RE: Sig's new Waco SRE

RE: Sig's new Waco SRE
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RE: Sig's new Waco SRE - 11/14/2007 1:32:49 AM

rloeb

Posts: 18
Joined: 3/29/2007
From: Parker, CO, USA
Status: offline

Scott,

Thanks for the suggestion about disconnecting the flying wires by just unscrewing the mounting screws. Now that seems obvious.

I really like the instructions that come with this ARF. They're sort of chatty. Mostly, they include many of the little hints that you have to find on fora such as this, such as all the "other" stuff that makes it all come together. In the next version <grin>, add the hint about unscrewing the flying wires :-) And, there are a lot of nice "finished" touches in this kit -- the pushrods are bent and have clevis' already attached, etc. All in all, a beautiful bird, particularly now that I don't need a trailer to carry it.

Rog

P.S. I read with care your remarks about the Saito 100. I'm at 6100 feet. Generally, we increase that 20-25%. The Saito 125 is the same size as the 100, but I'm going to try an SPE26 gasser.

(in reply to S. Christensen)

Post #: 151

RE: Sig's new Waco SRE - 11/26/2007 8:57:22 PM

Didg

Posts: 196
Joined: 11/22/2005
From: Scotland, UNITED KINGDOM
Status: offline

I've just installed my RCV91, goes completely in the cowl, no problem.

Are the flaps power operated on the full size, i.e. slow extend / retract speed?

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Post #: 152

RE: Sig's new Waco SRE - 11/26/2007 11:01:22 PM

SDCrashmaster

Posts: 3150
Joined: 1/15/2002
From: San Diego, CA, USA
Status: offline

How do you guys pronounce Waco
Just curious, as I've heard it several ways.

Is it Way co (like the town in TX), Wha co (sounds like taco), or Whacko (sounds like me

)

Paul

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Post #: 153

RE: Sig's new Waco SRE - 11/27/2007 12:08:34 AM

khodges

Posts: 5065
Joined: 7/3/2003
From: newton, NC, USA
Status: offline

quote:

ORIGINAL: SDCrashmaster

How do you guys pronounce Waco
Just curious, as I've heard it several ways.

Is it Way co (like the town in TX), Wha co (sounds like taco), or Whacko (sounds like me )

Paul

Wah-co, like Taco. Weaver Aircraft COmpany

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Club Saito #2, WACO Brotherhood #20. What other trouble can I get into?

(in reply to SDCrashmaster)

Post #: 154

RE: Sig's new Waco SRE - 11/27/2007 6:54:46 AM

SDCrashmaster

Posts: 3150
Joined: 1/15/2002
From: San Diego, CA, USA
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Thanks for the info khodges.

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Post #: 155

RE: Sig's new Waco SRE - 12/9/2007 11:21:00 PM

Didg

Posts: 196
Joined: 11/22/2005
From: Scotland, UNITED KINGDOM
Status: offline

A 14x6 APC will just fit into the supplied spinner.

Anyone know the answer to my question about flaps (above).

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Post #: 156

RE: Sig's new Waco SRE - 12/21/2007 12:55:48 AM

Didg

Posts: 196
Joined: 11/22/2005
From: Scotland, UNITED KINGDOM
Status: offline

Running in the RCV 91CD tomorow and then some test flights.
Still got the rigging wires to do, other than that it's finally done.
Woo Hoo!

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(in reply to Didg)

Post #: 157

RE: Sig's new Waco SRE - 12/23/2007 12:39:43 AM

jollyroger

Posts: 262
Joined: 3/10/2002
From: central Lake, MI, USA
Status: offline

Okay, I'm going to suggest a little heresy here.....this looks like a good electric conversion

.
E-Flight Power 110 or Axi would be real nice especially behind the radial sim.
It might take a little engineering to make a battery tray and hatch, but it can be done. My LHS has one and I might take a look at it when I'm there next time.
Oh yeah, the BF-109 and the new Mustang ARFs look pretty good too.
There must be somebody who has some fittings to make quick connects....maybe Nelson has something.
Now I sit back and await the flames.

cheers jollyroger

(in reply to Didg)

Post #: 158

RE: Sig's new Waco SRE - 1/1/2008 1:52:25 AM

kruzin55

Posts: 34
Joined: 6/18/2007
From: Bloomington, IL, USA
Status: offline

Could not help myself, my LHS had the Sig Waco SRE on sale for $329 and I took her home. I see several recommendations (including Sig's) for a Saito 100. But, I have a spare Zenoah G26E that I ended up not using on another plane. Can anyone provide advice on whether is will fit and fly this plane well. Also, I did not note any recommendations in the manual for the type of servos, in terms of the torque needed--JR ST47 Standards with 47oz/in or JR DS821 with 72oz/in? Any experience?

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Chris V, AMA #866637
WACO Brotherhood #83

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Post #: 159

RE: Sig's new Waco SRE - 1/1/2008 3:01:14 PM

Didg

Posts: 196
Joined: 11/22/2005
From: Scotland, UNITED KINGDOM
Status: offline

I used JR DS 811's all round if that's any help.

I'm sure it says in the manual, that standard servos are ok, although personally I would use servos with a reasonable amount of torque for the flaps and rudder, just to be on the safe side.

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Post #: 160

RE: Sig's new Waco SRE - 1/1/2008 3:11:23 PM

Stickbuilder

Posts: 5228
Joined: 11/20/2005
From: leesburg, FL, USA
Status: offline

quote:

ORIGINAL: kruzin55

Could not help myself, my LHS had the Sig Waco SRE on sale for $329 and I took her home. I see several recommendations (including Sig's) for a Saito 100. But, I have a spare Zenoah G26E that I ended up not using on another plane. Can anyone provide advice on whether is will fit and fly this plane well. Also, I did not note any recommendations in the manual for the type of servos, in terms of the torque needed--JR ST47 Standards with 47oz/in or JR DS821 with 72oz/in? Any experience?

Kruzin,

If your Cowl is at least 8.25" in diameter, then the G-26 should work. You may get into a problem with using the stock muffler, and if you go to one of the inverted mufflers (pitts style) you will still need to hog out the bottom rear of the cowl, and maybe even part of the fuselage. I am modifying my stock muffler for use in the YMF, by cutting off the lower front corner of the muffler and welding in a plate to close up the cutout. There is not a muffler available for the G-26 that I have been able to find that would allow me to use it unmodified. I would really like to have a muffler like the one that they show on one of the really cheap 26 gassers. It is shorter than the one that the G-26 comes with, and looks like an aluminum can muffler that mounts inverted. That one would work, but I don't want to use the little J-Tec box, due to sound constraints. I'll have to live with my modified stocker.

Bill, AMA 4720
WACO Brotherhood #1

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(in reply to kruzin55)

Post #: 161

RE: Sig's new Waco SRE - 1/1/2008 3:43:24 PM

Didg

Posts: 196
Joined: 11/22/2005
From: Scotland, UNITED KINGDOM
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Oh, my maiden flight went ok, but not without a bit of drama.

After running in the RCV 91CD as per instructions, 15 mins very rich at 6000 rpm, 15 mins cool down, set needles and run for another 15 mins at 6000.
Engine now had a nice low reliable idle, time for the first flight.

The guy who runs our club did the take off and trim.
Uneventful take off followed by a shout of "you'll have to trim the ailerons for me, they're so far out."
I had to dial in full trim for the Waco to fly level.

I then took the controls, flew a few circuits and manoeuvres. All felt fine apart from it wanting to squew out of loops and feeling very strange through the inverted phase of rolls. Straight inverted flight was fine.
I made an absolutely perfect 3 point landing (no flaps obviously). We then set about looking the plane over to see why so much trim was necessary. My mate looked down the model from the tail and spotted a badly warped top left wing straight away.

This was the first time I'd mounted the top wing, as I've not done the flying / landing wires yet, however I was surprised I'd not noticed it before, it's that badly warped. We then checked all other flying surfaces, all were bang on.

Also, I found that the N struts didn't line up to well on either wing, don't know if any of you have found this.

I'll contact Kavan in Germany, where I bought it, about the wing. It's too far gone to be straightened.
Other than that little setback, I'm very impressed.

If it flies that well with a badly warped wing, it'll be superb with a straight one.

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Post #: 162

RE: Sig's new Waco SRE - 1/3/2008 5:08:53 AM

silver.kiwi

Posts: 124
Joined: 9/12/2006
From: Saint Augustine, FL, USA
Status: offline

How well would you say the RCV 91 did powering your SIG Waco SRE? I have one on order and plan to power it with a Saito FA-100T. I believe that the Saito twin cylinder develops about the same power as the RCV 91 or slightly less and I have real concerns that my engine won't be up to the task. It swings a 14x6 prop about 9400 RPM. Given the flying weight of your plane and the RCV 91, are you satisfied with the performance? Thanks.

(in reply to Didg)

Post #: 163

RE: Sig's new Waco SRE - 1/3/2008 5:40:13 PM

Didg

Posts: 196
Joined: 11/22/2005
From: Scotland, UNITED KINGDOM
Status: offline

RCV engines take quite a bit of running in (around 2 hours), during which time the power will increase.
Mine has only had 30 mins of run time so far, but is already plenty powerful enough for this airframe.

The model is not as draggy as you'd think.
1/3rd throttle for cruising around, 1/4 throttle for slow flyby's, chop the throttle all the way and it'll virtually stop before gently stalling.
Full throttle gives nice big round loops, not egg shaped ones, and plenty of height for stall turns.

As I've said, my RCV still has more power to come and I'd be happy with the power it has just now.

Run in prop for the RCV 91CD is 14x6. I have an APC 14x6 fitted, which fits the kit supplied spinner and, at the moment, suits the airframe. Depending on how much more power I end up getting from the engine, I may try an APC 15x6 (as I have one in the tool box), though I've a feeling the 14x6 is what I'll end up using.

So, I'm very satisfied with the performance and it fits in the cowl with room to spare. The plane balanced spot on with this engine too.
I fitted a hex head servo screw into the main needle, so I have a 1/8" dia hole in the side of the cowl and use a hex driver to adjust the mixture.
I also used 1 OS insid