Spitfire Mk XIV 1/5 by fokkeRC
08-24-2014, 12:41 AM
#152
Some pretty good Griffon powered Spitfire and Seafire scale drawings state 2.5 degrees down thrust from fuselage datum - and tailplane at zero. But I also have a Spiteful general arrangement image that says 2 degrees down thrust. Same drawings show +2 degrees of wing incidence at root and -0.5 degrees at tip.
08-24-2014, 01:48 AM
#154
Your drawings look like they'd be from the original source of Spitfires and Seafires - so you are probably correct. I don't think my eyes would detect a 1/2 degree deviation in a finished model ... 
08-24-2014, 11:53 PM
#155
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Otherwise the elliptical wing has a tendency to tip stall or in the best case stall all at once
On the other hand if one builds this Spit at a low wing loading then the stall speed will be too low to matter
08-28-2014, 12:41 AM
#157
Thread Starter
Hi again Fafa
I have questions from other guys to , so I will change the first rib . This idea is to put bigger engines , so your engines with 22sm long you can put in the cowl
I will post pictures woth the result !
08-28-2014, 12:49 AM
#158
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hello again
that very kind of u
yes 222mm should be perfect u can find the drawing with exact dimension on the roto engine web site i will try to send them if i can not at home right now
thanks
best regards
fafa
that very kind of u
yes 222mm should be perfect u can find the drawing with exact dimension on the roto engine web site i will try to send them if i can not at home right now
thanks
best regards
fafa
08-28-2014, 05:26 AM
#159
Thread Starter
OK Fafa, I will make the distance 230mm , when I am ready I will write here
I am ready with the cowl , this is it :
I am ready with the cowl , this is it :
Last edited by fokke; 08-28-2014 at 05:37 AM.
09-02-2014, 06:57 PM
#166
Are you vacuum forming into the mold halves or making a new tool?
When I make car body tools or other parts I make the tool from aluminum filled epoxy cast into a mold from the master model. That handles the temps and cycles very well. How are you making your canopy tools?
When I make car body tools or other parts I make the tool from aluminum filled epoxy cast into a mold from the master model. That handles the temps and cycles very well. How are you making your canopy tools?
09-03-2014, 01:57 AM
#167
Thread Starter
HI
Yes the white details are positive molds for vacuum forming . I made them from polyester resin.
My idea is to make two types canopies, with epoxy frame and without frame
Yes the white details are positive molds for vacuum forming . I made them from polyester resin.
My idea is to make two types canopies, with epoxy frame and without frame
