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Avatar User Offline BobH
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Posted: April/25/2021 at 1:39pm  Quote
 
The T-33 one of my favorite planes! Looks super! Good luck on your maiden!!
 
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Avatar User Offline LBJ
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Posted: April/25/2021 at 2:14pm  Quote
 
Strikingly great looking paint job! Horry do! Lane

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Avatar User Offline matze
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Posted: April/26/2021 at 6:12am  Quote
 
Hi all,

I thank you very much for your comments.
Maiden done.











Sorry, no movie.

Take off with about 15 degres of flap was nice and easy. Power is enough.
The flying is very nice. Little more than half throttle suits for horizontal flying. I flew without any gyro, the rates of ailerons and elevator , dialed in according the kit instructions, were little to much for my flying. I just flew go arounds on this very first flight. A few clicks of trimming on ailerons and elevator. CG with my turbine BF100 is perfect, when placing 2x 2500 batteries for RX , 1x 2500 for engine and 1x 2500 for gear in the very front. But I changed the steel tubes for horizontal stab and wings by carbon tubes. Which safes some 200g :)

A bit on elevator down mix, about 3 mm, when applying, was ok.

As it was my first flight with a turbine, so I am quite happy with the result. On our grass landing strip (little more tham 100m) I have had to aplly full flaps to reduce speed. On low finals I was to slow with the gas, giving more power to late , or better: the turbine accelerated slower than an combustion engine, so that the plane drops to gound to early. I have to repare two carbon bearers ot main gear now. But could be much worse.  :)

see you all




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Martin
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Avatar User Offline karaya 1
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Posted: April/26/2021 at 6:49am  Quote
 
Martin- congratulations- great looking aircraft in the field.  You will get comfortable with this airframe with some practice and the landings will become easy- Matt




 
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Avatar User Offline matze
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Posted: April/26/2021 at 7:03am  Quote
 
Quote: karaya 1
Martin- congratulations- great looking aircraft in the field.  You will get comfortable with this airframe with some practice and the landings will become easy- Matt



Hi Matt, thanks very much. Yes, I hope to get comfortable. I am quite eager to get the bird into the air again as soon as possible.

I need your help or thoughts , please, about the following:

All gears, main landing gears and front gear are each bolted to a gear-mount. This mounts are made of  plates of 2mm carbon.
The 2mm carbon mounts are bolted on the airframe on bearer.

The idea of the constructor seems to be: when making a hard landing, you destroy only the thin mounts and not the bearer or the airframe itself. Better to break the mounts, then to brake the airframe.

This is a broken mount:
On the four outer holes , it is screwed onto the bearer on the airframe. The gear itself is bolted on the four inner holes.

I have a question:
I am not sure about further following this intention of the constructor. The thin, small carbon mounts are not very stable or really hard. I am quite sure, that a more stable contruction would have survived my landing, as the landing wasnt to hard.
So what to do?
Should I replace this mount with material of the same thickness, i.2. 2mm. I believe, the new carbon I would use, would be of better quaility then the original one.
Or should I go for more material, more thickness, 3 or 3.5 mm? Taht would hold on more?

Any suggestions welcome.





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Avatar User Offline karaya 1
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Posted: April/26/2021 at 7:16am  Quote
 
I would go thicker if the landing was acceptable and the plate broke, looks too thin to me too.  I would go thicker carbon or plywood, at least 3 mm.  Warbirds and others use thick hardwood bearers into 3mm plywood ribs with triangle gussets.  Good Luck- we want to see it back in the air quickly also- Matt




 
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Avatar User Offline Sparky
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Posted: April/26/2021 at 8:07am  Quote
 
Martin,
You asked and you will get different opinions. I would keep using the plates as designed. They are designed to fail before more robust parts of the wing fail. Yes its a kind of PITA but in the long run you are better served by having those fail and perhaps do some cosmetic damage to the bottom of the wing and gear doors.
Since this is your first flight I think you need a few dozen flights and get comfortable landing the plane and if the gear keeps coming out on normal landings only then would I consider replacing the plate with something slightly stronger.
Contact the MFG for suggestions and other modelers who are flying this model for their suggestions.
I have breakout plates on one model and they work as they should!

Sparky

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Avatar User Offline Admin
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Posted: April/26/2021 at 9:54am  Quote
 
I agree 100% with Sparky's comment. He is spot on!

Absolutely beautiful model!


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