Ultrasport40 - twin
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Ultrasport40 - twin
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
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.
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
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!
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!
#7
RE: Ultrasport40 - twin
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
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
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.
Here some photos were made before the first take off.
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RE: Ultrasport40 - twin
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
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
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.
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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RE: Ultrasport40 - twin
This Sunday I had a lot of fun flying this twin. The left engine quieted in the air one time. I noticed this situation than I could not turn to the right. Model went away from me. I reduced throttle to idle on remained engine and made landing as dead stick one.
My friend made some photo with Pentax DSLR. I hope it will be interesting.
Take off.
My friend made some photo with Pentax DSLR. I hope it will be interesting.
Take off.