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From: Stormin' Norman <norman@schwarzkopf.in.memorium>
Newsgroups: alt.binaries.pictures.aviation
Subject: Re: Focke-Achgelis Fa 223 pics 3
Message-ID: <fkf8pdlqrgvlgdql4fqoen9t5h6rm5fn7e@4ax.com>
References: <pn0k66021n7@drn.newsguy.com> <fas7pdl5pijqe9u79i2vbk5eq31vg0nnf6@4ax.com> <pn14fi02tfs@drn.newsguy.com>
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Date: Sat, 08 Sep 2018 14:28:23 -0700
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On 8 Sep 2018 11:30:10 -0700, Miloch <Miloch_member@newsguy.com>
wrote:
>In article <fas7pdl5pijqe9u79i2vbk5eq31vg0nnf6@4ax.com>, Stormin' Norman says...
>>
>>On 8 Sep 2018 06:52:06 -0700, Miloch <Miloch_member@newsguy.com>
>>wrote:
>>
>>Your post prompted me to wonder about how they controlled this
>>impressive machine. I found another site with quite a bit of detailed
>>information. Below is an excerpt and a link to the site.
>>
>>"...Control of the Fa 223 was in the following manner. The control
>>column was used to give longitudinal control by equal cyclic-pitch
>>change of the rotor blades, and lateral control by differential
>>collective-pitch change of the rotor blades. The rudder pedals were
>>used to give yaw control by differential cyclic-pitch change of the
>>rotor blades, the control effect being increased by use of the rudder
>>during forward flight. A trimmer wheel was provided for tailplane
>>adjustment, and all control links were by cables. Two machines
>>(numbered 13 and 16) were experimentally fitted with a separate
>>collective-pitch lever next to the throttle, and a throttle governor
>>to maintain a constant engine speed, but this arrangement was under
>>development only. On all other machines, the pilot had a lever with
>>only two positions for collective pitch, one for powered setting and
>>one for autorotation. In addition, an automatic device adjusted the
>>tailplane and altered the blade pitch from the powered setting to the
>>autorotation setting for a glide landing in the event of a power
>>failure, but the pitch could not be reset in the air. Thus, apart from
>>pitch adjustments for attitude control, the rotors must be regarded as
>>having had a fixed pitch, the lift being controlled by the engine
>>throttle. This fact reduced the safety, handling, and performance
>>characteristics and, in order to maintain a constant rotor speed
>>during a climb, progressive engine throttling was necessary and this
>>cancelled out the benefits of an engine supercharger. Considerable
>>skill and experience was also necessary during hovering and low-speed
>>flight because of the very sluggish lift control; more than one Fa 223
>>was lost when making downwind turns at low level. ...."
>>
>>http://www.aviastar.org/helicopters_eng/focke_drache.php
>>
>
>Chinooks front and back rotors...on paper, it looks simple but the handling
>characteristics via collective and cyclic would be hugely different...I think.
>
>Looks like you got all the pics...all I got were three pics plus the vid and not
>the pic you referenced.
>
>
I see a total of 19 posts in your series from this morning.
I have certainly noticed a degradation in the quality of service from
the Usenet providers as of late.
--
"If you think for a moment that your McCarthy-era tactics will suppress
the voices of criticism, you are sadly mistaken. The criticism will
continue until you become the leader we prayed you would be."
- Admiral William H. McRaven (To Donald Trump, 2018)
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