23 Nov 2023 Mr. Funnel sealant problem
I was cleaning the funnel after use, wiping it with a paper towel before putting it back in the box, and I noticed something sticking out from the filter. I pulled on the filter...
Firewall Forward
28 Jun 2023 Dual PMAG wiring
Frequently, discussion comes up about how to wire the PMAGs or which switches to use. I thought I would share my design and implementation. I use 3 switches, wired like this diagram. They are...
17 Aug 2022 Aviation Courtesy
Here lies a pilot called "Ace" poem AVIATION COURTESY, by Dick VanGrunsven Here lies a pilot called "Ace"Who did loops with such ease and grace.One day, to his woe, he entered too low.Unable to recover, he was...
28 Jun 2022 Silicone Rubber Baffle Seals
These are some photos I took of the lipstick red silicone rubber baffle seals. They are very flexible, even when cold. They seem to seal quite well, and are probably a big part...
27 Jun 2022 Adel Clamps
Adel Clamps Photo courtesy AircraftSpruce.com Everything you ever wanted to know but were afraid to askby Bob NuckollsI've seen some conversation recently concerning "Adel" clamps and their suitability for use around fuel, high temps, etc. I've pulled...
24 Apr 2022 AoA – Angle of Attack Sport
Here's what I've got for sale. This kit is complete except the two blocks that connect the AOA ports in the wings to the hose, and a bit of hose. I glued the blocks onto...
14 Apr 2022 Mein Eigenbauluftfahrzeug
In Switzerland we no longer have the option to label our aircraft Experimental to warn would-be passengers that they are about to get into a contraption that was built by a "crazy" person in their...
01 Apr 2022 Loctite pipe thread sealants
I often forget which pipe thread sealant I have, so I created this page to write it down. One is kind of a paste (the stick, Loctite 561) and the other is a bit...
27 Feb 2022 First oil change with K&P cleanable filter
2022-02-26: The K&P filter after about 25 hours of usage. I ran 4 tanks of 100LL during this period, which is very unusual for me. Usually I run Total UL91. The oil...
27 Feb 2022 Two types of pipe thread sealant
This post it just as a reminder to myself of the types of pipe thread sealant I have used. Mostly I used PST 561 stick - this is for NPT fittings. Reminder to...
06 Feb 2022 Limiting propeller to 2500 RPM for noise reduction
Airplanes make noise, that's a fact. Many people on the ground don't like noise, that's another fact. People who don't like airplanes often point to the noise as the reason they don't like...
09 Jan 2022 K&P Engineering Stainless Steel Cleanable Oil Filter
I read that these stainless steel filters are better than the normal paper elements in the Champion, Tempest, and other oil filter brands. They are pretty expensive, but will pay for themselves after about...
18 Nov 2021 Remote controlled engine heater
Lycoming engines like to be warm. When it gets cold, the best thing to do before starting is to warm up the engine. There are many ways to do this, and I've chosen...
02 Nov 2021 Blocking oil cooler for winter operations
My oil temps are very low, typically under 150° F even in the summer, so in the winter months I've read it's best to block the oil cooler. I've been hesitant to do this...
08 Oct 2021 Heater box and cable photos
Some photos of how the hot air valve/heater box was done. Still need more photos to complete the picture. Here is the valve after I've fixed the lever - the spot welds failed so I...
04 Oct 2021 Fuel Injection flow divider test
20211001: I have an Airflow Performance FM200 mechanical fuel injection system, and I had thought that it would be a good idea to ensure that the flow to each injector is equal. I did...
02 Oct 2021 Compression test photos – 2021-08
Some pictures of my compression test results from the condition inspection in August 2021. Mike Busch says that compression alone is not really that helpful, since the same cylinder can test with low compression...
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...
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...
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! ...
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...