RE: Top Flite B-25 ARF (Tecnical, tips, suggestions)

RE: Top Flite B-25 ARF (Tecnical, tips, suggestions)
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All Forums >> RC Airplanes >> ARF or RTF >> RE: Top Flite B-25 ARF (Tecnical, tips, suggestions)

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RE: Top Flite B-25 ARF (Tecnical, tips, su... - 3/20/2008 11:08:19 AM

Posts: 733
Joined: 7/20/2005
From: Bairnsdale, AUSTRALIA
Status: offline

Been 35-40 here too, celcius...

Solved the wing alignment bar issues, epoxied the tubes into the wings. That way if I ever need to replace an inner panel, I'll just saw through the bars at the root and replace panel and bars.

There's a scam in Australia at present with people ripping up copper wire from the railway signals and shipping it to China as scrapmetal. Hope the crooks don't see the wiring going into this B25

Cam

(in reply to timothy thompson)

RE: Top Flite B-25 ARF (Tecnical, tips, su... - 3/20/2008 11:49:39 AM

normandouellette

Posts: 308
Joined: 3/12/2007
From: Laval, QC, CANADA
Status: online

Cam,

This is the best idea fo the problem I adressed. It seems that most of the loose is in the wing around the tubes and not through the fuselage. i'M MIXING EPOXY TONIGHT!

Normand

(in reply to camdyson)

RE: Top Flite B-25 ARF (Tecnical, tips, su... - 3/20/2008 4:08:04 PM

kochj

Posts: 1389
Joined: 12/5/2005
From: Victoria, MN, USA
Status: offline

quote:

ORIGINAL: camdyson

Been 35-40 here too, celcius...

There's a scam in Australia at present with people ripping up copper wire from the railway signals and shipping it to China as scrapmetal. Hope the crooks don't see the wiring going into this B25

Cam

Crack heads have been ripping out Copper pipes from low income housing homes right out of the wall for years!
I suppose this will only increase now......
Watch out to all that have apartments and rent out!!!

Justin

_____________________________

Winning isn''t everything, it''s all there is.

(in reply to camdyson)

RE: Top Flite B-25 ARF (Tecnical, tips, s... - 3/20/2008 6:51:59 PM

Posts: 69
Joined: 4/28/2004
From: V - S - F - FRANCE, FRANCE, METROPOLITAN
Status: offline

Hi,
Could someone give the length of robart legs ?
I think mains is 130 mmm
But I don't know for the nose gear
Thanks
ML

(in reply to kochj)

RE: Top Flite B-25 ARF (Tecnical, tips, s... - 3/24/2008 3:51:47 AM

timothy thompson

Posts: 2761
Joined: 6/19/2004
From: saginaw, MI, USA
Status: offline

GOD I WANT TO MAIDEN THIS BIRD! TEMPS IN THE 30S FOR THE NEXT 10 DAYS ALL DURING MY SPRING BREAK! IM SICK OF MICHIGAN WEATHER.SHES A LECCY SO I CANT TAKE THE LIPOS OUT KIN TOO COLD.NEED AT LEASE A 50 DEGREE NO WIND DAY.

(in reply to MLDELARUELLE)

RE: Top Flite B-25 ARF (Tecnical, tips, s... - 3/27/2008 11:06:45 AM

sgoen

Posts: 50
Joined: 5/16/2005
From: South Bend, IN, USA
Status: offline

I got an email this morning that the brakes from Robart are on the way and should be here today. I may get time to finish the plane in the next couple of weeks. The weather is starting to warm up. I think it is almost time to go flying..............

(in reply to timothy thompson)

RE: Top Flite B-25 ARF (Tecnical, tips, s... - 3/27/2008 12:42:08 PM

normandouellette

Posts: 308
Joined: 3/12/2007
From: Laval, QC, CANADA
Status: online

Well Well Well, Tim,

You never mentionned before that electric set up needed at least 50 degrees! (LOL) My glow engines work at -10 degree, uncomfortable but they work!!!

Nevertheless Tim, this "permafrost" we have is still going to be here until May and that is really $#!^^@.

Hopefully we will hear more from everyone on this thread maidening their planes soon.

Meanwhile I do with it!

Normand

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(in reply to timothy thompson)

RE: Top Flite B-25 ARF (Tecnical, tips, s... - 3/27/2008 11:36:09 PM

Posts: 733
Joined: 7/20/2005
From: Bairnsdale, AUSTRALIA
Status: offline

Hey Norm,

What squadron flew ski-equipped Corsairs?

B25 is progressing slooowly. Wing joiners are all sorted - I've ended up epoxying the alignment tubes into one side, screw into other, so can still disassemble. If start to get sloppy, will epoxy the lot later. Gyro is set up on rudders - seems to give a bit of "grumbling" in the servos on any gain setting other than off, but seems to work fine.

My new air compressor for my airbrush is hopefully due next week if my birthday hints pay off

, then I can get into the scale detailing.

I still haven't found an alternate scheme incorporating those white fuz stripes - anyone have any leads?

Cam

(in reply to normandouellette)

RE: Top Flite B-25 ARF (Tecnical, tips, s... - 3/27/2008 11:58:35 PM

normandouellette

Posts: 308
Joined: 3/12/2007
From: Laval, QC, CANADA
Status: online

Hello Cam,

About the gyro inducing that grumbling noise, it is normal. You should set it up so it is 100% on and off on your aux 2 switch. Also induce 20% rudder in the aileron to rudder mix, will help in turns.

About the corsair on skis, I' m so bored in the winter I do anything to have fun... i shove skis on lots of my plane>>>I'm not alone!!!! I still have a 22ft th high pile of snow in front of my house. This is a record year in Montreal for snow accumulation. Lats year we were flying at the field since the 10th of March, we expect the snow to melt by mid May this year. meanwhile...

Normand

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(in reply to camdyson)

RE: Top Flite B-25 ARF (Tecnical, tips, s... - 3/28/2008 5:45:16 PM

Posts: 241
Joined: 4/14/2002
From: Littleton, CO, USA
Status: offline

Here's a link to the video of my TF B25 and Clark's H9 B25 flying formation at Chatfield State Park. We're practicing for the "Warbirds Over Denver" event coming up June 13, 14, and 15. I'd love to hear your comments and hope this inspires you guys to build on of these and come join the fun!!!

http://www.youtube.com/watch?v=hY3zMsfv-vg

Doug

(in reply to normandouellette)

RE: Top Flite B-25 ARF (Tecnical, tips, s... - 3/29/2008 10:49:43 PM

Posts: 69
Joined: 4/28/2004
From: V - S - F - FRANCE, FRANCE, METROPOLITAN
Status: offline

Great Video ! Perhaps, in my humble opinion, you fly too fast. What are the engines ? Do you fly flull throtle ?

On the other side, I need help about the retracts.
I've mounted Eurokits retracts. They fits, but I have a problem for closing the traps with the legs.

If there is no traps and lever, the retracts retrats (!) well.
If I set the lever, the leg push the lever, but not full movement , except if I set the speed retract using the valve to 100%.
In fact, the spring to expand the retract is very strong in Eurokits, so the force inducted by the air pressure is not strong enough to close the retract.
I've tried with 3.5 bars of pressure in the tank. Which pressure do you use ?

I would like to know if there is a similar pb with the Robart's retracts ? And how to solve it ?
Does anyone tried another way to close the gear doors ?

Thanks
ML

< Message edited by MLDELARUELLE -- 3/29/2008 11:12:27 PM >

(in reply to fytrjok)

RE: Top Flite B-25 ARF (Tecnical, tips, s... - 3/29/2008 11:59:02 PM

normandouellette

Posts: 308
Joined: 3/12/2007
From: Laval, QC, CANADA
Status: online

Shows you are in thin air they seem to fly faster at least 20% faster.

nice video, I'll be the small plane in june here, 3 of my buddies built the ziroli 101 inch wingsapan

Normand

(in reply to fytrjok)

RE: Top Flite B-25 ARF (Tecnical, tips, s... - 3/30/2008 9:54:15 AM

Posts: 733
Joined: 7/20/2005
From: Bairnsdale, AUSTRALIA
Status: offline

ML,

I've found my retracts need a fair bit of pressure, so can't slow them down much with the Robart valve. I put 120 psi in and get 8-10 cycles using the large air tank, but up and down with a "clunk". Will try to slow the speed as they loosen up a bit.

Setting up radio today, used the servo speed on the JR PCM 9xII to set 2 sec on flaps and 3 sec on bomb bay doors, and finally worked out how to get the elevator mix to move slow with the flaps - looks cool!

Also set some "toe-out" on the rudders to help in an engine-out, not that I plan to have one you understand.

Back to details.......

(in reply to normandouellette)

RE: Top Flite B-25 ARF (Tecnical, tips, s... - 3/30/2008 1:51:44 PM

Posts: 342
Joined: 8/5/2007
From: Champaign, IL, USA
Status: offline

About retracting the gear,

I prefer the gear to retract rather fast, making sure they have enough momentum to close the doors on the way up. Extending the gear, you can slow them if you like. Either way--especially on the way down--the gear does "clunk." About the only way to cure that is to slow the gear considerably. And the gear does break in after a few flights.

Fytrjok, nice video!!! That thing should land slower, but maybe because of your altitude...

Tim Lampe
Hobbico R&D

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Tim Lampe
Hobbico R&D

(in reply to camdyson)

RE: Top Flite B-25 ARF (Tecnical, tips, s... - 3/30/2008 9:04:52 PM

Posts: 28
Joined: 2/16/2002
From: Sanatoga, PA, USA
Status: offline

Tim. Am I doing something wrong or did I miss a posting. Just finished putting the landing gear doors on one nacalle, however when I put the nacalle on the wing the gear side door hits the landing gear struct and will not close. Can't see how it is possible to close whitout trimming part of the gear door. The gear is in the full locked down position and I centere