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How is D-EGFL aka White Lightning?

 
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nowacklinden(at)gmx.de
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PostPosted: Tue May 23, 2017 5:52 am    Post subject: How is D-EGFL aka White Lightning? Reply with quote

Hi Bear, hello group!

Sorry for the long time it took to answer.

My White Lightning flies fine. The ULPower 390iS is humming along
nicely, it has over 50hrs now ( 44hrs flight time so far).

The CS propeller from GT / Italy runs very smooth. I had to sent it to
Italy last year because the blade pitch motor and its gear was not
working as it should. They took a long time to fix it, because they had
just developed a very nice new blade that would fit my hub. When they
finally had made a set for me they found that it wouldn`t work because
it needed the (much higher ) force of the hydraulic hub it was made for .

So they sent me the prop back with the old blades and with a new pitch
drive motor. The prop can now be adjusted at any speed and pwr setting,
so I am happy for the moment. They are in the process to make a modified
version of their new blade ( It`s called V29 btw) that will finally work
with my electric hub. I have high hopes that the new blades will add
some knots.

Performance at present is quite good. I get 145 knots IAS in 3000ft
with 2600rpm and WOT meaning 26MAP, that means about 110 hp output.
The fuel consumption is 25l /h, er... a little more than 6 USG. Autogas,
sold for not more than $6,75 per USG in Germany. Not even $42 for gas
per hour. Cheap, huh? Wink Well, my hangar neighbor`s Arrow burns fuel
worth $99 per hr! And he is NOT getting 145KIAS with 75%!

I have solved the problem of CHTs being too low by partially closing
the cooling outlet area and getting rid of the lip that protruded down
from the underside of the cowl. That alone gave me 3 KIAS more!

Btw I have calibrated my airspeed indication by checking the TAS
indicated on my GRT. The error in my case is about 3KTAS (at)140KTAS. At
low speeds the error is almost zero. Good work, you guys from GRT!

In case anybody is interested in an Excel spreadsheed needed for this
check , just mail. For the check you need a GPS GS and the GPS track.
The check can, of course, be used to calculate your IAS error and the
calibrated airspeeds.

Finally: I am absolutely happy with my central single stick and the
throttle on the side of the cockpit. I am looking back at 18 years of
flying with side sticks commercially so this just feels natural to me.
And the cockpit much roomier!

That`s it for the moment. When I have flown with the new blades I plan
to write something for Dennis` Newsletter. With pics. And maybe an
application for Lightning of the Quarter!

Gerd

Am 19.05.2017 um 09:02 schrieb Lightning-List Digest Server:
[quote] *

==================================================
Online Versions of Today's List Digest Archive
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Today's complete Lightning-List Digest can also be found in either of the
two Web Links listed below. The .html file includes the Digest formatted
in HTML for viewing with a web browser and features Hyperlinked Indexes
and Message Navigation. The .txt file includes the plain ASCII version
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HTML Version:

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http://www.matronics.com/digest/digestview.php?Style=82701&View=txt&Chapter 17-05-18&Archive=Lightning
================================================
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----------------------------------------------------------
Lightning-List Digest Archive
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Total Messages Posted Thu 05/18/17: 1
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Today's Message Index:
----------------------

1. 04:23 PM - Re: Re: Lightning-List Digest: 1 Msgs - 05/09/17 (Paul Bryant)



________________________________ Message 1 _____________________________________
Time: 04:23:30 PM PST US
From: Paul Bryant <n5pb(at)AOL.COM>
Subject: Re: Re: Lightning-List Digest: 1 Msgs - 05/09/17
Gerd,

That sounded like a lot of fun...
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n5pb(at)AOL.COM
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PostPosted: Tue May 23, 2017 12:47 pm    Post subject: How is D-EGFL aka White Lightning? Reply with quote

Gerd,
Nice update report on your Lightning. Glad to hear you got the prop blade pitch motor/gear box corrected and the CHT's as well. it's sounds like it's flying nicely now.
I would be interested in receiving the excel spreadsheet you used to calibrate your IAS. i'd be curious to see how close mine is (or is not). It's been awhile since I did a simple check, but would like to check it again using your spreadsheet.

thanks.
Hope you and Uli are doing well.
Bear.

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dwwilt



Joined: 06 Dec 2010
Posts: 185

PostPosted: Wed May 24, 2017 10:59 am    Post subject: How is D-EGFL aka White Lightning? Reply with quote

Gerd,

I don't always get the matronics e-mails. I am surprised I got this one. It sounds like a little article about your propeller would be good for the next newsletter. I would certainly appreciate it if you could put one together. Pictures would certainly help. And a Pilot Spotlight about you sometime would help as well.

Regards,

Dennis W. Wilt
N616DW (Arion Lightning S/N 132)




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