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Old Oct 22, 2003, 06:15 PM
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davidleitch's Avatar
Sydney Australia
Joined Feb 2002
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Bigger gliders, bigger $ and big choices

Help me decide.

I am trying to work out if a fully molded 3 metre e glider will fly much differerently (better) to my 100 inch organic.

How will the performance of an E graphite or Stratos differ to the organic?

Secondly: Which big E glider should I choose? I want a thermalling hotliner.

Fast climbs, wide speed range, ability to do fast runs but also tight low speed circles, easy to land and easy to transport.

The obvious choices seem to be the Stratos and the Graphite, or possibly a Stork. The only disadvantage of the Stratos I can see is the one piece V tail which will be a nuisance for transport. The graphite appears to be limited to 12 cells.

How long is the fuselage on the graphite or stratos?

The reason for asking is that Xmas is approaching and the stars are in alignment.

All advice and comments are appreciated. It probably costs the best part of $2000 to get something like this in the air, so I hope to avoid doing it twice.

thanks
dave
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Old Oct 22, 2003, 06:44 PM
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United States, FL, Starke
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Dave,
I own the TD version of the Stratos and both E and TD versions of the Graphite (actually I have 2 fuzes for the same wing, both fuzes are cross-tails). I fly strictly TD with them so I could not tell you about their hotliner abilities, if any.

The cross tail E-Graphite fuze is about 53.5" long including a spinner. I feel it flies substantially better than the Organic which, of course, is saying something! My Stratos is a cross tail TD also so my fuze length won't help According to the ShredAir site, the fuze is 57+".

Why do you feel the Graphite is limited to 12 cells? I have a Kontronik 500-27+6.7:1, a 12 cell pack of CP1700SCR's (zapped) and an 18.5x12 prop. It climbs straight up! Although I haven't tried it, if you built a pack with 1 row on top of 2 rows, it looks like you could fit at least 21 cells (3 rows of 7).

I think both planes fly very similarly although I am still dialing in my Graphites. The Graphite is also more than $200 less.

Dave
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Old Oct 22, 2003, 07:01 PM
Tragic case
davidleitch's Avatar
Sydney Australia
Joined Feb 2002
5,875 Posts
Dave

Thank you for your thoughts, I was hoping you'd chime in.

Someone (Paul Ferradas?) mentioned that there might be a CG issue with more than 12x2400 cells. Probably 12 cells is what I would start with anyhow, as I have a 10 cell motor that could be pushed to 12.

regards
Dave
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Old Oct 22, 2003, 07:35 PM
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That's probably true. I'm sure I could get a few more cells in and still get it balanced but I'm extremely pleased with the performance I'm getting. In the cross tail version you put the elevator and rudder servos in the tail fin.
http://www.azflight.com/daw/graphite...pics/index.htm

Which one are you considering if you got with the Graphite? Xtail or Vtail?

Dave
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Old Oct 22, 2003, 08:01 PM
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davidleitch's Avatar
Sydney Australia
Joined Feb 2002
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Xtail. I am assuming the stab/elevator can be removed for transport? A 54" fuselage may fit in the back of my hatchback. Its nice to keep the plane in the car so as to fly before work.

Price is a (big) factor, especially in $A=$US0.7, but I've always been partial to the look of the Stratos.
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Old Oct 22, 2003, 08:06 PM
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davidleitch's Avatar
Sydney Australia
Joined Feb 2002
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Relooking at Dave Wenzlick's photos, I can see a lot of areas for an all thumbs person like myself to stuff up the servo installation in the Graphite tail.
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Old Oct 22, 2003, 08:07 PM
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I store my fuze with the nose cone off. This allows me to charge the battery and, in your case, would make the necessary space much shorter. The nose cone contains the motor and battery.

Here's the electric...
http://www.mustangone.com/MyRCHanger/GraphiteE1.jpg
http://www.mustangone.com/MyRCHanger/GraphiteE2.jpg

Dave
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Old Oct 23, 2003, 02:04 AM
Tragic case
davidleitch's Avatar
Sydney Australia
Joined Feb 2002
5,875 Posts
Dave

Your graphite is tres cool, and the flying field looks pleasant as well.

I do think I want a glider that is the electric eqiuvalent of F3B, that is its competitive at distance and speed tasks as well as thermal duration.

I guess that means pushing up the wing loading a bit.

The organic is strong enough for those tasks but I have a low wing loading and then energy retention is accordingly low. The narrow fuselage in the organic is not well suited to upping the battery count.
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Old Oct 23, 2003, 02:58 AM
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Singapore
Joined Jul 2003
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David,

Sounds that you're looking for the perfect glider...

The X-Models X-Calibur seems to be a good contender too.
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Old Oct 23, 2003, 06:48 AM
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United States, FL, Starke
Joined Apr 2002
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Dave,
It sounds like you really want the Stratos Sle. If you can bear the extra cost, its the plane you're looking for. It can take lots of batteries, strong and looks great.

I don't see how you can go wrong (as long as it will fit in your car).

Dave
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Old Oct 23, 2003, 09:33 AM
Turbines suck ;-)
Australia, QLD, Brisbane
Joined Mar 2000
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Quote:
Originally posted by Doc Data
I store my fuze with the nose cone off. This allows me to charge the battery and, in your case, would make the necessary space much shorter. The nose cone contains the motor and battery.

Here's the electric...
http://www.mustangone.com/MySailPlanes/GraphiteE1.jpg
http://www.mustangone.com/MySailPlanes/GraphiteE2.jpg

Dave
I would like one of thioe stands but, here in the UK the materials would cost about 40-00!
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Old Oct 24, 2003, 10:06 AM
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United States, FL, Starke
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PCV pipe is that expensive? It only cost me a few dollars.

Here are the plans for it...
http://www.mustangone.com/MySailPlanes/stand.html

Dave
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Old Oct 24, 2003, 10:18 AM
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Ellipse 4 all the way!
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Old Oct 24, 2003, 04:27 PM
Launch the drones ...
Ashtabula, OH USA
Joined May 1999
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I fly my eGraphite (V-tail) with 14 CP 1700 cells. This is a flat pack, of two columns of 7 cells each, soldered end to end. I could go to 16 cells (there's room), but it already climbs vertically with the 14. Note that I don't feel the need to go to 2400 cells, because I get 3+ climbs to spec height as it is.
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Old Oct 24, 2003, 04:49 PM
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Quote:
Originally posted by davidleitch
I do think I want a glider that is the electric eqiuvalent of F3B
sounds like you want a E4!
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