Anyone know Tip Chord of 190D9?

[Stoney]

Getting ready to run a series of evaluations on the 190D9 to illustrate effects of altitude on turning ability and need the tip chord to establish Clmax for tip stall behavior.  I know the airfoil and thickness ratio, just need the tip chord to generate the Reynolds numbers.

[DPQ5]

who what now

[Wingnutt]

See Rule #2

[BnZ]

Nah, lawyers speak gibberish, as far as I know aeronautical scientists don't have 42 words for the same thing, and don't argue over the meanings of "keep" and "is"...

That said, I have no idea what the tip chord on the RL Dora was Stoney.

[VonMessa]

Getting ready to run a series of evaluations on the 190D9 to illustrate effects of altitude on turning ability and need the tip chord to establish Clmax for tip stall behavior.  I know the airfoil and thickness ratio, just need the tip chord to generate the Reynolds numbers.

Can you do the arithmetic from a print?

I may have a 1:72 scale print here somewhere if it didn't get "lost".  Actually it's an AutoCad.dwg file, so I may be able to pull the dims. 

In the meantime, I'll look for it.

[Stoney]

Can you do the arithmetic from a print?

I can...I've got a 3-view source someone forwarded me in another thread.  I'd rather not though, if someone has a resource that has the actual numbers.

[VonMessa]

Rgr.  I admire the quest for accuracy.

 

[SD67]

I'll have a look in my archives to see if it's buried somewhere in there.

All I seem to have is the tip chord for the 190A
I have that listed as 48.6"

[gripen]

I have 1200mm in the tip from DVL measurements ie straight lines along the leading and trailing edge are 1200mm from each other when the wing ends.

[TUXC]

All I seem to have is the tip chord for the 190A

Don't the 190D and 190A have the same wing?

[VonMessa]

Don't the 190D and 190A have the same wing?

Don't you have classes to be attending?

WOOF!

[Old Sport]

Hi Stoney,

You might click the contact tab of these folks and ask them. This is the company that is building Allison powered 190Ds. If they respond... then you'd think they would be able to give you whatever specs you want.

http://www.flugwerk.de/diary.shtm

All the best.

[Stoney]

I have 1200mm in the tip from DVL measurements ie straight lines along the leading and trailing edge are 1200mm from each other when the wing ends.

That converts to just over 47 inches.  Given the tip chord listed for the 190A, I'll just use 48" as the tip chord.

[TUXC]

Don't you have classes to be attending?

WOOF!

Haha, are you confusing me with someone else in our squad? I'm at work.

[VonMessa]

Haha, are you confusing me with someone else in our squad? I'm at work.

HA!  Oops,  don't you have work to do?   


Congrats Stoney, and thanks for the hard work.