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Old Mar 11, 2011, 03:44 PM
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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: https://www.rcgroups.com/forums/show....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
Last edited by Tom Hunt; Mar 11, 2011 at 04:05 PM.
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Old Mar 11, 2011, 04:00 PM
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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.
Last edited by Tom Hunt; Mar 11, 2011 at 05:19 PM.
Old Mar 11, 2011, 04:13 PM
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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.
Old Mar 11, 2011, 05:38 PM
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Renegade Fun Forever!!
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Looking great so far!
Old Mar 11, 2011, 05:47 PM
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Subscribed.

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

Regards
Alan
Old Mar 11, 2011, 06:24 PM
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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
Old Mar 11, 2011, 06:54 PM
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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
Old Mar 11, 2011, 08:23 PM
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Good job so far
Old Mar 12, 2011, 09:01 AM
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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
Old Mar 12, 2011, 10:02 AM
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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
Old Mar 12, 2011, 11:17 AM
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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
Old Mar 13, 2011, 10:10 AM
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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.
Old Mar 13, 2011, 10:34 AM
W. X. Davis is online now
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Cool Stuff Tom.

Woody
Old Mar 13, 2011, 12:24 PM
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Tom is that straight up lightweight Spackle.... or wood putty?


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