Anyone Flying Any Twins???

[Nate129]

Anybody have any of the twin-engined planes from the Hobby Lobby fleet?
P-38, De Havilland Mosquito, B-25 or maybe the Bf-110?
I am looking into trying something new, and was wondering how the twins fly and build...

[the Swamp Fox]

I had the JR P-38 for awhile . (from HL) .Nice kit ,,I never built.

Sold it to a fellow in Australia . If you want retracts and all that it will take some work as there are no mounting provisions in the P-38 .Plus the plane is a little on the small side .Other than that it's an easy "build" .I don't know about the B-25, but it is a bigger bird.

K&A makes a P-38,

real pretty KA bird here: http://www.rcgroups.com/forums/showthread.php?t=394352

Esprit model has a few twins including a nice composite BF110 with retract wells but it is $$$. (Savex i think)

Only twin I fly right now is the GP DC-3 / C47 so it kinda is a military plane ...cool sound ,easy to fly but more like a fighter than a transport/airliner :)


A friend flies an 83" VQ P-38 conversion axi 4130's and 6s4p x 2 :D
it's damn impressive and flew great,,

I shot some vid of the maiden under failing light :

http://www.back40flyers.com/flightvids/p38maiden.WMV


good luck and hope you find one you like ,

twins are fun ;)

[Nate129]

Wow, thanks for all the info - I am definitely interested in getting a twin here pretty soon, something different to 'light the fires' so to speak.
The thing I am wondering about the FS P-38 is the Axi 2208-34's that HL suggests to use with the plane...just doesn't seem like it would be enough power to me - but I am still a beginner with all the watts/amps/thrust figures...

[pda4you]

How about this......
http://www.rcgroups.com/links/index.php?id=4703

Mmmmmmmmmmm tastes good.....

Mike

[Old Shep]

The FS P-38 is a sweetheart of a flying machine. Grooves well, is smooth and very predictable. It is a tad underpowered, but it will loop from level flight, rolls like the real one....don't know what else you'd want to do with a scale model.
Fly-bys are really special.
Old Shep

[Speed is Life]

My JR Models Mosquito (from Dymond RC). Very nice flyer with Mega brushless & LiPo.

Used to have a JR Models P-38 (from Hobby Lobby) lost it to the famous "lawn dart maneuver". That one was powered with Mega 16/15/7's, 3s2p ThunderPower, and Graupner 7x7's. A very sweet plane, easy to hand launch, nice speed range.

Currently working on an Aeronaut F-7F Tigercat. I'll post pictures when finished.

[Speed is Life]

Forgot the better shot of my Mossie

[the Swamp Fox]

nice birds!

Sorry to stray from twins but I have that TA-152 . Haven't flown it yet ,,,please tell me how is she ? :)

thanks bud !

[Speed is Life]

nice birds!

Sorry to stray from twins but I have that TA-152 . Haven't flown it yet ,,,please tell me how is she ? :)

thanks bud !


S. Fox..........
PM'd you about the Ta. I suppose we could start a Ta thread?

[wellington53]

Hey Speed, I am interested in getting a Mossie like yours and see that Esprit model sell them for $249. That seems expensive but maybe not. Could you tell me otherwise? I have Scopio Mossie and it flys great but hate the scale look, and don't like hollow moulded foam, it's too fragile,
Glenn..

[Speed is Life]

Hey Speed, I am interested in getting a Mossie like yours and see that Esprit model sell them for $249. That seems expensive but maybe not. Could you tell me otherwise? I have Scopio Mossie and it flys great but hate the scale look, and don't like hollow moulded foam, it's too fragile,
Glenn..

If the model is already covered with the ultracote type stuff then that's a good price. Dymond is higher.

[wellington53]

Speed, Is there any landing gear on your Mossie or can you hand launch,
Glenn.

[Speed is Life]

Speed, Is there any landing gear on your Mossie or can you hand launch,
Glenn.

No retracts fitted to my smaller models for 2 reasons. 1) We have a nice grass field & 2) I don't want to bother with the extra weight, structural additions, and complexity.
The Mosquito does have plenty to room in the engine nacells if you wanted to go the retract route.
I've not hand launched it, the model has a nice fuselage shape for a good grip though.
I just have a hook on it and bungee either off the grass (belly sliding) or off rails if I have them along.
-Mike

[wellington53]

Thanks for that Mike,

Glenn.

[Speed is Life]

OK, said I'd post pix of my Aeronaut F-7F Tigercat build.
It's coming along-slowly. My EDF's have been getting more attention.
Will be powered roughly like the Mosquito:
R-2800's - Ooops, I mean Mega 16/25/4's
CC Phoenix35's
3s3p ThunderPower
Aeronaut carbon 9.5x7's (the Mosquito uses 8.5x7's)

[vise101]

How's the Tigercat coming?

She's a real beauty, where do you get those? Also, is that the one made in Europe?

Kevin

[CUBANO8]

How about one of these....
I'll soon be building it..70" wingspan:D

[Willmsy]

I did the HL B-25
http://www.rcgroups.com/forums/showthread.php?t=355985
Flies AWESOME with that power set up...

Matt

[CUBANO8]

Flies AWESOME with that power set up...

Matt


Matt,

Could this plane fly with only one motor?

Sam

[Willmsy]

Probably but I wouldn't know where to mount it?! :)

[CUBANO8]

Probably but I wouldn't know where to mount it?! :)

LOL :D

No, I'm asking if it will fly if you had one motor fail, and the other still works.

[Willmsy]

Might have a problem with torque and it would pull way more on the side still running, Believe it or not the thing glides great.

Matt

[Speed is Life]

How's the Tigercat coming?

She's a real beauty, where do you get those? Also, is that the one made in Europe?

Kevin


No work on the "Cat of late. Too busy with work and a nose end rebuild of my F-84 EDF that mid-aired with a SlowStick.

The kit is from AeroNaut (Europe), Hobby-Lobby here in the US did stock them at one time but not lately. They say that they can special order them.......

ductedfans.com has them, http://www.ductedfans.com/planes_E_tigercat.html

[TomJacoby]

The DH.103 Hornet by WarbirdKits.com is a great-flying twin! This built-up balsa kit features vacuum-formed cowls, canopy and nose cone, and builds your choice of the F.1 or F.3 Hornet. It is designed to be powered by two Speed-400 motors.

Check our Web site for more info, photos, free downloads, etc.

Tom
www.warbirdkits.com

[Highlander]

How 'bout my scratch built Armstrong-Whitworth Whitley bomber. I wanted a twin, too. So I built one. :) Check out more pics here: http://www.rcgroups.com/forums/showthread.php?t=419726

[TomJacoby]

How 'bout my scratch built Armstrong-Whitworth Whitley bomber. I wanted a twin, too. So I built one.

Nice work, Highlander! It's good to see more folks building the seldom-modeled aircraft.

-tom

[fredok]

Here is my tigercat from aeronaut
She is powered wit axi 2814/12 and 8nimh 3300.
I should go for lipo, but flies great like this. She is now 3 years old !!

Regards

Fred

[Tempest]

Very nice job Fred! What size props are you spinning? Any issue with using the 3-bladed props and belly landing her?

Paul

[fredok]

Prop are 9 inches, but did not try for flying, to avoid issue at landing.
Motor bulkhead are of poor plywood, and even with 2 blades prods, it's sometimes a problem. I should have fit some retracts !!!

Fred

[ticketec]

This is the S&B P-38.....



I'm am currently building the Me-262, will have retracts and flaps.

[DLC]

Here is a twin I built a while back. It used two IPS-S2 motors. It didn't last long. It flew well. but was too touchy for my skills and reflexes.

[DLC]

I just realized I didn't tell what the plane is. It is a WWII Grumman Skyrocket. It never got into production.

[gearup]

go over to the scale forum.. 4 posts on electric twins ( A-26, P-61, B-25, PBY)

[maux]

here here! im demanding video of a bf-110 in flight!!!

[Hiflyer]

maux said:

here here! im demanding video of a bf-110 in flight!!!

O.K. Here you go.

First without the landing gear.

http://www.hobby-lobby.com/media/FSK028-Bf110.wmv

Then with landing gear:

http://www.hobby-lobby.com/media/FSK028-Bf110gear.wmv

[Tom Hunt]

Kit bashed HVP Beaufighter into Merlin engined night fighter.

two Mega 16/15/4 on Modelair-tech 2.57/1 belt drives. 10 x 7 Rotol scale props (now, not in picture). 3s1p Kokam 3200. Rhom air retracts. around 5 bs.

Also have stock (Hobby Lobby stock powered that is) FSK-p-38 and BF-110
The BF-110 has retracts (mechanical) and will be product review in upcoming Fly-RC magazine.

Tom Hunt

PS, all my "landing gear" twins now use differential power for steering on the ground!

PS..PS.. The p-38 has counter rotating 3 blades!

[CUBANO8]

Also have stock (Hobby Lobby stock powered that is) FSK-p-38 and BF-110
The BF-110 has retracts (mechanical) and will be product review in upcoming Fly-RC magazin


Cool!! look forward in seeing it!

Very nice, Tom

[gearup]

Tom,

is the -38 your design...?? post pics of YOUR D-18 too!! I really like mine! ( Tom does a NICE and I mean NIIIIICE Twin Beech/C-45 !!)

[Tom Hunt]

Tom,

is the -38 your design...?? post pics of YOUR D-18 too!! I really like mine! ( Tom does a NICE and I mean NIIIIICE Twin Beech/C-45 !!)

No, the P-38 as well as all the other models in that picture are FSK.

I hope to resurect my D-18 this winter. Strip and recover, and re-motor with axi brushless and retracts.

Tom

[Herb]

Tom, did you have any luck running your twin-axi powered twins on a single brushless controller?

If so, what setup?


Galaxy models makes some nice s400/s480 sized twins (DH Mosquito, DH-88, W. Whirlwind):

http://www.galaxymodels.co.uk/new/results.asp?subt=Galaxy%20Kits


I built their DH-88 Comet and it was faaast already five years ago :eek:


.

[Bison]

I flew my new FlyingStyro P-38 for first time yesterday. The set-up is as recommended by Hobby Lobby. The plane had ample power and showed little or no tendency to torque on the hand launching. The P-38 was actually much easier to fly than my Alfa La-7. I used Tom Hunt's idea of mounting the 2 1320mah batteries vertically under the cockpit and I didn't have any trouble balancing the plane.

[Tom Hunt]

Tom, did you have any luck running your twin-axi powered twins on a single brushless controller?



Herb

No, all my brushless twins use two controllers. I tried one (a number of brands) but could not get both the start reliably on the ground.

Though more expensive, and of course a little heavier, two ESC's have a great advantage of allowing you to use differential throttle for steering on the ground. It became necessary on the BF-110 as it does not have rudders (and on this model not easy to actuate) A steerable tailwheel (and the extra servo) also adds cost and weight.

Now if i could just get a prop to feather..... I could do some great engine out stuff and restarts!

Tom

[J Morgan]

My twins:
Bf-110 - built from Gus Morfis plan 44"
Pe-2 - scaled up from Mike Midkiff plan 49"
Me-262 - scaled up from Morfis plan ( 3 short flights, still working on trim) 61"
P-38 - from Jim Ryan plans- great flier
B-25 - from M. Rittinger plans ( bit the dust when one spur gear stripped out and torqued in)

J

[SPEED-E-FLYER]

Posted this in the power fourm and got no help.

Got me a new AXI 2820/10 to go with my existing Axi for my Aeronaut F7F-3 Tigercat and ran into a problem
The new motor has a different size casing.
Need to insure both motor have the same output.
Does anyone have any knowledge of the difference between motors.
Will have to tach them to see if they have the same RPM and check the amp draw.
Got hold of a couple APC 3 bladed 9x6 but think I might get a bit more thrust out of a bigger 2 bladed prop.

Don't want to have different thrust motors inducing unwanted yaw.

Larry

[fredok]

Hi Larry,

there is always a small différence on the electric motors. I have two axi 2814/12 in my tigercat, and there is about 50/75rpm of difference between the two motors, and they are of the same production run. Note it's note noticiable in flight, but higher it would be !!!
I think you better look for the same "case" for your axi 2820/10, or conduct bench test to insure they turn the same way..... I think it should be usefull.

regards

Fred

[diver don]

Could that Axi be the new "Silver Series" that they just announced?
Sure looks like the ads I have seen.
The Silver Series has been described as a "Economy" Axi, whatever that means.

DD

[SPEED-E-FLYER]

Hey Fred
How does you Tigercat fly with the Axi 2814/12s
The silver color one is the older version

Larry

[pdawg]

I have a question for all of you,

I have a Bridi Tigercat kit that is destined to be brushless powered. Is there a product available to link the separate power systems? This would be relivant in the event of a thermal shutdown or low voltage situation. I want to be sure the motors are either both on or both off!

[SPEED-E-FLYER]

Plug the ESC's into Y harness is the only way I know.
I plan not to fly so long as to worry about the low voltage cut-off.
Same with the Thermal Shutdown. I will be prop below maximum. recommend amp draw.

Larry

[fredok]

Larry,

With the 2814/12 (old series as your silver one)and 9.5*6 aeronaut props hand launch is no problems on 8 nicad/nimh sub C cells. Total draw around 40amps
Both motors are in Aeronaut 600 front motor mount, they are perfect for axi 28 series.... A good thing to know.
The Tigercat is a great Flyer, it's a rock in flight. Ailerons are a delight, rudder as good as need it, and elevators OK.
I run the motors with 2 controllers, old but really soft MGM comPro TMM 40-3PH.
I've disconnect bec, and use a separate battery for receiver....
This lead to a heavy plane at 2.300Kg.

Fred

[SPEED-E-FLYER]

Thnaks Fred
I am planning on using lipos to help with the weight.
I also have landing gear on my Tigercat

Will try to get it done soon

Larry

[Eric.Payan]

My twin : A 40th french bomber : the Amiot 143.

[Dorme]

Eric, tells a bit about the Amiot. A most unusual model and it looks like you detailed it as well.

[Eric.Payan]

The Amiot 143 was a French medium bomber (1935-1940) : http://avions.legendaires.free.fr/amiot143.php

My plane is one of my oldest model (4 years old) and many fly. The plane is 1,5m wing span, 1,5 kg. After several engines (400, permax 480) the plane is now flying with two cheap brushless (two controlers) and 6A, 11V Lipo battery (3s5p Etec 1200) with give a very long flying time (>20 minutes)

The plane is strange to flight, this very thick wing (Naca 4415) with more than 30cm chord (scale) and a high body give strange result : at low speed during turn the plane can sudendly decide to turn on the other side :mad:


Bye

[David Hogue]

No, the P-38 as well as all the other models in that picture are FSK.

I hope to resurect my D-18 this winter. Strip and recover, and re-motor with axi brushless and retracts.

Tom


Tom,

How is the build on the D-18? Is it very prone to snapping if slowed down too much with such a tapered wing? How much for the vac formed parts? I would love to have a Twin Beech or Electra.

Thanks,
David