Conference vmszoo::rc

Hi Marc,

Great second installment on the European Cronicles!  I opted to go with seperate
servos(mounted in the wings) on the Pulsar I had(now belongs to Charlie Watt.) 
I used Futaba S133 and the worked great. It's not too difficult to set this up
even if the wing has been sheeted and the root rib attached. Let me know and I
can give you details/suggestions on how I installed the servos.

-Lamar

I dina have micro servos and not the funding to acquire them at this 
point in time. So I'm trying to implement per the specs!
(This cable stuff is a bitch but hey, I'll try anything at least once. For 
the ANTHEM (also on the bench) I'm going whole hog: The latest european 
computer radio and servos in the wings. Now that's serious money.)

At the moment, it looks like I'm going to have to create something that
allows me to slide the servo tray in place and lock it in from the front.

btw is the PULSAR fuse polyester or epoxy? I plan to fix everything in place
with FG and goo (either polyester or epoxy). I just want to make sure I use the
right stuff. Having used the polyester on the ANTHEM - i would prefer to use 
same  here ..)

This plane is the biggest thing I've built yet. The results are not the best but
they are a good testbed for the ANTHEM.

keep ya posted.

md

Boy, can I relate to not having the funding! Buying the servos for the Falcon
has blown the hobby budget for this year!!!!

The Pulsar fuse is made from epoxy resin. I've use the polyester resin once, and
won't use it again(if I can avoid it.) Man, does that stuff smell! While your
working on the Pulsar, you might want to add some reinforcment to the area just
behind the root TE faring. I've seen to Pulsar break at that area on hard 
landings. Good luck getting the Pulsar into the air! I hope to get my Falcon 
finished up this weekend. 

-Lamar

Well, I spent the weekend getting the servo trays in place.

Rudder and elevator adjustements went easy. Flaps and ailerons are an 
other matter. Never again this business with cables. For my money, mini-servos
in the wing with direct drive are the way to to go. Simpler and faster.
What you pay in  mini-servos you get back in simplicity and reliability.

Live and learn.

So - I'm going to spend the evening fiddling cables, etc.

tx for the pointer on the fuse weakness. 

If all goes well - next weekend is maiden flight. The week after that is F3J.

md 

Well, I went out to try the pulsar  last weekend.

The scene: France's firt F3J international contest. Got up at 5 to be on my 
way by 6 and arrive at the site by 7. This was to give 2 hours to adjust the 
ailerons. A real bitch of a job. To make a long story short: at 9:30, I'm in 
the 1st group  with a plane that has never flown,  unknown trim and a pilot 
that's been of the sticks for 2 years. The french shook their head a my US 
approach of tyring the plane. Hook up to the tow line and off we go. Veers 
to the right. and pop's off. 

Stabilize the monster. Start back. I got a little antsy and tryied to land to
quickly. I also moved a stick the wrong way and end up cartwheeling on landing.
...And broke the fuse clear off at the wing root. I wuz not impressed. The
landing was to that hard. Ans I was to see many worse one as the day went on.
SO back to the tent. CA the fuse back together an apply ALuminiun tae over the 
break. Good as new. Fiddle some more. (a long time). Enventually
get everyithing square. This time we hand tossed. Only to discover that
one of the aileron cables has slack in it and causing unpredicable behaviour.
And that the rudder cable run is bending inside the fuse. (source of veering 
to the right)

SO we retire with the conclusion that the PULSAR will only fly with wing servos.
This cable stuff is not a viable proposition. 

Bottom line: From waht I saw tere, The PULSAR is a good recreational glider.
It is not sturdy enough to deal with the wear and tear of a two day contest.
And its control mechanism as not up to par.

Tower Hobbies will be get a order soon.

md

Servos int he wings with short linkages is the tightest way to go. Pull the 
cable out of the fuselage and install a pull-pull system. It will be lighter 
and positive in both directions. Then you'll know what the plane is capable 
of.

    My Pulsar has pull - pull on the rudder - very light, tight and
    positive on control.  I have servos in the wings - only way to go.  You
    will NOT get away with cartwheeling any 100 inch glider without
    breaking the fuse!  
    	By the way, in this country it is not allowed to fly an untested
    plane in a contest.  You sign a waiver saying that you have flown the
    plane prior to the competition.  I strongly support this because it
    reduces the chance of  mishaps from happening when there are a large
    number of people around that could get hurt.
    
    Charlie
    

I saw 2 gliders cartwheel at the F3J contest last weekend. I also saw several
crash/land serverely. All sustained minor or no damage and reflew in the next 
round. NONE broke a fuse.

I crashed an F3B ship yesterday _ an I mean crashed. Nose in - real violent.
The CF wing keys broke. Some damage on a wing tip. The fuse suffered a 
minor crack behind the wing. Nothing that an evening's work can't fix.

The stuff here is built light AND tough. 

md

    Glad to see that you are back to your true form. :-)
    
    I wonder how long it will be before the "Europe~" guys move out here! :-)
    
    It's Monday and you needed it!.
    
    Regards,
    
    EVL-1

    Even if you try REAL hard, we won't give up that easy....