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Here is a photo of a Sagitta that I just finished covering, the wing span was increased to 125 inches.

BMatthews

Absolutley gorgeous.

I don't see any spoilers though. This one's just for sport flying?

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Hadn't gotten around to make the cut outs in the covering yet. I've been flying another stretched wing 115" Sagitta locally in contests and I've have been having a ball. I really like the way the model design moves out when it "comes on step" when you need to do some ranging between thermals.

ilikeplanes

I had a 600 way back when. Very cool little glider.

FLYBOY

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Sweet! Used to love flying that plane! Awsome in the air.

JBecker

Very nice looking sailplane. Is the fuselage fiberglass?

LWThompson

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Very nice. Could you post a couple more photos?

morgoth

do anyone has the plan for the 62.219.157.34 that seen above?
thanks

ejett

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Plans are available from RC Modeler, PLAN pl-831 cat. 5 for $16.00.

Ed Jett

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The white Sagitta has 115" wing span and the trans red/white Sagitta has 125" wing span. Both have built up fuselages. The T-tail is a 2 meter R08

michpittsman

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Loved my RO-8! At 20 oz with the cg back (I had to keep pushing the nose down to keep it from stalling) it floated on rodent flatulence! Here's to you, Richard Odle, for a sweet little design. JIM LSF796

aeajr

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I just got a used Sagitta 600 that I repaired and flew for the first time last weekend. I will keep the idea of extending the wing for a future project.

Thanks!

Jeff Thompson

That's odd, a plane should sink in methane.

aeajr

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There is a lot more sulpher Dioxide, SO2, in rat pops than methane so the plane can fly. Ha Ha!

changed

Does anyone have a set of plans for the Sagitta? I'd like to build a sailplane for a change of pace. I used to enjoy flying the olympic II I had years ago.

aeajr

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You can get a Sagitta 600 short kit here for $35 or a 900 for about $45:

http://www.dchobby.com/short%20kit/sagitta600.html

changed

Thanks for the Link that's just what I'm looking for!

Barrycb

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Anybody out there had improvements to the Sagitta to make it stronger? Have heard of some wind failures on winch launches. Don't know if it was someone being overzealous or a weak structure. Fixing to start on a couple of kits and would like to know about improvements before finding out the hard way about weaknesses. I may have an extra Sagitta 900 kit if anyone might want it.

felodden

On my Sagitta 600 I wrapped the inner and outer areas of the wing joiner rod box with carbon tow, to stop it bursting if I got overly enthusiastic on a winch launch. It has had some fairly aggressive launches and the wings seem to bend quite a bit (when I see this it is time to put in a little down elevator), but no damage yet. I haven't bent the joiner rod either - yet, so maybe there is some way to go <G>. My Sagitta does not have spoilers.

I have had the fuselage break in two, just aft of the wing trailing edge where the fuselage necks down behind the hatch hinge. This happened on a reasonably hard hit on landing. Speaking to other club members it appears that this is a known area of vulnerability with the Sagittas. When repairing it I reinforced this area with carbon tow sandwiched between the original plywood fuselage side and an additional plywood piece, all glued in with epoxy. So far so good. If I was building again I would run carbon tow down the length of most of the fuselage to provide more strength.

My Sagitta flipped over in a ground loop on landing (actually it has had quite a few of these ground loops, particularly when it is windy) and as the rudder struck the ground it cracked the main vertical post inside the balanced rudder, so when I repaired it I modified the design to a conventional rudder layout with a straight hinge line that extends all the way to the top of the rudder. For strength, the fixed rudder stem is now spruce rather than the balsa that was originally inside the rudder. The balanced rudder layout is supposed to induce quite a bit of drag. What I found is that the new conventional rudder layout doesn't have the same authority and I had to increase my throws a little to compensate.

I also changed the shape of the rudder at the same time to make it more upright in shape (higher aspect ratio) rather than steeply raked as the plans originally called for. I don't think highly swept surfaces are called for at the speeds these sailplanes fly at. High sweep angles look fast, but I think the low aspect ratios hamper the performance.

I love flying the Sagitta 600 and I think it has better much better performance than the Spirit I started out with. I might have made an error with the shaping of the wing leading edge as it is too sharp. I should have rounded it off more to give a lower drag over a greater range of wing angles of attack, especially at higher speeds. But as it is the Sagitta flys fantastically at low speeds. At high speeds it really bleeds off energy very quickly and I think that this is primarily due to my leading edge shape as well as the 'floater' type E205 airfoil.

I am considering building a light weight version of the Sagitta. I think that by using micro servos and moving the servos forward (swap position with the receiver), using 270mah battery in lieu of 600mah, carbon wing joiner of 8mm diameter (maybe one bay longer too, to reduce stresses in the wing joiner box) and using carbon pins in the tail, I should be able to eliminate all the lead nose weight and the steel components resulting in a 4 - 5 oz (130g) reduction in overall weight. Should be good for the really light days, but still be strong enough for a decent winch launch.

Fred

AcintSpec

Another spot the airframe may be weakened is the fuselage, just before the tail feathers. I have the remains of a 600 that had been broken there a few times. (Too much sanding or too many hard landings or caught it in the screen door when leaving the house or ?????) Some have told me they used to use a light fiberglass from the TE back when they built theirs.

Just my 0.02.

R/Gene

forrest adams

did you increase the tail volume coeff to allow for this larger wing span?
i remember sagittas were a little pitchy anyway

rogerflies

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Questions:

Where in the wing did you add the extra bays? Inner panels, outer panels, or both?

Did you have to cut non-stock ribs to add extra bays to the tip panels?

Did you stretch the spoilers?

Nice job!!

Roger

wildlife2

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AllThumbs

Ahhhh
Sagitta. My favorite sailplane.
I have the remains of my 900 in my attic......that spar box is a weak point.
Mine failed on winch after two seasons of fun.
I did the reinforcing - but it still broke open.

Still the most beautiful all wood sailplane kit ever done.
And that Sagitta often just kept flying ...milking whatever low altitude lift I could scratch out. Onlookers with their Windsongs and Saturns were often amazed at the ability of this simple polyhedral ship.


I have scrounged up a 900 from ebay and would dearly love to get one flying again.
Alas......the club where I relocated to has no winch, it's RCPower and electric.

Someday.

I did the following mods on my original 900:
- thickened the flying stab
- RC car ball bearing in the flying stab connecting rod
- straight line rudder (took out the counter balanced fore part)
- moved spoiler one bay out on wing (not in line with elevator)
- FG fuse..never broke that skinny tail once, even after the crash


Does the longer wing span help...is it harder to turn in a thermal

flybaby101

nice glider , have you got any flying shots and did you go for the straight lined rudder

cheers dug[&:]

p.s thanks to fred im now hooked and building one..

and what exactly is carbon tow>\? so i can add it to mine if its not too pricey , where can i get it in aus


dug[&:]