Today's Message Index:
----------------------
1. 03:45 AM - Re: Re: Those Chinese Instruments (Chuck Jensen)
2. 04:34 AM - Re: Those Chinese Instruments (BobsV35B@aol.com)
3. 04:50 AM - Re: Those Chinese Instruments (Ed Anderson)
4. 06:17 AM - Re: crowbar OVM (Ron)
5. 10:55 AM - Solid State Trim, Speedbrake Relays and so on... (Bob)
6. 11:34 AM - Re: Solid State Trim, Speedbrake Relays and (Richard Riley)
7. 11:34 AM - Re: Solid State Trim, Speedbrake Relays and (Richard Riley)
8. 03:22 PM - Re: solid state relays (D Fritz)
Message 1
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| Subject: | Re: Those Chinese Instruments |
--> AeroElectric-List message posted by: "Chuck Jensen" <cjensen@dts9000.com>
It doesn't matter.
Do Not Archive
-----Original Message-----
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com]On Behalf Of Ed
Anderson
Subject: Re: AeroElectric-List: Re: Those Chinese Instruments
--> AeroElectric-List message posted by: "Ed Anderson" <eanderson@carolina.rr.com>
Sorry, Rumen, I jumped in the thread without realizing it was about Chinese
Electric gyros - this was vacuum driven.
Ed
----- Original Message -----
From: <rd2@evenlink.com>
Subject: AeroElectric-List: Re: Those Chinese Instruments
> --> AeroElectric-List message posted by: rd2@evenlink.com
>
> Hi Ed,
> I was wondering - how much does the el. (12V) RC Allen AI draw?
> Rumen
>
> _____________________Original message __________________________
> (received from Ed Anderson; Date: 05:57 PM 2/4/2005
> -0500)
> --> AeroElectric-List message posted by: "Ed Anderson"
> <eanderson@carolina.rr.com>
>
> Personal experience - purchased a Chinese AI and DG, knock-off look-alike
of
> RC Allen. AI never erected past 45 deg first time I ever fired it up -
> would cost $250 to repair (which was just a little less than what I paid
for
> it). Ditched it and got a real RC Allen and have 260 trouble free hours.
> The Chinese DG has not actually failed - but it clearly is not up to the
> standards we are used to. Just about useless - would certainly never rely
on
> it. There may be some good Chinese instruments but these were not them.
>
>
> Ed Anderson
>
>
Message 2
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| Subject: | Re: Those Chinese Instruments |
--> AeroElectric-List message posted by: BobsV35B@aol.com
In a message dated 2/5/2005 1:55:48 A.M. Central Standard Time,
eanderson@carolina.rr.com writes:
Personal experience - purchased a Chinese AI and DG, knock-off look-alike of
RC Allen
Good Morning Ed,
Interesting comment.
My instrument guru tells me that the R. C. Allen instruments are acceptable,
but relatively short lived.
I wonder why the Chinese have ripped off the low end USA product instead of
one of the higher end units?
Are the higher end units that much harder to manufacture? Or do they have
more expensive materials?
Do Not Archive
Happy Skies,
Old Bob
AKA
Bob Siegfried
Ancient Aviator
Stearman N3977A
Brookeridge Airpark LL22
Downers Grove, IL 60516
630 985-8502
Message 3
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| Subject: | Re: Those Chinese Instruments |
--> AeroElectric-List message posted by: "Ed Anderson" <eanderson@carolina.rr.com>
Good Morning, Bob.
Don't know the answer to your question, I would spectulate that perhaps they
thought they could make one close enough (performance/reliability wise) to
some of our low end stuff to be credible?
Ed
>
> Personal experience - purchased a Chinese AI and DG, knock-off look-alike
of
> RC Allen
>
>
> Good Morning Ed,
>
> Interesting comment.
>
> My instrument guru tells me that the R. C. Allen instruments are
acceptable,
> but relatively short lived.
>
> I wonder why the Chinese have ripped off the low end USA product instead
of
> one of the higher end units?
>
> Are the higher end units that much harder to manufacture? Or do they
have
> more expensive materials?
>
> Do Not Archive
>
> Happy Skies,
>
> Old Bob
> AKA
> Bob Siegfried
> Ancient Aviator
> Stearman N3977A
> Brookeridge Airpark LL22
> Downers Grove, IL 60516
> 630 985-8502
>
>
Message 4
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--> AeroElectric-List message posted by: "Ron" <rondefly@rtriano.com>
I am putting the crowbar OVM together and digikey shorted me on two items.
Are there any substitute's I can use that I can get at radio shack or Fry's.
the part are:
S6025L and 2N3904.
Thanks
Ron Triano N4710P
http://bld01.ipowerweb.com/contentmanagement/websites/rtrianoc/page8.html
Message 5
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| Subject: | Solid State Trim, Speedbrake Relays and so on... |
--> AeroElectric-List message posted by: "Bob" <rpgross@bellsouth.net>
I hate to use this list to spam but the thread appears so frequently I
thought I'd throw this out. When I built my F1, the need for trim control
was obvious so I developed a trim control system using an LMD18200T H-bridge
driver chip. Problem is it only handles 3 amps. Fine for Vans type A/C, but
inadequate for Lancairs, Glasairs, Velocities etc.
Along the way I been producing and selling an improved version of the
original Trim Control Module (TCM). Details are on my website link below.
Basically, the TCM does many cool tricks including: polling two set of
sticks for trim motor commands, prioritizing them; variable speed mode for
fast aircraft, runaway trim protection, and it does away with mechanical,
failure prone relays. All this $99 and available now
I've been slowly developing a high powered version that will easily handle
10 amps. In fact with heat sinking, it will handle a blistering 50 amps.
This module, when programmed with variations of processor firmware, will
serve as:
1. High power trim control module.
2. Intelligent flap control module.
3. Speedbrake control module
4. Boost pump control module
5. and even a Landing gear control module.
It's a lot of stuff, but all of it will share the same proven circuit board
and MODFET drive system. The common board design will accept an optional
pitot/static pressure transducer which, if opted for, will give true
variable speed trim motor operation based on IAS. It will also optionally
give the Flap Control Module "overspeed load relief" capability which
retracts the flaps for you (if you forget on a Go-Around). Think of this as
a life saver.
The new CPU also has a multi-channel10 bit A/D converter in it so the module
can read flap position, speedbrake position, flap control lever position,
speed control lever position, airspeed, fuel pressure (for auto boost pump
operation) and on and on.
Currently the board is being tested. All is going well. I expect the first
version s of the high power TCM to available within 2 months. Followed by
the Speedbrake module, the boost pump module, Flap Control module and then
the Landing gear control module.
Basic operation is like this. Please send me ideas and suggestions to
operating modes now as this is the time to be heard.
1. TCM, same operation as current TCM only optional pitot/static users
get true variable speed trim.
2, Flap Control Module. Either a selector lever positions the flaps or
three buttons marked UP,MID,FULL do. This will also accommodate Infinity
grips with the two position up/down switch. Holding the button for more that
one second causes flaps to drive full to the limit selected. Pitot/Static
versions always have load relief watching them. Flaps won't extend at
excessively high speeds, and will retract at excessively high speeds.
Aircraft using a "flap selector lever" must install a feedback device on the
flap system to report flap position to the FCM. The flaps may be position in
any position desired by moving the lever.
3.Speedbrake Control Module. Moving a lever commands the speed brake to move
the appropriate amount. An optional throttle switch will cause a "SPPEDBRAKE
WARNING" light to illuminate if the speedbrake are extended with the
throttle opened beyond a point determined by the builder. Feedback sensor
must be installed to speedbrake to report position back to SCM.
4. Boost Pump Control Module: Press the switch.pump on-light on, press
again.pump off-light off. Low fuel pressure turns pump on-light on. After
fifteen minute of pump operation, switch LED begins to flash reminding pilot
to do something.
Keep building and keep dreaming.it's worth the wait!
Warmest Regards,
Bob Gross
For the latest F1 Rocket/Synthetic Vision progress, click here...
www.F1-RocketBoy.com <http://www.f1-rocketboy.com/>
-----Disclaimer---------
The contents of this E-mail (including contents of enclosure/(s) or
attachment/(s) if any are privileged & confidential material of Innovative
Aviation Systems Inc. or RocketBoy Aircraft Products Inc. and should not be
disclosed to, used by, or copied in any manner by anyone other than intended
addressee/(s).If this E-mail (including enclosure/(s) or attachment/(s) if
any has been received in error, please advise sender immediately and delete
it from your system. The views expressed in this E-mail message (including
enclosure/(s) or attachment/(s) if any are those of the individual sender.
Message 6
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| Subject: | Re: Solid State Trim, Speedbrake Relays and |
so on...
--> AeroElectric-List message posted by: Richard Riley <richard@riley.net> so on...
I am interested in several of the modules.
I have 2 switches on my throttle - one at the closed end, one at the open
end. I'd want the speed brake to retract with activation of the "open"
throttle switch. I don't want it to retract with high airspeed, I use it
at 180 mph.
I'm also interested in the gear control. I DON'T want it to allow me to
retract the gear unless I'm at 90 mph or above.
Also interested in the fuel pump module. However, I'll use it with a SPDT
switch - up is ON, down is AUTO.
At 10:54 AM 2/5/05, you wrote:
>--> AeroElectric-List message posted by: "Bob" <rpgross@bellsouth.net>
>
>I hate to use this list to spam but the thread appears so frequently I
>thought I'd throw this out. When I built my F1, the need for trim control
>was obvious so I developed a trim control system using an LMD18200T H-bridge
>driver chip. Problem is it only handles 3 amps. Fine for Vans type A/C, but
>inadequate for Lancairs, Glasairs, Velocities etc.
>
>
>Along the way I been producing and selling an improved version of the
>original Trim Control Module (TCM). Details are on my website link below.
>Basically, the TCM does many cool tricks including: polling two set of
>sticks for trim motor commands, prioritizing them; variable speed mode for
>fast aircraft, runaway trim protection, and it does away with mechanical,
>failure prone relays. All this $99 and available now
>
>
>I've been slowly developing a high powered version that will easily handle
>10 amps. In fact with heat sinking, it will handle a blistering 50 amps.
>This module, when programmed with variations of processor firmware, will
>serve as:
>
>1. High power trim control module.
>2. Intelligent flap control module.
>3. Speedbrake control module
>4. Boost pump control module
>5. and even a Landing gear control module.
>
>
>It's a lot of stuff, but all of it will share the same proven circuit board
>and MODFET drive system. The common board design will accept an optional
>pitot/static pressure transducer which, if opted for, will give true
>variable speed trim motor operation based on IAS. It will also optionally
>give the Flap Control Module "overspeed load relief" capability which
>retracts the flaps for you (if you forget on a Go-Around). Think of this as
>a life saver.
>
>
>The new CPU also has a multi-channel10 bit A/D converter in it so the module
>can read flap position, speedbrake position, flap control lever position,
>speed control lever position, airspeed, fuel pressure (for auto boost pump
>operation) and on and on.
>
>
>Currently the board is being tested. All is going well. I expect the first
>version s of the high power TCM to available within 2 months. Followed by
>the Speedbrake module, the boost pump module, Flap Control module and then
>the Landing gear control module.
>
>
>Basic operation is like this. Please send me ideas and suggestions to
>operating modes now as this is the time to be heard.
>
>
>1. TCM, same operation as current TCM only optional pitot/static users
>get true variable speed trim.
>
>
> 2, Flap Control Module. Either a selector lever positions the flaps or
>three buttons marked UP,MID,FULL do. This will also accommodate Infinity
>grips with the two position up/down switch. Holding the button for more that
>one second causes flaps to drive full to the limit selected. Pitot/Static
>versions always have load relief watching them. Flaps won't extend at
>excessively high speeds, and will retract at excessively high speeds.
>Aircraft using a "flap selector lever" must install a feedback device on the
>flap system to report flap position to the FCM. The flaps may be position in
>any position desired by moving the lever.
>
>
>3.Speedbrake Control Module. Moving a lever commands the speed brake to move
>the appropriate amount. An optional throttle switch will cause a "SPPEDBRAKE
>WARNING" light to illuminate if the speedbrake are extended with the
>throttle opened beyond a point determined by the builder. Feedback sensor
>must be installed to speedbrake to report position back to SCM.
>
>
> 4. Boost Pump Control Module: Press the switch.pump on-light on, press
>again.pump off-light off. Low fuel pressure turns pump on-light on. After
>fifteen minute of pump operation, switch LED begins to flash reminding pilot
>to do something.
>
>
>Keep building and keep dreaming.it's worth the wait!
>
>
>Warmest Regards,
>
>
>Bob Gross
>For the latest F1 Rocket/Synthetic Vision progress, click here...
>www.F1-RocketBoy.com <http://www.f1-rocketboy.com/>
>
>
>-----Disclaimer---------
>The contents of this E-mail (including contents of enclosure/(s) or
>attachment/(s) if any are privileged & confidential material of Innovative
>Aviation Systems Inc. or RocketBoy Aircraft Products Inc. and should not be
>disclosed to, used by, or copied in any manner by anyone other than intended
>addressee/(s).If this E-mail (including enclosure/(s) or attachment/(s) if
>any has been received in error, please advise sender immediately and delete
>it from your system. The views expressed in this E-mail message (including
>enclosure/(s) or attachment/(s) if any are those of the individual sender.
>
>
Message 7
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| Subject: | Re: Solid State Trim, Speedbrake Relays and |
so on...
--> AeroElectric-List message posted by: Richard Riley <richard@riley.net> so on...
Sorry, I meant for that to only go to Bob.
>I am interested in several of the modules.
Message 8
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| Subject: | Re: solid state relays |
--> AeroElectric-List message posted by: D Fritz <dfritzj@yahoo.com>
Thanks for all the suggestions. Looks like I have a little studying to do, but
it doesn't appear too difficult.
Dan
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