Extreme Speed Prop Planes Discuss the need for speed with fast prop planes (Screamin Demon, Diamond Dust, Shrikes or any REAL sound breakin'''' plane)

webra Speed .55GT Aero

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Old 03-08-2007, 11:49 AM
  #1  
BigBadJon
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Default webra Speed .55GT Aero

got my hands on a webrea speed .55 GT engine. anyone know anything about it? more to torque or top speed?
found it in a box in a yardsale. looks new. no muffler heh
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Old 03-08-2007, 12:57 PM
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Default RE: webra Speed .55GT Aero

Hi!
It's a very good engine..that's it!
All modern engines are about the same powerwise , there isn't any such thing as one being a torque engine and the other a speed engine...if we speak sport engines that is.
Of course pylonracing engines like MB , IR, Nelson, and Jett play in another ball league. They are speed engines!
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Old 03-08-2007, 08:05 PM
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Default RE: webra Speed .55GT Aero

The Webra 55 is high performance sport motor. It is more for speed (not full race) in contrast to the O.S. 55 which has low end torque and can pull large lumber (3D & sport).
I pulled this from my post 9 months ago:

The Webra 55 will turn a APC 9X10 @ 16,400 RPM with a red Jett muffler on 15% nitro mounted on a Diamond Dust. I get the best glow plug life using a Fox standard/short type (weird). A Hobbico silicone exhaust deflector on the Jett muffler gave me 200 more RPM on the ground. BREAK-IN THIS ENGINE CAREFULLY per instuctions on low nitro. I used the above prop & muffler for break- in on two engines no problems. Funny thing, it won't run as well with a 9x9 in the air on a Mac's tuned pipes or Jett muffler, don't bother. It seems to like the load of the 9x10 prop. On all three of my engines, the clip that keeps the high speed needle from turning failed so I slid a piece of fuel tubing over it hold the setting.

Update:
Some months ago one of the engines had a crankshaft failure, strange, it had the least abuse and run time.
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Old 03-08-2007, 08:07 PM
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Default RE: webra Speed .55GT Aero

I agree. Torque is mainly a function of stroke and secondarily a function of compression. There is only so much torque that you will get from an engine with a half inch stroke. In most engine-speeak, we are playing with horse power engines that thrive on rpm.
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Old 06-05-2007, 05:43 PM
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Default RE: webra Speed .55GT Aero

My buddy just got a Webra 55GT and the place he got it from said it would probably be the last one they could get. What happened? Have they stopped inporting it?-------Revver Bro#164
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Old 06-27-2007, 12:34 AM
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Default RE: webra Speed .55GT Aero

He probably got it from Horizon,they no longer carry them.Swift electronics in Winnepeg, Canada is the only importer in North America at present.
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Old 06-27-2007, 06:36 AM
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Default RE: webra Speed .55GT Aero

http://www.webra-austria.at/motor.php?lang=EN

They will ship to you for $192.10 including shipping.

Also www.redneckrc.com list them but I have not received a email response back from them on their availability.

I would just order from Austria.
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Old 06-27-2007, 11:16 PM
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Default RE: webra Speed .55GT Aero

I contacted webra at the above web address and got this reply:

Dear Mr. Benton,

Sorry, to this time try to help us on the US market is our Canadian agent. If you are interested
for the Speed 40 please contact

Swift Electronics
735 Park Blvd.S.
Winnipeg, MP, R3P 1B7

Phone: 001 204 885 1860

Fax: 001 204 944 0170

mailto:cswartz@mts.net




Best regards - Yours Webra Sales department

WEBRA Modellmotoren GmbH & Co. KG
Eichengasse 9
A-2551 ENZESFELD / AUSTRIA

phone: +43 (0) 2256 81122 0
fax : +43 (0) 2256 82306

mailto:webra@webra-austria.at

http://www.webra-austria.at


I ordered a speed 40 for $127.50 plus postage,not sure of the price for the 55.Cliff is a real easy guy to deal with.
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Old 06-28-2007, 06:41 AM
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brewski
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Default RE: webra Speed .55GT Aero

Her is the email from Austria this past Monday:

we can offer you
>
> 1 pc engine Speed 55 GT AERO -1026GT price Euro 139,--
> + airmailcharges Euro 21,--
> = Total Euro 160,--
>
> Payment: by Visa card (we need card No. and cvv No. and expir.date)
> or advance payment by bank transfer
>
> also we need your address
>
> best regards
> Silvia
> Webra-Austria
>
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Old 06-28-2007, 08:00 AM
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Default RE: webra Speed .55GT Aero

With shipping that's about $215 US. A bit pricy for a motor that you have to wait for and the muffler is not included (not that I would use it). I was getting them last year for $180 if I remember correctly. They will loose the US market on price. Shame, It's a great engine.
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Old 06-28-2007, 08:56 AM
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brewski
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Default RE: webra Speed .55GT Aero

YOu are right, that is steep. I bought the last one that Cheif Aircraft had last month for $182. I love the engine. Very strong.
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Old 06-28-2007, 10:29 AM
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Isaac F
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Default RE: webra Speed .55GT Aero

Horizon Hobbys is droping the Webra line for the US market? Or is just that Horizon will only carry a few webra models?

Do the Canadian Swift Electronics has a web page?

THX

Isaac
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Old 06-28-2007, 12:05 PM
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Default RE: webra Speed .55GT Aero

I contacted Swift Electronics with the email provided by Webra"cswartz@mts.net" .I got an almost immediate response,Cliff is very easy to deal with,sending my engine with muffler and shims COD.
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Old 06-28-2007, 11:22 PM
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Default RE: webra Speed .55GT Aero

What did it cost from swift in $US? Shipped.
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Old 06-29-2007, 07:45 PM
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Default RE: webra Speed .55GT Aero

.
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Old 07-01-2007, 08:12 AM
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Default RE: webra Speed .55GT Aero

not sure of the price for the 55 from Swift.I got a speed 40 with muffler for $127us plus shipping.
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Old 07-12-2007, 08:42 AM
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Default RE: webra Speed .55GT Aero


Here is the contact info for Swift Electronics- E-mail <swift@mts.net> They do not have a website, so you have to go to Webra's website to view the products and get specs. Swift's snailmail : 735 Park Blvd.S., Winnipeg, MB, R3P 1B7, Phone 204 885 1860, FAX 204 944 0170.
They have most if not all Webra's engines in stock along with parts, even for out of production engines.
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Old 11-17-2008, 10:33 PM
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Default RE: webra Speed .55GT Aero

freakingfast,

You are a Webra 55 guy. Have you seen this before? I never even got 3 gallons through this one. Pretty disappointing. I was just tooling along when the rod went through the crankcase. The pin broke off of the crank.
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Old 11-17-2008, 11:04 PM
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Default RE: webra Speed .55GT Aero

What % nitro were you running?
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Old 11-17-2008, 11:31 PM
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Default RE: webra Speed .55GT Aero

Is that the NIB engine I sold you a little over year ago? Dang dat gota hurt!
No, I've seen the crank snap at the port, one of mine and another guys, but never seen a crank pin go away.
It was my belief that the cranks snapped because of too much nitro. I've ran the snot out of the others and no problems. If you didn’t abuse it like running more than 10% or hydro-lock, etc. than it looks like Webras 55's are hit and miss in metallurgy /machining / heat treating.
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Old 11-18-2008, 03:44 AM
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Default RE: webra Speed .55GT Aero

I never ran more than 10% nitro. Never as hydrolocked that I remember but even that should not cause this. I can tell by the break that it has actually been cracked for quiet some time before letting go.

This is the engine I bought from Chief Aircraft just before the one you sent me so it is the same age. What really bites is that the two parts are as much as a new motor.
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Old 11-18-2008, 08:37 AM
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Default RE: webra Speed .55GT Aero

I'm a machinist and over the last 5 years I have seen the origin and quality in the material we get in is inconsistent especially in heat treatable materials. The rumor is that the good stuff is going to China as they are the big spender and want the best. No doubt that Austria may have the same dilemma.

Sorry to see power house die a meaningless death, now a strait in to concrete on video that’s meaningful.
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Old 11-18-2008, 09:18 AM
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Default RE: webra Speed .55GT Aero

On something like this, is the pin taken to a certain level of hardness at the expense of ductility? Do they apply a hard pin to the crank, or is the pin machined with the crank?
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Old 11-18-2008, 12:06 PM
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Default RE: webra Speed .55GT Aero


ORIGINAL: combatpigg

On something like this, is the pin taken to a certain level of hardness at the expense of ductility? Do they apply a hard pin to the crank, or is the pin machined with the crank?
Well, the pin has to be fairly hard to be a good wear surface and allow finish grinding to a polish. This always comes at the expense of ductility and toughness. BTW, toughness is the problem here, not ductility. Toughness helps prevent cracks from propagating after they start, ductility allows the material to deform significantly before it fails.

Good question if the pin is integral or a press fit piece. Can you tell how it was manufactured, Brewski?


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Old 11-18-2008, 12:24 PM
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Default RE: webra Speed .55GT Aero

I could be wrong but it looks integral.
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