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I did a search on icing and came back with a few comments related to carb icing but nothing on airframe icing. My curiosity lies in how those fuel cap vents do in inadvertent icing. I am planning on an IFR legal bird. . Im religious about staying out of known ice but have encountered...

Background: Knowing that the structure of the Bearhawk 5 was not the same as the other models and that Bob had increased VNE 5 MPH versus the 4 place, I called Bob to see if the Engineering guidance for the other models to reduce indicated VNE by 4MPH for every 1000 ft above 8000 was the same...

Does anyone happen to have an angle valve 540 cooling chart? It looks like this one for a 360.

Here is a link you might find helpful. https://www.avweb.com/ownership/which-oil-should-i-use/ I use Phillips 20w50 and camguard. My logic is that I tend to fly in a variety of climates during the year and so I use a multiweight. The multiweight is thinner at room temperature and would normally...

Do we have enough data out there on the the prototype and first kit built angle valve model 5’s to draw conclusions on the correct oil cooler size? What little data I have seen shows really good CHT’s but the two data points I saw showed 210 degree oil with 327 CHT and 217 degree oil with...

My name is Dennis Ramsey. I live in South Carolina. I have built a Lancair IV which I now have over 1200 hrs on and a Just Highlander which I had about 330 hrs on when I sold it to buy a bearhawk kit….not realizing the time delay in receiving the bearhawk kit…ooops. But the good news is I...