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Archive for May, 2018
Posted by BernardW | May 24, 2018 @ 03:07 AM | 3,895 Views
A little matter I've been meaning to bring up... does anyone else feel like those pod shapes on the bottom of the landing gear would be better being called "wheel spats" than "wheel pants"? I never heard of wheel pants until I started reading US hosted RC sites like this one. To me I'd always known them for years and years as Spats on fullsize aircraft. I will concede that I've seen them called wheel pants on fullsize too since then, but I'm pretty sure in Commonwealth countries the term is, or at least used to be, spats. Now, doesn't using the word "pants" for an aircraft part seem slightly silly? Even uncomfortable? The thing is, these pants don't go over any legs, they're just at the foot of the landing gear over the wheel. So if anything they're more like wheel shoes (that's not too bad either). And some Stukas had what they called :"trouser type" fairings over the fixed LG legs, they could certainly qualify as pants but few others have them, and fewer RC models. Isn't Spats just a better word, and doesn't make you feel so weird saying it? So the solution is obvious. Loud and clear, say it with me, call 'em Spats! from now on. So who's with me? Let's spread the word! Literally I mean, and the word is SPATS!
Posted by BernardW | May 18, 2018 @ 04:05 AM | 4,277 Views
Hi, just a place to continue the discussion started in John Morgan's build log about servo power. Stemming from the servo calculator page at http://www.mnbigbirds.com/Servo%20To...0Caculator.htm
To me the real issue is what exactly is the airspeed to plug into those equations. I've seen all sorts of estimates for different types of models but really, they're guesses. Who can actually tell us a *measured* speed for, say, a warbird of JMorgan's type size and weight, or a sports 60 model, or a trainer, or what. It's not too hard to get pylon results as they're recorded to help judge the races, but I think we'll find they're little use against other types like the above. I saw a post about a 2m J3 Cub with a stall speed of 28km/h, landing speed 35 km/h and "best speed" (full throttle?) of 64. That's not much, 64 k's is just over 40 mph. All the assumptions I've seen for model speeds were much faster than that. A reliable speed is the first thing we need to use that servo calculator page.

Anything anybody would like to add about that, go for it, right here. Help yourself.