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Old Feb 25, 2010, 02:29 PM
Jhondra is offline
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hum...seems to me like you really need a camera girl AND a toss/catch girl.
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Old Feb 25, 2010, 08:56 PM
downeym is offline
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ha! I tried that... she lost interest after a few flights
Old Feb 25, 2010, 09:23 PM
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Yeah, dang it all. I have that same problem...
Old Apr 01, 2010, 06:51 PM
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Guys, I'm thinking about a queen bee as a new platform.

I will also be using a DL 433 system and want to fly 10+kms

What is the consensus on required power? My thoughts are 11" + folding prop (big and slow is more efficient, given the wing isn't a rocket naturally) and 900kv motor around 400watts. Am I close to the mark?

Also, I used to own a couple ele bees, and although they flew well, because the motor was rear mounted they stalled very quick flying downwind. I have owned a few flying wings with middle mounted motors and these fly much better as the control surfaces always have air going over them.

Any thoughts on mid mounting a motor?

Cheers
Jamie
Old Apr 01, 2010, 07:00 PM
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that's in the ballpark, but I would recommend more power... my queen bee weighs over 6lb, so my 600W setup is still only 100w/lb. I also think I have an 11" prop...

having the motor mounted mid section probably would not help the stall characteristics a lot... I have never tried it myself though... it would make it a lot harder to have a folding prop though...

I usually climb and glide with mine... having a non folding prop would obviously have a fairly large impact on the glide of the wing...
Old Apr 02, 2010, 12:11 AM
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actually stall was probably the wrong term. The mid mount motor would help the "mushy" feel of the controls when flying down wind. At least that is what I found with the smaller models I have used.

600w is a fair bit. Especially as I plan on using 3S packs. So what sort of amps are you drawing 50 ?

I only pulled 14amps max with the easyglider, and that weighed 4lbs AUW.

I realise I'm not comparing apples to apples though

Cheers
Jamie
Old Apr 02, 2010, 09:30 AM
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yes.. 55-60A

you can watch the videos to see the data...

my personal rule is at least 100W/lb... below that most airplanes are not very
"sporty"
Old Jan 16, 2011, 08:39 AM
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...
Last edited by etman; Jan 23, 2011 at 08:55 PM. Reason: servo name
Old Jan 16, 2011, 08:42 AM
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you could probably get away with the smaller ones, but the weight of the servos relative to the weight of the plane is quite small.. the full sized servos also handle crashes much better.
Old Jan 16, 2011, 09:31 AM
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Thanks.
Old Jan 16, 2011, 11:47 AM
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"I want more air time!"
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Quote:
Originally Posted by downeym View Post
you could probably get away with the smaller ones, but the weight of the servos relative to the weight of the plane is quite small.. the full sized servos also handle crashes much better.
I often checked to see if you had any more new vids on vimeo. You drifted away on the FPV for awhile?

Working on a ground station very simular to yours.
Ken
Old Jan 17, 2011, 05:10 AM
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Hi mike,

Is this setup ok?

ZIPPY Flightmax 5000mAh 3S1P 15C
TURNIGY Plush 60amp Speed Controller
TR 35-48-C 800kv Brushless Outrunner
TURNIGY 3A UBEC w/ Noise Reduction
12" x 8" prop

I want endurance and good climb rate, rather than speed.
Last edited by etman; Jan 23, 2011 at 09:53 PM.
Old Jan 17, 2011, 09:40 AM
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its good that you dont want speed, because you wont get it with this thing!

despite all the carbon rods, its still not the stiffest wing in the world and with mine if you get over 40 or 50mph it want to flap a little... enough to unnerve me and want to slow down...

in my opinion, this thing wants to climb fast, shut off the throttle and glide at about 25mph.

I think the setup you chose should work fine. you want enough thrust to climb fast (I think that you should have about a 75% thrust to weight ratio), enough pitch speed to get to at least 50mph (you are about 60 with that calculation) and enough battery to last several climbs to 2 or 3k feet...

feel free to post pictures of your plane in this thread.. I would live to see them.
Old Jan 18, 2011, 02:20 AM
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Quote:
Originally Posted by downeym View Post
its good that you dont want speed, because you wont get it with this thing!

despite all the carbon rods, its still not the stiffest wing in the world and with mine if you get over 40 or 50mph it want to flap a little... enough to unnerve me and want to slow down...

in my opinion, this thing wants to climb fast, shut off the throttle and glide at about 25mph.

I think the setup you chose should work fine. you want enough thrust to climb fast (I think that you should have about a 75% thrust to weight ratio), enough pitch speed to get to at least 50mph (you are about 60 with that calculation) and enough battery to last several climbs to 2 or 3k feet...

feel free to post pictures of your plane in this thread.. I would live to see them.
Thanks man!


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