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1. 09:19 AM - Re: Esqual Stability (Dave Mccorquodale)
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| Subject: | Re: Esqual Stability |
Hi Clive
It is always a pleasure reading your posts. As you know I also have an
Esqual with many changes done. I have purchaced a Lightning cowl a
couple of years ago, I have not cut it down to fit because I to thought
about the longer engine mount. How much did it help moving the engine
forward. I have a top over haul just around the corner and was thinking
of making the change then.. Also was the mount spendy?
When my mount was built it was 2 degrees off so my engine is aiming up 2
degrees of center line. Having an engine inline and weight more forward
would have to help
Keep up the good work
Dave McCorquodale
----- Original Message -----
From: James, Clive R
To: lightning-list@matronics.com
Sent: Tuesday, August 07, 2012 2:30 PM
Subject: Lightning-List: Esqual Stability
Hi Luigi, I am good. The weather in the UK has finally improved and
I=99ve been doing some good flying.
Back offshore now in the North sea and hoping the weather will still
have some summer in it when I get back next time.
Mostly the flying was in the Jabiru as the Esqual is still on a test
permit and so cannot go further than 25miles past 3 airfields on the
East side of England (still 60 miles to play in).
The changes I made for the stability were:
New engine mount from Arion that moved the engine forward 18mm (I had
to buy new cowlings but I wanted the Lightning ones for the cooling
anyway).
Nick recommended I tip the front of the tail plane down by
3/16=9D, this was about 3 degrees and I managed to get that
movement by lifting the back.
I fitted a new =98flap type=99 trim tab with electric
servo and removed the bungee trim, this was a Lightning retrofit kit
trim kit though I did make the flap a bit bigger.
During the test flying I limited the flap travel to 22 degrees to help
with the trim on approach (as mentioned in the kit planes article for
the Lighting which was interesting).
It was still too heavy under a FWD C of G so when the evaluation
flying was being done for the LAA it was limited some more.
Now at 16 degrees max flap it is hands off on approach unless it is
solo with low fuel. Minimum stall is still 35 knots
All round much nicer to fly but still very sporty.
The flight test report was done by an independent test pilot but he
was very happy and has sent a positive recommendation.
The flight test was to CS-VLA (you can find that on the net). It was
great fun as I was the =98talking ballast=99 I really saw
what the plane could do.
I am just waiting to get feedback on that report and hope to have a
full PoF soon.
I will send you the report directly.
The picture is the test pilot about to do the solo sortie.
He was mega experienced, graduate of the Empire Test Pilot program,
many years ago now as he is 83.
I hope I can still fly like he does when I=99m that age.
I trust all is well in Italy and you are flying your Esqual regularly
(after you pay your luxury tax to the idiots in charge!).
Best Regards, Clive
From: owner-lightning-list-server@matronics.com
[mailto:owner-lightning-list-server@matronics.com] On Behalf Of luigi di
napoli
Sent: 07 August 2012 19:40
To: lightning-list@matronics.com
Subject: Re: Lightning-List: Kitplanes September Issue
Hi Clive,
how are you ?
I read about the Esqual stability and I am curious to know which
improvements the Esqual needs.
Did you calculate a good C&G to improve the phugoid ? And what about
the max flap setting ?
I remember that you, some time ago, sent a mail with something
inherent but forgot it.
Do you have any news ? And what about the PoF for your bird ?
Waiting your news best regards and enjoy your vacation.
Luigi
-------------------------------------------------------------------------
-----
Da: "James, Clive R" <clive.james@uk.bp.com>
A: lightning-list@matronics.com
Inviato: Marted=C3=AC 7 Agosto 2012 20:05
Oggetto: RE: Lightning-List: Kitplanes September Issue
Still in your debt for the fix on the Esqual !
Permit is getting closer but not yet got my hands on it.
Regards, Clive
From: owner-lightning-list-server@matronics.com
[mailto:owner-lightning-list-server@matronics.com] On Behalf Of Nick
Otterback
Sent: 07 August 2012 18:57
To: lightning-list@matronics.com
Subject: Re: Lightning-List: Kitplanes September Issue
Thanks for the kind words. The company is not mine it is Petes. We are
partners along with a few other investors. Pete simply allows me the
freedom to further design as needed.
Thanks
Nick
Sent from my pocket
On Aug 7, 2012, at 11:53 AM, "James, Clive R" <clive.james@uk.bp.com>
wrote:
Reads well, as someone who has gone through the stability and trim
issues with the Esqual I can appreciate the improvements.
So now the Esqual is Swedish? And you didn=C3=A2=82=AC=84=A2t
crack a mould off the fuselage? What=C3=A2=82=AC=84=A2s that
smell? I=C3=A2=82=AC=84=A2ll bet Francesc is turning is his grave.
Good to see you aren=C3=A2=82=AC=84=A2t sitting on your hands,
and nice to see Pete gave you the company!
Regards, Clive
From: owner-lightning-list-server@matronics.com
[mailto:owner-lightning-list-server@matronics.com] On Behalf Of Nick
Otterback
Sent: 07 August 2012 16:40
To: Lightning-list@matronics.com
Subject: Lightning-List: Kitplanes September Issue
Here is the article in PDF form for those of you that have not read
it yet.
thanks
Nick Otterback
Arion Aircraft LLC
R&D Technical Support
931-680-1781
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