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YA Skyhawk and Wren 44 Gold Perfect together - 4/2/2012 9:14 PM   
Mark 5


 

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From: lincoln park, NJ, USA
Status: offline 		Here are some pictures of my Skyhawk.
Will be flying it next week.

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RE: YA Skyhawk and Wren 44 Gold Perfect together - 4/2/2012 9:31 PM   
YellowAircraft



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Status: offline 		Nice!

How much fuel are you carrying? No bellmouth on the pipe?

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RE: YA Skyhawk and Wren 44 Gold Perfect together - 4/2/2012 10:49 PM   
hooker53



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Status: offline 		Very nice job and clean install. Be sure to get some vids of your flights.

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RE: YA Skyhawk and Wren 44 Gold Perfect together - 4/3/2012 2:39 AM   
jetspud



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Status: offline 		Looks like a good home for my 44 gold. Lets know the details when fly it

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RE: YA Skyhawk and Wren 44 Gold Perfect together - 4/3/2012 3:31 AM   
Mark 5


 

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From: lincoln park, NJ, USA
Status: offline 		Thanks for the compliments, I will try to get some video next week. Shaun can you tell me the what C.G. you used. The instruction says it should be 12 1/2" forward of the trailing edge at the wing root with fuel tanks full. What is the C.G. with empty tanks? I have a total of 40 ounces of fuel, two 10 ounnce tanks in front of the turbine and two 10 ounce tanks on either side of the turbine. The pipe was made by my friend Tino from Baltimore. It is very light and the wren 44 gold runs very cool with it.

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RE: YA Skyhawk and Wren 44 Gold Perfect together - 4/3/2012 5:01 AM   
yeahbaby



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Status: offline 		dude!!! I'm psyched to see someone else out there with the YA A4 and wren 44 combo. I've got one on the shelf that just needs a motor.

can't wait to see the result


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RE: YA Skyhawk and Wren 44 Gold Perfect together - 4/3/2012 4:28 PM   
JeffH


 

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Status: offline 		Your left upper tank looks to be a Sullivan Flex tank(clearish vs. your right tank that is normal white nylon). They are rated for Glow fuel only. I know that gasoline will destroy them, I am not sure about kerosene.

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RE: YA Skyhawk and Wren 44 Gold Perfect together - 4/3/2012 6:35 PM   
jetspud



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Status: offline 		Buck bring that A-4 to mississippi we can put my 44 in it and fly it all weekend.

David

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RE: YA Skyhawk and Wren 44 Gold Perfect together - 4/3/2012 6:48 PM   
yeahbaby



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Status: offline 		nice!!!! I just may do that amigo.

I can't wait for Mark5 to report back on how he the performance of the bird.

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RE: YA Skyhawk and Wren 44 Gold Perfect together - 4/5/2012 3:00 PM   
Mark 5


 

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Status: offline 		Hello JeffH, you are correct, the sullivan flex tank is rated for glow fuel only. Good eyes. You saved me a lot of headaches. Thank you! Mark.

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RE: YA Skyhawk and Wren 44 Gold Perfect together - 4/5/2012 3:37 PM   
YellowAircraft



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Status: offline 		Hi,

Use the 12.5" location. That will work fine if your tanks stay in the location you have them.

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RE: YA Skyhawk and Wren 44 Gold Perfect together - 4/6/2012 9:55 PM   
Mark 5


 

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Status: offline 		Thank you Shaun. Is that measurement with the tanks full or empty.

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RE: YA Skyhawk and Wren 44 Gold Perfect together - 4/7/2012 4:42 AM   
YellowAircraft



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Status: offline 		Hi,

Your tanks appear to be centered on or about the CG, so it shouldn't matter. Measure the CG location and mark it, then verify that the tank is centered on it, then measure it empty. Gear DOWN.

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RE: YA Skyhawk and Wren 44 Gold Perfect together - 4/7/2012 6:06 AM   
Mark 5


 

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From: lincoln park, NJ, USA
Status: offline 		Thank you Shaun. I love this little jet. It's small enough to fit in my SUV with the wings on and large enough to see in flight. I hope the Wren44 has enough power to lift it off my grass field.

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RE: YA Skyhawk and Wren 44 Gold Perfect together - 9/16/2012 7:12 AM   
Mark 5


 

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Status: offline 		I finally got the chance to put two flights on the Skyhawk. The take off roll is similar to the ducted fan Skyhawk,but once in the air the wren 44 has better vertical, however the top speed is also similar to the ducted fan Skyhawk. The Skyhawk is also very stable and easy to fly which surprised me. I do not think that my Skyhawk has enough power to take off of grass which was my main concern.

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RE: YA Skyhawk and Wren 44 Gold Perfect together - 9/16/2012 12:14 PM   
Dr Honda



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Status: offline 		What's the ready to fly weight? I'm just finishing up a T-45... and I'm planing on flying it from grass.

One thing... I know they are a little pricey... but if you change to the Wren pipe... they claim a 5% thrust increase.


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RE: YA Skyhawk and Wren 44 Gold Perfect together - 9/16/2012 2:52 PM   
Mark 5


 

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Status: offline 		Hi Tony, the Skyhawk weighs 12 and 3/4 LBS without fuel. I dont know how guys are getting them under 11 LBS. This combo flies very scale like at a little above 1/2 throttle and the light wing loding seems to help when landing. Mark

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RE: YA Skyhawk and Wren 44 Gold Perfect together - 9/16/2012 3:12 PM   
Bob_B



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Status: offline 		Mark superb effort on the skyhawk.

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RE: YA Skyhawk and Wren 44 Gold Perfect together - 9/16/2012 7:04 PM   
Gordon W



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From: BrauntonDevon, UNITED KINGDOM
Status: online 		Mark, how did you choose the distance between the 44 nozzle and the tailpipe? I have a couple of Wren tailpipes in use with 44 Golds, and have set them at Wren's specified distance. However, someone gave me a tailpipe which is similar to yours, except the entrance is flared ever so slightly. I'd like to use the pipe in a model to save the expense of buying another Wren pipe, but can't decide how far to set it from the 44 nozzle.

Thanks

Gordon

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RE: YA Skyhawk and Wren 44 Gold Perfect together - 9/16/2012 9:14 PM   
Vettster


 

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Status: offline 		Very Nice set up Mark.. It even pre heats the fuel for you Good luck with the Maiden.

If anyone is selling a Wren 44 Gold.. I am interested

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RE: YA Skyhawk and Wren 44 Gold Perfect together - 9/16/2012 11:01 PM   
yeahbaby



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Status: offline 		Nice job with your 44 amigo. I look forward to adding this motor to my stable

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RE: YA Skyhawk and Wren 44 Gold Perfect together - 9/16/2012 11:25 PM   
Dr Honda



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quote:

ORIGINAL: Mark 5

Hi Tony, the Skyhawk weighs 12 and 3/4 LBS without fuel. I dont know how guys are getting them under 11 LBS. This combo flies very scale like at a little above 1/2 throttle and the light wing loding seems to help when landing. Mark



Thanks for the info. I was worried about the 44 gold, and general grass flying. So... with fuel... you are at about 14 Lbs I guess. I'm projecting my T-45 at only being at 8~9 Lbs with fuel. I also left the retracts out, and put on 3" tires. (lol) I'l be the only guy with a "Tundra" T-45.





quote:

ORIGINAL: Vettster

If anyone is selling a Wren 44 Gold.. I am interested



I had my 44 for sale for a few months. People were only offering $500... so I pulled it. They don't come up too often on the used, but hang in there... you'll find one.


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RE: YA Skyhawk and Wren 44 Gold Perfect together - 9/17/2012 2:21 AM   
Vettster


 

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Status: offline 		$500 bucks?? Must have been a bunch of EDF'ers thinking they could play with the big boys for the same price..lol

Im not in hurry for one.. Winter will soon be here

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RE: YA Skyhawk and Wren 44 Gold Perfect together - 9/17/2012 3:11 AM   
Mark 5


 

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Status: offline 		Gordon, my Wren 44 gold is about 3/4 of an inch from the pipe. Tony if your T-45 is only 8 LBS ,it will be a rocket with the Wren 44.

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RE: YA Skyhawk and Wren 44 Gold Perfect together - 9/17/2012 3:22 AM   
Dr Honda



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quote:

ORIGINAL: Vettster

$500 bucks?? Must have been a bunch of EDF'ers thinking they could play with the big boys for the same price..lol

Im not in hurry for one.. Winter will soon be here



That's what I was thinking too.

I Picked up a boat project for the fam... and I was going to sell my 44 to fund the rebuild. Plus... it was sitting on the shelf for over a year. So I posted it. But, after getting the low offers, and selling a few other things... I decided to finish my T-45 project.

At this point... I'm glad I kept it... but I am shocked that it didn't sell. (FYI, it was posted for $1500 with new bearings, and a wren pipe. AND, it only had 2 hrs on the fuel pump, and temp prob)


quote:

ORIGINAL: Mark 5

Tony if your T-45 is only 8 LBS ,it will be a rocket with the Wren 44.



I'm hopping to have it done tomorrow. So... I'll get a weight on it. I'm thinking about turning down the thrust a little. I don't need +1:1 on a little jet. (lol) I think Ron told me that 175K rpm would be 7#.


I guess I took it a little off subject. Sorry. I'll shut-up now.


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