Re: flying like Bill Gowen

From: William Gowen <wdgowen_at_gmail.com>
Date: Sat, 11 Aug 2012 22:03:01 -0400

Gary
It's very similar to what I said about the canted MS. Say you've arrived
at what you think is an ideal cruise trim regardless of the MS angle.
Then hold the model out so that you're looking at the side view and
imagine that the wing, stab and fuse are 3 unconnected parts and that
you want to rotate the fuse from a nose up position to a horizontal
position. To accomplish that you have to increase the positive incidence
in the wing and decrease the negative incidence in the stab so that the
decalage (the angular difference between the two) stays the same.

When I first started flying I was taught to keep the wing parallel to
the MS and use negative incidence in the stab to trim the model. Now I
start out with the stab parallel to the motorstick and use positive
incidence in the wing to trim the model. After the model is flying okay
there are things that can cause this to shift. My F1L's almost always
need to be more nose up to launch successfully. My LPP needs to be a
little nose-up and my F1M and my A6 don't care - they fly the same
regardless of the MS angle.

Mark has pointed out several times that I'm flying with downthrust
compared to what others do. I don't agree. In my way of thinking *they*
are flying with upthrust compared to the model's direction of flight and
I'm flying with closer to neutral thrust. It may all be BS but the
results have been pretty good.

On 8/11/2012 6:04 PM, Warthodson_at_aol.com wrote:
>
> Bill, or anyone,
> Can you explain the basic trim settings that cause a plane to fly flat
> vs nose up. For instance, I can trim a plane to fly flat by simply
> decreasing the negative incidence of the stab, but then my plane will
> not be flying near stall which I have read is the optimum for
> duration. So, it must involve more that simply less negative stab
> incidence.
> Thanks,
> Gary
> -----Original Message-----
> From: William Gowen <wdgowen_at_gmail.com>
> To: Indoor_Construction <Indoor_Construction_at_yahoogroups.com>
> Sent: Sat, Aug 11, 2012 4:04 pm
> Subject: Re: [Indoor_Construction] Re: 2012 F1D World Championship
> Coverage
>
> Thanks to you both for that! I've preached that technique for so long
> I'm sick of hearing myself talk about it. But the credit goes to
> Bernie Hunt.
>
> On 8/11/2012 4:58 PM, Benjamin Saks wrote:
>> Bill,
>>
>> Actually brett and I both said today that they look like a "Gowen"
>> F1D.....
>>
>> Also, they recover from tail slides and stalls very well, and handle
>> the turbulence well too.
>>
>> On Sat, Aug 11, 2012 at 10:56 PM, William Gowen <wdgowen_at_gmail.com
>> <mailto:wdgowen_at_gmail.com>> wrote:
>>
>>
>>
>>
>>
>
>
Received on Sat Aug 11 2012 - 19:03:20 CEST