircraft. You will find images, tips, tricks and techniques that I have learned and from others on the net.
HB-YMM Experimental Homebuilt Van’s Aircraft RV-8
04 Jun 2021 SDS intake tubes
New Intake TubesHad to cut and weld them.Nice new clampsA little rougher here than I would have liked...
16 May 2021 RV-4 engine replacement
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24 Dec 2020 Heat Shield – home made
Some photos of a heat shield I added to the exhaust near the exit. That area was very hot, and starting to discolor the inside of the cowl. I also added high heat...
01 Oct 2020 Frankensnorkel
This is the photo gallery of my snorkel project. I needed to modify the snorkel that came with the kit or make a new one. I chose the latter. It turned out...
27 Sep 2020 Flow divider testing and fixing
I've got one cylinder that has low EGT at idle, and one possible cause is a clogged injector or low flow to the cylinder at idle. I checked the flow as recommended by Airflow...
27 Sep 2020 Fire Extinguisher Installation
I want a fire extinguisher in my aircraft "just in case". I have no illusion that a serious inflight fire can be put out with this little guy, but perhaps a smaller cockpit fire...
28 Aug 2020 Engine photos after test flights
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16 Jul 2020 HB-YMM officially registered
Extract from the official register. Cool! ...
07 Apr 2020 Transponder test
Pass! Axel from Mecanair http://www.mecanair.ch/ came over today to do the transponder test. He had to do it twice, as I apparently had not properly programmed the Trig Avionics TT21 - my bad! ...
24 Mar 2020 Slightly Bigger Tires
Updated: 20220306 - I changed my stock tires for slightly larger 380x150-5 tires. Got them from Aircraft Spruce, $179, "06-01434 MICHELIN AIR TIRE 380X150-5 6PLY 070-554-0" They fit on the same wheel, use the...
19 Mar 2020 Weight and Balance
Karl performing the W&B An important part of the process for every aircraft is to get an accurate weight on each wheel, which then allows you to calculate the W&B. Karl came and did this...
19 Feb 2020 Manifold Pressure Hose
View of the installed manifold pressure hose splitting off to go to the PMAGS and then into the cockpit for the GRT Manifold Pressure sensor Cute metal T for the manifold pressure hose - I believe...
29 Dec 2019 Engine cooling shroud
I want to break in the engine on the ground and it's recommended to use a cooling shroud to keep the temperatures under control. I needed some sheet metal, and didn't want to dip...
29 Dec 2019 First Engine Start
All went fine. Beautiful cold, windy day. I pulled the prop through by hand without plugs in the bottom, then ran the starter without plugs until the oil pressure came up. Put...
17 Dec 2019 Fuel Injector Nozzle Flow Test
Results of the fuel injector flow test - looks about right, but I will tune this more after I get flying. ...
16 Dec 2019 Upper Intersection Gear Fairings
The left upper intersection gear fairing installed perfectly. I used some tips from VAF to put in two #6 nutplates and used #6 countersunk screws. Looks great! The right one didn't fit...
14 Dec 2019 Empennage Fairing
Not gonna lie - the empennage fairing turned out much better than I expected. Probably don't need 1000 screws like the plans say, but I didn't know that when I was doing that part...
09 Dec 2019 EI Commander and p-mags
The EI Commander monitors and can allow the pmags to be programmed. I originally set it to the following parameters. RPM max:2816 ADV max: 33.6 (don't use this value, see below, use 32.2) ADV shf: -1.4 Instructions on the...
26 Nov 2019 Muffler before (and after) welding
If you think that mufflers are simple, have a look at this work from an amazing craftsman in Germany! View from straight on, showing that the mufflers are not in the airflow, but shadowed by the...
09 Nov 2019 Airspeed Calibration
There is a cool technique to calibrate the ASI. Stolen from here: http://francis.guilbault.pagesperso-orange.fr/indicateur%20de%20vitesse.htm Just takes a bit of rubber tubing, a clear bottle, and a ruler. Essentially you hook it up like shown...
22 Oct 2019 Refilling the brake lines
Filling up the right brake line from the bottom. Added a hose to the reservoir at the top, and it overflows into a brake fluid can. I just pump with the oil can...
21 Oct 2019 Bell tailwheel installation
I installed the Bell tailwheel. It was a very easy upgrade. It probably took longer to figure out how to jack up the tail than to install it. I was surprised how much weight is...
12 Oct 2019 First pictures after completion
Here are some pictures before the "final" inspections. ...