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Old Dec 19, 2004, 08:34 PM
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AirX and Wayno-san,
Thanks for the encouragement. I've been watching the nano thread with great interest! Lots of good ideas and tips there.

P.Richards,
Could you please elaborate a bit more about the pitch down from root to tip? Could this be responsible for the side to side rolls?
I'm currently using full flying horizontal stabs, with about an inch of throw for pitch.

Thanks,
Mr. B
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Old Dec 19, 2004, 08:59 PM
EDF Jet Jam 2015 , May 28-31
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St. Louis Intl, Missouri, United States
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Congrats Mr. B and welcome to EDF.

The side to side roll/banking is a sort of stall trait. My F-35 does it too, I use it too let me know that I'm about to stall, i.e. don't give it any more 'up' input.

Enjoy
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Old Dec 20, 2004, 09:33 AM
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Quote:
Originally Posted by Kevin Cox
Congrats Mr. B and welcome to EDF.

The side to side roll/banking is a sort of stall trait. My F-35 does it too, I use it too let me know that I'm about to stall, i.e. don't give it any more 'up' input.

Enjoy
Thanks for the welcome Kevin!
Your projects have been a great source of inspiration to me.

Also thanks for the tip on the side to side rolling. It was the first time I had experienced anything like this.

Mr. B
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Old Dec 20, 2004, 02:18 PM
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Congrats Mr B! Now you can start getting aquainted with your new creation. Looking forward to seeing it in the air!

Quote:
Originally Posted by Mr. Boogie
T ... I hate maidens, and I love maidens!

Boogie
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Old Dec 21, 2004, 03:10 PM
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Congrats on the maiden glad everthing went well for you!!
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Old Dec 21, 2004, 06:24 PM
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I got another flight in today, 30 degree weather makes for some interesting flying.

I moved the cg forward about 1/8 of an inch and she still flies slightly nose up at full throttle. I did not need any up/down trim and speed seemed a little faster. There was a slight breeze so this may be responsible for climb under power.

Tried some WOT rolls and almost plowed her in, so I reduced the roll throws from 1 inch to 3/4 inch. I don't quite have a 1:1 T/W ratio but loops are nice, big and round. Threw in a few split esses (sp) the wings did not flex.

Flew for 8 minutes and then I found myself losing concentration, so I brought her in. 3 passes later I had a nice sliding touchdown in the grass, still trying to adjust to the glide .

434mah put back into the battery on a recharge.

I hope to have plans up shortly for anyone interested in having a go.

Mr. Boogie
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Old Dec 21, 2004, 06:34 PM
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Hi Mr. Boogie

Nice plane you have there, congratulations!

You are using a microfan and a astro motor (9,5oz of thrust, as I read before), did you measure power consumption and maximum rpm?

I concluded today my microfan/cdr setup but I'm not satisfied with maximum thrust obtained, only 169g without lip at 10A.

what you think about this numbers?

TIA

Jorge
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Old Dec 21, 2004, 06:51 PM
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Mr Boogies F-35 PDF Plans

I've Hosted Mr. Boogies F-35 Plans for your downloading and building enjoyment
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Old Dec 21, 2004, 07:14 PM
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Quote:
Originally Posted by jmralves
Hi Mr. Boogie

Nice plane you have there, congratulations!

You are using a microfan and a astro motor (9,5oz of thrust, as I read before), did you measure power consumption and maximum rpm?

I concluded today my microfan/cdr setup but I'm not satisfied with maximum thrust obtained, only 169g without lip at 10A.

what you think about this numbers?

TIA

Jorge
Thanks Jorge!

I am unable to measure rpm, but I did measure amp draw. I get 9.6A and 9.5oz (269g) of thrust at full throttle using a 11.1V 3 cell Lipo battery.

169g at 10A sounds a bit anemic (but I am no EDF expert).
What battery are you using and do you know the voltage your system draws? Also can you provide a little more info about your cdr motor?

You should also check the nano thread, I've noticed a few cdr's being used there.

Mr. B
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Old Dec 21, 2004, 07:22 PM
EDF rules... :)
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Mr. B and JMRalves,

The amps will drop and the thrust will go up with a lip of just about any kind, when the airhist the mouth of the fan without a lip it is starving the fan at high throttle because the air cannot curve arround the thin(1mm) lip of the shroud, it just wants to continue to flow past therefor starving the rotor for airflow and running the amp draw up. My Microfan installed in the S-54 was starving the a little bit less than his due ot the ducting and the external lips on each side to help airflow at zero airspeed. With you lip on it it is very near your experience of 9oz and 11amps (running a Himax 2015-5400 on 3s-10.8 volts) and 120 amps. Sweet... it is now going into an F-18E that I drew up. Almost 1-1 thrust/weight.

Eric B.

BTW I will be building one of the F-35's from your plan...
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Old Dec 21, 2004, 07:25 PM
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Portugal
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Hi again,

numbers:

169g thrust (to be confirmed tomorrow), 10.37A, 9.51V, 37300RPM, 3s2P 1200mA ETec 1stg gen

cdr 20mm, 8T 0,6mm Wye, 12 4x5x1 magnets 6poles (NNSSNNSS...).

I'm one of the people who use cdrom and EDF in nano thread

trade GWS EDF40 for microfan to improve thrust, in fact, thrust improve but not enough

Jorge

PS already have the plans, thanks!
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Old Dec 21, 2004, 07:26 PM
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Hi Eric!
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Old Dec 21, 2004, 07:28 PM
EDF rules... :)
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Hi Jorge,

Unfortunately the standard motors are working best in this fan an in the EDF 40, The Himax runs about $50us here in the States, you might think of going conventional for this.

Eric B.

Quote:
Originally Posted by jmralves
Hi again,

numbers:

169g thrust (to be confirmed tomorrow), 10.37A, 9.51V, 37300RPM, 3s2P 1200mA ETec 1stg gen

cdr 20mm, 8T 0,6mm Wye, 12 4x5x1 magnets 6poles (NNSSNNSS...).

I'm one of the people who use cdrom and EDF in nano thread

trade GWS EDF40 for microfan to improve thrust, in fact, thrust improve but not enough

Jorge

PS already have the plans, thanks!
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Old Dec 21, 2004, 07:32 PM
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Portugal
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Will install the lip tomorrow, if I don't get 250g, I quit! start a new hobby!

just joking


Eric did you measure RPM in your microfan with you r setup?

Jorge
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Last edited by jalves; Dec 21, 2004 at 07:43 PM.
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Old Dec 21, 2004, 07:44 PM
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Quote:
Originally Posted by RCParkflyer
I've Hosted Mr. Boogies F-35 Plans for your downloading and building enjoyment
Thanks for the help in getting the plans up RC!

Mr. B
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