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Old Sep 19, 2009, 11:32 AM
Faster!
Joshua Wesley's Avatar
United States, NV, Sparks
Joined Oct 2004
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Wings Continued

Sorry for the long daley between posts, sometimes work and life in general get in the way.

Wings are progressing nicely. Here you can see the full 3/32" sheeting. He chose the 3/32" over 1/16" for strength reasons, and he plans to sand somewhere around 1/32 off in preparation for silkspan.
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Old Sep 27, 2009, 10:48 AM
Faster!
Joshua Wesley's Avatar
United States, NV, Sparks
Joined Oct 2004
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Fuselage Begins! Batteries Are Here Too!!

Here are the fuselage sides with light ply and balsa doublers. Notice that the grain on the wood on the section near the trailing edge of the wing saddle is running vertical. This will allow a nice bend for the intake. It'll make more sense in future posts.

Got my batteries the other day. 4S1P 5000mah 30C Xtreme Power Systems. One battery is the largest battery I've ever owned, but to use all three at the same time... wow! And here is another plus, they actually weigh the same as the published specs. Infact, one is a couple grams less! Wow, thanks XPS!
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Old Sep 27, 2009, 11:08 AM
Faster!
Joshua Wesley's Avatar
United States, NV, Sparks
Joined Oct 2004
1,158 Posts
Charger, That's its Name!

After much debate and discussion we've decided to name this jet CHARGER. We wanted a cool name that has an electric influence. The usual names came up such as volt, lighting, re-volt, spark... etc. But they've been used, used a lot! What about Charger? How many planes do you know of named Charger? In know there's a little toy, but? I'm a Mopar kind of guy, but the color choice put the final nail on the naming coffin. Slime Green! Oh ya! While I don't think that any Chargers were offered in Slime Green, it is a Mopar color. So there you have it, A Slime Green Jet, Named Charger.
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Last edited by Joshua Wesley; Sep 27, 2009 at 12:01 PM.
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Old Sep 27, 2009, 11:23 AM
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Braintree, Essex
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Good name!

Voltair, photon?
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Old Sep 27, 2009, 12:01 PM
Faster!
Joshua Wesley's Avatar
United States, NV, Sparks
Joined Oct 2004
1,158 Posts
Quote:
Originally Posted by Whistling Watts
Good name!

Voltair, photon?
Nice I like those names.

I got the motor that you used in your test. I'm yet to run it up, possibly next weekend and we'll find out how the XPS batteries perform, and what kind of power loss we get at our altitude. Should be a 15% loss.
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Old Sep 27, 2009, 12:13 PM
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Braintree, Essex
Joined Mar 2006
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Quote:
Originally Posted by Joshua Wesley
Nice I like those names.

I got the motor that you used in your test. I'm yet to run it up, possibly next weekend and we'll find out how the XPS batteries perform, and what kind of power loss we get at our altitude. Should be a 15% loss.
There is a new pletti out that give 7.2 kg thrust on 40c 11s in the DS75.
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Old Sep 27, 2009, 12:40 PM
DELTAS RULE
corsair nut's Avatar
tehachapi, CA
Joined Jan 2006
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gettin there wes! hurry up!
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Old Sep 27, 2009, 01:03 PM
Faster!
Joshua Wesley's Avatar
United States, NV, Sparks
Joined Oct 2004
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Quote:
Originally Posted by corsair nut
gettin there wes! hurry up!
Yes sir! My photos lag behind the project by about a week because dad lives on the other end of the valley. But we are excpecting a test flight in the first week of November. This should give us plenty of time to flight test and tweek the Charger before AEF.

I've got to say, I'm getting a little nervous! Its going to be tough to get that baby on the ground and shut down on our little runway... my hands are shaking just writing this. Or maybe its the 3 cups of coffee I've had this morning
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Old Sep 27, 2009, 02:17 PM
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MaHö's Avatar
Deutschland, BW, Friedrichshafen
Joined Dec 2001
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Quote:
Originally Posted by Whistling Watts
There is a new pletti out that give 7.2 kg thrust on 40c 11s in the DS75.
I´ve seen this Dinator 70 motor in a Spark @ the JetPower flown by Dave Wilshere (Rotors and Motors UK). Mhhhh that was really cool and a lot of speed. Looks like a good motor for the DS75. They said its around 4600W.
reg Martin
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Old Sep 27, 2009, 03:42 PM
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Still not run the 1527 2.5D with decent cells, must do that soon, I reckon it will be pretty close to that anyway.
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Old Sep 27, 2009, 03:58 PM
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Quote:
Originally Posted by Whistling Watts
Still not run the 1527 2.5D with decent cells, must do that soon, I reckon it will be pretty close to that anyway.
Yes it is, with better cells it would get there.
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Old Sep 27, 2009, 06:25 PM
Faster!
Joshua Wesley's Avatar
United States, NV, Sparks
Joined Oct 2004
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Quote:
Originally Posted by Whistling Watts
Yes it is, with better cells it would get there.
Oh ya. Think I should change my title to 4600watts?

How much thrust would you gain if you had 100% FSA exhaust?
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Old Sep 27, 2009, 08:08 PM
deltas are cool
AIR SALLY's Avatar
Tehachapi ,CA.
Joined Apr 2006
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static, youd get a little, but it will absolutely kill top end and in flight vertical.
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Old Sep 28, 2009, 02:19 AM
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Exactly so, at your altitude I would consider bringing the outlet diameter down to around 88mm for first flights.

Dont know what outlet size Daniel used on his tests, I just know the one I used.
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Old Sep 28, 2009, 03:51 AM
smug in granny panties
monkamarm2000's Avatar
NorCal Silicon Valley
Joined Aug 2002
11,779 Posts
did you ever test on 1521-1518's Steve? was just thinking of one was staying in 4 to 4.5 range there would be what? a 1/2 pound weight drop advantage right there? I.E be like making 1/2 pound more thrust, or just not needing 1/2 pound more however one wanted to see it.
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