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Grumman Goose

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Just Love this Plane,,, However, the flight dynamics seem off to me,,,NOT that I have any real world experience in one,,, It is just that every time I throttle back in flight, The plane noses up, gains altitude AND gains speed,,,I do know that with the engines so HUGE and high on the plane, this could affect pitch??? However, the speed kinda makes me curious,,,Am I the only one who notices this,,,I also notice that in most of the OEM planes I cannot get what would seem like appropriate reaction from SLIPPING,,,And anyone know if there is as yet any flight dynamics updates ???42 Hours Logged and counting FSX,,,Happy Flying,,,ANDThanks for any help or comments on the subject...Dean

>>NOT that I have any real world experience in one,,, It is just>that every time I throttle back in flight, The plane noses up,>gains altitude AND gains speed,,,>I have also had similar experiences.

>Just Love this Plane,,, However, the flight dynamics seem off>to me,,,>>NOT that I have any real world experience in one,,, It is just>that every time I throttle back in flight, The plane noses up,>gains altitude AND gains speed,,,>>I do know that with the engines so HUGE and high on the plane,>this could affect pitch??? However, the speed kinda makes me>curious,,,>>Am I the only one who notices this,,,>I also notice that in most of the OEM planes I cannot get what>would seem like appropriate reaction from SLIPPING,,,>This thread caught my eye yesterday, and although I'd puttered around in the Goose a few times, I hadn't noticed a problem with gaining airspeed while throttling back.Today, I took the Goose up for a spin. As to the engines, it could make all the difference in pitch, just as different types of flaps can make an airplane pitch up or down with application. As I have not flown a real Goose, I can't be specific on power/pitch being authentic.However, while maintaining level flight, or starting a descent, I did NOT get an increase in airspeed while pulling the throttle back. This IS good!As to slips, the OEMs will do forward and slid slips, but with varying degrees of success. Third party aircraft such as RealAir Simulations have specialized in the perfect "slipping ability".L.Adamson

I had to take it out for a quick fix, but it's back in "files" now.

I have noticed a slight "nose up" if the throttles are pulled back quickly in the Goose. I have not noticed a gain in speed though. After saying that I haven't really tested it fairly as the flying was done in a rather rough manner. Maybe something to watch when I'm feeling more serious.What do you guys think about the depth the Goose sits in the water? Does anyone agree that it is too far out, as some people are saying? I've never flown or even seen a real Goose so I'm green on this matter. But I like the way it looks & flys, so far.

There's a fix here on Avsim for the depth at which it sits in the water. I think it might be in the lib, otherwise search for FSX goose here in the forum.Thomas[a href=http://www.flyingscool.com] http://www.flyingscool.com/images/Signature.jpg [/a]I like using VC's :-)N15802 KASH '73 Piper Cherokee Challenger 180

Tom Perry

 

Signature.jpg

Dean,I have never flown the Goose, or even ridden in one, but I will take a WAG at it.As you noted, the engines sit high on the wing, so the thrust axis is way above the CG. This creates a moment acting to pitch the nose downward.So let's say you are at cruise power and trimmed for level flight. Now chop the power and the nose-down thrust moment is reduced. The plane now has too much nose-up trim and thus pitches upward.But why it would gain airspeed is beyond me. With less power applied and climbing, seems like it should slow.John

>But why it would gain airspeed is beyond me. With less power>applied and climbing, seems like it should slow.>Mine slows! :-hah

I did some flying with the Goose yesterday & mine slows after reducing throttle and the nose will pitch up a "whisker" for a short time. The pitch up only occurs if the throttles are moved about 5 or 10" in one movement. Move them slowly which I expect to be the norm & not much happens re. the pitch up thing. Note that I am refering to throttle changes while trimmed for level flight only.Other Goose matters;After looking at heaps of photos of Geese (Gooses lol) I decided to apply the Contacts edit number one option. That is, the Goose now sits slightly lower in the water. The photos all showed the water to be about one third the way up the main wheels so the first edit option seems to be about correct, in my opinion. I don't think it effects anything else.Does anyone know if the real Goose props are counter rotating? My FSX Goose pulls to left on takeoff needing a fair bit of rudder to correct. Just wondering, no problem.

Thanks a lot for the file for the Goose.Rob ARedding, CA

As I'm not at my regular computer right now, I haven't checked the tweak yet.I just wanted to add a question (and perhaps get the info whether it has been addressed in the tweaked Goose from the Yahoo group).I received an e-mail today in which someone asked me if the behaviour on the ground was realistic for the Goose. He was talking about a problem which I also had several times. Although the Goose is already really slow, stepping on the brakes can very easily result in the plane flipping over completely and thus crashing.I know that the engines change the center of gravity up and forward, but isn't this behaviour somehow exaggerated?I'll have a look at the wheel contact points later today, but I don't think they'll be off too much.So, does the tweak change the weight distribution so that this flipping over is reduced? Or is it indeed realistic and such a plane would be flipping over so easily just by stepping on the brakes?Thanks in advance,Stefan "TheJedi" Weiss

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