Gold , imagine all the poor Balsa trees we went through learning this …
Freaky vs extreme … Yeah , guess you could say that eh !!! ( something not normally done by the sane ) hahahaha

“ Crack wing” …. pray tell , is this another forthcoming thread ?

It's been around for awhile ……………….. https://www.rcgroups.com/forums/show...EPP-Crack-Wing

Got some balsa beams from a shipyard in Connecticut for free way back when and though I struck gold. After carting them home over a thousand miles and started to saw them up I soon realized they were mostly for lining hulls and not build model airplanes.

Yes , we saw a rather large chunk of Balsa at the local fine lumber emporium . Although lighter than everything else it still was heaver than the Balsa we use … and it wasn’t even remotely cheap either ...

Re: “Crack Wing” … How did I miss that one … ?
Is that another one the Asians ripped you off for … ?

Originated here in the Czech Republic https://www.rc-factory.eu/ and sold in America by https://twistedhobbys.com/

Inthunk I git the motor wrong on my forgetting that it's running on 2s.. 1200 is to low. Fine for general flying and hasrriers but if you find yourself. Upright it really struggles to hover and looses aileron authority.

Even with th bigger rudder and silerons don't think there's fsast enough airflow. What bususlly happens is it fallson it's back

I have built a number of foamy PbF's over the years and figured that what works good in foam should be fun in wood. Blew up the plans by 167% to 30" wingspan and designed around a 40 size motor. Final weight will be around 5.5 to 6 pounds.

Motor - Cobra 3520/10
ESC - SkyPower 60
Prop - MAS 9x7x3
Battery - 5S-5000
Wing Area - 840 square inches
Wing Loading - approximately 16.5 oz/sq. ft.
WCL - approximately 6.8

Now just have to wait for winter to be over and the flying season to start.

I am going to the lighter side of things. Here's a CAD on Pizza Box Kite. All CF Frame with Ripstop Covering. Parts are 3D Printed and Assembly in progress..

Please keep up updated.

Here's the Frame Ready for Covering. Would be nice if i could get it colour like Spongebob (kids request). I was thinking to go cheap on Newspaper covering and strengthening with diluted paper glue (dope).

Update 1.
Frame Ready for Covering. Purple ripstop it is...

Update 2.
Fabric is glued using UHU glue to allow time for tension adjustments. I used to CA but, excellent skill is required.

Update. Ready to maiden flight.

Sure is a busy build.

Almost 20 years ago it all started .......................

http://mypage.yhti.net/~dmcdnld/pizzabox.htm

want to build this great plane for winter ,
pls just guide me what will the size of fuse and rudder ??

could not read well graph paper .

i have emax cf 2812 motor , is this motor good for this PBF ??

thanks


M.TARIQ

Originally Posted by TARIQ40

want to build this great plane for winter ,
pls just guide me what will the size of fuse and rudder ??

could not read well graph paper .

i have emax cf 2812 motor , is this motor good for this PBF ??

thanks


M.TARIQ

Do you have a printer or access to a printer ? If so , here are the plans you can print :
https://www.rcgroups.com/forums/showpost.php?p=11339731

Your motor should be OK for a standard size ( 18 x18 ) PBF , or make it slightly larger .... 20 x 20 , 22 x22 .