Looking for help or ideas

[Steven N]

This fuse was given to me. I'm returning to RC Gliding after 25+ years. I'm not familiar with this airfoil or model. The fuse is in good shape but I am in search of the proper wings for it. Any help is appreciated.

Steven N. Sorry, pictures are below.

[Ollie]

Length, weight, chord, tail moment length, materal, wing mounting type, etc.

[Steven N]

Overall length is 45"
Weight is 20 oz with 2 Futaba FP-S48 servos mounted
Fuse is fiberglass
the length of the verticle stab is a little over 7" moving section 3"
wing outline is 10" length and 1" at its thickest point

[SoCalGliderFlyr]

Looks like an Aquila or Aquila Grande glass fuse. Need a pic of the tail from the side. If you want to use it I would suggest several things.

First about the wings: The Aquila had built up polyhederal wings with just spoilers. You could find a set of plans and duplicate the wings. I would suggest increasing the size of the wing rod as well as the spar structure in the built up wings. Use carbon fiber caps and proper shear webs. This will get you into the nostalgic class as well as RES. The stabilator was also build up.

Now if you want some higher performance contact Ed Whyte and get prices for a set of bagged wings. He may have a set of "seconds" meaning some sort of cosmetic damage or building flubs that look bad but don't affect the wings performance. Ed's wings will have a newer airfoil that may be close to the top profile on the fuse but don't worry about it. Use wide plastic tape to keep the bagged wings on the fuse.

I would also expect to increase the size of the wing rod to at least 3/8" if not 1/2" diameter. Just drill out the existing holes. Try to stay on center. Might mark them and use a dremel with an 1/8" hogging end mill bit. If you opt for the build up wings you could use some shouldered bushings to reduce the size of the holes for the earlier wing.

Ed may also have a set of stabs but you will need to measure the center to center distance on the stabilator rods. You may have to increase the size of the main stabilator rod too. If built right and IF the tow hook is in the proper location you can use the built up stabilators with out putting too much launching stress on them.

[ejett]

It's not an Aquila or Aquila Grande. It appears to have a slip on nose cone.

It also appears to be ready for plug in wing wiring harness unless the rectangular hole is for a rectangular joiner.

Besides knowing it is not an Aquila fuse, I don't have any suggestions as to what plane it might be.

EJ

[Steven N]

Yes, it does have a slip on nose cone. Here's a couple of more pictures.

[Ollie]

Tail piovt hole for slab for fuse tail length to big hole for wing. The wing area will eight to ten times of the stab area. The fuse tail length 4 to 5 times the average chord of the wing. For the wing area divided by wing average chord calculated by the wing span.

[Steven N]

Ollie,
Ok, the distance between the horizantal stab pivot point and the wing spar hole is 24 inches. If I understand correctly we're looking at a wing span of about 98"? I apologize again for my ignorance, but it has been a long time since I did this. Since 1976. Does the fuse look like a kit that you are familiar with?

[ejett]

Steven:

Send Charlie Britt a PM. It may be a Falcon 880 or one of that family of ships. I know he has one and should be able to verify or refute as appropriate.

EJ

Edit: It looks like the Falcon 880 did not have a slip on nose cone either.

[Steven N]

ejett,
Thanks, I left him a message.

[CHARLIE BRITT 7]

In answer to your PM, it is NOT a Falcon 880.
The Falcon does not have a slip on nose cone and the fin is swep back.
Go to the Falcon 880 thread for pictures.
Charlie

[Steven N]

Do you think the wings of the Falcon 880 would work?

[Seadog]

NSP Edge?

Dave Smith

[Ollie]

The tail length of the fuse is short for the 10 in chord. Why not measuring stab area?

?????
Span 78" ?
6mm jointer ?
Name ? (Hobby Lobby importing) ?

[Steven N]

Ollie, here's a couple of pics and measurements. The wing joitner is 6mm
The wing chord indicated it's 10 inches with the thickest part at 7/8 ".

Thanks for helping me. The part that shows 4 1/5 should be 4 1/2

[Ollie]

Because the tail is short, the stab area at 72 sq in. QED, the wing ~585 sq in and wing span ~79 in. wing tip chord ~5 in.

(no-name) for Hobby Lobby, I think.

[Goinav8n]

Is this a Duck like the guys from Mich fly. Its not an Edge as the vertical stab is to straight up and down.

Jeff

[Radian]

Gentlemen,

Very sure... Bob Seely Fuselage for either a 124" Laser or 100" Pulsar (Fuse is the same for both). I have one of both plane types. Original airfoil is SD3021. Judging from the span of the stabalizer I would say it matches the Pulsar. The Laser's stab is a little longer.


Radian

[petefly58]

That fuse has characteristics of both my Whyte Wings Sapphire and my NSP Laser. It could also be from one of the other NSP Sailplanes such as Edge, Psycho, etc. In this case, any modern 118-122" wing you choose for it should be suitable provided the wing joiner will work with this fuselage. I can measure the length of the fuse of both these planes if you want.

Pete

[petefly58]

I agree, the Laser's stab is longer than the one in the photo. But the Sapphire's stab is built up, unlike the one in the picture. So the Bob Sealy suggestion may be most accurate. But that fuse sure looks like that on the Laser.

[Steven N]

Pete,
Yes please give me a measurement. On this one the distance from the LE to the middle of the joiner is 3 1/2 " or about 89mm. If you need any measurements from me, please let me know. I appreciate everyones help.

[Ollie]

Ch = (A_hori/A_wing) * (tail_arm/avg_wing_chord)

A well-sized tail will be in the range...
Ch = 0.35 - 0.50
If the Ch below the minimum value, the handling will suffer.


The wing ~79" span and ~7.5" avg chord to fit the stab and fuse.

[Steven N]

Thanks Ollie,
I'm not familiar with CH. What does CH stand for?
Thanks

[Radian]

Ok... So I checked against my Pulsar and Laser fuse.. Both look identical to the pics except the scale does not match. Where Steve N has 8.5" for vertical tail, I have 10.5.

This leads me to believe it is probably the "little brother" from Quality Fiberglass (Bob Seely) that I did not own. The 2M Pulse. I remember seeing one in the past and recall how exactly the fuse looked like that of the 100" Pulsar.. Just smaller....

Radian

[Steven N]

Radian,
Are there any sights that I can take a look for myself?

[Steven N]

Radian,
Are there any sights that I can take a look for myself? Or what would you suggest as replacement wings?

[Radian]

Radian,
Are there any sights that I can take a look for myself? Or what would you suggest as replacement wings?

I couldn't find any sites right now. The only info I have on the Pulse is from my memory and a 1994 NSP catalog. The catalog lists the wing span as 77" and Area of 621in^2

Bob Sealy is still in business just not making gliders as I can see. His web site is here: www.qualityfiberglass.net I e-mailed a request for more info to him already. Also provided a link to this thread so that he can see the pictures for himself. Hopefully he will respond.

I have both the Laser and Pulsar. The Pulse had a scaled down fuse that was identical in shape to that of the Pulsar. The wing Chord also matched at 10" but obviously the aspect ratio was smaller.

Northeast Sailplanes still markets the Pulsar kit. Here is a link:
http://www.nesail.com/detail.php?productID=70

I'll see if I can dig up some more info.

Radian

[Ollie]

Pulse and 6mm joiner?

6mm joiner is a clue!

The tail volume coefficient (Ch) or tail area times tail length for normal wing area times wing chord length.

[Steven N]

Thanks Ollie. I see by the posting time, that you are a late night poster like me.

[ejett]

I think I may have a Bob Sealy catalog in my files back in Meridian. I can take a look and see if I can find it and will pass along any pertinent info from the catalog if I do find it.


NSP still lists the 100" span plane in the standard class sailplane section on their website. Take a look at that and see if you can match up to what you have.

http://www.nesail.com/detail.php?productID=70

EJ

[Steven N]

Thanks ejet,
If you do find something, let me know.

Thanks again

[gdjsky01]

Thanks Ollie. I see by the posting time, that you are a late night poster like me.

Where Ollie lives, that is a large VICTORY!
:D

Ollie good to have you around!