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Old Jul 29, 2011, 04:25 PM
jkarpy's Avatar
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Yup - it's real close now. If everything plays out nicely, I'll be able to maiden it this weekend. First maiden and/or rc flight in several years.

I've managed to set the angle of attack on the wings as per the instructions. What does this adjustment offer in the way the model flies? That is to ask, without getting into all of the scientific descriptions of AOA and what not - why would I want to adjust this? How would the stability of the plane be effected?

Thanks!
Ted
You would make the incidence more positive if you were not concerned with inverted flight and wanted the model to have better slow flight characteristics.
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Old Jul 29, 2011, 05:03 PM
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You would make the incidence more positive if you were not concerned with inverted flight and wanted the model to have better slow flight characteristics.
So, if you wanted to fly fully aerobatic you would set the incidence to 0 relative to the lower wing?

- Don
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Old Jul 29, 2011, 05:48 PM
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So, if you wanted to fly fully aerobatic you would set the incidence to 0 relative to the lower wing?

- Don
No you would set the top wing slightly negative and the bottom wing slightly positive. Perfect 0 deg on both would require independent adjustments. It's much easier to do it the way I do it.
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Old Jul 31, 2011, 05:12 PM
TRP
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Well, I'm all out of excuses... almost.

What the heck are these 5 screws for!? (See first photo...)

Other than figuring out where those go, I just need to set the expo and dual rates and then go fly some.

AUW = 40oz (2lb 7 1/2 oz)

Need to figure out how to shed 1.5 oz.

Weather looks calm although the winds seem to have picked up a bit. Maybe this afternoon, but I'm not going to rush it into the air. No sense in balling this one up.
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Old Jul 31, 2011, 05:34 PM
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Originally Posted by TRP View Post
Well, I'm all out of excuses... almost.

What the heck are these 5 screws for!? (See first photo...)

Other than figuring out where those go, I just need to set the expo and dual rates and then go fly some.

AUW = 40oz (2lb 7 1/2 oz)

Need to figure out how to shed 1.5 oz.

Weather looks calm although the winds seem to have picked up a bit. Maybe this afternoon, but I'm not going to rush it into the air. No sense in balling this one up.
Those screws are used to fasten the wing mounts to the fuselage.
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Old Jul 31, 2011, 05:47 PM
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Those screws are used to fasten the wing mounts to the fuselage.
Ahh! So they aren't really critical then.

Thanks for the info. Much appreciated.

T
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Old Jul 31, 2011, 06:52 PM
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Well, I'm baaaaaaaack. A successful maiden has been recorded in the log book. Mostly uneventful - It needed two clicks of left trim and nearly maxed out the up trim (fwd trim). Couldn't figure out why until I landed.

Looks like I didn't put enough CA on the cf posts for the front most wing mount. The two cf rods had hopped out of their holes and were riding on top of the wooden wing mount. The result was that the front of the top wing was riding 1/4 to 3/8 inches higher than the ends of the top wing. The lower wing was twisted up at the tips (wash out). I had originally just tacked the edges of them in there. Looks like they need a bit more than tacking.

This could be why I needed so much up trim. Regardless of all that, She flies like a big old tractor. Smooth and steady. Slows down really nice and lands gentle as can be.

I've put some 'thick' ca in the holes for the cf rods. I'll let the glue set up a bit and then maybe take 'er back out. My only concern is that the wind is pretty gusty right now. Maybe this evening when the afternoon winds calm down.

All things considered - a success. Glad to be 'current' again. It's been far too long since I've flown RC. I couldn't think of a better plane to start over with. If the winds were more consistent and not so gusty I'd take her right back out.

Thanks Millennium RC for the great kit! Thanks to the other builders for prodding me along. Those who are on the fence - hop off the fence and boogie on over to the web site. Buy one and add to the build thread. I'll be watching.

I'm off to put those 5 screws in now.
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Old Aug 04, 2011, 11:01 PM
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Congrats on the maiden.. Glad there was no wing separation.

I am finding it hard to find the time to work on mine.
I have the first wing half started. I still lack the wing tip and sanding.
And of course I still need to build the Aileron.
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Old Aug 05, 2011, 08:31 AM
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Congrats on the maiden.. Glad there was no wing separation.

I am finding it hard to find the time to work on mine.
I have the first wing half started. I still lack the wing tip and sanding.
And of course I still need to build the Aileron.
Turn off the TV and start gluing!
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Old Aug 05, 2011, 08:57 AM
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Turn off the TV and start gluing!
I wish it was that simple! Building fences, work trips, getting ready for summer vacations... Oh yeah, trying to keep the wife happy!
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Old Aug 05, 2011, 09:05 AM
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I wish it was that simple! Building fences, work trips, getting ready for summer vacations... Oh yeah, trying to keep the wife happy!
I guess you can't TiVO your family.
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Old Aug 05, 2011, 09:10 AM
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I guess you can't TiVO your family.
I learned a little late, that you need to spend as much time with them as possible, before they start families of their own.

Labrador retriever pups require a whole lot of attention, and loving!
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Old Aug 05, 2011, 12:27 PM
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dkennedy - find balance. find happiness.

I've been working a lot this week. No time to get 'er back out there for some more flights. I'm off to San Diego for a week, so flying will have to wait until I return.

I expect you to have all four wings done when I return, young man...

Just do one wing every other day and you'll be done in no time.

Have fun building!
Ted
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Old Aug 13, 2011, 07:07 PM
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dkennedy- where are you at these days? How's the build?

I'm home from San Diego and am thinking about taking the bipe up for a flight or two.

Tomorrow is the wife's birthday, so no luck with flying tomorrow.
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Old Aug 13, 2011, 11:02 PM
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Well, last week I was in Fort Walton Beach Florida, body surfing...
I think I am getting too old for that!
Got back in Thursday night
Back to work on Friday..
Today, a trip to Nashville TN, to see the oldest Daughter who lives in Baltimore, MD.
That wiped out the entire day.
Tomorrow, after church, I will be going flying! , not the Bipe!
After that, mow the yard, and then, I might have an hour to put together another wing section.

I guess this is why it takes me 6 months to put together a plane.

Don
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