Today's Message Index:
----------------------
1. 04:36 AM - Re: Lightning/ Esqual Pics II (Scotty)
2. 08:48 AM - Fw: Re: Lightning v RV (nick otterback)
3. 10:35 AM - Re: Fw: Re: Lightning v RV (N1BZRich@AOL.COM)
4. 11:32 AM - Re: Re: Lightning/ Esqual Pics II (Brian Whittingham)
5. 11:46 AM - Re: Re: Lightning/ Esqual Pics II (Pete)
6. 11:54 AM - RV-6 vs Lightning revisited (nick otterback)
Message 1
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| Subject: | Re: Lightning/ Esqual Pics II |
--> Lightning-List message posted by: "Scotty" <mr.scotty@earthlink.net>
Buz,
I went back through some of the older letters and there is a well written artical
by Brian W. called Pilot Report - Lightning. In it he says the wing is a high
laminar flow wing. I sort of thought that, and always wondered when some
experimental plane manufacturer with a small engine would come up with that idea.
I just think it is amazing to have a small, good looking, fast airplane that
doesn't use much gas, all in one package.
--------
Scotty
He who doesn't read the news is UN-informed.
He who reads the news is IL-informed.
Mark Twain
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=66895#66895
Message 2
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| Subject: | Re: Fwd: Re: Lightning v RV |
Message 3
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| Subject: | Re: Fwd: Re: Lightning v RV |
Hey Nick,
Try sending this again to me. It was a blank message when it got here.
Buz
Message 4
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| Subject: | Re: Lightning/ Esqual Pics II |
--> Lightning-List message posted by: "Brian Whittingham" <dashvii@hotmail.com>
Scotty,
If you got the pics from the Lightning airfoil profile view you'll also
notice that the airfoil is also a relatively thick one. I didn't do the
design, but I believe that it was chosen as a giving a good tradoff of both
low drag, high lift. The takeoff distance is short, stall speed low, top
speed high, etc. It seems to be a very good airfoil for this kind of
airplane in terms of weight and speed ranges. Thanks, Brian W.
Message 5
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| Subject: | Re: Lightning/ Esqual Pics II |
--> Lightning-List message posted by: "Pete" <pete@flylightning.net>
I think you will find this airfoil very efficient for the 120 hp that we use
to power the aircraft. There are probably better wings for higher or lower
hp ratings but this one functions well in the speed range that the Jabiru
3300 can provide for the aircraft.
Pete
-----Original Message-----
From: owner-lightning-list-server@matronics.com
[mailto:owner-lightning-list-server@matronics.com] On Behalf Of Brian
Whittingham
Sent: Tuesday, October 10, 2006 1:32 PM
Subject: RE: Lightning-List: Re: Lightning/ Esqual Pics II
--> Lightning-List message posted by: "Brian Whittingham"
<dashvii@hotmail.com>
Scotty,
If you got the pics from the Lightning airfoil profile view you'll also
notice that the airfoil is also a relatively thick one. I didn't do the
design, but I believe that it was chosen as a giving a good tradoff of both
low drag, high lift. The takeoff distance is short, stall speed low, top
speed high, etc. It seems to be a very good airfoil for this kind of
airplane in terms of weight and speed ranges. Thanks, Brian W.
Message 6
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| Subject: | RV-6 vs Lightning revisited |
Lightning Group
The Flight i did was a RV-6A with 0-360 and fixed pitch 3 blade prop......we
were full fuel and 410lbs pilots and 20lbs junk in the back....... Take off roll
in the RV I would estimate to be about 750 feet ( i belive this airplane has
more of a cruise prop)......climb rate settled in at about 1000 FPM at 115mph...took
it up to about 5000 feet since this is where i did most of my testing
with the prototype lightning.....set the aircraft up for a cruise about 70% power
and found that we would move along at about 160mph IAS around 173-175 TAS......I
noticed that at speed the ailerons were still very light and that the
slightest bumb of them would move aircraft to an unwanted direction...the owner
has a wing leveler installed just for that ..he stated that the autopilot was
almost a given with the RV because of the light ailerons and pilot load during
XC.....The Lightnings ailerons "heavy up" with speed due too the plan form
of the wing and aileron design....this allows the
pilot to do other things with out having to constantly fly it..or have an auto
pilot.....At 70%power with the prototype Lightning in same conditions our cruise
will be 156-158IAS with a true of a liitle over 170mph TAS.....so very close...and
climb at gross will be 1100-1200fpm at 110 mph ...keep in mind that
this is the prototype Lightning and it is not the prettiest bird nor is it the
cleanest and i would expect that customer aircraft would be able to meet or
exceed this easily...as far as the pitch feel Both aircraft ...at all speeds are
Identical as far a I can measure or tell...a nice light feel... not twitcy
or unruely but what you would expect from a high perfromance machine.....I performed
several stalls in the RV and found that it did verly similar things in
a stalled situation except that the RV stalled about 8-10 mph higer in the flap
up or flap down configuration.....I than set the power for about 140mh IAS and
played around ...some Wingovers and steep
reversals ..and many other manuvers..and found that at this speed the aircraft
seemed near identical if you werent looking inside you would not have known what
you your were flying except a darn good plane....Next were some landings..
I did notice that coming in to teh pattern the RV slowed much quicker than the
Lightning ..so when flying the Lighning something to be aware of.......in the
Pattern the RV perfomed as i expected ... I used 100mph on downwind ...90 abeam
numbers 1/3 flap ..80 on base with 2/3 flaps ...and final 70mph full flap
all the way to round out.... the Lightning is 10mph slower in all cases....The
slower speed of the lightning allows for a much shorter landing than the RV...about
500 feet down and stopped with the lightning with out trying real hard.......alot
of problems occur during landing for pilots and i find that hte Lightning
is very easy to land and that the RV is again so similar ...except for
the higer speed.....that if you can fly the RV you
can fly a lightning......So first i would like to say that i loved flying the
RV and given the chance again i would do it....Why fly a lightning instead????
well it is only slightly slower than this particular RV i flew......I will typically
burn about 5.5 an hour in the lightning versues 10gph in the RV......so
cost is lower... the Lightning will get you into the air in the time that you
can build an RV wing....price for a good VFR machine is 60-65K...you could
do it for 55k but with all the new EFIS systems who can resist!....and if you
need to fly sport...well the lightning is light enough that it can be flown this
way also......Please feel free to ask more question this was my flight in a
nutshell ..and would be happy to sahre more.
Nick Otterback
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