Thrust Mod For Stick Planes?

Murocflyer · Feb 01, 2008, 02:46 AM

If someone made a 3 degree down and 3 degree right thrust mod adapter for the slow stick or any of the other stick planes they would be rich.

I usually make my own by hand from redwood pieces, but it's a pain to do.

Is anyone making a decent one that can be used for on the Slow Stick, DuskStick, Stevens Aero Stick or the dozens of other "stick" planes that can be made of the aluminum SS fuselage?

Links would be a bonus. I know there must be someone, somewhere making these.

I'd like to mount this style of motor to it.

Thanks,

Frank

ImaBiggles · Feb 01, 2008, 09:22 AM

Quote:

Originally Posted by murocflyer

If someone made a 3 degree down and 3 degree right thrust mod adapter for the slow stick or any of the other stick planes they would be rich.

I usually make my own by hand from redwood pieces, but it's a pain to do.

Is anyone making a decent one that can be used for on the Slow Stick, DuskStick, Stevens Aero Stick or the dozens of other "stick" planes that can be made of the aluminum SS fuselage?

Links would be a bonus. I know there must be someone, somewhere making these.

I'd like to mount this style of motor to it.

Thanks,

Frank

Of all things I find difficult, a thrust angle adapter isnt one of them. I simply use 3/8" square stock and hit it with the belt sander on the sides (top left for down/right mod). the removal of the material makes it easy to put into a stick adapter. A couple of screw and perhaps a shim on the non-sanded side and Im done in 3 minutes.

magic612 · Feb 01, 2008, 09:55 AM

Here's what I do:

Take 3/8" square stock, cut to desired length
Determine how far back on stick it must be glued to plane, and mark there.
Determine what thickness a shim must be to point stick down 3 degrees
Glue shim on motor mount stick
Then I glue the stick onto the plane at 3 degrees to the right. (I do keep the aft section of the stick offset to the left, so that motor / prop sits close to centered.)

Then any motor mount with a 3/8" square section will slide right on / off, to be held in place with a set screw. Since I swap various motors on and off lots of planes, this simplifies and speeds up this process.

One helpful aspect to this is that it typically places the shaft of the motor in a more centered position relative to the fuse itself, instead of being offset up or down.

The other nice thing about this set up is that if I do somehow manage to nose the plane in (which fortunately is rare these days), the motor mount snaps off the fuse, saving the prop shaft.

Murocflyer · Feb 01, 2008, 10:06 AM

I understand all this and like I said, and do make my own out of redwood stock I get from Home Depot. This is normally the only thing that survives if I bite it big.

The thing that I am wondering, based on all the far reaching contacts we have here on RCG, is that someone, somewhere might have seen someone that makes these thrust mods.

Frank

flypaper 2 · Feb 01, 2008, 10:37 AM

Don't know how you you could make one fit all as different planes need different amts. of down and side thrust, unless you could make it adjustable, which is'nt impossible. I make mine from plastic kitchen cutting board wacked out on the bandsaw. Nearly indestructable.

Gord.

Dakrat · Feb 01, 2008, 05:07 PM

I saw a mount that you could adjust the thrust deg for stick mounts. I will have to search around a bit to find it. Maybe I saw it around here???
Dak...

hot glue · Feb 01, 2008, 05:14 PM

For the sticks I wouldnt wory about it. My uncle has a park 480 in it and its fine.

Murocflyer · Feb 01, 2008, 10:54 PM

Tough one, isn't it? I've been looking for a long time also.

Frank

Murocflyer · Feb 02, 2008, 03:03 PM

These are probably the coolest/strongest motor mounts going, but alas, no thrust mod.

http://www.strongrcmotors.com/Mounts.htm

Frank

Pudknocker71 · Feb 02, 2008, 08:06 PM

I've flown mine with down and right. Found the right just made it pull to the right. I straitened it out to pull straight and true. Left the down in because it noses up at WOT.

It would be easy to cut the top part off the motor mount and drill the fuselage with a bit of down angle. You would need to drill two holes to hold that angle.

Murocflyer · Feb 09, 2008, 03:01 PM

I guess everyone that owns a "stick" plane must fabricate their own stick mounts.

That's interesting. Looks I will continue to do that also.

Frank

zabond · Feb 09, 2008, 05:54 PM

For adjustable down thrust I use GWS aloy stick mount with a 3mm taped hole in the top[behind the front through mounting bolt] -grind down the head of a 3mm bolt til its about 1mm thick fit the bolt with the head against the stick and put a locking nut on the top side,you can then adj bolt up/down to try diff thrust angles[after prop size changes]
Russ

goofeyfoot · Mar 18, 2008, 12:15 PM

Hi All:

I have one of those plastic motor mounts that you get from Heads Up RC. I think they were originally made for some sort of brushed motor but I have an outrunner bolted to mine.

That mount goes onto the fuse. The fuse is that black plastic stuff that came with the GWS kit. A bolt (or maybe two bolts, can't remember) goes through the mount to hold the mount on the fuse stick.

Anyway, I really need down/right thrust. Given what I am using for equipment, discussed above, what is the best way for me to get the thrust angles I am looking for?

Maybe you could send a photo if you have one that will work with my setup?

Thanks for your help.

Michael

Sir Raleigh · Mar 18, 2008, 01:21 PM

I don't have one of those mounts so no photo available, but I visualize cutting a round disc of plywood, or something similar, and gluing it into the plastic circle. Then bolt the firewall mount to the plywood orienting the two screws that are closest together on top. You should be able to put some washers under the top-right screw (while facing the front of the plane). This should point the motor down and to the left. (Looking at this from the pilot's view, the motor would be down and to the right.) Add/subtract washers to get the proper angle.

Bill

fhhuber506771 · Mar 18, 2008, 01:32 PM

For wood sticks mounting the motor in the original post...

Shave a wedge off the side you want to shift AWAY from and glue that same wedge back on the opposite side of the stick. You will have shifted the thrust line by the wedge angle. (you could also sand the wedge off... glue on just a shim at the front opposite side and it will work)

For aluminum sticks... you can sometimes put the fuselage in a vice about 1 inch behind where the motor mounts and use "square pipe" slip fit over where the motor mounts to bend in the desired thrust angle change. You could also file the wedge angle off and shim the opposed side.

Where there is a will... there is a way.

Feb 01, 2008, 02:46 AM	#1
Murocflyer See Us On Wikipedia Join Date: Nov 2005 Location: East Virginia Posts: 17,851	Thrust Mod For Stick Planes? If someone made a 3 degree down and 3 degree right thrust mod adapter for the slow stick or any of the other stick planes they would be rich. I usually make my own by hand from redwood pieces, but it's a pain to do. Is anyone making a decent one that can be used for on the Slow Stick, DuskStick, Stevens Aero Stick or the dozens of other "stick" planes that can be made of the aluminum SS fuselage? Links would be a bonus. I know there must be someone, somewhere making these. I'd like to mount this style of motor to it. Thanks, Frank Attached Thumbnails 33.5 KB · Views: 62

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Feb 01, 2008, 09:55 AM	#3
magic612 Bernoulli+Newton=Lift Join Date: Jan 2006 Location: Somewhere south of Chicago, IL Posts: 1,830	Here's what I do: Take 3/8" square stock, cut to desired length Determine how far back on stick it must be glued to plane, and mark there. Determine what thickness a shim must be to point stick down 3 degrees Glue shim on motor mount stick Then I glue the stick onto the plane at 3 degrees to the right. (I do keep the aft section of the stick offset to the left, so that motor / prop sits close to centered.) Then any motor mount with a 3/8" square section will slide right on / off, to be held in place with a set screw. Since I swap various motors on and off lots of planes, this simplifies and speeds up this process. One helpful aspect to this is that it typically places the shaft of the motor in a more centered position relative to the fuse itself, instead of being offset up or down. The other nice thing about this set up is that if I do somehow manage to nose the plane in (which fortunately is rare these days), the motor mount snaps off the fuse, saving the prop shaft.

Feb 01, 2008, 10:06 AM	#4
Murocflyer See Us On Wikipedia Join Date: Nov 2005 Location: East Virginia Posts: 17,851	I understand all this and like I said, and do make my own out of redwood stock I get from Home Depot. This is normally the only thing that survives if I bite it big. The thing that I am wondering, based on all the far reaching contacts we have here on RCG, is that someone, somewhere might have seen someone that makes these thrust mods. Frank

Feb 01, 2008, 10:37 AM	#5
flypaper 2 Gord Join Date: Jun 2004 Location: Kingston, Canada Posts: 4,967	Don't know how you you could make one fit all as different planes need different amts. of down and side thrust, unless you could make it adjustable, which is'nt impossible. I make mine from plastic kitchen cutting board wacked out on the bandsaw. Nearly indestructable. Gord.

Feb 01, 2008, 05:07 PM	#6
Dakrat Sky good, Earth bad! Join Date: Dec 2005 Location: Anchorage Posts: 834	I saw a mount that you could adjust the thrust deg for stick mounts. I will have to search around a bit to find it. Maybe I saw it around here??? Dak...

Feb 01, 2008, 05:14 PM	#7
hot glue Who says' EPP dont break? Join Date: Jun 2007 Location: Minnesota Posts: 1,779	For the sticks I wouldnt wory about it. My uncle has a park 480 in it and its fine.

Feb 01, 2008, 10:54 PM	#8
Murocflyer See Us On Wikipedia Join Date: Nov 2005 Location: East Virginia Posts: 17,851	Tough one, isn't it? I've been looking for a long time also. Frank

Feb 02, 2008, 03:03 PM	#9
Murocflyer See Us On Wikipedia Join Date: Nov 2005 Location: East Virginia Posts: 17,851	These are probably the coolest/strongest motor mounts going, but alas, no thrust mod. http://www.strongrcmotors.com/Mounts.htm Frank

Feb 02, 2008, 08:06 PM	#10
Pudknocker71 ...back to reality. Join Date: Oct 2007 Location: Debary, Fl. Posts: 2,124	I've flown mine with down and right. Found the right just made it pull to the right. I straitened it out to pull straight and true. Left the down in because it noses up at WOT. It would be easy to cut the top part off the motor mount and drill the fuselage with a bit of down angle. You would need to drill two holes to hold that angle.

Feb 09, 2008, 03:01 PM	#11
Murocflyer See Us On Wikipedia Join Date: Nov 2005 Location: East Virginia Posts: 17,851	I guess everyone that owns a "stick" plane must fabricate their own stick mounts. That's interesting. Looks I will continue to do that also. Frank

Feb 09, 2008, 05:54 PM	#12
zabond old aussie Join Date: Feb 2007 Location: neerim east victoria australia Posts: 297	For adjustable down thrust I use GWS aloy stick mount with a 3mm taped hole in the top[behind the front through mounting bolt] -grind down the head of a 3mm bolt til its about 1mm thick fit the bolt with the head against the stick and put a locking nut on the top side,you can then adj bolt up/down to try diff thrust angles[after prop size changes] Russ

Mar 18, 2008, 12:15 PM	#13
goofeyfoot Registered User Join Date: Jan 2002 Location: North Carolina Posts: 61	Hi All: I have one of those plastic motor mounts that you get from Heads Up RC. I think they were originally made for some sort of brushed motor but I have an outrunner bolted to mine. That mount goes onto the fuse. The fuse is that black plastic stuff that came with the GWS kit. A bolt (or maybe two bolts, can't remember) goes through the mount to hold the mount on the fuse stick. Anyway, I really need down/right thrust. Given what I am using for equipment, discussed above, what is the best way for me to get the thrust angles I am looking for? Maybe you could send a photo if you have one that will work with my setup? Thanks for your help. Michael

Mar 18, 2008, 01:21 PM	#14
Sir Raleigh Registered User Join Date: Apr 2007 Location: Raleigh, NC Posts: 4,092	I don't have one of those mounts so no photo available, but I visualize cutting a round disc of plywood, or something similar, and gluing it into the plastic circle. Then bolt the firewall mount to the plywood orienting the two screws that are closest together on top. You should be able to put some washers under the top-right screw (while facing the front of the plane). This should point the motor down and to the left. (Looking at this from the pilot's view, the motor would be down and to the right.) Add/subtract washers to get the proper angle. Bill

Mar 18, 2008, 01:32 PM	#15
fhhuber506771 Deletedfor proving Nauga wrong Join Date: Mar 2005 Location: Posts: 15,865	For wood sticks mounting the motor in the original post... Shave a wedge off the side you want to shift AWAY from and glue that same wedge back on the opposite side of the stick. You will have shifted the thrust line by the wedge angle. (you could also sand the wedge off... glue on just a shim at the front opposite side and it will work) For aluminum sticks... you can sometimes put the fuselage in a vice about 1 inch behind where the motor mounts and use "square pipe" slip fit over where the motor mounts to bend in the desired thrust angle change. You could also file the wedge angle off and shim the opposed side. Where there is a will... there is a way.