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- Path: sparky!uunet!usc!wupost!waikato.ac.nz!canterbury.ac.nz!betelgeux!kaiser
- Newsgroups: rec.models.rc
- Subject: Spirit's and Re: First plane (sailplane) advice?
- Message-ID: <C0oEIM.B4@cantua.canterbury.ac.nz>
- From: kaiser@elec.canterbury.ac.nz (Chris Kaiser)
- Date: Mon, 11 Jan 1993 06:11:09 GMT
- References: <73179@cup.portal.com> <1iq1gj$4qu@agate.berkeley.edu>
- Organization: Electrical Engineering, University of Canterbury, New Zealand
- Nntp-Posting-Host: betelgeux.canterbury.ac.nz
- Lines: 82
-
- In article <1iq1gj$4qu@agate.berkeley.edu>, hartzell@cs.Berkeley.EDU (George Hartzell) writes:
- >
- > I'm currently building my first plane, a 2 meter sailplane. I started
- > with a Gnome that I bought from Northeast Sailplanes, but got
- > frustrated (8 pages of instructions, no diagrams or pictures, not the
- > best first timers plane) and bought a Great Planes Spirit. I'm much
- > happier, it has an _excellent_ instruction manual and the parts are
- > easy to work with. They have a larger version, the Spirit 100, which
- > got rave reviews in one of the magazines recently. It's a lot more
- > expensive though ($80 vs. $35) and seemed excessive for something I'm
- > likely to turn into matchsticks. Maybe my next one though.
-
- The Spirit's are nice planes to build (and fly), but the wing joiner
- is a weak point. I think the latest kits now have an aluminium
- lamination in the wing joiner assembly rather than all plywood - this
- really is an essential modification. If you intend to winch launch
- the Spirit a stronger wing joiner-box assembly is also a good idea,
- but not necessary as long as you take care and are gentle on the
- launch. As for the Spirit 100 - apparently the wing is weak just
- outside the wing joiner-box and benefits from some extra ply webbing.
-
- > Another plane to consider is the Airtronics Olympic 650 (though it's
- > also a 2 meter plane). It got some good reviews, and is the example
- > plane in the book "Sailplane and Soaring Manual" by Al Doig, from R/C
- > Modeler Magazine. The book has great pictures and instructions (about
- > building, testing, and flying [theory and practice]), if you ordered
- > the plans from RCM you could easily scratch build one from the book.
- > That plus the kit instructions (which are also supposed to be good)
- > should make an excellent first plane.
- >
- > One nice thing about the Gnome and the Spirit are that they have a
- > spoiler option, which many people suggest is worth having (it seems
- > reasonable to me...). I don't know if the Oly does or not.
-
- I agree that the spoiler option is worth having - it makes spot
- landings much easier. I also slope soar mine in light to medium
- winds and the spoilers make it much easier to get down in tight
- landing areas. However for a beginner it's another control to
- worry about (and spoilers are useful rather than necessary).
-
- > Of course, I don't know anything about flying these things yet, so
- > both of these planes might be totally inappropriate (especially if
- > you're set on a bigger plane). I decided that I'd be happier
- > successfully building something, even it if wasn't the hottest plane
- > in the air. That'll come later... People seem to thing that the
- > Spirit is a fine plane though.
-
- The Spirit is a beautiful plane to fly - it's stable and easy to
- handle, but also very manouverable. I've slope-raced mine with
- about 1/2 Kg (over 1 pound) of lead ballast - I was almost as
- fast as the aileron models in a straight line and quicker round
- the turns.
-
- There are several modified Spirits flying in our club. One guy
- learnt on one and gave it a **very** hard time - it's still flys
- very nicely although it's a lot heavier than it started out...
- mods include fully sheeted leading edges (top & bottom) out to
- the tip with wire on the very front (survives mid-airs very
- well!) and glass reinforcing in the fuse (the fuse is probably
- nearly all cyano and glass now...).
-
- Another guy has one with severe strengthening in the wings - he
- zoom launches it off winches (F3B style) and has done a 40sec
- F3B speed run with it... not competitive but pretty quick for
- a floater!
-
- > > I also need recommendations on books about sailplanes (building
- > >and flying) and radios. (As my kids will eventually push me into
- > >power I thought I'd go with a good 4ch setup.)
-
- Even if you stick with gliders you may end up using 4 (or more)
- channels - rudder, elevator, ailerons and flaps. With a model
- like this it's useful to be able to mix aileron to rudder
- channels, and also flap to elevator - something to consider
- when looking for a radio.
-
- Chris Kaiser
-
- Postgrad, Elec. Eng. Dept.
- University of Canterbury
- Christchurch, NEW ZEALAND
-
-