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Search: Posts Made By: sportflyer
Forum: Power Systems Today, 06:03 PM
Replies: 40
Views: 541
Posted By sportflyer
The OV-10 ARF was originally designed for 2X ...

The OV-10 ARF was originally designed for 2X .25 to .32 2 cycle wet engine. That why I chose the motors indicated above.
Forum: Power Systems Today, 04:55 PM
Replies: 40
Views: 541
Posted By sportflyer
Hey guys , I have been running Motor Calc and...

Hey guys , I have been running Motor Calc and Ecalc over the last few days comparing the Rimfire 42-40-1000 ( Rimfire .25) to the Hacker A30-10L ( Turnigy SK3-3542-1185 ) everything else being...
Forum: Power Systems Yesterday, 04:04 PM
Replies: 22
Views: 274
Posted By sportflyer
No it does not , but I can add them inboard of...

No it does not , but I can add them inboard of the nacelles . I was seriously thinking either regular flaps or split flaps. I was wondering whether 20% of the chord width is enough ? I just hate to...
Forum: Power Systems Yesterday, 12:23 AM
Replies: 40
Views: 541
Posted By sportflyer
Actually I was thinking of using two 1100mah LIFE...

Actually I was thinking of using two 1100mah LIFE batteries one for each receiver and their associated servos. However I am running into weight issues so I think I will use the internal ESC's BEC ....
Forum: Power Systems 10-28-2014, 09:08 PM
Replies: 40
Views: 541
Posted By sportflyer
These Caps are Nichicon low ESR caps I purchased...

These Caps are Nichicon low ESR caps I purchased from Digikey.

I was planning on Turnigy SK3-3542-1185 for motors ( identical to Hacker A30-10L ) and have not decided in ESC yet...probably ZTW...
Forum: Power Systems 10-28-2014, 03:22 PM
Replies: 40
Views: 541
Posted By sportflyer
Plan to use one motor , one esc and one ...

Plan to use one motor , one esc and one receiver in each of the 2 Nacelles. The receiver in each Nacelle will power the rudder, aileron and elevator on its own side. Steerable nose wheel signal...
Forum: Power Systems 10-28-2014, 03:07 AM
Replies: 22
Views: 274
Posted By sportflyer
Something similar :...

Something similar : http://electrodynam.com/rc/index.shtml

I found it accidentally whilst perusing the Nov issue of model Aviation .
Forum: Power Systems 10-28-2014, 02:50 AM
Replies: 22
Views: 274
Posted By sportflyer
Definitely will check out current draw etc before...

Definitely will check out current draw etc before flying. I would like to use a stronger motor but that adds more weight etc so could be diminishing returns. I could shave off some weight but that...
Forum: Power Systems 10-28-2014, 12:37 AM
Replies: 22
Views: 274
Posted By sportflyer
Only reason to chose 3S is I have a bunch of 3S...

Only reason to chose 3S is I have a bunch of 3S 5000mah that I use . They will share duty with my Tcraft ( 3S2S =6S ) .

I might consider 4S but then I need to invest in more batteries just for...
Forum: Power Systems 10-27-2014, 07:46 PM
Replies: 40
Views: 541
Posted By sportflyer
I plan to use 2 receivers one in each nacelle to...

I plan to use 2 receivers one in each nacelle to simplify wiring . I don't think I need to use Schottky diodes in this case. I will probably use the ESC internal 5A SBEC since the servos are Hitec...
Forum: Power Systems 10-27-2014, 05:41 PM
Replies: 22
Views: 274
Posted By sportflyer
Yeah, this is going to fly like a warbird . I...

Yeah, this is going to fly like a warbird . I need to be careful to check stall speed etc . I did beef up the wing joints with additional Play webbing between the spars. Someone build this same...
Forum: Power Systems 10-27-2014, 05:33 PM
Replies: 40
Views: 541
Posted By sportflyer
Now that is super light . My Hobby Hanger 52 inch...

Now that is super light . My Hobby Hanger 52 inch span ARF is going to have AUW 6.6 lbs .The weight is mainly because it was designed for wet engines and so too much ply vs balsa. I am converting it...
Forum: Power Systems 10-27-2014, 03:01 PM
Replies: 22
Views: 274
Posted By sportflyer
Did you enter 2 motors and 2 ESC ? This is a...

Did you enter 2 motors and 2 ESC ? This is a twin engine plane . If using 2 motors , I get 135W/lb and climb rate of 1680ft/min on 10X6 . Even better using 10X7. I used 5000mah because there are 2...
Forum: Power Systems 10-27-2014, 05:12 AM
Replies: 40
Views: 541
Posted By sportflyer
BTW what is the AUW of your version and its wing...

BTW what is the AUW of your version and its wing loading? Tks
Forum: Power Systems 10-27-2014, 05:07 AM
Replies: 22
Views: 274
Posted By sportflyer
Here is the plane :...

Here is the plane : http://www.hobbyhangar.com/hhbaseline_002.htm

The weight of all parts excluding the 2 motors, ESC and Battery is 80 oz
So I estimate AUW is around 107 oz . Yes stall speed is...
Forum: Power Systems 10-26-2014, 06:18 PM
Replies: 22
Views: 274
Posted By sportflyer
I rechecked motorcalc and find that in all...

I rechecked motorcalc and find that in all instances the pitch speed is less than 1.5X Airspeed for the props 10X6 and 10X7 . I think I will try both props starting with 10x6. Tks
Forum: Power Systems 10-26-2014, 04:51 PM
Replies: 22
Views: 274
Posted By sportflyer
Help me interpret Motorcalc opinion

I was using Motorcalc to check on some of my motor /prop/Esc choices for an OV-10. The motor I used as Hacker A30-10L , Esc 60A, Battery 3s 5000mah 20C

Plane : Span=52 , Wing Area =532 sq in ....
Forum: Power Systems 10-24-2014, 09:45 PM
Replies: 20
Views: 287
Posted By sportflyer
To be safe , I always have my TX on before I...

To be safe , I always have my TX on before I turn on the receiver ( separate battery ), then plug in the motor battery . Although I have flown R/C planes ( with wet engines) for a very long time ,...
Forum: Power Systems 10-24-2014, 03:27 PM
Replies: 20
Views: 287
Posted By sportflyer
The above answers are what I am looking for .ie...

The above answers are what I am looking for .ie will the motor be armed accidentally due to initialization timing differences when both motor ESC and UBEC are turned on simultaneously .
Forum: Power Systems 10-24-2014, 03:23 PM
Replies: 20
Views: 287
Posted By sportflyer
I use a switch on the TX as arming switch for CC...

I use a switch on the TX as arming switch for CC ESC . When that switch is turned off , the throttle output will never go to minimum ( I set it at 50%) even when the TX throttle stick is at lowest...
Forum: Power Systems 10-24-2014, 05:43 AM
Replies: 20
Views: 287
Posted By sportflyer
Can a motor be accidentally armed with a UBEC ?

I have been using a separate receiver batteries instead of a UBEC with my larger planes. I have a small Addiction plane using the BEC that is part of the ESC to power the receiver and servos.

The...
Forum: Power Systems 10-24-2014, 02:03 AM
Replies: 2
Views: 112
Posted By sportflyer
I understand the issue with Y splitters. I had...

I understand the issue with Y splitters. I had the problem with them in my biplane when I "Y ed" the 4 wing servos into 2 channels. They caused a jitter on one of the wing servos I could not solve....
Forum: Power Systems 10-24-2014, 12:56 AM
Replies: 2
Views: 112
Posted By sportflyer
One UBEC for 2 receivers

I am planning to use 2 receivers for my twin . Is it OK to use one 10A UBEC for the 2 receivers and the servos ( 6 hitec HS-85MG) . I thought that this should save weight , $ and complexity instead...
Forum: Power Systems 10-20-2014, 03:29 PM
Replies: 0
Views: 108
Posted By sportflyer
Differences between Turnigy motors

What are the differences between the NTM, SK3 and XP motors in terms of reliability and quality ?

I am considering 2 X 3542 motor for a 52 inch OV-10 weighing 7-8 lbs Probably use a 9X7.5E prop...
Forum: RC Radios, Transmitters, Receivers, Servos, gyros 10-02-2014, 03:21 PM
Replies: 11
Views: 180
Posted By sportflyer
You are right . No point to switch from A9 to...

You are right . No point to switch from A9 to Teranis unless your current TX is dead. Too much effort . I used to be a Futaba fan , used them for years till I stumbled on the EVO9 . I liked the EVO...
Forum: RC Radios, Transmitters, Receivers, Servos, gyros 10-01-2014, 11:57 PM
Replies: 24
Views: 1,056
Posted By sportflyer
Even though I don't own a Teranis, TX, I went...

Even though I don't own a Teranis, TX, I went through the programming instructions and concluded that the programming logic is very similar to my TX which is a Multiplex Royal EVO 9 . Basically...
Forum: RC Radios, Transmitters, Receivers, Servos, gyros 10-01-2014, 11:40 PM
Replies: 11
Views: 180
Posted By sportflyer
These are my first clone receivers. I believed...

These are my first clone receivers. I believed they are FRSKY designs with 3rd party firmware to make them compatible with Hitec. They even have a version that is compatible with both Hitec and...
Forum: RC Radios, Transmitters, Receivers, Servos, gyros 10-01-2014, 09:03 PM
Replies: 11
Views: 180
Posted By sportflyer
Just received 2 Minima compatible 8 ch receivers...

Just received 2 Minima compatible 8 ch receivers from Aloft Hobbies. They bind almost instantaneously . When binding was complete the super fast blinking green LED looks like it was a flicker. It...
Forum: RC Radios, Transmitters, Receivers, Servos, gyros 09-29-2014, 03:37 PM
Replies: 53
Views: 1,575
Posted By sportflyer
Just be careful on landing. Remember HH mold...

Just be careful on landing. Remember HH mold keeps the last attitude so as you slow the plane , more and more elevator will be applied by the gyro to keep the plane flying level if that was your...
Forum: RC Radios, Transmitters, Receivers, Servos, gyros 09-29-2014, 03:30 PM
Replies: 11
Views: 180
Posted By sportflyer
I will try it out when I get the Minima...

I will try it out when I get the Minima compatible rcvrs . Tks
Showing results 1 to 30 of 56

 
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