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The Wonky Webbit, The Story So Far

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Geoff Smith 113/06/2011 22:49:16
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Well this as far as I have got. Another step forward, I'm now waiting for the inevitable two steps back to appear.





Tail assembly not yet glued so that's why it's wonky.

Geoff

Wonky Webbit Builder No 20

Biggles' Elder Brother - Moderator13/06/2011 23:26:54
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You're a dark horse Mr Smith, all this talk of wonky WebBits - that's looking pretty good that Geoff.
 
BEB
Pete B - Moderator13/06/2011 23:43:00
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Nowt wrong as I can see there, Geoff....
 
Pete
Tom Wright 213/06/2011 23:53:32
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Wizard Webitt would be a better description Geoff ,nice one .
 
Tom.
Ian Jones14/06/2011 01:21:38
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Hey Geoff, you will okay if this grey weather continues - those are good high vis colours - like it.

Ian
Geoff Smith 114/06/2011 08:08:35
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Many thanks for the comments my friends, looks good on here but may not stand up to close scrutiny. I had a right pigs ear of a game with those wing tips.lol. BTW the reason I haven't sheeted the fuselage yet is because I using push rods for the control system. I have never used this method before as I have always used snakes but on the Webbit I felt they exerted too much pressure. Now the question. Do I need to put a support in the fuselage for the push rods or will they manage under their own steam? Cheers my friends
 
Geoff
 
Nearly Finished Webbit Builder No 20

Edited By Geoff Smith 1 on 14/06/2011 08:10:26

Doug Ireland14/06/2011 09:12:51
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I like the covering job on the wings Geoff, I'm going to use the same colour and maybe "dayglo" orange for the wingtips.
 
As for the pushrods, I was in two minds whether to use them but as I already had a spare set of snakes handy I used them instead. For such a small model I'd use 1/4" hardwood dowel (I bought a 10' length from a builders for a couple of quid) with the 2mm rods tied and glued in the normal manner to the ends. They won't need supporting in the fuselage.
 
Webbiteer No. 43
Biggles' Elder Brother - Moderator14/06/2011 09:55:51
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I agree with Doug - they wont need supporting Geoff.
 
I think everyone had fun and games with those wing tips! I know I did. The "flat bit at the end conbined with the rather sharp double curvatuture at the front prsented something of a challenge.
 
BEB
Geoff Smith 115/06/2011 08:26:00
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Why is mine longer than yours? Now that I've got your attention let me elucidate. When fitted my rudder fin extends well below the bottom of the rear fuselage. As I have not fitted wheels the first landing is going to see that ripped off. Have I made a mistake somewhere or should I trim to fit?
Cheers all,
Geoff
 
Elongated Webbit Builder No 20

Edited By Geoff Smith 1 on 15/06/2011 08:28:04

Richard Wood15/06/2011 08:53:23
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These things often happen Geoff.
I would trim the rudder to be flush with the fuse btm or alternatively fit
a small tail skid made from either thin piano wire or ply, let in to the sheet.
Check the structure is strong enough first - add some thin ply reinforcement
if poss.
Nice job BTW.
 
 
Pete B - Moderator15/06/2011 08:55:07
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I'd say you could either trim it off or add a strake below the fus to protect it - just a triangle of 1/8" hard balsa, Geoff.
 
Pete
Geoff Smith 115/06/2011 09:31:16
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Thanks for this gentlemen. The tail skid seems to be the answer as I didn't want to reduce the fin area. I will most probably fit an undercarriage to it in the near future should the test flights prove ok. Cheers my friends
 
Geoff
 
Sorted Webbit Builder No 20
Geoff Smith 118/06/2011 23:49:22
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The story so far. The control rods are in and working, everything that goes up and down and side to side are working, servo's centred and flying surfaces levelled. Now for the good bit. I tested the CoG and it is gonna need about 6.5 oz of church roof, this will give it a slight nose heavy attitude (maybe, 'cos I ain't finished the fuselage sheeting yet) that's for tomorrow. Is 6.5 oz excessive? Also, where the heck do you put all this lead in the Webbit? it is going to be pretty tight stacked around the motor. Before you ask, everything that needs to be is right up against the firewall, I can't move anything else up. Cheers my friends.
Geoff
 
Heavy weight Webbit builder (both of us)
 

Edited By Geoff Smith 1 on 18/06/2011 23:50:17

Geoff Smith 121/06/2011 17:24:24
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Well here it is. Putting the motor on the front has reduced the ballast requirement by half. Still some cosmetic to do. BTW Solatex does not stick to liteply I had to strip of the sides and rub in some Rapid Bond PVA and let it dry, Not perfect but it will have to do as I have no more time to spend on it, ,maybe half an hour on Thursday afternoon. Cheers my friends Just spotted the wings aren't on straight, not intentionally I hasten to add. 
 
Geoff.

Edited By Geoff Smith 1 on 21/06/2011 17:33:13

Pete B - Moderator21/06/2011 17:52:28
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Good move, Geoff - should improve the flying significantly
 
Pete
Steven Webb (Steve Webb Models)25/06/2011 15:55:35
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Putting the electic motor forward of the Bulkhead is a good move. I note Nigel Hawes did similar. Just been reading a thread where some find the spar COG a little to lively, I'm wondering if the position of the motor would have a relevance on that. If your after easy to fly - slightly nose down on the spar would be my advice regard C of G
 
Its looking good Geof
 
Steve
Chris Bott - Moderator26/06/2011 00:07:31
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Well it just isn't! - wonky, I did the maiden for Geoff this evening and no trim adjustment was necessary at all.
 
Well done Geoff it's a lovely flier.
David Ashby - Moderator27/06/2011 08:30:04
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Geoff, some pics of the not so wonky Webbit flying here.
Well done from me, it flew really well.

Edited By David Ashby - RCME Administrator on 27/06/2011 08:30:47

Steven Webb (Steve Webb Models)29/07/2011 21:36:06
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Stop Press Wonky WebBIT seen in the latest edition of RCME - with Geof.
 
TBH I think the plane looks fine. Nice to see you in the mag Geof.
 
Steve

Edited By Steven Webb (Steve Webb Models) on 29/07/2011 21:36:25

Geoff Smith 129/07/2011 22:06:56
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Thanks for this Steve. I am really pleased and surprised my Webbit flew so well. It was definitely wonkey. Luckily I noticed it early on and was able to 'build' the wonk out. Made me look a right idiot when it flew 'off the board'. Mind you I put that down to Chris's excellent piloting skills. Goes to prove one thing though Steve, even with my bad eyesight and shaky hands the Webbit must be one heck of a model to perform like it did. Cheers
Geoff

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