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"Giant" Cessna

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Steve W-O21/01/2012 08:57:49
2775 forum posts
310 photos
 
(shop photo, not mine)
 
Well, maybe giant is a bit much, but it is certainly very large.
 
I put a CD in some of the photos for reference
 
Arrived at the beginning of last week, bought from Norway. Very slow delivery from the time I was first told it was on its way, but well packed, with an outer box around the main box.
 
The quality is amazing, comparing it to the other two makes of "larger" foam planes I have. It makes the wot4foame look very poor, and multiplex could certainly pick up some tips from it.
 
It comes with hinges installed, motor mount, u/c mount, pushrods, servo wires to the wings all preinstalled.
 




 
 
The battery bay easily takes two 4000mAh 3s side by side
 
 
The outside has moulded lines for the doors, hinges, fillers etc, so a marking pen will add a bit of detail
 
 
Comes with all the bits needed to finish it, even a screwdriver and spanner for those who have no tools

Edited By Steve W-O on 21/01/2012 08:58:26

Steve W-O21/01/2012 09:09:37
2775 forum posts
310 photos
There are a couple of things I wonder about. The elevator has two pushrods, split just behind the servos, so it feels a bit stiff.
 
Some people modify it like this

 
but I can't see at the moment how to get the pushrod tubes out neatly to thread the servo wires through.
 
 
 
The two flap servo cut outs are made with the head of the servo towards the wingtip,

which may look neat on the drawing, but it means one has to be reversed, or one of the flap servo cut outs has to be modified. Also they have hinged the flaps along the centre line. OK, so that means you can use them for braking, think they would be better hinged on the lower surface and only being able to go down, it gives a much cleaner wing in normal flight.
 
The wing struts, which are obviously functional, are 8 gauge wire, which is heavy, some carbon would be nicer, but of course not so easy to make the end attachment points.
 
The inside is quite well detailed, four seats and a dash

 
but as someone else commented, you can't get the windows off to put any passengers in
Tim Mackey21/01/2012 09:15:07
20523 forum posts
270 photos
15 articles
Could you cut the floor, and add the office staff from below, with their own "floor" to cover up the hole?
I have done this on a couple of models that had the same problem.
Steve W-O21/01/2012 09:46:18
2775 forum posts
310 photos
Posted by Tim Mackey on 21/01/2012 09:15:07:
Could you cut the floor, and add the office staff from below, with their own "floor" to cover up the hole?
I have done this on a couple of models that had the same problem.
 
The floor is above the batteries and servos, it also forms part of the load taking structure for the U/C and wing struts, so not the easiest way in unfortunately
 
I will find a way, my first thought is to cut around the foam on the back window, and use the cut away foam and window as a hatch with pins and magnets, It will also give me access to the "luggage area" for a couple of gyros (disguised as suitcases of course)
 
I took it out of the box this morning to check and take some photos, but it is back in the box until I have got on with the Linnet, so I have some time to think and listen to ideas
IanR21/01/2012 10:54:38
499 forum posts
Sorry, Steve, but you can't do that - I mean, put it back in its box to get on with this Linnet thing, whatever that is.
 
Like you, I think, I'm not over-enamoured with the Wot 4 Foam E and this looks like a very interesting, better quality, possible alternative. At least give us some details so we can track it down and begin checking it out on the internet whilst we wait for your further thoughts.
 
Cheers, pal
 
Ian
Foamie Dave21/01/2012 11:25:34
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530 forum posts
866 photos
Hi Steve, I had a play with one of these last year and its an absolute peach to fly, gerrit built ...you'll love it.



Steve W-O21/01/2012 11:37:43
2775 forum posts
310 photos
T h i s is the Linnet.
 
 
 
 
 
And t h i s is the Cessna. At 119 funny money, it is good value.
 
Their delivery time is disappointing, nearly two weeks after they first said they would send it.
 
I will be using t h e s e servos, probably 8 of them, or five and two standard servos.
 
and t h i s motor.
 
I may put on slightly larger wheels and make new spats from depron, or leave the spats off altogether.
 
Plenty on youtube
 
 


There are others, but some of the best flying has daft music on it, so you can't hear the motor.
IanR21/01/2012 11:42:51
499 forum posts
Cheers Steve,
 
+1 re daft music and motor/engine sounds.
 
Regards
Ian
Stephen Grigg21/01/2012 12:20:16
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8691 forum posts
1128 photos
I really like this one Steve but its not what Im into ,but its very impressive.I note from the vid ,they have proper wing struts on theres
Steve W-O21/01/2012 12:34:54
2775 forum posts
310 photos
Posted by Stephen Grigg on 21/01/2012 12:20:16:
I really like this one Steve but its not what Im into ,but its very impressive.I note from the vid ,they have proper wing struts on theres
 
 
Yes, the wing struts are heavy, 8 gauge piano wire. I want to look at using some 3mm carbon rod, but I will probably need to turn some fixings, and that means getting into the garage, and that will be a major challenge!
Biggles' Elder Brother - Moderator21/01/2012 13:48:57
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Moderator
11835 forum posts
1091 photos
Looks great Steve. Flys well on the flaps too.
 
One thing I did notice - quite a bit of left yaw in the full power verticals - might it be worth making provision for a bit of extra right thrust when mounting the motor?
 
BEB
EZ-Hawk21/01/2012 18:07:06
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32 forum posts
Bit boring, but if you like that sort of thing!!
ericrw21/01/2012 18:20:53
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838 forum posts
18 photos
I needed to put collets on the wing struts as one of them came loose whilst in flight but no harm was done !!
Steve W-O21/01/2012 18:24:46
2775 forum posts
310 photos
Posted by Biggles' Elder Brother - Moderator on 21/01/2012 13:48:57:
Looks great Steve. Flys well on the flaps too.
 
One thing I did notice - quite a bit of left yaw in the full power verticals - might it be worth making provision for a bit of extra right thrust when mounting the motor?
 
BEB
 
 
 
 
 
Thanks, gl;ad you noticed, I will have a look at the videos, and will definitely add some right thrust.
 
I also noticed on the one video that he seems to have to hold quite a bit of down elevator in under power (porpoising) so will loot carefully at the thrust line.
David Ashby - RCME21/01/2012 18:49:46
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Moderator
10464 forum posts
1527 photos
590 articles
I like it Steve, 75" span eh? The foamies keep growing!
Needs a bod in the office
 
 
 
Steve W-O04/02/2012 06:36:51
2775 forum posts
310 photos
Took the pushrod tubes out this morning.
 
Butchered the end of a piece of brass tube, chosen to just slide over the pushrod tube
 
 
The tubes just protrude from the back of the fuselage
 
 
 
Slid the brass tube over the pushrod tube, and twisted it to cut through the glue

 
 
On the front end, the tube is buried about a foot back from the hatch, so I put the pushrod back in, and used that to guide the brass tube to the right place, it was just long enough.
 
Then with the pushrod still in, I threaded some servo wire through the clevis at the back

 
And pulled the pushrod from the front, it pulled the whole lot out, and pulled the wire through.
 
 
Once the servos are in, I will solder the wires, embed them into the foam, and cover with white tape, and they will be well hidden.
 
 
I also weighed everythiing, and the whole plane, minus power system (motor, esc, battery and prop) is just under 2000g.
Cyclicscooby04/02/2012 13:44:00
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874 forum posts
531 photos
I like it... Big, slow, flaps, foam... Excellent..
 
 
Luv
Chrisie.. xx
Myron Beaumont04/02/2012 14:34:04
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5777 forum posts
51 photos
Chrissie
Well now we know what you like
Steve W-O13/04/2012 18:07:44
2775 forum posts
310 photos

Nearly finished putting it together, but what wing joiner?

I have the supplied steel tube, looks like a bit of rolled bean tin, I have some very nice seamless stainless tube, and my preference, some carbon tube.

The load is taken partly by the tube, and partly by the wing struts.

Never taken so long to put an ARTF together, every servo wire had to be soldered to extend, changed the way the servo wires to the tail go through the fuselage (most people put them through the holes left after removing the pushrods, but I didn't want to see them. Had to make a new duct for the wing servo wires, make a mounting for the nose wheel servo, put in stronger axles, make new pushrods for the controls. Just seems to be going on for ever for what it is.

Cyclicscooby14/04/2012 00:05:08
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874 forum posts
531 photos

All the 'quick' simple tasks, in the model room, take 5 times longer than you thought they would.. It's the law I think ?!

Inbetween 5 flights today, I managed to glue on 5 half-ribs, then had to leave them to dry.. So much for my quick 3wk STOL project.. I'm about 2 months in at the mo, with no end in sight.. !

 

Sure you'll be airbourne soon enuf..

 

Luv

Chrisie.. xx

Edited By Cyclicscooby on 14/04/2012 00:05:49

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