Today's Message Index:
----------------------
1. 03:26 AM - Re: M-14 prop (Don Glittenberg)
2. 04:36 AM - Re: I read the Chinese translation of your article (cjpilot710@aol.com)
3. 08:37 PM - Re: Re: I read the Chinese translation of your article (Roger Doc Kemp)
4. 08:58 PM - Jim Ivey (ByronMFox@aol.com)
Message 1
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--> Yak-List message posted by: "Don Glittenberg" <auxtank@boldwireless.net>
When I get back I can measure my spare.
DRG
----- Original Message -----
From: <cpayne@joimail.com>
Subject: Yak-List: M-14 prop
> --> Yak-List message posted by: "cpayne@joimail.com" <cpayne@joimail.com>
>
> Does anyone happen to have the diameter of the paddle blade
> bolt circle diameter? It would save me from removing it and
> measuring :)
>
> Craig Payne
>
>
>
>
>
>
>
>
Message 2
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| Subject: | Re: I read the Chinese translation of your article |
--> Yak-List message posted by: cjpilot710@aol.com
In a message dated 4/22/2005 6:47:55 P.M. Eastern Daylight Time,
bsch72@hotmail.com writes:
Second try on Bushi's letter. Pappy
Dear Jim,
I have just read from Internet the Chinese translation of your article =E2=80=9CNot
a Copy=E2=80=9D, and I would like to express my appriciation to you.
I don=E2=80=99t know from where the translator read your original article.=20The
translator calls himself an air-modler, is building modle of CJ-6, thus quite
interested in details concerning the development history of that aircraft type.
He read and liked your article, and consequently translated it into Chinese
and put the translation on the web.
I recall you asked me the reason for the sea-gull type of the CJ-6=E2=80=99s wing.
I
explained during my visit to Oshkosh, but I am afraid I did=E2=80=99nt make myself
well understood. The reason was, when I designed the CJ-6 wing, I wanted the
left and right flaps to be built into one piece, thus to elimilate the vortex
of the air stream at flaps=E2=80=99 root when deflected. On a dihedral wing,
there
will be innevetiblely one gap at the flap roots when flaps deflected, thus
lift reduced. I hoped to expand the range between the maximum and minimum
speeds of the plane, therefore , I wanted to increase the lift augumentation of
the flaps to the maximum. So I chose to built the flaps of both sides into
one piece. This made the hinge lines of the flaps on both wings should be=20on
one line, that meant the bottom surface of center wing should be flat. Since
the center wing is tapered, and the thickness gradually become thinner
towards tips, when the bottom was kept flat, the upper surfaces appeared to have
an
anhidual, and consequently a sea-gull type turned out. Also, the one-piece=20
flap serves as a speed braker very effectively. The flap-down configuration
with a connected one-piece flap is an unusual feature of CJ-6 aerodynamic
design.
You as a pilot seating in the cockpit, and flaps are on the bottom side of
the wings therefore out of your vision, you may not noticed your flaps=E2=80=99
confirguration when deflected. But when you watch the video tapes of trainers=E2=80=99
take-offs and landings, you may immediately notice the difference between =20Cj-6
and Yaks=E2=80=99. Yaks have two pieces of flaps, with a remarkeble gap in-between
when deflected, and CJ-6 has a left-and =E2=80=93right-connected flap, going through
beneath the bottom of the fuselage.
By the way, the city where I saw the Flying-Tiger P-40 and P-38s was Guilin,
istead of Kungming, and Guilin was the city where I decided to design
aircraft in the future.
Thank your for your excellent article =E2=80=9CNot a Copy=E2=80=9D. Yaxi says
=E2=80=9CHi=E2=80=9D to
Dede.
My best wishes to you and your family.
Bushi Cheng
P.S. If you received this e-mail letter, please sent me a message. Thank you.
Message 3
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| Subject: | Re: I read the Chinese translation of your article |
--> Yak-List message posted by: "Roger Doc Kemp" <viperdoc@mindspring.com>
Pappy,
To cool. Not everyday you get to converse with the designer of the A/C you
fly.
Doc
> [Original Message]
> From: <cjpilot710@aol.com>
> To: <yak-list@matronics.com>; <yak52driver@earthlink.net>
> Date: 4/23/2005 6:27:11 AM
> Subject: Yak-List: Re: I read the Chinese translation of your article
>
> --> Yak-List message posted by: cjpilot710@aol.com
>
>
> In a message dated 4/22/2005 6:47:55 P.M. Eastern Daylight Time,
> bsch72@hotmail.com writes:
>
> Second try on Bushi's letter. Pappy
>
>
> Dear Jim,
> I have just read from Internet the Chinese translation of your article
=E2=80=9CNot
> a Copy=E2=80=9D, and I would like to express my appriciation to you.
> I don=E2=80=99t know from where the translator read your original
article.=20The
> translator calls himself an air-modler, is building modle of CJ-6, thus
quite
> interested in details concerning the development history of that
aircraft type.
> He read and liked your article, and consequently translated it into
Chinese
> and put the translation on the web.
> I recall you asked me the reason for the sea-gull type of the
CJ-6=E2=80=99s wing. I
> explained during my visit to Oshkosh, but I am afraid I did=E2=80=99nt
make myself
> well understood. The reason was, when I designed the CJ-6 wing, I
wanted the
> left and right flaps to be built into one piece, thus to elimilate the
vortex
> of the air stream at flaps=E2=80=99 root when deflected. On a dihedral
wing, there
> will be innevetiblely one gap at the flap roots when flaps deflected,
thus
> lift reduced. I hoped to expand the range between the maximum and
minimum
> speeds of the plane, therefore , I wanted to increase the lift
augumentation of
> the flaps to the maximum. So I chose to built the flaps of both sides
into
> one piece. This made the hinge lines of the flaps on both wings should
be=20on
> one line, that meant the bottom surface of center wing should be flat.
Since
> the center wing is tapered, and the thickness gradually become thinner
> towards tips, when the bottom was kept flat, the upper surfaces appeared
to have an
> anhidual, and consequently a sea-gull type turned out. Also, the
one-piece
> flap serves as a speed braker very effectively. The flap-down
configuration
> with a connected one-piece flap is an unusual feature of CJ-6
aerodynamic
> design.
> You as a pilot seating in the cockpit, and flaps are on the bottom side
of
> the wings therefore out of your vision, you may not noticed your
flaps=E2=80=99
> confirguration when deflected. But when you watch the video tapes of
trainers=E2=80=99
> take-offs and landings, you may immediately notice the difference
between =20Cj-6
> and Yaks=E2=80=99. Yaks have two pieces of flaps, with a remarkeble gap
in-between
> when deflected, and CJ-6 has a left-and =E2=80=93right-connected flap,
going through
> beneath the bottom of the fuselage.
> By the way, the city where I saw the Flying-Tiger P-40 and P-38s was
Guilin,
> istead of Kungming, and Guilin was the city where I decided to design
> aircraft in the future.
> Thank your for your excellent article =E2=80=9CNot a Copy=E2=80=9D. Yaxi
says =E2=80=9CHi=E2=80=9D to
> Dede.
> My best wishes to you and your family.
> Bushi Cheng
> P.S. If you received this e-mail letter, please sent me a message. Thank
you.
>
>
Message 4
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--> Yak-List message posted by: ByronMFox@aol.com
Jim Ivey, please contact me off list. Thanks, Blitz
Byron M. Fox
The RPA Store
80 Milland Drive
Mill Valley, CA 94941
415-307-2405 Cells Days
415-380-0907 Home Eves
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