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Old Mar 11, 2011, 03:44 PM
got any foam to bash?
Tom Hunt's Avatar
Lake Grove,LI, NY
Joined Aug 2000
5,469 Posts
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Ugly Duckling to Beautiful beast BASH FMS/Airfield BF-109E

Ok Guys

I promissed, now it is time to deliver. I am bashing that awful looking FMS/Airfield BF-109 (now discontinued I am told, though some may still be had through Nitroplanes) into a better looking "emil".
Reference: http://www.rcgroups.com/forums/showthread.php?t=1222693

Things I will do (but not in any particular order):

Fuselage areas:
new cowl
new exhaust stacks
modified oil cooler
new fuselage gun troughs
new canopy
modified tails (rudder is WAY wrong)
add tail struts
new tailwheel
scale spinner
near-scale prop

Wing areas:
scale dihedral
scale aileron and flaps (external hinged)
new radiators
scale LG position
scale cannons

Motor: Turnigy 5055-400
battery: Eflite 30C 4s-3200
ESC: propably Castle ICE 50 lite
Prop: approx 15 x 8 3 Blade (my own)
retracts: PZ 514's
Struts: VQ straight leg.

Things I am not going to do:

Modify fuselage width (it is WAY too wide)
go through a lot of trouble hiding the foam (like I did on my FMS P-51D to B conversion)
Thin the overly thick tails.

Tom
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Last edited by Tom Hunt; Mar 11, 2011 at 04:05 PM.
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Old Mar 11, 2011, 04:00 PM
got any foam to bash?
Tom Hunt's Avatar
Lake Grove,LI, NY
Joined Aug 2000
5,469 Posts
I realized pretty quickly that the fusleage is about 15% too wide. A scale canopy was not going to work. I made a new plug wider, but it still required quite a bit of sanding of the fuselage to match.
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Last edited by Tom Hunt; Mar 11, 2011 at 05:19 PM.
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Old Mar 11, 2011, 04:13 PM
got any foam to bash?
Tom Hunt's Avatar
Lake Grove,LI, NY
Joined Aug 2000
5,469 Posts
Wing is wierd!
I determined that the wing is a NACA 2415 at the root (side of fusleage really) and a 2416 at the tip. There is no twist.

I decided to make more scale ailerons and flaps so I cut them off. The blue foam templates you see in the pictures were made to determine the airfoil used and if there was any twist so I could reverse engineer my new control devices onto the existing wing.

The bottom (and top) of the template are parallel to the local chordline.
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Old Mar 11, 2011, 05:38 PM
Renegade Fun Forever!!
rvincent's Avatar
Fontana, California, United States
Joined Jul 2004
27,653 Posts
Looking great so far!
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Old Mar 11, 2011, 05:47 PM
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GiusedtoBe's Avatar
Tennessee
Joined Apr 2009
5,628 Posts
Subscribed.

How are you going to fabricate a new spinner? Balsa?

Regards
Alan
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Old Mar 11, 2011, 06:24 PM
got any foam to bash?
Tom Hunt's Avatar
Lake Grove,LI, NY
Joined Aug 2000
5,469 Posts
Quote:
Originally Posted by GiusedtoBe View Post
Subscribed.

How are you going to fabricate a new spinner? Balsa?

Regards
Alan
Hi Alan

nope... same way I do all my other plastic parts......... STR! (Star Trek Replicator).

Tom
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Old Mar 11, 2011, 06:54 PM
Hooper, full throttle!
Tommy D's Avatar
USA, NY, East Islip
Joined Feb 2004
11,066 Posts
Hi Tom

Not 100% sure Ill make the meeting Tues. Worst case Ill drop the decals off with Kevin and he in turn can bring them into the meeting.

Great thread. Looking forward to seeing how you fix the dihedral.

Tommy
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Old Mar 11, 2011, 08:23 PM
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kahloq's Avatar
Fort Collins, Colorado, USA
Joined Dec 2005
7,821 Posts
Good job so far
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Old Mar 12, 2011, 09:01 AM
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GiusedtoBe's Avatar
Tennessee
Joined Apr 2009
5,628 Posts
Quote:
Originally Posted by Tom Hunt View Post
Hi Alan

nope... same way I do all my other plastic parts......... STR! (Star Trek Replicator).

Tom
So..............which vendor sells these STR's? This could really upgrade my modding skills.

I'll watch and learn
Alan
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Old Mar 12, 2011, 10:02 AM
got any foam to bash?
Tom Hunt's Avatar
Lake Grove,LI, NY
Joined Aug 2000
5,469 Posts
Quote:
Originally Posted by GiusedtoBe View Post
So..............which vendor sells these STR's? This could really upgrade my modding skills.

I'll watch and learn
Alan
Well, the one I have access to was $500K in 1999$. You can get less capable machines for around $5K.

Google Stereolithography or rapid prototyping

Tom
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Old Mar 12, 2011, 11:17 AM
got any foam to bash?
Tom Hunt's Avatar
Lake Grove,LI, NY
Joined Aug 2000
5,469 Posts
Trying to make the model "closer" to the FS (Full scale.... egad man not "real" my model is just as real) I had to add 1/2" to the rear of the fin. I just used 1/2" Dow Blue foam here and PU glue. I also had to redo the LE of the fin to make it closer to the right sweep. I did sand it a bit in thickness, but it really is WAY too thick.

Tom
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Old Mar 13, 2011, 10:10 AM
got any foam to bash?
Tom Hunt's Avatar
Lake Grove,LI, NY
Joined Aug 2000
5,469 Posts
More nose details

What ww2 aircraft do you know that has more happening from the nose to the LE of the wing than any other part of the aircraft than the 109? The 109Emil is loaded full of bumps, holes, vents, blisters in the first 6" of this model than any other I know of.

I added the new exhaust stacks and began work on some of those blisters on the underside of the cowl.

One blister was made from a section of plastic spoon, the other shaped from balsa.

The area is now "mudded" with elmers wood putty and I will have to wait for it to dry before I continue on. I move back over to the wing for a while.
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Old Mar 13, 2011, 10:34 AM
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W. X. Davis's Avatar
United States, OH, Reynoldsburg
Joined May 2004
1,947 Posts
Cool Stuff Tom.

Woody
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Old Mar 13, 2011, 12:24 PM
Hooper, full throttle!
Tommy D's Avatar
USA, NY, East Islip
Joined Feb 2004
11,066 Posts
Tom is that straight up lightweight Spackle.... or wood putty?
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