Gliders > Slope Soaring

phase 6 test flight

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Happy Days:
To be honest Luke, I don't know of any planes that come out of a dive without at least a little "up" evelator.
Certainly none of mine do :?:

May be I'm misunderstanding you. :?:  Are you saying you expect the plane to pull it'self out of a dive?

I've always found that if a plane is in a dive I have to pull back on the stick for a moment to return the model to level flight. When it's in level flight I can let go of the controlls and (if properly trimmed) she'll continue in straight and level flight.

As for changing the angle of incidence,...............seems a bit drastic, and Fred is your man (or woman if he's wearing his frenchmaids outfit!) for matters relating to that.

Been flying my Phase 6 today. :D  Thoroughly enjoyed it. Provided it's balanced at the correct point and trimmed properly it's a lovely model. (And mine weighs 25% more than recomended.)
Very agile although, as we've said, rather quick.

If you're finding the Phase 6 a bit of a handfull, why not go back to your  foamie for a while, and then return to the Phase later. Or convert the Phase to twin aileron servos  so you can use spoilerons to slow her for landing. They certainly slow the plane up when landing.(Just an idea)

K.

DennisZ:

--- Quote from: Happy Days ---I don't know of any planes that come out of a dive without at least a little "up" evelator.
...
  Are you saying you expect the plane to pull it'self out of a dive?
...
I've always found that if a plane is in a dive I have to pull back on the stick for a moment to return the model to level flight. When it's in level flight I can let go of the controlls and (if properly trimmed) she'll continue in straight and level flight.

--- End quote ---


(sorry for interrupting)

according to basic aerodynamics,
plane trimmed for straight and level flight at given air speed
will recover from a dive as it's air speed increases - increase of speed will cause increase of a lift.

whether it has enough altitude is another question :(

just my 2c.

Happy Days:
WWWOOOooo,............HEAVY ALERT! :shock:

Aerodynamic theory,.........Increase in air speed causes increase in lift (and drag)

I'm afraid that's all far toooooo complicated for a simpleton like me Dennis.
I was just telling my friend Luke what I had experienced from flying the same model of plane.

I leave all the testicle stuff to people like you who understand it! :clap:

Keith

joe:
I usually set up my scale type models to be slightly nose heavy, so in a 45 degree dive they will gently pull out by themselves. For more aero stuff I try get it neutral. I'm only talking about gliders here.

Usually a nose heavy glider will pull out and a tail heavy glider will steepen it's dive which can be a little scary! :shock:  :shock:

Fred:
Hey there,

Very quick answer, changing nappies duty !  :D

Luke, if you put your glider in a 45 degrees dive, and release the stick, if he go more down, your CG is too backward.
If he goes up, CG is too forward...

Idealy, the glider should recover slowly from the dive...

Of course, for a sport glider, aerobatic ones should stay in the 45 degrees dive (neutral..) etc etc...

So, for me, and as the test shows, you need to put a bit of lead on the nose, and try again...
Changing the incidence, up to a certain point, will only change the flying attitude of the glider, that's all.

As I said, CG and incidence goes both together...

Find the correct CG, Incidence will not matter.
Like the guys who always put a piece of wood on the stab to change the incidence on a mouldy, when the issue certainly come from an incorrect CG.
You should see Marcel Guyang changing the incidence of his F3F models putting whatever incidence, and fly like nothing ever changed on his machine by just adjusting the CG... After this demonstration, well, you simply open your eyes on this Incidence/CofG relation...


Fred

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