An ambitious project - scratch-built Avro York

Started by Michael, April 14, 2020, 03:10:00 PM

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Frank v B

The sign of an experienced builder/flyer.  Lots of room around the wheel when retracted.
 
Retracts always bend, bind, jam, slam, refuse to retract or jam in the "up" position*. 

They generally refuse to do their job when too confined like modellers stuck in basements instead of at Rogo Field. ;)

Frank

* see a qualified mechanic is this happens for more than 4 hours. ;D  (Sorry)
"Never trade luck for skill"

Michael

Forward and top fuselage under construction.

It's sort of like a puzzle that I make up as I go along.

Michael

Michael

More work on the fuselage and the wing-top.

Michael

GuyOReilly


bweaver


Michael

Wiring done. It seems there's about 18 miles of wiring in the wing!

Anyway, the motors all turn in the directions I want, and the retracts work.

Total weight so far is 1750 grams, or about a couple ounces less than 4 pounds. Hopefully, I can keep it under 5 pounds including covering and battery.

I'm on-and-off worried that the tail is a bit too small, but (there are 3 rudder/fins) it is almost the same area as my 60-size Mustang which weighs about twice as much, so I'm guessing/hoping it'll be okay.

Next: finish the nacelles, maybe make my own spinners, and make a battery hatch.

Michael

sihinch

This really is an amazing project Michael.  Well done, Sir.  :)

Frank v B

Michael,

re: "I'm on-and-off worried that the tail is a bit too small, but..."

I don't know if you are using model plans or scale 3 views.  One of the guidelines I was told in WW2 models is that tail feathers should be enlarged by at least 15% compared to true scale.

For what it is worth.

Frank
"Never trade luck for skill"

Michael

Due to compromises in construction, this will be a "semi-scale" rendition.

Covering and some detailing underway.

Michael

Michael

Quote from: Frank v B on May 30, 2020, 10:51:04 PM
Michael,

re: "I'm on-and-off worried that the tail is a bit too small, but..."

I don't know if you are using model plans or scale 3 views.  One of the guidelines I was told in WW2 models is that tail feathers should be enlarged by at least 15% compared to true scale.

For what it is worth.

Frank

All three fins/rudders have been enlarged.
Michael

Michael

All major construction, covering, radio installation, power installation is done.

Total weight is 5 pounds with battery.
I still have to build a battery tray, adjust linkages and adjust throws.
I'll do additional decorations after a successful flight.
I may add an ounce or two of nose weight.

Now I'm waiting for a sub 10 km wind sunny and warm day to fly it!

Michael

Frank v B

#56
It flew today.  It was not the best maiden weather (gusty, from the west, oscillating wind) but Michael achieved it.
The take-off was absolutely perfect and the flight looked like everything went well.  Bumpy landing because of the gusts.  Great flying Michael.

Frank
"Never trade luck for skill"

Michael

Thanks Frank for the encouragement and help.

Here's a great photo by Andy, taken after the maiden.
Michael

sihinch

Congratulations Michael on a brilliant project climax.

Gregor77