RE: Balsa USA enforcer

RE: Balsa USA enforcer
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RE: Balsa USA enforcer - 6/13/2007 5:45:31 AM

fullmoon_sg

Posts: 38
Joined: 12/1/2006
From: Singapore, SINGAPORE
Status: offline

Thanks Joe. Will do as what you have suggested. Btw, do you happen to know where I can buy the starter nut for my Byrojet fan? Regards.

(in reply to joeflyer)

Post #: 401

RE: Balsa USA enforcer - 6/13/2007 12:50:43 PM

joeflyer

Posts: 1488
Joined: 12/15/2001
From: Plymouth, MI, USA
Status: offline

There is no special starter nut. The "prop nut" that comes with the engine is used to hold the fan rotor on the engine. My starter wand has a 12 mm. deep socket (for OS91) on the end of it that fits over that nut to spin the engine. It is recommended that you put some Locktite on the crankshaft threads and make sure that it is on tight so that it doesn't come loose when starting.

Joe

(in reply to fullmoon_sg)

Post #: 402

RE: Balsa USA enforcer - 6/13/2007 2:32:29 PM

fullmoon_sg

Posts: 38
Joined: 12/1/2006
From: Singapore, SINGAPORE
Status: offline

Roger that. Look like I'm actually looking for starter wand. Does this type of wand is available at hobby shop or home-made. Appreciate it if you could direct me when can I get it. I really face a problem of starting OS 91 with my Tahmazo 210 electric starter. Cheers.

(in reply to joeflyer)

Post #: 403

RE: Balsa USA enforcer - 6/13/2007 3:51:10 PM

joeflyer

Posts: 1488
Joined: 12/15/2001
From: Plymouth, MI, USA
Status: offline

Byron doesn't make them any more. You could try putting a Wanted ad in the RCU Classified section. I'm sure that there are a number of them out there that are no longer being used. Theirs is nice because it has a cone at the fan end to help center it on the fan bolt and has a one-way clutch bearing.

I made my first one out of a steel shaft long enough to stick out of the tailpipe a bit. I forgot the shaft diameter (about 1/4" to 3/8"

. Drill and tap each end. Bolt a 12 mm. deep socket to one end, use an allen head bolt. Insert a small diameter piece of tubing over the shaft so that you can hold on to it while it's spinning (PVC works well). On the other end attach a small aluminum spinner. Put the socket over the fan bolt, with someone holding the plane for you, push your starter cone against the spinner to turn over the engine.

Joe

< Message edited by joeflyer -- 6/13/2007 3:52:54 PM >

(in reply to fullmoon_sg)

Post #: 404

RE: Balsa USA enforcer - 6/13/2007 5:56:04 PM

FLIGHTJOCKEY

Posts: 20
Joined: 3/15/2005
From: Palm Desert, CA, USA
Status: offline

check with bob violet, yellow aircraft and rc jets http://rcjetmodels.com/?OVRAW=scale%20r%2Fc%20cockpits&OVKEY=rc%20jets&OVMTC=advanced

they still may carry them, if not I can build one for you 50.00 plus 8.oo for shipping I have a fu machine shop Ill just need to know what size nut you have on OS like joe said its 12 mm but also could be 1/2" depends on the age of it,
I have bult a few that screw directly on to the shaft of your starter, in many cases you can just buy a xtra starter and ust it only for your fan unit they are cheep.

let me know if you cannot find one its no problem to build

Bill

760 485 1971

(in reply to fullmoon_sg)

Post #: 405

RE: Balsa USA enforcer - 6/13/2007 7:29:16 PM

joeflyer

Posts: 1488
Joined: 12/15/2001
From: Plymouth, MI, USA
Status: offline

Bill,
He needs a Byron type starting wand that will engage a 12 mm. bolt. If any of the firms you mentioned happen to have a starting wand it would be the type for a tractor fan (BVM, Dynamax, Ramtec) made to engage an allen head bolt and wouldn't work for him.

I'm sure you could make one similar to what I described above, just wanted to make sure you knew which type he needs. Also since fullmoon_sg is in Singapore the shipping is likely to be more than $8.00.

Joe

(in reply to FLIGHTJOCKEY)

Post #: 406

RE: Balsa USA enforcer - 6/13/2007 9:52:02 PM

FLIGHTJOCKEY

Posts: 20
Joined: 3/15/2005
From: Palm Desert, CA, USA
Status: offline

thanks Joe, it was fairly easy to make one since I have a small machine shop in my garage I just used one of my spare starters and made that one only for my fan unit took me about hr to make it, it works great

Bill

(in reply to joeflyer)

Post #: 407

RE: Balsa USA enforcer - 6/14/2007 2:12:56 AM

fullmoon_sg

Posts: 38
Joined: 12/1/2006
From: Singapore, SINGAPORE
Status: offline

Thanks Bill and Joe for the advice.

In fact, a few months ago, I have bought a brand new set of Dynamax Fan, Engine, JMP tuned-pipe and starting wand from a friend. Initially, I thought of converting the Enforcer using tractor fan. But after much consideration, I think it would be more appropriate to use a Byrojet fan because of many successful stories.

After what Joe has suggested, I might want to try to modify my Dynamax starting wand to fit for using in Byrojet fan. Cheers.

(in reply to FLIGHTJOCKEY)

Post #: 408

RE: Balsa USA enforcer - 6/15/2007 5:13:45 PM

fullmoon_sg

Posts: 38
Joined: 12/1/2006
From: Singapore, SINGAPORE
Status: offline

Hi guys,

I would like to check whether I should sheet the wing with 3/32" balsa at the centre of the wing and 1/16" balsa for the rest of the parts. Or should I just sheeting the wing with 3/32" wing? My setup is

Byrojet fan with OS 91VR-DF
Robart Retract
2 X HS85MG for aileron and 2 X HS225BB for elevator.

Thanks,

John

(in reply to fullmoon_sg)

Post #: 409

RE: Balsa USA enforcer - 6/18/2007 4:16:19 PM

FLIGHTJOCKEY

Posts: 20
Joined: 3/15/2005
From: Palm Desert, CA, USA
Status: offline

John,. I would use 3/32 to sheeing on the entire plane, I did with mine, makes it more stronger ad dont add that much weight, better to be safe than sorry, also pay close attention to the direction you place the sheeting, follow the instructions closely

Bill

(in reply to fullmoon_sg)

Post #: 410

RE: Balsa USA enforcer - 6/19/2007 12:55:34 AM

joeflyer

Posts: 1488
Joined: 12/15/2001
From: Plymouth, MI, USA
Status: offline

I agree with Bill. Sheet the entire wing with 3/32", mine is done that way too. After sanding 1/16" would be too thin.

HS85's might be a little weak for the ailerons. I used 6 HS225's, two each on ailerons, elevator, and rudders. They work OK, but I had one fail on me and they don't return to center as reapeatably as I'd like. I used JR DS811's on my Turbine Enforcer and have been very happy with them. They are an inexpensive digital servo. The precise control and centering is far superior to the HS225. After this I'm sold on digital servos. I believe the DS811 has been replace by the DS821 which should work as well.

Joe

(in reply to FLIGHTJOCKEY)

Post #: 411

RE: Balsa USA enforcer - 6/19/2007 4:35:27 PM

fullmoon_sg

Posts: 38
Joined: 12/1/2006
From: Singapore, SINGAPORE
Status: offline

Thanks Bill and Joe for the advice.

I have more or less "embedded" my servos inside the wing and it would make some efforts to re-mount the appropriate servos. Therefore, I've planned to convert the standard setup (i.e aileron and elevator) to elevons. Hope it will do the job well.

Here are some of my update.

Attachments

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< Message edited by fullmoon_sg -- 6/19/2007 4:36:07 PM >

(in reply to joeflyer)

Post #: 412

RE: Balsa USA enforcer - 6/20/2007 7:45:34 PM

FLIGHTJOCKEY

Posts: 20
Joined: 3/15/2005
From: Palm Desert, CA, USA
Status: offline

Elevons work well, I use them in my f 117 this way you only need 2 servos,, just make sure you use a good strong one as Joe says. you will have more contro surface to control, and use at least 4-40 rod 256 will be way too small, as you know the shorter the rod the less flex you will have, and you dont want to get any flutter or reflex action with elevons I usually have them set up about 1/8" for trim purpose,
helps the lane fly more straiget and you usually dont have to fight the trim at first
good luck and keep the photos comming so we can see it finished

Bill

(in reply to fullmoon_sg)

Post #: 413

RE: Balsa USA enforcer - 6/27/2007 2:49:30 PM

marwen1

Posts: 772
Joined: 3/25/2004
From: WINNIPEGMB, CANADA
Status: offline

quote:

ORIGINAL: AirGar

He's got an OS 46 FX with a tune pipe strapped on, and let me tell ya......this little thing HAULS ASS. HOLY MOLY, I think it's darn near as fast as my 60 F-20/Jett 90 combo!

I'm seriously considering building one for myself. (would probably be a lot lighter too, as the one in the pics was all fiberglassed and painted)

Best of luck, whatever way you go!

Gary

Gary: I know this post is about 3 plus years later, but, I have scratch bult about 3 - 4 of these FORCE ONE's -- each time I throw a little more power into the engine.

Right now, I am just winding up skinning a 60" version (again, scratch) I have an old ROSSI .61cc that has been bored out to .81cc
I plan on putting on it.

Finding a good CG for this has always been a fun deal but nevertheless,

What kind of spped do ya think I'll get out of the .81?

also

Give me an idea of what kind of color scheme I should go for.

marwen1

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(in reply to AirGar)