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It's bolted, Loctited, and duct taped. That sucker ain't goin' anywhere! :D

I'm setting out on this year's adventure almost exactly a year after the last big one. I'm planning on heading out this Saturday. I'll be flying from Thun Field to Three Forks, Montana on day one, and then proceeding to fly the entire Missouri River, the longest river in North America. After...

Luscombe Road Trip 2020 | Part 21 https://bit.ly/2YrRzpd

If I want to come in and land, when I first call you, is it adequate to say: Tacoma Tower, Luscombe 1-8-1-3-Kilo, 10 miles to the east at 2,000 with Quebec If I include the weather, does that imply to you that I want to come in and land? I like to be concise. Do I need to say anything other...

Luscombe Road Trip 2020 | Part 20 https://bit.ly/3mm7q2h

I assume the article says something about Euler's number. Moreover, I assume you don't really know the answer to the question. Doesn't really matter. It's not that important.

If I wanted to do the computations in real-time while I was in my airplane, climbing, at each thousand-foot increment, how would I do it?

Great post!

I'll post my math again so you can point out my error: 200 0 194 1000 188.18 2000 182.5346 3000 177.0586 4000 171.7468 5000 166.5944 6000 161.5966 7000 156.7487 8000 152.0462 9000 147.4848 10000 Based on your math, at just over...

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I was assuming (in my head) a constant speed prop, although I can see how you could accomplish the same thing either way: higher RPM with a fixed-pitch prop or coarser pitch with an adjustable-pitch prop. I've gotten a couple great answers, but this one is probably the most concise. I'm...

So I see that the POH specifies that it's a constant 120 HP or full throttle for cruise power, so that's 65% power (120 / 185), so that answers my question partly. The percentage is relative to sea-level power, so in other words, it's a constant engine output or horsepower. Are those speeds a...

This is interesting. Same angle of attack = same induced drag. Why would more power be required? Couldn't find my copy of Stick and Rudder with a brief search. Will look again tomorrow. If the answer is there, I'll read that and you don't need to bother answering. I've read it, but obviously...

Yeah, I don't care about the exact engine or power, but the principle. So, 65% of sea-level power will give the same indicated airspeed at any altitude? I'm just inferring since you gave higher true airspeed at higher altitude for that same engine output. Is that correct?

Is that 96 HP (.6 * 160) in both cases?

It can be extremely difficult to get an answer to a question, but I feel like we're getting somewhere here. Still not quite there yet, though. If I can cruise at, say, 200 knots at a 75% power setting at sea level with an IO-360, that means I'm using 150HP to cruise at that 200 knots. Some...

Nobody would say that increased drag requires less power and thrust. My point was that at higher altitudes, one increases the pitch of the prop to make up for the thinner air.

Depends how you do the math, and I don't know how an engineer would do it: 200 0 194 1000 188.18 2000 182.5346 3000 177.0586 4000 171.7468 5000 166.5944 6000 161.5966 7000 156.7487 8000 152.0462 9000 147.4848 10000 Regardless, it sounds like you're completely missing the point of the question.

Right, but I would've thought that increased pitch would make up for that, thus obviating the need for max RPM.

I read that you reduce power by 3% per 1,000 feet, but maybe that's not right. Obviously, I need to do some more research. I thought true airspeed went up at higher altitudes. Again, I need to read more. I don't understand this, but will keep learning. Ha, ha! Clearly a joke! I had the...