[baldfist]

I've been out of any serious sloping for a few years. I've mainly been flying helis with an odd blast with a Zagi from time to time. I has a middle phase a long time ago and enjoyed the build and the character of this Foss kit.
 I picked up a Phase 6 semi kit to build. Is it worth sticking 4 servos in the wings and splitting the aileron for flaps? If so is there any recommendation for the size of the flaps and what mixes to use. My landing area is quite tight which isn't a problem with a zagi. I'm thinking crow braking could be beneficial but have no idea on the performance of the glider and whether this would be worthwhile.

Baldy

[James Hammond]

I've been out of any serious sloping for a few years. I've mainly been flying helis with an odd blast with a Zagi from time to time. I has a middle phase a long time ago and enjoyed the build and the character of this Foss kit.
 I picked up a Phase 6 semi kit to build. Is it worth sticking 4 servos in the wings and splitting the aileron for flaps? If so is there any recommendation for the size of the flaps and what mixes to use. My landing area is quite tight which isn't a problem with a zagi. I'm thinking crow braking could be beneficial but have no idea on the performance of the glider and whether this would be worthwhile.

Baldy

Hey Garry

I reckon it would be great - especially for a tight landing area.

If you split the ailerons to give roughly 60-40% or 65-35% with the smaller niumber being flaps then it would work really well.

The Phase 6 elevator is small but it is an elevator and so is highly effective - it would not need to be changed.

I remember people doing multiple landing approaches with a Phase 6 from time to time to get it just right. I'm comnpletely sure that if they'd had flaps then the planes could have been landed perfectly (almost) every time.

A credit to its genius designer, even after all these years (Got to be over 35 now?) that the kit has been out, its still up to date (Bar the flaps) and still capable of challenging any similar sized aerobat - including mine!

Go for it!

James Hammond - who is also a Garry Baldy.

[Allen the soarer]

See Link
http://www.rcmf.co.uk/4um/index.php/topic,82375.0.html

[James Hammond]

See Link
http://www.rcmf.co.uk/4um/index.php/topic,82375.0.html

Magic - absolute magic to see a real aeromodeller at work.

Love it.

I wonder who will be the first to make a moulded Phase 6 - with permission of course from the Big Man.

In a way it would be fantastic, in another it might be a shame.

Probably best left as it is - a Builders plane.

Personally, for all my moulding experience, I still get a heap more out of making a built up balsa structure and covering it with doped nylon - especially if its an own design.

They feel better flying too.

Sun through a built up wing structure? More magic!

Great stuff Allen!

[SteveBB]

Magic - absolute magic to see a real aeromodeller at work.

Love it.

I wonder who will be the first to make a moulded Phase 6 - with permission of course from the Big Man.

In a way it would be fantastic, in another it might be a shame.

Probably best left as it is - a Builders plane.

Personally, for all my moulding experience, I still get a heap more out of making a built up balsa structure and covering it with doped nylon - especially if its an own design.

They feel better flying too.

Sun through a built up wing structure? More magic!

Great stuff Allen!

I had a P6, but after building the P5 it knocks the P6 into a cocked hat. Better in every respect; I know not everyone likes AMT's, but I don't find it a problem. The other upside is building from plans means you can choose your own wood and other materials.

[slopeflyer]

I had a P6, but after building the P5 it knocks the P6 into a cocked hat. Better in every respect; I know not everyone likes AMT's, but I don't find it a problem. The other upside is building from plans means you can choose your own wood and other materials.

Don't.., your tempting me to get balsa bashing. Especially if we are in for another rainy summer.

[Peewhit]

I built a Phase 6 with flaps and a four servo wing last year.
It is worth putting the flaps in just for the crow braking.

The flaps are 10" long and need to be bottom hinged - I used silicone.

My set up is as follows:-
Flap movement (snap flap linked to elevator) 3/16" up and down with ailerons following.
Ailerons 7/16" up and down with linked flap about 30% of this.
Elevator recommendation is 5/16" up and down (I built mine with an all moving tail - have 1/2" movement each way and it will do 6ft loops).
Rudder 1 + 1/2" each way.
I started with the CofG at 4 + 2/3" from the trailing edge and then moved it back to 5" which seems to be spot on.

Hope this helps,
Peter.

[baldfist]

Thanks Guys. Really good advice.
Peter,I was thinking of leaving the flaps just as flaps. (i.e not linked to the elevator).but linked fully with aileron to still have the benefit of the full length of the designed aileron.Then mixing in a touch of down elevator in the landing phase. How is the pitch sensitivity  when they are coupled to elevator?

Baldy

[Peewhit]

Hi Baldy,

Pitch response with snap flap is brilliant. Either a little or a hell of a lot depending on how much you move the stick. I do have the all moving tail on mine as well.

I have heard that the elevator response on the standard P6 set up is adequate but not brilliant.
Just a small amount of snap flap will help a lot. Try it and see.

Rather than lining up the flaps with the ailerons, try them at about 30% of the aileron throw.
There will be less drag, less adverse yaw, and roll rate will still be very good.

Regards,

Peter.

[Yoyo]

Rather than lining up the flaps with the ailerons, try them at about 30% of the aileron throw.
There will be less drag, less adverse yaw, and roll rate will still be very good.

I agree, I do see the point about not having a discontinuity on the TE but really the ideal shape would be like the flutes on a screw, nothing at the fuse to full deflection at the tip.

Having the flaps move s lot less than the ailerons is much closer to that ideal.

[marcellus]

Just like a P5...