RE: Scale flaps

RE: Scale flaps
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RE: Scale flaps - 4/9/2004 12:22:58 PM

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Joined: 1/19/2002
From: Enterprise, AL, USA
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quote:

ORIGINAL: Arvid

Allright, then lets do so!.......

Slight positive incidence (1 1/4 degree?), doesn't it mean that it will stear the plane down? The more you are giving it a positive incidence, the more the plane tends to go down, right. So the you have to compensate to give it up rudder? Or am I wrong here?

Arvid,
good to see others trying to do this. Check out this thread I ran last year.

http://www.rcuniverse.com/forum/m_791263/mpage_1/key_corsair%252Cincidence/anchor/tm.htm#791263

The final result looks great. I'm at the primer/paint stage so I can't say how well she fly,s but in simulation all was well. You MUST change BOTH wing and stab incidence to get a flyable plane or forget it.

Pete

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(in reply to Arvid)

RE: Scale flaps - 4/9/2004 1:50:49 PM

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From: Parchment, MI, USA
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Top Flite also missed the mark on the wing incidence, it should be 2 degrees I think, and Top Flite plans have 0. If the wing is set right, then the stab should be set right also. Even without setting the wing to a positive incidence, mine seems to need a slight amount of down elevator for level flight, and yes, full scales do fly in what appears to be a slightly nose down attitude. These (scale) incidences create a slight engine downthrust effect (since the wings and stab are positive in relation to the engine, which is at 0 degrees), which in turn means less trim changes are required at different power settings.

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(in reply to Arvid)

RE: Scale flaps - 4/10/2004 8:06:58 AM

Arvid

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Joined: 3/12/2004
From: UtrechtNone, NETHERLANDS
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Ok, that's pretty clear. I'll give it a try. Especially when it makes slow flight (landing.....) and overall flying characteristics better.

It should be done....

In the mean while I am building the fuselage with the mod as Hoonnz showed it in another thread. Must say that I had to think hard before I started cutting in the fuselage (don't repair if it isn't broken?....) but I am convinced it is going to work out alright. Here is the thread:

http://www.rcuniverse.com/forum/m_964836/mpage_8/key_/anchor/tm.htm#1548365

(in reply to CorsairJock)

RE: Scale flaps - 4/10/2004 8:59:26 AM

torp

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Joined: 5/5/2003
From: ashvegas, NEW ZEALAND
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A couple of pics i snapped for you guru's !!!!!!!

torp

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RE: Scale flaps - 4/10/2004 12:10:26 PM

Arvid

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From: UtrechtNone, NETHERLANDS
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Cool, nice pictures!

(in reply to torp)

corsair pics - 4/10/2004 8:57:14 PM

torp

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From: ashvegas, NEW ZEALAND
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Here's a link to some detailed pic's some of you might not know about !!!!!
http://www.kiwiaircraftimages.com/corsair.html
torp

If you dudes get a bit of time research kiwi's in corsairs during war , big effort by us .............

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(in reply to Arvid)

RE: Scale flaps - 4/11/2004 6:26:18 AM

hoonnz

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Joined: 10/24/2002
From: Christchurch, NEW ZEALAND
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Hey Torp

Is that Wanaka? I wasn't fussed about going as the NZ Corsair was sold - now they've bought a better one and I missed out. The shot of the cooling flaps is the best view I've seen of the operating mechanism - its just a drawstring. I've decided to use that method on mine, don't think I'll make little scale pulleys though.

Cheers
Brian

(in reply to torp)

RE: Scale flaps - 4/11/2004 7:27:49 AM

torp

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From: ashvegas, NEW ZEALAND
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Hi Hooonz , same corsair ,they brought it over from duxford for the show !!!!!!
torp.

........yes ,wanaka on saturday.........

p.s might not be same corsair ,i know one went to Brazil ,think its this one ??????

< Message edited by torp -- 4/12/2004 4:06:03 AM >

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RE: Finished Empenage Mods - 4/16/2004 12:12:35 AM

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From: Las Vegas, NV, USA
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Hello Gents,

I just finished my first attempt at building an RC model, a Top Flight 60 Gold. The engine i used is a Saito 150 4 Stroke. the porblem I am having is fibration cracking the plastic cowl. Does anyone make a fiberglass cowl for this model? I think fiberglass would be stronger and more flexible.

Bob_in_lv

(in reply to Rocketman612)

RE: Scale flaps - 4/16/2004 10:45:48 AM

hoonnz

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Joined: 10/24/2002
From: Christchurch, NEW ZEALAND
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Arvid

I've just come from your thread on the sliding canopy - you really scored there!
Here is what I am doing in my wings. I don't like non-scale external control linkages and horns, so this is my solution to actuating the ailerons. The cranks are to avoid excessive tight curves in the snakes and the double bellcranks are to avoid twisting under load.
The crank could just be pivoted in the centre, but the ball link on the swingee reaches the limit of its swivel so the offset I have built in allows a greater range of movement without sideways stress.

Hopefully the pics are self explanatory.

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(in reply to Arvid)

RE: Scale flaps - 4/16/2004 3:32:15 PM

Arvid

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From: UtrechtNone, NETHERLANDS
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Hoonnz, you rule. This way I can just cut away the existing bar and replace it with a new one an copy this linkage you just showed. I will go back to the store and get some of those swingbees. What size do you use?

The sliding cockpit is a feature which is extremely nice. So if posible I would like to make it as well.

(in reply to hoonnz)

RE: Scale flaps - 4/16/2004 3:44:22 PM

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From: Oconomowoc , WI, USA
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I lightened up your second picture a bit.

Shows a lot more detail now.....

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< Message edited by Mel Francis -- 4/16/2004 9:47:04 AM >

(in reply to torp)

RE: Scale flaps - 4/16/2004 10:25:23 PM

hoonnz

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Joined: 10/24/2002
From: Christchurch, NEW ZEALAND
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Arvid

Don't jump in too quick, there are some differences from the normal positions. The ply mount is one rib-bay inboard to where the plan shows, and is shifted back (about 3cm) and down a little. Also the inboard rib it is fitted into normally has a hole popped out so you have to glue its missing balsa back in. The hinging is going to have to be measured very carefully to get the hinge line lined up with the swingee.

I bought my swingees about 5 years ago mail order from England, they are 30mm wide. I wasn't aware there were other sizes.

(in reply to Arvid)

RE: Scale flaps - 4/17/2004 12:02:01 AM

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From: Staten Island, NY, USA
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Try this for hidden linkage

http://www.irfmachineworks.com/rds/

I bought some stuff from them including pre-made pockets. I am very happy with the work... Putting it into my H-9 Corsair.

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(in reply to hoonnz)

RE: Scale flaps - 4/17/2004 7:21:22 AM

Arvid

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Joined: 3/12/2004
From: UtrechtNone, NETHERLANDS
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Brian, everything you said I sort of figured it out but it is good to hear the confirmation

I prefer the swingbee rather than the solution presented by WarpdSpazm as then you will have a servo in your wing which can go malfunction. I rather go for static pieces. Still a nice alternative as well, that should be said.

(in reply to WarpdSpazm)