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Old Jan 18, 2011, 04:13 PM
Go FASST or go home...
Ben_E's Avatar
Bergen, Norway
Joined Nov 2002
3,156 Posts
Quote:
Originally Posted by _Sergey_ View Post
I am not sure how to start this discussion... I was trying to avoid it for a long time. But here it is... Please don't take it as criticism or anything like that

From looking at the halves of the fuselage there seem to be huge amount of extra foam that can be removed without sacrificing structural integrity. The rough guess is 20% or 150g of weight can be drilled out and cut off easily. I just want to ask your opinion what do you think about it?
Way too much work for little weight gain in my opinion. 150g on a 2500g ship will give marginal effect in my opinion. Keep it simple!

Ben_E
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Old Jan 18, 2011, 04:15 PM
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Lars N's Avatar
Norway, Akershus, As
Joined Apr 2007
162 Posts
Does anyone have pictrue of the finish model when its not assembled for flight. I would be nice to see how it possible to transport it..
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Old Jan 18, 2011, 04:56 PM
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Rookie2008's Avatar
Southern California
Joined Mar 2010
912 Posts
Here are some pictures at your request!
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Old Jan 19, 2011, 02:28 AM
Registered User
United States, TX, Grand Prairie
Joined Nov 2005
5,868 Posts
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Originally Posted by Rookie2008 View Post
I really don't think Mings planes need flaps at all if you come in at the right approach speed you will be fine she looks as if she will come down gracefully. Just my opinion.
What stops air traffic at the clubs is a slow flying airliner especially on landing.

I'll be putting flaps on mine and doing some nose up touchdowns
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Old Jan 19, 2011, 03:22 AM
Go FASST or go home...
Ben_E's Avatar
Bergen, Norway
Joined Nov 2002
3,156 Posts
[QUOTE=erh7771;17148697]What stops air traffic at the clubs is a slow flying airliner especially on landing.

I'll be putting flaps on mine and doing some nose up touchdowns[/QUOTE

Not quite the same but similar, my E-flite airliner (B777) can be flown immensely slow on finals if you do your things right on approach. My plane weights in at close to 1,9kg so the wingloading should be higher than the 737. And Im not using flaps at all and can land with the nose high and drawing airliner attention

Modding flaps on the 737 is difficult due to the positioning of the retracts unit. Too much modification with little gain in flight performance in my opinion.

Ben_E
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Old Jan 19, 2011, 06:51 AM
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Lars N's Avatar
Norway, Akershus, As
Joined Apr 2007
162 Posts
Wich battery should I use to get some flight time when using 4S setup? How many mAh?
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Old Jan 19, 2011, 06:55 AM
Ming's Avatar
Hong Kong
Joined Jun 2002
4,712 Posts
One of our test pilot use 2 pcs of 5000mAh 4S.
But you need a good motor like Scorpion HKII2221-8(3600kv).

Ming Lou
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Old Jan 19, 2011, 06:58 AM
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Lars N's Avatar
Norway, Akershus, As
Joined Apr 2007
162 Posts
Quote:
Originally Posted by Ming View Post
One of our test pilot use 2 pcs of 5000mAh 4S.
But you need a good motor like Scorpion HKII2221-8(3600kv).

Ming Lou
Are you using both batteri (10Ah)? How long flightime do he have then?
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Old Jan 19, 2011, 07:27 AM
Ming's Avatar
Hong Kong
Joined Jun 2002
4,712 Posts
Flight time around 5 mins by 1/2 of throttle.

Ming Lou
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Old Jan 19, 2011, 07:34 AM
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Lars N's Avatar
Norway, Akershus, As
Joined Apr 2007
162 Posts
Quote:
Originally Posted by Ming View Post
Flight time around 5 mins by 1/2 of throttle.

Ming Lou
Wich package with retracts, fans og engine for 4s do you reccomend?
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Old Jan 19, 2011, 07:45 AM
Ming's Avatar
Hong Kong
Joined Jun 2002
4,712 Posts
Our servoless retract, CF 70mm EDF unit, Scorpion HKII222-8 motor and a 35 or 45A Scorpion ESC plus Hyperion CX 5000 4S battery is perfect!(in case you really need 4S power). All our test pilot feel 3S is fine for this airliner and report 4S is over power.

Ming Lou
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Old Jan 19, 2011, 07:52 AM
Ugly planes do not fly
_Sergey_'s Avatar
USA, GA, Alpharetta
Joined Mar 2007
1,689 Posts
Quote:
Originally Posted by Ming View Post
One of our test pilot use 2 pcs of 5000mAh 4S.
But you need a good motor like Scorpion HKII2221-8(3600kv).

Ming Lou
Are you sure there are two 5000 mAh batteries for 5 minutes flight and not 5000 mAh total? This sounds wrong.
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Old Jan 19, 2011, 07:53 AM
Ming's Avatar
Hong Kong
Joined Jun 2002
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We land it after 5 mins, sure it can fly much longer.

Ming
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Old Jan 19, 2011, 08:03 AM
Screw the wind, let's fly!
Naval Warfare's Avatar
Lawrenceville, Ga
Joined Feb 2008
2,722 Posts
Quote:
Originally Posted by _Sergey_ View Post
Are you sure there are two 5000 mAh batteries for 5 minutes flight and not 5000 mAh total? This sounds wrong.
2x 5000 10k mah total?? or 2 2500totalling 5000?
10k sounds impossible
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