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Old Nov 16, 2011, 05:25 PM
My Co-Pilots Rock!!
wolfewinde's Avatar
United States, FL, Clearwater
Joined May 2011
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Well I did start on the Formosa II - also have a start on the Beaver - not in much of a hurry one either of these - I have planes to fly, but starting is the hard part. Right?

The Formosa II is the new EPO foam - first time I have worked with that. It does look a lot smoother and a lot like Multiplex Elapor foam. Do you guys think 9 gram servos will be strong enough for this one?

Wolfe
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Old Nov 16, 2011, 06:54 PM
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Quote:
Originally Posted by wolfewinde View Post
Do you guys think 9 gram servos will be strong enough for this one?

Wolfe
That's a tough call. I went for 14-gram servos on mine. The Formosa-II has somewhat oversized control surfaces, and I powered mine to be rather fast.

I went for Bluebird BMS-380 servos which I would definitely NOT recommend.
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Old Nov 16, 2011, 07:26 PM
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Taiwan, 北市
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Hi Wolfe,

I'd suggest using bigger ones instead, ie GWS Naro Max, Park or the equivaltents, as 9-gram servos might not be powerful enough to work with the 200 - 250W brushless motors that are normally used on this airplane.
http://www.gwsus.com/english/product...ub%20micro.htm
http://www.gwsus.com/english/product/servo/mini.htm

Chen
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Old Nov 16, 2011, 07:33 PM
My Co-Pilots Rock!!
wolfewinde's Avatar
United States, FL, Clearwater
Joined May 2011
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Do you guys think this ESC
http://www.hobbyking.com/hobbyking/s...ntroller_.html


will drive 4 of these servos

http://www.headsuprc.com/servlet/the...-14g-TP/Detail

I have never really understood how the BEC rating on the ESC equates to how many servos it can drive

Wolfe
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Old Nov 16, 2011, 07:43 PM
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Hi Wolfe,

I'm afraid NOT, you might have to apply an ESC that has BEC with more than 3A rating, or better to connect an extra BEC or UBEC with your set up.

Chen
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Old Nov 16, 2011, 08:51 PM
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Wolfe -- look for an ESC that has a built-in switching BEC (aka sBEC). Here's one from HobbyKing:

http://www.hobbyking.com/hobbyking/s...e_Series_.html

headsuprc has several, reasonably priced. Meaning, only twice the HobbyKing price.

At this point if a plane is over 35" or so, reasonably acrobatic and/or over 20 ounces, I use an sBEC.
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Old Nov 17, 2011, 11:27 AM
My Co-Pilots Rock!!
wolfewinde's Avatar
United States, FL, Clearwater
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Well I just ordered a couple of these - will they be OK?

https://www.hobbyking.com/hobbyking/...dproduct=11430

What does "switching" do?

Wolfe
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Old Nov 17, 2011, 11:27 AM
My Co-Pilots Rock!!
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Old Nov 17, 2011, 07:11 PM
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Quote:
Originally Posted by wolfewinde View Post
Well I just ordered a couple of these - will they be OK?

https://www.hobbyking.com/hobbyking/...dproduct=11430

What does "switching" do?

Wolfe
Switching regulators regulate using digital methods versus the old fashioned analog (linear) way, which was to drop the excess voltage across a transistor.

Switching requires more components and more complex circuitry, but that's no big deal with today's technology. The main advantage is it's a lot more efficient, and runs a lot cooler.
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Old Nov 17, 2011, 07:47 PM
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Hi Wolfe,

This is a smarter ESC than the older, analog, ones. In my idea you just apply the same way as what you do on those old ESC's if you hate to further program it. And forget those functions made for helicopters.

Chen
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Old Nov 18, 2011, 10:39 AM
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Joined Mar 2001
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I just ordered a bunch of spare pico moth parts from BP Hobbies -- with what I have already and these new parts I can build several more of these nice little planes. Gotta have enough to last me until I die!
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Old Nov 18, 2011, 10:47 AM
My Co-Pilots Rock!!
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I did that too - have enough Pico parts now to last quite while now.

What floats are you using?

Wolfe
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Old Nov 18, 2011, 11:08 AM
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I made those from pink foam--over on the GWS Tiger Moth part 29 thread I had several posts describing the floats start with post 8175. I think I have built 4 or 5 float moths so far since 2001.
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Old Nov 19, 2011, 10:59 AM
Confused? Who, me?
Roger Lombard's Avatar
United Kingdom, England, North York
Joined Jan 2005
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Wiping a tear from my eye....

Had the ancient "most beat up in the world" Me109 out for a spin this afternoon. I suddenly became aware that (sooner than it should have been) the power was fading and sure enough, on the far side of the field, the LVC cut in and we were dead stick. Not, apparently, enough altitude to get back but she hobbled all the way back like a good 'un and dropped in the grass at my feet.

That's it - she's been a faithful servant, we've flown all over the country together, from Cornwall to the Scottish border and by rights I should have trashed her about a month ago when I flew her without realising the front wing retaining plate was missing, but she held her knickers up on her own, I have no idea how.

So she's retiring - I don't want the career to end in a plastic bag. Haven't really got room to store a dead airframe but maybe after a decent period of mourning ...

My homage to a very battered but lovely flyer RIP my old EPS Anyone got a hankie please?
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Old Nov 19, 2011, 11:27 AM
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Got some quality weathering. Love it!
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