high-lift camera foamie... - Page 3

Aut0tek · Oct 30, 2009, 03:25 PM

Cool. I like it. I've got a couple other planes and whatever, and that thing really is a solid design. Easy to fly too.

rjarois · Oct 31, 2009, 07:57 PM

installed the gear today....all i have left is the camera mount, and the rubber band keepers for the wing. as of now the model sits at 25oz. the gear added lots of weight. with 2250 3cell the weight is at 31.3oz. i might have to look into a smaller camera, i donno. randy.

Aut0tek · Oct 31, 2009, 08:25 PM

That weighs well under what mine does with all it's junk. it's 50 oz with my bigger battery and cam... I like heavy planes (with adequate propulsion to MOVE said weight) they are less susceptible to wind and such... Or at least that's how it feels when I fly.

Breezemont · Oct 31, 2009, 11:00 PM

Try it with dummy weight first - I'll bet that wing will easily lift it.

rjarois · Nov 01, 2009, 09:00 AM

got the high-lift camera model ready to fly....its auw without a payload is 30.5oz. with a 3 cell 1300mah pack, and 33.3oz. with a 3 cell 2250mah. i weighed my camera and its 12.8oz. ready to fly with servo trigger. my camera mount is at 1.1oz. i have not installed yet. ......that's real fat, and i have a 14.1oz. payload i can test fly....if it can haul that up, it will be fine with the 12.8oz. camera......if not, i will have to get a lighter camera. the first flight should be soon. i will be back to report. randy.

signguy · Nov 01, 2009, 09:27 AM

14 oz payload should be easy with that plane

realtimerecon · Nov 01, 2009, 11:20 AM

Good luck on maiden

Watch ground prop clearance(going by the pix.)...RTR

rjarois · Nov 01, 2009, 01:01 PM

Quote:

Originally Posted by realtimerecon

Good luck on maiden

Watch ground prop clearance(going by the pix.)...RTR

thanks, real....the prop has tons of clearance...the photos dont show this. going to maiden to get cg, then use a 14oz. weight and to try to fly.... randy.

Real Ira · Nov 01, 2009, 01:27 PM

Hi Randy,

Cool looking bird.

It may be a little wobbly in the pitch axis but I have found that standard thinking sometimes does not seem to apply to aircraft this size. It could well fly smooth as silk.
Can't wait to hear how she does.

rjarois · Nov 01, 2009, 03:11 PM

thanks ira....i made it from a great planes tudor model...actually i made a stock sized one that flies great...all i did was scale it up, and instead of a clark-y i used this foil...hopefully it does fly good, and i will give a detailed flight report. randy.

tty044 · Nov 01, 2009, 04:20 PM

Quote:

Originally Posted by Real Ira

It may be a little wobbly in the pitch axis

Hehe they almost killed me for such statement in the begginning of this topic

.
I wish it flys like a bird.
Good luck
Michal

vpatron · Nov 01, 2009, 04:41 PM

Hi Randy,

Your build looks awesome! But your wing as tons of undercamber. You're gonna need a lot of up elevator to counter the negative pitch moment it will produce.

Looks similar to a plane I'm building now...

-Vince

rjarois · Nov 01, 2009, 05:48 PM

Quote:

Originally Posted by vpatron

Hi Randy,

Your build looks awesome! But your wing as tons of undercamber. You're gonna need a lot of up elevator to counter the negative pitch moment it will produce.

Looks similar to a plane I'm building now...

-Vince

Vince, it seems to me you have more advanced knowledge of aerodynamics's than i do...would you have any cg recommendation for this high-lift wing?? is it the same as a Clark-y? i have no clue as were to have on the first flight. i was going to have it on the first 30% . would you do any thing different?. thanks for any input from anyone regarding the cg. thanks. randy.

tty044 · Nov 01, 2009, 06:51 PM

It would be good to have CG closer to the front than to the back. Normally (and more safe for maiden) I would keep it 20-25% from front wing edge. After initial testing you could move CG a little closer to trailing edge (25-30%) and observe plane behaviour. I suppose you will need stable photo platform - thats why I am proposing to keep CG 20-25% from the front of the wing.
Here is CG calculator. You can play with it and find what you need.

Regards
Michal

rjarois · Nov 01, 2009, 07:18 PM

cool mike, thanks....i will look it over. just for the record, i can build ok, but as far as what im buildin...well I'm a idiot...but that never stopped me, lols. thx again. randy.

Oct 31, 2009, 07:57 PM	#32
rjarois Registered User Join Date: Sep 2004 Location: royal oak, michigan Posts: 1,386	gear nstalled.. installed the gear today....all i have left is the camera mount, and the rubber band keepers for the wing. as of now the model sits at 25oz. the gear added lots of weight. with 2250 3cell the weight is at 31.3oz. i might have to look into a smaller camera, i donno. randy.

Nov 01, 2009, 09:00 AM	#35
rjarois Registered User Join Date: Sep 2004 Location: royal oak, michigan Posts: 1,386	camera plane is ready for its first flight.... got the high-lift camera model ready to fly....its auw without a payload is 30.5oz. with a 3 cell 1300mah pack, and 33.3oz. with a 3 cell 2250mah. i weighed my camera and its 12.8oz. ready to fly with servo trigger. my camera mount is at 1.1oz. i have not installed yet. ......that's real fat, and i have a 14.1oz. payload i can test fly....if it can haul that up, it will be fine with the 12.8oz. camera......if not, i will have to get a lighter camera. the first flight should be soon. i will be back to report. randy.

Nov 01, 2009, 11:20 AM	#37
realtimerecon Real Time Recon Join Date: Jan 2007 Location: SML. VA Posts: 6,117	Good luck on maidenWatch ground prop clearance(going by the pix.)...RTR

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Oct 30, 2009, 03:25 PM	#31
Aut0tek Registered User Join Date: Aug 2009 Location: Bluefield, WV Posts: 51	Cool. I like it. I've got a couple other planes and whatever, and that thing really is a solid design. Easy to fly too.

Oct 31, 2009, 08:25 PM	#33
Aut0tek Registered User Join Date: Aug 2009 Location: Bluefield, WV Posts: 51	That weighs well under what mine does with all it's junk. it's 50 oz with my bigger battery and cam... I like heavy planes (with adequate propulsion to MOVE said weight) they are less susceptible to wind and such... Or at least that's how it feels when I fly.

Oct 31, 2009, 11:00 PM	#34
Breezemont Vapor Junkie Join Date: Feb 2009 Location: Northern Colorado At 7200' Posts: 149	Try it with dummy weight first - I'll bet that wing will easily lift it.

Nov 01, 2009, 09:27 AM	#36
signguy Registered User Join Date: Dec 2004 Location: Swansea, Massachusetts Posts: 521	14 oz payload should be easy with that plane

Nov 01, 2009, 01:27 PM	#39
Real Ira Ya, THAT Ira Join Date: Jan 2006 Location: Coupeville, Wa Posts: 4,642	Hi Randy, Cool looking bird. It may be a little wobbly in the pitch axis but I have found that standard thinking sometimes does not seem to apply to aircraft this size. It could well fly smooth as silk. Can't wait to hear how she does.

Nov 01, 2009, 03:11 PM	#40
rjarois Registered User Join Date: Sep 2004 Location: royal oak, michigan Posts: 1,386	thanks ira....i made it from a great planes tudor model...actually i made a stock sized one that flies great...all i did was scale it up, and instead of a clark-y i used this foil...hopefully it does fly good, and i will give a detailed flight report. randy.

Nov 01, 2009, 04:41 PM	#42
vpatron Registered User Join Date: Sep 2004 Location: San Diego/Las Vegas Posts: 1,287	Hi Randy, Your build looks awesome! But your wing as tons of undercamber. You're gonna need a lot of up elevator to counter the negative pitch moment it will produce. Looks similar to a plane I'm building now... -Vince

Nov 01, 2009, 06:51 PM	#44
tty044 Registered User Join Date: Aug 2008 Posts: 137	It would be good to have CG closer to the front than to the back. Normally (and more safe for maiden) I would keep it 20-25% from front wing edge. After initial testing you could move CG a little closer to trailing edge (25-30%) and observe plane behaviour. I suppose you will need stable photo platform - thats why I am proposing to keep CG 20-25% from the front of the wing. Here is CG calculator. You can play with it and find what you need. Regards Michal

Nov 01, 2009, 07:18 PM	#45
rjarois Registered User Join Date: Sep 2004 Location: royal oak, michigan Posts: 1,386	cool mike, thanks....i will look it over. just for the record, i can build ok, but as far as what im buildin...well I'm a idiot...but that never stopped me, lols. thx again. randy.