HobbyKing.com New Products Flash Sale
Reply
Thread Tools
Old Dec 12, 2007, 11:23 AM
Crash & Burn
rmgmag's Avatar
Glastonbury, CT
Joined Nov 2004
2,503 Posts
Quote:
Originally Posted by Maybz
.....The FC 28-12 would be a great choice however... I have one of these in my Yardbird F-22 and it is fantastic. ....
Glad you mentioned that motor, because I just ordered one. I was thinking about using one of my LSPP's but that would mean stripping it out of one of my other regularly used planes.

Bob
rmgmag is offline Find More Posts by rmgmag
Reply With Quote
Sign up now
to remove ads between posts
Old Dec 12, 2007, 02:25 PM
Registered User
smkn951's Avatar
United States, HI, Kapolei
Joined Jan 2007
1,440 Posts
MAYBZ, you're right, it's the 28-05. and correct again on the throws, not quite close to touching as i am using 5g hxt servos and it came with short arms.
but i do have the 9 g coming this week, i also have the silver wonder 1700kv somewhere 'round here, would that be fine with 1800 20c 3cell lipo? i want to see this thing boogie.
TIA
btw. i may be addicted to the f-14 so far i counted 4 in the shed, 2 of your designs, 1 jetsets and 1 profile i just made up for aero ace gear.
smkn951 is offline Find More Posts by smkn951
Reply With Quote
Old Dec 12, 2007, 02:32 PM
Registered User
smkn951's Avatar
United States, HI, Kapolei
Joined Jan 2007
1,440 Posts
forgot to add toxictoast's YAP F14.
smkn951 is offline Find More Posts by smkn951
Reply With Quote
Old Dec 12, 2007, 03:14 PM
bigbadbob2003's Avatar
Joined Nov 2007
125 Posts
Quote:
Originally Posted by Maybz
Bigbadbob.. I just finished programming a new heli profile for the Mk2 per your instructions....

Another nice side effect of using the Heli flight modes is that there are independent trims for each position now - Nice!
good point i hadn't thought of that, should come in handy.

let us no how it goes with the auto sweep i'm stugglin getting to fly mine its either too dark or raining here
bigbadbob2003 is offline Find More Posts by bigbadbob2003
Reply With Quote
Old Dec 12, 2007, 04:36 PM
medium-sized Lewbowski
USA, CO, Denver
Joined Jan 2005
300 Posts
Just got back from a 2-pack lunch... two lipo packs that is. First flights with the variable sweep and whadya know.. it works! I could float along at 3ft off the deck then pull vertical and punch it and head straight up... and the wings took care of themselves. Still no issues with pitch or CG that I can detect. As I mentioned before, I still get some 'sweep lag' if I try to change sweep and high speed or high wing-loading... so with the vario I found I would sometimes need to wait for the plane to slow a bit before the wings would catch up with the throttle setting. But I found I spent most of my time flying with the switch in the vario position, so I think it's a keeper for me personally.

Also stumbled on a new 'maneuver'... I was playing around with stalls and found that dead stick with wings open and FULL up elevator she'd come straight down with wings perfectly level and perfect flat attitude. No porpoising or falling off on a wing... and I mean STRAIGHT down, it's amazing. It's like having a built-in parachute. So with the vario on I was making high speed approaches then killing the throttle and pulling back on the stick to bleed speed... then coming straight down nice and slow for a perfect 1-point landing in 5" of fresh snow... at which point I started making snow angles with the wings.

I would have shot some vid but my cameragirl is busy today. Bummer.

Anyway I'll try again tomorrow weather permitting.

Cheers
Maybz is offline Find More Posts by Maybz
Reply With Quote
Old Dec 12, 2007, 04:47 PM
Registered User
smkn951's Avatar
United States, HI, Kapolei
Joined Jan 2007
1,440 Posts
ahhhhh, gotta change the motor now......this thing called WORK is getting in the way....
ithink i may have performed the same manuever but not by choice, kinda ran out of power way up and i had to do some weird stuff so it doesn't end up as a lawn dart.
ok ok gotta put on the blue wonder 1700 kv....
wish me luck
smkn951 is offline Find More Posts by smkn951
Reply With Quote
Old Dec 12, 2007, 04:53 PM
Glassman
TerryE's Avatar
Leesburg, VA
Joined Aug 2004
517 Posts
Maybz;

Do you think the sweep lag could be from a weak servo? It seems to me that sweeping the wings could take quite a bit of power. May want to try a stronger servo.

just my $0.02

Terry
TerryE is offline Find More Posts by TerryE
Reply With Quote
Old Dec 12, 2007, 04:58 PM
medium-sized Lewbowski
USA, CO, Denver
Joined Jan 2005
300 Posts
Quote:
Originally Posted by TerryE
Maybz;

Do you think the sweep lag could be from a weak servo? It seems to me that sweeping the wings could take quite a bit of power. May want to try a stronger servo.

just my $0.02

Terry
Yes, without question the problem is due to an underpowered servo. The HS-65 is the strongest micro-sized servo I have and I'm trying to keep things as light as possible, but there is plenty of room to upgrade to a HS-80 or something similar. Next one I build will probably have an HS-80 in it. I wish someone made a micro retract servo with extra low and slow gearing.. that would be the perfect solution.
Maybz is offline Find More Posts by Maybz
Last edited by Maybz; Dec 12, 2007 at 05:07 PM.
Reply With Quote
Old Dec 12, 2007, 05:02 PM
Winging it >
leadfeather's Avatar
Joined May 2006
9,769 Posts
Futaba computer radio

Would this work for high speed wing sweep?

I have a Futaba 6 ch computer radio. Flaps are controlled by a dial on ch 6, so if I use ch 6 for the swing wing I can set the wings to any position manually.

I can also slave ch 6 to the throttle. So with lots of expo on ch 6, I can have the wings sweep back automatically at higher throttle settings. I can also manually override using the ch 6 dial.
leadfeather is online now Find More Posts by leadfeather
Reply With Quote
Old Dec 12, 2007, 05:19 PM
Registered User
smkn951's Avatar
United States, HI, Kapolei
Joined Jan 2007
1,440 Posts
what radios to you guys use in order to these different things.
i have a futaba 4exa. can't quite decide on which SANTA would get me.....for the upgrade.
tia
smkn951 is offline Find More Posts by smkn951
Reply With Quote
Old Dec 12, 2007, 05:34 PM
RobbeUK & Midland Helicopters
United Kingdom, Rushden
Joined Dec 2005
139 Posts
Quote:
Originally Posted by Maybz
I wish someone made a micro retract servo with extra low and slow gearing.. that would be the perfect solution.
Hey,

On the subject of servo's, in my example of your plan I am running one of these on the wing sweep :

Waypoint W-150 13.8g Servo
Weight : 13.4g/0.49oz
Torque : 4.8V 2.5kg-c / 35oz-in
Speed : 4.8V/0.13sec/60?
Size(mm) : 26x13x26
Size(inch) : 1.16x0.51x1.02
Motor type : 3-Pole Ferrite
Gear type : Plastic

http://robotbirds.com/catalog/produc...roducts_id=975

*Update* Must use the metal geared version of the above as in my first flight I stripped the plastic ones.
Or the retract servo below will be a good option to.


I am yet to try the model as yet so cant comment on the power moving the wings in flight as yet, but it's light and powerful.
Looking around the same site I later came across this one :

Waypoint W-150MGR 15.6g MG Retract Servo
W-150MGR - 125-Deg Retract, Metal-Gear
Weight : 16.2g/0.59oz
Torque : 4.8V / 3.9kg-cm / 52oz-in
Travel Angle 125 degrees
Speed : 4.8V/0.19sec/60?
Size(mm) : 26x13x26
Size(inch) : 1.16x0.51x1.02
Motor type : 3-Pole Ferrite
Gear type : Metal

http://robotbirds.com/catalog/produc...roducts_id=978

On the tailerons I am running these :

Waypoint W-092SH 9.2g High Speed Servo
W-092SH - High Speed for Mini Helicopter/E3D
Weight : 9.4g/0.36oz
Torque : 4.8V 1.3kg-cm / 17oz-in
Speed : 4.8V/0.09sec/60?
Size(mm) : 24.5x11.5x22.5
Size(inch) : 0.98x0.45x0.90
Motor type : 3-Pole Ferrite
Gear type : Plastic
Ball Bearing: Single, Top

http://robotbirds.com/catalog/produc...roducts_id=974

Which worked very well on a mini 3D heli.
As to a distributer in the US I dont know but maybe of interest to you for reference atleast.

I'm getting itchy fingers to try mine out, just waiting on a motor mount.

Ian
coolice is offline Find More Posts by coolice
Last edited by coolice; Dec 17, 2007 at 06:20 AM.
Reply With Quote
Old Dec 12, 2007, 05:59 PM
medium-sized Lewbowski
USA, CO, Denver
Joined Jan 2005
300 Posts
Ian,
Thanks for the great info. That 150MGR looks like the ticket and with only a slight weight penalty. I'm going to order one from Allerc here in the US. http://www.allerc.com/product_info.p...oducts_id=2121

Smkn951,
you will probably get many different answers to your question, but my personal suggestion is to ask Santa for a new Spektrum DX6i. I have not handled one yet, but it appears to have all of the same great features as the venerable DX7 but with a better price tag. It will take you a LONG time to outgrow this radio.
Maybz is offline Find More Posts by Maybz
Last edited by Maybz; Dec 12, 2007 at 06:06 PM.
Reply With Quote
Old Dec 12, 2007, 06:12 PM
Slipping the Surly Bonds
dz1sfb's Avatar
Attica, MI
Joined Dec 2006
10,742 Posts
Simple Wng Sweep set-up

I am going to use my Hitec Neon with the fourth channel 3 position switch. This seems like an ideal low-budget set-up. The Switch allows a fourth channel with 3 positions for the servo, end-center-end. That correlates with open-mid-closed for wing position.

Ken
dz1sfb is offline Find More Posts by dz1sfb
RCG Plus Member
Latest blog entry: Mini H Quad Project
Reply With Quote
Old Dec 12, 2007, 06:28 PM
Slipping the Surly Bonds
dz1sfb's Avatar
Attica, MI
Joined Dec 2006
10,742 Posts
BP Outrunner or Suppo 2208-14

How would you guys rate this motor for this application?

http://www.bphobbies.com/view.asp?id...7&pid=B1898550


No. of Cells: 2 - 3 Li-Poly / 6 - 8 NiCd/NiMH
Kv: 1450 RPM/V
Max Efficiency: 80%
Max Efficiency Current: 5 - 9A (>74%)
No Load Current: 0.6A @10V
Resistance: 0.140 ohms
Max Current: 12A for 60S
Max Watts: 130W
Weight: 39.3 g / 1.39 oz


Ken
dz1sfb is offline Find More Posts by dz1sfb
RCG Plus Member
Latest blog entry: Mini H Quad Project
Reply With Quote
Old Dec 12, 2007, 06:28 PM
CNC Cutter
birdofplay's Avatar
United States, IN, Indianapolis
Joined Dec 2005
8,761 Posts
Whooo Hooo ! !

I finally maidened My F-14 swing wing !!!

Got two flights in before it started raining AGAIN !

Not a big deal I simply dialed in a smidge of up trim
ran up the throttle to about 2/3 and gave it toss from the canopy !

My AUW is just under 13 oz
using a Komodo 257 motor ( my special wind )
CC 18Tbird Esc and a 1250ma CSRC Lipo !
I'll toss in my flight recorder nex time out !
So I can lay a few more details on ya !

My HS81 wing swing servo is just about right
BUT it has plastic gears - THEY GOTTA GO !
Those solutions offered just above this post look
pretty tempting.
That waypoint 150MGR loks liek a good bet IMHO

Regardless, It flew as advertised. Plenty fast with wings back
and plenty of roll rate too !
It does nice Cuban 8's with wings I and OUT !

It's a little sluggish at HiAoA with the wings out !
It's much better at lower AoA and some more speed/power.
Yes I have LOTS OF THROW !

Pretty much just like Mike's Vids !

I was Worried about the Wings staying put !
Not anymore ! :-)))

Oh OH IF I had read about Mikes Parachute maneuver
before I'd gone flying I'd have tried that.
My Harpy does it "on command" .
I've even let it go to the ground ! ( on a dare )

If the F-14 does it too I'll be a happy camper ;>}


My collection just keeps growing.
Harpy, F-22, F-14, SU-37 and now mike is doing a YF-23 !

I gotta get more "gear" !!!

Thanks Mike ! :-)
birdofplay is offline Find More Posts by birdofplay
Last edited by birdofplay; Dec 12, 2007 at 06:44 PM.
Reply With Quote
Reply


Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Update for F-14 EDF plan buyers. bipeflyer Electric Ducted Fan Jet Talk 6 Feb 11, 2005 02:10 AM
F-14 Scale EDF Whos kit is it ??? F900 Electric Ducted Fan Jet Talk 6 Dec 07, 2001 09:26 AM
F-14 Tomcat EDF,pictures and questions bipeflyer Electric Ducted Fan Jet Talk 13 Jul 14, 2001 07:10 PM
Great Plane F-14 and Learjet conversions sbarrow Sport Planes 1 Jun 24, 2001 09:00 PM
f-14 center of gravity verus center of lift tony houk Power Systems 5 May 14, 2001 02:48 PM