Recent content by Zzz

The correct answer is in post #8. The kit manual has a mistake that's prob screwed a few of us by now. To save anyone else the time calling Lord/Parker, I’ve attached the drawing showing the correct orientation of the two discretely numbered halves of the J-9613-12 mount kit (used with...

B&C makes these nice 90 degree angled oil filter adapters for Lycomings. It looks like they offer a few different orientations though. Can anyone weigh in on which works best? https://www.bandc.aero/oil-filter-adapter.aspx I was thinking the 708 model because it orients the filter downward...

I'm one of those guys who raised their door sills with the intent to build gullwing seaplane doors. Because of the new shape of my door sills, I'm having to make new patterns for the aluminum skin that covers between the sill and the lower longeron, around the strut attach and aileron pulley...

I have some areas of my quickbuild fuselage that I stripped bare to weld onto. My garage is heated and is very dry, but my fuselage did spent many nights in an open air shop over the summer here in oregon, and developed quite a bit of surface rust on those weld joints. It's back in my dry warm...

I need some assistance providing some specs for my MT spinner. I've been asked to provide the 1) spinner diameter and 2) the distance from the forward flywheel face to the back of the spinner backing plate. I have an IO-540-C4B5, but it's not yet hung on the airplane, so I can't do the nose...

This is the most inspiring (and relaxing) thing you'll watch this week: https://www.youtube.com/watch?v=lPtNTGW4Xmw Here's my new Furick BBW on my CK9. I love this tiny torch. 125A max though.

Anyone here use thin aluminum for the last few feet of their tail covering on the belly? I've been thinking that this method would provide a strong covering for an area that gets beat up by rocks for those of us who enjoy gravel bars, as well as providing an easily removable access panel for the...

I'm building a 4-place Bearhawk and using an IO-540. I was looking up the skirt of the CubCrafters XCub the other day and noticed that its crankcase breather tube vents right into the exhaust collector. That seems pretty slick, since supposedly the oil mist gets vaporized instead of coating the...

Was going to do some layout work in Illustrator. Hoping to save the step where I have to digitize the shape myself. Thanks.

I'm stripping some sections of my quickbuild fuselage for welding. I've tried CitrusStrip and Klean-Strip Stripper from Home Depot, both utterly ineffective on the strontium chromate/urethane fuselage paint. What's it gonna take to cut through this stuff? What ingredients am I looking for on...

Saw this the other day: https://www.aerolab.it/ Seems geared toward RV guys but it strikes me as a clever design that's a little different than the traditional screw-on bowls.

Does anyone have any insight into why the bearhawk elevator hinges are designed as they are? Was talking with another builder tonight and we got on the topic of lubricating the hinges. I was asked why not just use a Piper style hinge? While that seems simpler and easier to keep lubricated, it...

Having a bit of a debate here regarding how to orient the aluminum bulkhead/former that is attached at the station B crossbar (BH 4-place.) The assembly manual makes it very clear that the piece should be oriented aft of the crossbar, underneath the horizontal tabs, with the top flange pointed...

In the Bearhawk assembly manual it states something to the effect of "show how well you find solutions that are neat and clean." Well, I can see several solutions that one could choose from, but I'm not sure which of them is neater and/or cleaner. The easiest would be to just sandwich the...

Phenolic pulleys have been around much longer than I have, but lately I've seen a lot of fancy aluminum pulleys on the market. Ralmark, the makers of the phenolic pulleys, also make an aluminum version, albeit with fewer size options. Javron, the cub kit maker in MN, also makes some nice...