Ultrasport40 - twin  
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Ultrasport40 - twin - 2/3/2006 9:14:44 AM   
Yury



Posts: 25
Joined: 11/19/2002
From: Saint Petersburg, RUSSIA
Status: offline 		It’s my scratch building Ultrasport 40 twin ready to install radio. I started building November 2005. This weekend I’m planning to install radio.

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RE: Ultrasport40 - twin - 2/3/2006 9:50:15 AM   
DVM100


 

Posts: 195
Joined: 9/17/2005
From: Canberra , Australian Capital Territory, AUSTRALIA
Status: offline 		G'day Yury, looks great.What size engines and wingspan? Dave

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RE: Ultrasport40 - twin - 2/3/2006 10:07:39 AM   
Yury



Posts: 25
Joined: 11/19/2002
From: Saint Petersburg, RUSSIA
Status: offline 		Two Magnums 30 4 stroke.
Wingspan 1400 mm.
Weight 2700 grms.

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RE: Ultrasport40 - twin - 2/3/2006 3:38:07 PM   
Gremlin Castle


 

Posts: 1222
Joined: 2/9/2004
From: Arlington, TX, USA
Status: offline 		That is a very nice looking twin conversion. It should be a great performer with decent landing characteristics.

If I can get the scanner working I will try to post a picture of a very similar outline ship that I built in the early seventies using K&B 40s.

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RE: Ultrasport40 - twin - 2/7/2006 3:14:31 AM   
Wayne22



Posts: 4310
Joined: 4/10/2002
From: Edmonton, AB, CANADA
Status: offline 		Looks great Yury! I particularly like the nose.....

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RE: Ultrasport40 - twin - 2/18/2006 8:38:45 PM   
sdcranford


 

Posts: 277
Joined: 6/23/2005
From: Willard, MO, USA
Status: offline 		I love it, the US is my all time fav. sport flier. I have 1 US1000 in the closet I need to build
and one US1000 in the garage in pieces from a crash that I need to repair.

Was this off of plans or did you do it yourself? Please let me know!

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RE: Ultrasport40 - twin - 2/18/2006 9:33:05 PM   
desmobob



Posts: 594
Joined: 12/2/2001
From: Whitehall, NY, USA
Status: offline 		Yury,

That looks great! I'm waiting for Spring weather to fly my first twin, a Hobbico TwinStar with Super Tigre .34 Heli engines. I'm planning to build a SPAD Twin DPS before flying season gets here, too. It will be powered by Magnum .52 four-strokes.

Good luck with your new airplane,
desmobob

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RE: Ultrasport40 - twin - 2/20/2006 6:51:40 AM   
Yury



Posts: 25
Joined: 11/19/2002
From: Saint Petersburg, RUSSIA
Status: offline 		sdcranford
The kit plan US40 was used with some modification as it’s twin.

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RE: Ultrasport40 - twin - 2/20/2006 1:36:54 PM   
sdcranford


 

Posts: 277
Joined: 6/23/2005
From: Willard, MO, USA
Status: offline 		Very cool, did you use the original US40 kit and modify it or did you scratch build it? I am very
interested in twins and love the US kits. Thank you!

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RE: Ultrasport40 - twin - 2/20/2006 2:11:03 PM   
Yury



Posts: 25
Joined: 11/19/2002
From: Saint Petersburg, RUSSIA
Status: offline 		For building twin I used only drawing from original kit.
I have US40 with OS70 in front from kit.

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RE: Ultrasport40 - twin - 6/6/2006 12:03:31 PM   
Yury



Posts: 25
Joined: 11/19/2002
From: Saint Petersburg, RUSSIA
Status: offline 		This weekend I had three flies on this plane. The sound was very impressive. On last approach the right engine quitted when I had tried to apply some throttle from idle. The plane started to turn to the right slowly. The throttle was brought to idle and plane landed safety.
Here some photos were made before the first take off.

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RE: Ultrasport40 - twin - 6/6/2006 12:50:42 PM   
twinman



Posts: 1628
Joined: 1/19/2002
From: Katy, TX, USA
Status: offline 		Hi Yury,
Welcome to twinsanity. I did the same conversion on the US 1000 and loved it. These are great planes to kit bash.
Keep up the good work.
Twinman

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RE: Ultrasport40 - twin - 6/6/2006 5:55:36 PM   
William Robison



Posts: 20269
Joined: 11/10/2002
From: Mary Esther, Florida, FL, USA
Status: offline 		Yury:

Glad it went well.

And I welcome you also; we need all the help we can get.

Bill.


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RE: Ultrasport40 - twin - 6/7/2006 12:42:19 AM   
twinman



Posts: 1628
Joined: 1/19/2002
From: Katy, TX, USA
Status: offline 		Yury
Can you tell us what modifications you made to the original plane for others reference and Ideas?
On my US 1000, I flew it with the original control surfaces and was not pleased with resonse due to increased weight, Increased the ailerons 25%, rudder almost 50% to Ultimate style, and added wing plates or dams for increased lift.....an YES BILL, I "Slightly" increased the nose size and shape!!
Twinman

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RE: Ultrasport40 - twin - 6/7/2006 9:08:06 AM   
Yury



Posts: 25
Joined: 11/19/2002
From: Saint Petersburg, RUSSIA
Status: offline 		Thanks a lot for your post.
I made such modification than I scratch built the plane.
The fin and rudder were increased near 50%. The fin, rudder, stab and elevator were made from strips.
Fus was built with out plywood almost. It has plywood around wing sable only. The fus was built with out solid pieces of balsa wood. ¼ balsa its the thickest balsa on fus.
The wing was built according draft. I added nacelles only and installed two aileron's servos. The ailerons have building structure.
To keep point of balance the elevator and rudder servos were moved to the tail.
In result the weight of twin is the same as kit building US40 with OS70 in front.

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