judgedredd

A Blue Angel 40 SR just went for $735.01 on eBay! That's the one I had my eye on. Did anyone on here buy it? If so congrats!!

dhal22

Mike, a few views short of 200,000. Truly a compliment to your building skills and thoroughly detailed thread.

8178

My Feedback: (17)

You are correct and thank you David. Only about 200 to go to make 200,000 views. That does seem like a lot of views for a build thread where only one person is involved with the build, plus the small community of Classic Pattern.

Mike

speed-panzer

My Feedback: (1)

Just a real great build thread, and a true classic pattern plane.
Every once in a while I page through for one or other detail, to get an idea for oh so many small problems you come across your own projects....

Dominik

dhal22

200,000 views. Wow.

8178

My Feedback: (17)

I’m amazed that my humble little build Blue Angel build could accumulate 200,000 views. Many thanks to all of you that provided encouragement along the way as I was working though how to build the beast.

Mike

martair

Hi guys

For quite some time I have been keen on building a piece of history...something I was looking up to as a kid.
The Blue Angel cought my eye already a while ago.
I came across this thread and read all the way thru.
Just a few days ago I have set my eyes on the Steinhardt Red Devil, but after going thru this fantastic building log I realised
that the Red Devil is not quite a Blue Angel!?
What's more...there is still a lot to do!
The Blue Angel from Sunshine seems to be a lot closer, much more is done already...and hey, it's noch even much more
expensive the just the fuse, canopy and plans from Steinhardt!
To cut to then chase...I just ordered a kit!!
I am looking forward to receiving the kit and will get back once it arrived!

Thanks guys!

Cheers, Martin

hook57

My Feedback: (21)

Sunshine? Are they still making the BA, and maybe the Curare? I picked up one of each at a swap shop earlier this year. The BA was on my wish list for a long time. The Curare has some differences, but hey, it's still smells of late seventies pattern! Meaning 10cc two strokes, pipes, retracts, 11X7 3/4 props on 5 or 10% nitro, and flat out speed......!!!
mark

8178

My Feedback: (17)

Martin,

Here is a build thread where they modified it to look more like a Blue Angel http://www.rcgroups.com/forums/showthread.php?t=1395902

Mike

martair

Hi guys

Does anybody know the original profile used on wing and stabs on the Blue Angel 60??

Cheers, Martin

doxilia

My Feedback: (3)

Martin,

a Japanese variation of the HQ aerobatic symmetric airfoils. Compared to HQ, MK classic foils have a slightly sharper LE entry but max thickness occurs at about the same point (~35%). Foil thickness is also often on the order of 14%.

In any case it's not a standard foil as far as I've been able to learn. If one were to use HQ, you'd be very close. I have.

David

8178

My Feedback: (17)

The Blue Angel does have a really nice looking airfoil. It does not have the blunt leading edge that you see on some of the other 70s vintage aircraft.

Mike

martair

Thank you guys for the info!
I realised that it must be something special, looks different from what I am used to.
I am planing to digitalise the plan I downloaded to CNC the parts to build a BA.
It is my aim to amend the construction in a modern way to safe weight. Thick balsa sheets to be sanded to shape
is certainly not state of the art anymore!?

As for the airfoil I am considering something more modern as well maybe!?
What do you guys think, should I rather use the original one??

To all the guys out there that own a Blue Angel:

Is there any washout in the wing?
Comparing the airfoils at the root and at the tip from the plans it seems that the thickness does not change and also that there is no washout!?

In the meantime my BA-kit from Sunshine Germany with the fibreglass fuselage and the foam wings arrived at my sisters in Switzerland and I will pick it up
in about 3 weeks. I am looking forward to inspect that thing, specially when it comes to the wing and its airfoils.
The weight of the kit will also be very interesting

Still not sure if on this model I will leave the more modern ailerons (named in here as barn door! ;-)) since this is acc to modern aerodynamic findings
the better option anyways!?
I might focus on a more original style on the second one which will be built in wood.
Also the question of the motor remains. On the first one I will most probably go electric.

Well...I will report again with news as soon as I have some :-)

Have fun flying guys!!!

Cheers, Martin

dhal22

I think my BA is 8lbs, same short kit as this plane (foam cores) and I used contest grade balsa.

doxilia

My Feedback: (3)

Martin,

it it is extremely rare to have washout in pattern planes. Washout turns into washin when inverted!

David

8178

My Feedback: (17)

Actually the "barn doors" are old style and you will see them on the very old classic designs.

bob27s

My Feedback: (19)

Just adding to the view count

8178

My Feedback: (17)

Miss you at the Atlanta RC club Bob.

Mike

dhal22

Bob weren't you away from RCU for a bit? If so, good to see you back around.

Taurus Flyer

Just as differential for ailerons

TF

eness76-RCU

My Feedback: (13)

VERY apples and oranges. Differential is used to equalize the drag between the two ailerons during a rolling moment, thereby eliminating unwanted yaw that is inducing a "barrel" to the roll. They should truly be zeroed in the neutral position, so there is no wash-in/wash-out.

8178

My Feedback: (17)

I usually don't use aileron differential on high performance pattern aircraft because when you fly inverted it provides the opposite effect than intended.


Mike

dhal22

Good to see you post over here Mike.

Taurus Flyer

In this thread the Blue Angel is the subject so it would be interesting to see the throws of the ailerons as it was designed in the past.
For my Taurussus I use a own designed (analog) mixer that calculates the throw of the rudder depending of aileron and elevator deflections especially for inverted figures. For slow roll and 4 point roll etc.I switch off the mixer.

Taurus Flyer

dhal22

And a great subject it is.

So powerful the modern radios are. I look at my uncle's sliding aileron/flap mechanism design from many years ago (aeronautical engineer) and thank the Lord I have a modern radio.