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Author Topic: Avro Arrow C-105  (Read 985 times)

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Offline GuyOReilly

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Avro Arrow C-105
« on: June 08, 2022, 09:06:30 PM »
The start of something new and interesting.   ;D
Kit is Models By John that was given to me by the estate of my friend John Riley (a different John than the kit manufacturer).
It will be powered by a single ducted fan, 80 AMPS ESC and 5-6 cells.  I am told it is more than ample power for the model.
Step one: Open the box and look at the goodies inside, see pictures.
Step 2: trial fit a few pieces, see pictures.
Step 3: read the instruction manual for the 5th time.
Step 4: I did not get that far yet, I need to buy more glue.  :(

#72 - The Box
#73 - The some of the Box contents
#74 - More things in the Box
#75 - Trial fitting the tail end and bottom pieces on the sides
#76 - View of the tunnel
#77 - View of the bottom, from the front



Offline GuyOReilly

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Re: Avro Arrow C-105
« Reply #1 on: June 11, 2022, 01:00:14 PM »
Glue secured!
Construction will start soon.   ;D

Offline GuyOReilly

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Re: Avro Arrow C-105
« Reply #2 on: June 15, 2022, 11:00:00 PM »
More progress, it now looks like an Avro Arrow (50/50 rule @Frank v B ) ;)
Construction is blue foam, some needing shaping, such as the nose cone: take a triangular block and make a round (roundish) cone with it.
Power will be using this 10 blade fan with an 80 amp ESC and 5 or 6 cells LiPos.
Model is light; slightly less than 14 ounces at this stage.
Next is more shaping and sanding, and adding carbon fibre reinforcements in strategic places.

Photo # 90 - Model is large, larger than I first thought.  Storage might be a problem.
Photo # 91 - The power unit front view.
Photo # 91 - The power unit from the back.

Offline Frank v B

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Re: Avro Arrow C-105
« Reply #3 on: June 16, 2022, 07:54:49 PM »
Guy,

More than beats the 50/50* rule.

As Glenn will tell you, the CG on the Avro Arrow is at the shark's tooth on the leading edge.

Keep going!

Frank

* if you can't see a detail at 50' and 50 miles per hour don't waste your time on it. 8)
"Never trade luck for skill"

Offline GuyOReilly

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Re: Avro Arrow C-105
« Reply #4 on: June 21, 2022, 08:05:02 PM »
Testing the fan set-up.
Plenty of power!!




Offline Frank v B

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Re: Avro Arrow C-105
« Reply #5 on: June 21, 2022, 09:41:49 PM »
Guy,

re: "Plenty of power!!"

30 seconds at full power and your shop is dust-free. 8)
So you clamped down the motor....but did you tie down the Workmate??

Frank
"Never trade luck for skill"

Offline GuyOReilly

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Re: Avro Arrow C-105
« Reply #6 on: June 27, 2022, 08:01:34 PM »
I did not like the droopy nose.
The before and after rhinoplastic surgery.

03 - Before.
05 - After rhinoplastic surgery.

Offline GuyOReilly

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Re: Avro Arrow C-105
« Reply #7 on: July 12, 2022, 10:50:00 AM »
EDF and thrust tubes epoxied in place.
Yes @Andy Hoffer the clamp will be removed prior to the Maiden Flight.

Offline GuyOReilly

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Re: Avro Arrow C-105
« Reply #8 on: July 23, 2022, 01:08:29 PM »
Started the fibreglassing.
Easy and light process.

Offline GuyOReilly

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Re: Avro Arrow C-105
« Reply #9 on: August 31, 2022, 08:56:33 AM »
Testing control surfaces and motor.
All good in the correct direction.
Plenty of power.




Offline GuyOReilly

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Re: Avro Arrow C-105
« Reply #10 on: October 17, 2022, 08:27:55 AM »
Plane was ready for a maiden flight. 
Hand launch on 4cells not adequate.
A dolly will be constructed along with a bungie cord and towline contraption.
Also, will probably gonto 6 cells.
Thank you @Frank v B for holding back on going full power when I was looking for fudder.
You are not fired, just yet...

Offline GuyOReilly

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Re: Avro Arrow C-105
« Reply #11 on: October 17, 2022, 09:39:00 AM »
Whilst charging the batteries this morning, I noticed that the one used was a 3-cell.
Definitely not enough power.
This may be why we did not achieve flying speed.

Offline Wingnutz

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Re: Avro Arrow C-105
« Reply #12 on: October 17, 2022, 10:26:04 PM »
Using a 4S battery should give you a noticeable increase in thrust. Good luck!
DOWN WITH GRAVITY! UP WITH LEVITY!

Offline Frank v B

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Re: Avro Arrow C-105
« Reply #13 on: October 19, 2022, 06:16:12 PM »
Guy,

re: "I noticed that the one used was a 3-cell".

Phew!  That's like asking me to test drive a car you have built with one wheel missing.  I prefer 4 wheelers. ;)
Great video by Colin via his drone.
re: the test flight.  Some people dowse for water.  Your plane successfully dowsed for broken chairs.

Frank
"Never trade luck for skill"

Offline GuyOReilly

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Re: Avro Arrow C-105
« Reply #14 on: October 30, 2022, 09:19:01 PM »
Dolly made, ready to test as soon as bungie cord located.