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,... - 7/22/2008 8:18:43 PM

europatc74

Posts: 75
Joined: 2/18/2005
From: summit, NJ, USA
Status: offline

Where do you think these companies make their money from......................replacement parts..........

(in reply to CCFPILOT)

Post #: 1651

RE: Top Flite B-25 ARF (Tecnical,... - 7/22/2008 8:36:10 PM

krproton

Posts: 455
Joined: 8/5/2007
From: Champaign, IL, USA
Status: offline

quote:

ORIGINAL: CCFPILOT

Does anyone know how to strengthen the bombardier / nose gunner greenhouse canopy? I’m on my third one.

Hey CCFPILOT,

will you please tell me how your nose-gunner canopy is breaking? Then, maybe I can help.

(Hobbico does not "make it's money" from replacement parts, and I gurantee we don't purposely make components of the model weak or fragile so we can sell replacements. Stocking replacement parts is a burden because it consumes warehouse space that could be used for more profitable items that have a much higher turnover rate. We are obligated to stock replacement parts as a service.)

_____________________________

Tim Lampe
Hobbico R&D

(in reply to CCFPILOT)

Post #: 1652

RE: Top Flite B-25 ARF (Tecnical,... - 7/22/2008 8:53:33 PM

CCFPILOT

Posts: 56
Joined: 1/22/2008
From: Orange, CA, USA
Status: offline

Krypton:
The first one cracked around the nose gun because the plastic was just to thin. I think the second one cracked because I brushed the nose gun against the bench and broke off the gun, which I think caused the crack.

If the plastic were a little heaver, particularly around the gun, it sure would be better. The molding process cause the plastic to stretch to thin in that area.

I have read on this thread about some of them breaking when dropped on the floor. Anyway, I'm on my third canopy.

Also I'm wondering how many flight most people can get before the radio compas falls off. I lost mine of the first flight, but got a new one with the canopy. I now only use it for display.

Thanks for any help.

(in reply to krproton)

Post #: 1653

RE: Top Flite B-25 ARF (Tecnical,... - 7/22/2008 11:28:51 PM

krproton

Posts: 455
Joined: 8/5/2007
From: Champaign, IL, USA
Status: offline

quote:

ORIGINAL: CCFPILOT

Krypton:
The first one cracked around the nose gun because the plastic was just to thin. I think the second one cracked because I brushed the nose gun against the bench and broke off the gun, which I think caused the crack.

If the plastic were a little heaver, particularly around the gun, it sure would be better. The molding process cause the plastic to stretch to thin in that area.

I have read on this thread about some of them breaking when dropped on the floor. Anyway, I'm on my third canopy.

Also I'm wondering how many flight most people can get before the radio compas falls off. I lost mine of the first flight, but got a new one with the canopy. I now only use it for display.

Thanks for any help.

Hi again CCFPILOT.

I guess it's too late now, but maybe (maybe - I can't speak for Product Support) you could have gotten a replacement for free if the first nose-gunner canopy just cracked all by itself.

Regarding the one that broke when the nose gun got bumped, I once broke the nose gun itself when I bumped my leg against the nose gun too, but that was my own fault. Way back in the beginning of this thread I suggested removing the nose-gunner canopy (with the nose gun) while transporting the model, and placing a barrier in front of (and behind) the model so nobody can walk by and bump into the guns and break them off. I don't know if I would expect it to hold up if dropped on the floor thoughwell, MAYBE on carpet.

Maybe I'll see if we can pull future nose guns from thicker plastic as you suggested (but I know this won't help you now).

I don't know what you mean by the "radio compass."

I haven't really helped you (except for suggesting to place a barrier in front of your guns), but thank you for your suggestions.

Sorry,

Thanks.

Tim

_____________________________

Tim Lampe
Hobbico R&D

(in reply to CCFPILOT)

Post #: 1654

RE: Top Flite B-25 ARF (Tecnical,... - 7/23/2008 12:51:09 AM

CCFPILOT

Posts: 56
Joined: 1/22/2008
From: Orange, CA, USA
Status: offline

Sorry, I should have said radio compas antenna, the loop antenna held under the fusalage with the two magnets.

(in reply to krproton)

Post #: 1655

RE: Top Flite B-25 ARF (Tecnical... - 7/23/2008 4:25:45 AM

europatc74

Posts: 75
Joined: 2/18/2005
From: summit, NJ, USA
Status: offline

I have found when installing cowls and nose cones or any plastic parts that need to be attached with a screw or bolt, to smear a little epoxy around the area where the hole has been drilled on the inside. Let dry before installing. This will strengthen the area around the hole keeping it from cracking. Works for me. The nose piece on the 25 is thin and brittle. I too have had to replace it. You could try to carefully coat the inside with epoxy. My remedy is to not even breath on it............

(in reply to CCFPILOT)

Post #: 1656

RE: Top Flite B-25 ARF (Tecnical,... - 7/23/2008 7:21:46 AM

MLDELARUELLE

Posts: 73
Joined: 4/28/2004
From: V - S - F - FRANCE, FRANCE, METROPOLITAN
Status: offline

Hi,
I use Eurokit retracts. The nose retract is for 4kg planes too, the same strengh as Robart, because the space to house it is not big enough
One time, the nose retract did not lock and cleared itself. The nose gunner was intact !!! She glided on the grass. I just lost a little piece of wood in the nose gear door which hold a hinge.

Now I strengthened the nose retract by drilling and now using a 6mm axis to hold the leg instead of 5mm. Yesterday I did the 5th and 6th flight without any problem.

If you need to strenghted the nose anyway, you way use resin+glass tissue inside the bottow part of the nose.

(in reply to CCFPILOT)

Post #: 1657

RE: Top Flite B-25 ARF (Tecnical,... - 7/23/2008 8:12:02 AM

fytrjok

Posts: 281
Joined: 4/14/2002
From: Littleton, CO, USA
Status: offline

Tim,
I saw your post re: the possibility of pulling the nose canopy from a thicker stock. That would be great...but I was wondering if anything could be done to clear up the foggyness of both the nose canopy as well as the main canopy? I, and a lot of others have spent considerable time detailing the cockpit and nose areas but much is lost because of the limited clarity of the "glass" parts. Wing Mfg. provides crystal clear replacement canopies for their B25 and all the detail I put in mine (after I did the TF B25) really shines. If you'd like, I could post some pics comparing and contrasting the two manufacturers products. Whatcha' think??

Doug

(in reply to krproton)

Post #: 1658

RE: Top Flite B-25 ARF (Tecnical,... - 7/23/2008 12:01:27 PM

krproton

Posts: 455
Joined: 8/5/2007
From: Champaign, IL, USA
Status: offline

Hi Doug.

Sure, thanks. Go ahead and post some pics contrasting the two windscreens. I think the material used on our canopies is polycarbonate (like Lexan?). Maybe, for some reason, it's more difficult to get a good, clear pull from that material (?). Maybe others use butyrate (spelling?). I know our Great Planes kits (not ARFs) use butyrate. But many paints don't work with that and you can paint polycabronate with many types of paint.

Thanks.

Tim

_____________________________

Tim Lampe
Hobbico R&D

(in reply to fytrjok)

Post #: 1659

RE: Top Flite B-25 ARF (Tecnical... - 7/23/2008 1:26:22 PM

MLDELARUELLE

Posts: 73
Joined: 4/28/2004
From: V - S - F - FRANCE, FRANCE, METROPOLITAN
Status: offline

Hi
The cyanolit glue suggested by the documentation make a fog on the canopies. After, I used another one with more success
ML

(in reply to krproton)

Post #: 1660

RE: Top Flite B-25 ARF (Tecnical... - 7/24/2008 2:00:04 AM

Bill Giulian

Posts: 29
Joined: 2/16/2002
From: Sanatoga, PA, USA
Status: offline

Tim. Intend to purchase a new Futaba 10C for the B-25. However, if I use a gyro I am not sure which Futaba gyro to use. Any suggestions?
Bill Giulian

_____________________________

Semper Fi
AMA #12310

(in reply to MLDELARUELLE)

Post #: 1661

RE: Top Flite B-25 ARF (Tecnical... - 7/24/2008 3:50:03 AM

krproton

Posts: 455
Joined: 8/5/2007
From: Champaign, IL, USA
Status: offline

Hi Bill.

I have no idea what-so-ever on the gyro. I'll check with some of the Futaba guys at work tomorrow and let you know what they recommend.

'Til tomorrow.

Tim

_____________________________

Tim Lampe
Hobbico R&D

(in reply to Bill Giulian)

Post #: 1662

RE: Top Flite B-25 ARF (Tecnical,... - 7/25/2008 2:45:12 PM

toreo

Posts: 37
Joined: 1/27/2005
From: Kazan, , RUSSIA
Status: offline

quote:

ORIGINAL: krproton

quote:

ORIGINAL: CCFPILOT

Does anyone know how to strengthen the bombardier / nose gunner greenhouse canopy? I’m on my third one.

Hey CCFPILOT,

will you please tell me how your nose-gunner canopy is breaking? Then, maybe I can help.

I am not CCFPILOT, but i received already damaged nose canopy. It is nowonder - too slimpsy. I use that as is - i have no choice. Now i bought new spare canopy, and waiting postbox.

(in reply to krproton)

Post #: 1663

RE: Top Flite B-25 ARF (Tecnical... - 7/25/2008 2:53:57 PM

toreo

Posts: 37
Joined: 1/27/2005
From: Kazan, , RUSSIA
Status: offline

quote:

ORIGINAL: Bill Giulian

Tim. Intend to purchase a new Futaba 10C for the B-25. However, if I use a gyro I am not sure which Futaba gyro to use. Any suggestions?
Bill Giulian

i used Gy351 on ail and e-sky heli gyro on rudder. Perfect effect!! But afterwards, i demount gyros from plane. It is deny by competition rule, and don't needed for this plane. TF Mitchel fly perfect without any gyro.

(in reply to Bill Giulian)