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Oct 22, 2019, 09:18 AM
Retired CAD guy
birdofplay's Avatar
Thread OP
say you'r up late ;>}

re Ladybird
Oh yea I forgot about that one.
Well, then ... it's got to be all of the Fuse side.

The Ladybird has a lower fuse as does the Vixon.

I am at a loss to explain this mystery
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Oct 22, 2019, 09:24 AM
Tony Audsley Retired Locksmith
Lockey's Avatar
Quote:
Originally Posted by birdofplay
say you'r up late ;>}

re Ladybird
Oh yea I forgot about that one.
Well, then ... it's got to be all of the Fuse side.

The Ladybird has a lower fuse as does the Vixon.

I am at a loss to explain this mystery
Think you could be right Bob, also the fuselage bottom must be giving lift too to bring the CG so far forward (almost to the front of the wing (amazing really)

Maybe I should remove the fuselage altogether and start again with a new fuselage

Lockey
Last edited by Lockey; Oct 22, 2019 at 09:36 AM.
Oct 22, 2019, 09:39 AM
Retired CAD guy
birdofplay's Avatar
Thread OP
Even With the Cg so far forward the nose did not drop off in a turn.
It's like automatic Knife Edge.

I don't think I ever built the Lady Bird, but I have it on Depron - wheew that was a long time ago.

I may transfer to MPF an have a go .. some time this upcoming Long winter building season.
Oct 23, 2019, 12:08 AM
Tony Audsley Retired Locksmith
Lockey's Avatar
I have decided to give this one another go and lower the top fuselage by 30mm to see if it will take away some of the strange behavior

I was able to re-use the top fuselage section (with motor intact) but made a new front and bottom fuselage section, although I could have reused the rear section of the fuselage too

I will use a 4s battery on the next test flight

Lockey
Last edited by Lockey; Oct 23, 2019 at 07:30 PM.
Oct 23, 2019, 06:50 AM
Tony Audsley Retired Locksmith
Lockey's Avatar
Ready to test fly again, same motor will try with 8 x 6 prop and 4's battery

Lockey
Oct 23, 2019, 12:39 PM
Foamy and Glider fanatic
Blacky's Boy's Avatar
Lockey,
You are one of the few guys I've seen that can take a crashed airplane and make the repairs look seamless. Well done!
Oct 23, 2019, 06:36 PM
Tony Audsley Retired Locksmith
Lockey's Avatar
Quote:
Originally Posted by Blacky's Boy
Lockey,
You are one of the few guys I've seen that can take a crashed airplane and make the repairs look seamless. Well done!
Thanks BB appreciate your comment .. now .. if only I could do the same with my tied and worn body and face

Lockey
Oct 23, 2019, 08:36 PM
Retired CAD guy
birdofplay's Avatar
Thread OP
I can't make new builds look that good.

Can't wait to see if it flys differently.
Oct 25, 2019, 12:50 AM
Tony Audsley Retired Locksmith
Lockey's Avatar
Quote:
Originally Posted by birdofplay
I can't make new builds look that good.

Can't wait to see if it flys differently.
Bob.. Viking now flies like its on rails .. BIG improvement .. the fuselage must be acting like a wing and adding quite a lot to the wing area because the CG is WAY further forward than you would think .. about 70mm (2.7 inches) further forward than the step which is where it is on the Vixen

Video later

Lockey
Last edited by Lockey; Oct 25, 2019 at 01:14 AM.
Oct 25, 2019, 02:35 AM
Sokol
JureZ's Avatar
Quote:
Originally Posted by Lockey
Bob.. Viking now flies like its on rails .. BIG improvement .. Video later

Lockey

congratulations Lockey ! well deserved success !
Oct 25, 2019, 02:56 AM
Tony Audsley Retired Locksmith
Lockey's Avatar
Quote:
Originally Posted by JureZ
congratulations Lockey ! well deserved success !
Thanks JureZ, appreciated

Lockey
Oct 25, 2019, 04:54 AM
Tony Audsley Retired Locksmith
Lockey's Avatar
Hey Bob, here is the video

Lockey

Viking Re maiden with new lowered fuselage (6 min 35 sec)
Oct 25, 2019, 09:04 AM
Retired CAD guy
birdofplay's Avatar
Thread OP
Woo Whoo !

I"ll be modifying mine shortly !
Oct 28, 2019, 08:04 PM
Tony Audsley Retired Locksmith
Lockey's Avatar
Now this one flies good, I think I might build the swept wing version

Have almost finished the plans for both if anyone is interested in building either one of these .. AND ... Bob https://www.hoosiercutoutservice.com will soon have the files to cut either one.

I have managed to get it (either one) from 2 full sheets of Depron (1000 x 700) .. not sure how Bob will go using MPF

Guess it will now have to be "Viking-S" and "Viking-D" .. for "Delta wing" and "Swept wing"

Lockey
Last edited by Lockey; Oct 28, 2019 at 09:36 PM.
Oct 28, 2019, 09:28 PM
Retired CAD guy
birdofplay's Avatar
Thread OP
Not to worry, I can do it on MPF fer sure.


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