Testing the Hawk F5B - Page 30 - RC Groups
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Dec 28, 2015, 05:24 PM
Catalina 44-33915
Sophisticat's Avatar
I have strengthened the motor mount and the electrics have been fitted to the plane. I have been surprised how far forward these parts have had to be fitted in order to meet the CoG at 55-60mm. The throws have been checked and servo covers fitted so in principle she's ready to fly, though I haven't run the motor at full speed. More details of the build are shown in my blog.
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Jun 08, 2016, 11:50 AM
Registered User
I just got one of these and can not find the control throws listed anywhere.

What are you guys using for flaps, crow,elevator and aileron?
Jun 11, 2016, 01:18 PM
Catalina 44-33915
Sophisticat's Avatar
These values are from the Staufenbiel build instructions:
Aileron : up 12mm, down 6mm.
Braking position : aileron 17mm up.
Elevator : 3mm up and down.
Jun 12, 2016, 02:32 PM
Jimmy Rc
newelectro's Avatar
I have a hawk with flaps with full cabon fuse coming from icare. The question I have what is the best way to mount a 2.4 rx in fuse? Are you running antennas outside of fuse by drilling small holes in fuse or is there a better way. What brand radio system do you like fir f5b thanks for any info
Jimmy
Jun 12, 2016, 02:53 PM
Registered User
arcticflyer's Avatar
Always run the antenna outside of a carbon fuselage at least one wave length from the front or the back of the wing. A 2.4 wave length is about 5 inches. I use the Spektrum antenna exits with a piece of plastic tube to hold the antenna stiff and at 45 degrees to the fuselage and have NEVER lost a plane or experienced a hold.
Am not getting into the "brand" issue...that is totally up to personal preference...what feels good in your hand and what bells and whistles you want...would go with at least a 9 channel though
Jun 12, 2016, 07:10 PM
Jimmy Rc
newelectro's Avatar
Thanks Jimmy
Aug 08, 2016, 05:20 PM
Registered User
Quote:
Originally Posted by Sophisticat
These values are from the Staufenbiel build instructions:
Aileron : up 12mm, down 6mm.
Braking position : aileron 17mm up.
Elevator : 3mm up and down.
Elevator at the middle or edge?
Aug 11, 2016, 10:42 AM
Catalina 44-33915
Sophisticat's Avatar
Quote:
Originally Posted by chrispol
Elevator at the middle or edge?
They dont say.
Have a look at the new instructions,
http://download.modellhobby.de/anlei...Manual_web.pdf
Aug 11, 2016, 05:16 PM
Livin it UP when Im goin DOWN
Arcteryxxx's Avatar
Quote:
Originally Posted by chrispol
Elevator at the middle or edge?
Default is middle. No auto trim when you apply the spoilerons. The elevator is your tool for adjusting the angle relative to the speed. As you slow down you have to apply more positive elevator input to keep the fuselage in the right angle, if you have your CG right, that is.
Aug 18, 2016, 01:07 PM
Registered User
Ok will try 3mm in the middle i have about 6 now, just putting it all together as it fell out of the sky last week, down wind turn on 50km/h winds tip stalled all the way down
Aug 26, 2016, 10:28 AM
Jimmy Rc
newelectro's Avatar
I have a hawk from icare it came with a fly fun 100amp übec 3a/5v and I am running 5 ds-843 mg servos. My question is should I have more than a 3amp übec should go opto and use a übec with more amps? My plane has flaps,ail,elev. thanks for any info Jimmy
Aug 30, 2016, 08:51 AM
Registered User
Quote:
Originally Posted by newelectro
I have a hawk from icare it came with a fly fun 100amp übec 3a/5v and I am running 5 ds-843 mg servos. My question is should I have more than a 3amp übec should go opto and use a übec with more amps? My plane has flaps,ail,elev. thanks for any info Jimmy
What power system did you go with? 5 mini servo's should be fine on 3 amp
Aug 30, 2016, 12:55 PM
In search of RC nirvana
fishboy77's Avatar
The current limit of that BEC is a much smaller issue than the fact that it's inside your ESC. This is especially true if you are using the plane for its intended purpose - as a hotliner pulling far beyond 100 amps. If the ESC smokes then you will probably lose control of the plane. A separate receiver pack or at a minimum an external BEC is a good precaution.
Aug 30, 2016, 02:54 PM
Jimmy Rc
newelectro's Avatar
Quote:
Originally Posted by chrispol
What power system did you go with? 5 mini servo's should be fine on 3 amp
I am running a Mega ACn 22/45/1.5KW (4s)with a Graupner 14x9.5 folder plan on running a 3000mah 65c graphene lipo 4s.
Nov 08, 2016, 03:15 PM
DS will change your life
SpeedsterDEN's Avatar
The Fandrive 36-56 1900 motor on the Hawk was more than it could handle

ME 163. Fandrive 36-56 1900 motor (0 min 56 sec)


The hawk went into high speed flutter and exploded in mid air
None of the damage was made in the impact with the ground.

Last week I was in the workshop and rebuild it,,,, not that it deserved it

This time with the Mega motor and folding prop.
And this time I will slope and DS it

Cheers

Soren


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