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Phaeton 90 Wing Tips

Old 08-26-2003, 01:18 PM
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TopRCDawg
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Default Phaeton 90 Wing Tips

I do not like the wing tips for my Phaeton 90 - I hate shaping and sanding those blocks. Can the wing tips be left off completely, or should I try to build wing tips of comparable shape to the original ones (using sheet pieces instead)?

Thanks so much for your help.

TopRCDawg
Old 08-26-2003, 02:36 PM
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Edwin
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Default Phaeton 90 Wing Tips

Are you talking about solid balsa blocks on the wing tip? Mine isnt setup that way. The leading and trailing edges are blocked and the center is open structure. I suppose you could do flat wing tips as is done on the ultimate, but (in my opinion) the P90 wouldnt look right. I have heard, (just repeating what I have read in books), that flat wing tips give a faster roll rate. Cant vouch for that personally though. Sanding can go real fast if you use those aluminum sanding bars with aluminum oxide 80 grit stick on sand paper. I can do a one piece hollowed block in about 20 min. Blocked LE and TE on the tips should only take 5 min. or so. But in the end, do what you want. It dont matter what anybody else thinks.

FYI- Did the maiden flight on mine last sat. Very Very Good!

Edwin
Old 08-26-2003, 04:57 PM
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Default Clarifications

Yes, the LE and TE has blocks on top and bottom - that is what I am talking about. I was just wondering if they are just for looks on the wings or do they perform a vital function? I have covered a flat end wing (SIG SE) and was wondering how hard a shaped wing tip would really be - or if it can be omitted or redesigned.

Thanks, Edwin. Where did you put your servos and how do you access them? I am thinking of putting the aileron servos in the wing ribs (beefed up of course) and a pull-pull on the rudder. I am powering with a TT Pro 120.

I love building!
Old 08-26-2003, 05:07 PM
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Edwin
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Default Phaeton 90 Wing Tips

No vital function that I know of.
For servos, thats pretty much what I did. Aileron servos in the wing, elevator, rudder, and throttle in the lower wing saddle area. Pull pull for the rudder with a tiller. I used 4-40 rod and fittings. Also ailerons on both wings with trailing edge couplers. On low rates it has a pretty decent roll. I may tone down the high rates a bit due to the crispness of the roll and the loop. This is gonna be fun!!
Edwin
Old 08-27-2003, 07:00 PM
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DBCherry
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Default Phaeton 90 Wing Tips

I've always liked the look of the Phaetons. Would a YS .91 AC be sufficient power for the 90?
Dennis-
Old 08-27-2003, 11:24 PM
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hoops
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Default Phaeton 90 Wing Tips

I suspect that the tip blocks do add a bit of strength to most tip installations. However, it seems to me the idea is usually just to keep the tip covering from sagging and making a divot past the last rib. The filler provides a smooth transition from the last rib and wing sheeting (a vertical plane, sts) to the tip plate (which is a horizontal plane). Of course it's always up to the builder to decide what he or she likes best. I agree about the aethetics of this particular plane. But having said that, there have been several kits that I deleted the tips and went with the flat end. But these have all been mono-wing planes, not a bipe.
Old 08-28-2003, 12:15 PM
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Edwin
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Default Phaeton 90 Wing Tips

Correct me if I'm wrong, but doesnt the DP Ultimate have flat tips? There is one at our field, but I've only seen 3 or 4 times. Seems like I recall flat wing tips on it. Either way, thats the only bipe I'm aware of with flat tips.
Edwin

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