Fokker Eindecker E111

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26 Nov 2024 22:07 #16 by old ugly
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here is what went on today. time for a shot of rum.
 

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26 Nov 2024 22:19 #17 by old ugly
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i think i am going to build the wing flat like the real planes. no dihedral.
you think it would fly without? (assuming every thing else falls into place)
OU
Thanks: Klipkopwildlife

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27 Nov 2024 07:20 #18 by Eric
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Free-flight - no dihedral = no lateral stability.
The model might fly, but the slightest disturbance would cause it to fall into a spiral dive.

if you are calm and collected when all about you are going berserk - you've missed something important!

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27 Nov 2024 12:19 #19 by Quorneng
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Agreed that the full size had no dihedral but I note the plan shows the wing rigged with a significant amount.  

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27 Nov 2024 16:24 #20 by old ugly
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the plan shows 5/8 " dihedral at the end of each 8" wing.
so now i have to decide if I am going to fly it or hang it from the ceiling.
a major decision to make.
thanks guys
OU '
Thanks: Quorneng

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28 Nov 2024 02:14 #21 by old ugly
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it is not going to be a flier. its going to be static.
-no dihedral.
-i scaled down the stabilizer and rudder to be more accurate to the scale.
-i may ad the extra ribs to the wing but not sure about that yet.
OU

 
Thanks: Eric, Klipkopwildlife, Flytilbroke, Quorneng, jon.in.swansea

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28 Nov 2024 07:13 #22 by Klipkopwildlife
Replied by Klipkopwildlife on topic Fokker Eindecker E111
Love your work OG, not an option for me, Mary isn't very careful when dusting.

Do it now, you may never get another chance
Thanks: old ugly

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28 Nov 2024 10:11 #23 by Eric
Replied by Eric on topic Fokker Eindecker E111
OU, if you are making it a static - scale - model, you may as well fit all the ribs and stringers, as far as is possible - or in days/years to come, you will be looking at it, and thinking "I should have - - - !"

if you are calm and collected when all about you are going berserk - you've missed something important!
Thanks: Klipkopwildlife, old ugly

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28 Nov 2024 10:12 #24 by Quorneng
Replied by Quorneng on topic Fokker Eindecker E111
Very nice build OG.
It is amazing how small the scale tail plane is.
I also noticed in the model the main spar runs right through where the pilot sat but then realised that in full size there would be no spar across the fuselage as all the flying loads were carried by the rigging. In fact it had to be as the rigging could be altered by stick movement to create the wing warping for roll control. 

If you think about it wing warping creates "wash in" rather than "wash out" so promoting wing stalls starting from the tip (bad!) and coupled with zero dihedral it is not surprising that rapid maneuvering of the Eindecker was considered dangerous. 
Thanks: Klipkopwildlife, jon.in.swansea, old ugly

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28 Nov 2024 10:26 #25 by Eric
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That - added to the gyroscopic effects of the big heavy rotary engine - made for very 'interesting' handling!
Quote from wiki -
All the E.I to E.IV Eindeckers used a gravity fuel tank which had to be constantly filled by hand-pumping from the main fuel tank, which, starting with the Fokker E.II , was mounted behind the pilot; this had to be done up to eight times an hour. Both the rudder and elevator were aerodynamically balanced; there were no fixed tail surfaces. This combination rendered the Eindecker very responsive to pitch and yaw . For an inexperienced pilot, the extreme sensitivity of the elevators made level flight difficult; German ace Leutnant Kurt Wintgens , who along with Leutnant Parschau was the primary Fliegertruppe pilot responsible for bringing the first armed Fokker monoplanes into active service during the spring and summer of 1915, once stated "lightning is a straight line compared with the barogram of the first solo". However roll response was poor.

if you are calm and collected when all about you are going berserk - you've missed something important!
Thanks: Klipkopwildlife, old ugly

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22 Dec 2024 16:05 #26 by old ugly
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this picture is my attempt to make wing to be closer to the correct scale.  not really correct but closer. i need more practice. i think the skin will hide the goof ups. 
OU 
 
Thanks: Eric, Klipkopwildlife, Flytilbroke, Quorneng, jon.in.swansea

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02 Jan 2025 02:23 #27 by old ugly
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finished
i scaled the tail and stab but the fuselage would have to be scaled as well to make it look more accurate. 
all in all it turned out pretty good. every one built they seam to be getting better.
OU


 
Thanks: Eric, Klipkopwildlife, Flytilbroke, Quorneng, THE BLACKBIRD

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02 Jan 2025 21:15 #28 by old ugly
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that german pilot was flown all the way here GB , vintage model company.
he is a big guy for that plane.
Thanks: Klipkopwildlife, Quorneng

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