Just a note on sink rates in 419PL:
>From my 1000 miles in the MG (copies in Europa Flyer or my website www.cust
omflightcreations.com accessories and tips look under techniques).
Sink Rates observed: Engine off=2C prop feathered from one test flight:
90 Kts 400fpm
=0A
80Kts 300fpm
=0A
70 Kts 300 fpm
=0A
65 Kts 250 fpm
=0A
55 Kts 350 fpm trimmed nearly full aft.
Since Mod 78 makes the spar the same height from root spar to the tip of th
e spar=2C it should not be a major problem normally. Careful construction
only thickens the spar about 1/16 of an inch. I am sorry Dave=2C that your
tank was put in too low. If the interior is not hard to remove=2C conside
r moving the tank up. Yes its a mess but in a week it could be done. I kn
ow it is easy for me to say=2C as one mistake and the cost of a new tank ge
ts figured in makes the job a real knuckle biter.
I do not do tech support for Europa any longer=2C but if you come to Sun 'n
Fun (Site 33 this year) you can look over what we have done to ensure the
Mod 78 spar clears controls=2C includes a spar cup/support for rigging ease
=2C and I'll show how to remove the crosslink bolts and add countersunk scr
ews which preserves all the structure. If you can't make the show=2C then
email me off line and I'll send you what I have.
I supplied Europa with drawings on modifying the flap push rod to clear the
spars as that is a real problem on the mono. Trigear is a piece of cake.
Keep the spars thin and it will work.
The extra 100 pounds the glider wing adds can make the plane a single seat
only aircraft unless you built light. It does move right along if you go r
eally high=2C but below 10=2C000 MSL it is basically an economical 120 knot
bird. You can really stretch the range with the long wings.
Once the health becomes a concern=2C it is also quite nice to fly as a glid
er with no medical.
Regards=2C
Bud Yerly
> From: deford.dave@gmail.com
> To: europa-list@matronics.com
> Subject: RE: Europa-List: Re: Motorglider wings
> Date: Sun=2C 9 Feb 2014 06:03:17 -0800
>
>
> Ron=2C
>
> We did switch back and forth between short and long wings=2C accumulating
90
> hours on the long wings=2C before we heard about the Mod 78 structural
> problems and quit using them.
>
> The long wings would not fit into the fuselage of N135TD with the taller
> spar tangs of Mod 78. Building according to the current instructions 15
> years ago (modified shortly thereafter)=2C our tank is set low enough tha
t the
> "shelf" at the top front interfered with the short wing spar tangs. I
> heated the tank locally to deform it enough to pass the starboard tang=2C
and
> then had to do it again for the slightly taller long wing spars. We woul
d
> have to cut open the cockpit module and replace the tank in order to gain
> enough clearance for the modified spars=2C which we are not prepared to d
o.
> Since the long wings are of no use to us=2C we would be happy to sell the
m at
> just about any price to someone who could use them (after applying Mod 78
=2C
> of course).
>
> Dave DeFord
> N135TD
>
> > It sounds like you switch back and forth between short and long wings
> > on your XS Mono.
> >
> > Did you do Mod 78? If so how did you get your flap push-rod to clear
> > post mod 78 spars=2C airbrake cable and pitch cross tube?
> >
> > Ron Parigoris
>
>
>
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