Hkm 1:2.5 Asw 28

scalebldr · Jul 28, 2006, 03:31 PM

Any one besides myself and Dan Troxel getting the new HKM ASW 28? I thought I might start a build log so we all could stay intouch as we build our models. I think John told me that 2 more are comming to the US.
Rick

SteveR · Aug 25, 2006, 10:47 AM

Rick, why stop at 7 meters when you can go straight to a 9 meter fully molded 9 meter ASW-28?! Check out this beauty spotted in Interlaken this summer. It was nothing less than spectacular!

Regards,

Steve

scalebldr · Aug 26, 2006, 12:07 PM

Ya thats a big ship, but for now 7.2 meters is manageable. Do you know who the maker IS?
Rick

SteveR · Aug 28, 2006, 08:23 AM

Rick, I know it's a German builder but that's all the info I have other than saying it's pretty awesome in the air. When you or Dan is re ready to trade up to the next larger size, let me know and I'll do some more research.

Regards,

Steve

scalebldr · Sep 02, 2006, 11:52 AM

And now we are 4, Dick Gustafson from Santa Monica is also getting the new ASW 28. Both Dick and my models should be getting here in about 10 days.

Dick also has a 1:3 Wilga with a DA 150.

Recived my Axel pilot and insturments yesterday. Got my 7 ch Competition
Power Box control system with 2 3300 mh Ni Ml bats from Aircraft Int. http://www.aircraftinternational.com/powerbox_index.htm. .

Next have to decide what servos to use. Realy looking forward to this build.

Rick

hkm-usa · Sep 23, 2006, 01:11 PM

Hi guys, I thought I'd share which servos I used for my 28. I tried for quality, torque, and economy and found what works for me.

BTW, there are now 5 asw 28's

elevator, HS 5945. this is now replaced by the HS 5985.
Rudder, Flaps, inboard and outboard Ailerons (7 total) HS 5645
Spoilers HS 5245 (2)
Retract servo HS 805

towrelease, Multiplex bb profi (it had enough torque and I had it allready)

the 5645 in the outboard ailerons is a bit of a squeeze, you will have to slide it under the wingskin towards the spar to make it fit, but I wanted the ailerons to have lots of power and be matched to the inboard aileron. I couldn't use the frame I made for them, but came up with something else.

I have also replaced the batteries with two 4300mah 5 cell packs

this is what I used with the funds avaliable.

hkm-usa · Sep 23, 2006, 01:22 PM

here a picture of the fuse to wing plug and the fuse install

JL

SteveR · Sep 26, 2006, 08:38 AM

John, why did you decide to use the Aeroflug power distribution system in your 28? What are its key features?

TIA,

Steve

hkm-usa · Oct 02, 2006, 12:53 AM

hey Steve,
it is the only power supply out there that will supply 12 seperate channels. it will do 2 servos per channel as well for a total of 24 servos (I use 12) the rest of the features are pretty standard, dual power supply up to 14 amps etc....

12 servos all under load can pull upwards of 10 amps, your reciever bus is good for 5 ish, hence the power distributor.

with the profi 4000 and a 12 channel reciever, every servo is individually adjustable.

not to mention...
it is about half the price of the next one down, emcotec etc...which has provisions for 10 channels or less.. while it can supply 32 servos, they are not individually adjustable.

SteveR · Oct 02, 2006, 09:12 AM

Thanks for the info John, greatly appreciated. Please let me know what do you mean by "each servo is individually adjustable"? Also, does this system include signal filtering e.g. what the round ferrites ususally do?

TIA,

Steve

scalebldr · Oct 17, 2006, 03:34 PM

Received my 28 two weeks ago, photos attached. I was very happy to see the quality of this ship; the photos don't do it justice, many thanks John! At HKM USA. http://www.hkm-models.com/

It was great that HKM was willing to make the model with my own graphics, I chose to go with a Swiss version, with my letter font and numbers.

The kit comes with all the bits you need to assemble with bags of goodies.
less RC equipment and Cockpit detailing.

Over the past few months I have been collecting Hitec servos, Jr 10 ch Syn RX. Got Axel pilot 1.2.5 scale, and instruments for the cockpit. http://www.axels-scale-pilots.de/

Photos of a full size ASW 28 and 29 that I took at a recent event at Warner Springs CA.

A 7 ch Competition Power Box system that comes with two 3300 nm batteries and a digital switch from Aircraft Int. http://www.aircraftinternational.com/powerbox_index.htm

Landing gear install up next.

scalebldr · Oct 17, 2006, 11:30 PM

Before I sound to nuts, just understand all the stuff I show you on this building loge is meant to express ideas and not to make the building of your 28 an exact science, this is meant to aid and exchange ideas with all. I will assume that all of us by now know now how to build at this level. I will try to show all the details in photos. When in doubt, ask a question, your humble servant.

The Kit comes with a retract installed. You have to mount the servo.

In this case I used a Hitec 5945 digital servo. I also fabricated a brake
system using a second 5945 digital.

I used some left over servo mounts from Hock, you could use any aluminum
right angel extrusion that’s light weight from the hardware store, the same as in John's photo. The linkage is a carbon aero shaft with 4 /40 all thread inside with 4/40 ball links at each end.

The brake system is made with a brake kit from Fema Modelltechnik that fits a 127 MM wheel. The rest is made from 1/8" aluminum plate and 1/2" round rod. After mounting the servo and linkage I used braded fishing wire to connect the bell crank to the brake arm. This is done so the retract can rotate up and down and still have a positive connection to the brake.
http://www.fema-modelltechnik.de/

One thing I would recommend, the aluminum collet on the main shaft that has a recessed 4mm alien screw that needs to be replaced with a 4mm external socket screw. Also make a flat spot on the shaft so the screw will seat and prevent it from rotating, this is done after you find the proper movement of the retract.

BFN
Rick

Big Nuts 181 · Oct 24, 2006, 02:43 AM

hi there scale builder I have a question, how are the hinges done on the gear doors of your 28??

scalebldr · Oct 25, 2006, 03:29 PM

Here is a drawing of a way to install gear doors on a 1/4 scale ship and its the same way its done on the 28 with a minor change. You use tubing and piano wire to make the hinge. Also you can use one length instead of two seperate pieces, its easyer to keep the alignment for the center line of the hinge.
Rick

Big Nuts 181 · Oct 26, 2006, 04:46 AM

how easy is that! hey thanks for the reply, hows the model coming along is she in the air yet?

Jul 28, 2006, 03:31 PM	#1
scalebldr scalebldr Join Date: Nov 2005 Location: Long Beach, Ca Posts: 160	Hkm 1:2.5 Asw 28 Any one besides myself and Dan Troxel getting the new HKM ASW 28? I thought I might start a build log so we all could stay intouch as we build our models. I think John told me that 2 more are comming to the US. Rick

Aug 25, 2006, 10:47 AM	#2
SteveR Registered User Join Date: Feb 2002 Location: New York Posts: 1,870	Rick, why stop at 7 meters when you can go straight to a 9 meter fully molded 9 meter ASW-28?! Check out this beauty spotted in Interlaken this summer. It was nothing less than spectacular! Regards, Steve Attached Thumbnails 87.3 KB · Views: 1229

Sep 02, 2006, 11:52 AM	#5
scalebldr scalebldr Join Date: Nov 2005 Location: Long Beach, Ca Posts: 160	Now we are Four And now we are 4, Dick Gustafson from Santa Monica is also getting the new ASW 28. Both Dick and my models should be getting here in about 10 days. Dick also has a 1:3 Wilga with a DA 150. Recived my Axel pilot and insturments yesterday. Got my 7 ch Competition Power Box control system with 2 3300 mh Ni Ml bats from Aircraft Int. http://www.aircraftinternational.com/powerbox_index.htm. . Next have to decide what servos to use. Realy looking forward to this build. Rick

Sep 23, 2006, 01:11 PM	#6
hkm-usa Registered User Join Date: Nov 2004 Location: Arlington, Texas Posts: 139	asw 28 servos Hi guys, I thought I'd share which servos I used for my 28. I tried for quality, torque, and economy and found what works for me. BTW, there are now 5 asw 28's elevator, HS 5945. this is now replaced by the HS 5985. Rudder, Flaps, inboard and outboard Ailerons (7 total) HS 5645 Spoilers HS 5245 (2) Retract servo HS 805 towrelease, Multiplex bb profi (it had enough torque and I had it allready) the 5645 in the outboard ailerons is a bit of a squeeze, you will have to slide it under the wingskin towards the spar to make it fit, but I wanted the ailerons to have lots of power and be matched to the inboard aileron. I couldn't use the frame I made for them, but came up with something else. I have also replaced the batteries with two 4300mah 5 cell packs this is what I used with the funds avaliable. Attached Thumbnails 93.9 KB · Views: 742

Sep 23, 2006, 01:22 PM	#7
hkm-usa Registered User Join Date: Nov 2004 Location: Arlington, Texas Posts: 139	here a picture of the fuse to wing plug and the fuse install JL Attached Thumbnails 86.7 KB · Views: 561 62.0 KB · Views: 715

Aug 26, 2006, 12:07 PM	#3
scalebldr scalebldr Join Date: Nov 2005 Location: Long Beach, Ca Posts: 160	Ya thats a big ship, but for now 7.2 meters is manageable. Do you know who the maker IS? Rick

Aug 28, 2006, 08:23 AM	#4
SteveR Registered User Join Date: Feb 2002 Location: New York Posts: 1,870	Rick, I know it's a German builder but that's all the info I have other than saying it's pretty awesome in the air. When you or Dan is re ready to trade up to the next larger size, let me know and I'll do some more research. Regards, Steve

Sep 26, 2006, 08:38 AM	#8
SteveR Registered User Join Date: Feb 2002 Location: New York Posts: 1,870	John, why did you decide to use the Aeroflug power distribution system in your 28? What are its key features? TIA, Steve

Oct 02, 2006, 12:53 AM	#9
hkm-usa Registered User Join Date: Nov 2004 Location: Arlington, Texas Posts: 139	hey Steve, it is the only power supply out there that will supply 12 seperate channels. it will do 2 servos per channel as well for a total of 24 servos (I use 12) the rest of the features are pretty standard, dual power supply up to 14 amps etc.... 12 servos all under load can pull upwards of 10 amps, your reciever bus is good for 5 ish, hence the power distributor. with the profi 4000 and a 12 channel reciever, every servo is individually adjustable. not to mention... it is about half the price of the next one down, emcotec etc...which has provisions for 10 channels or less.. while it can supply 32 servos, they are not individually adjustable.

Oct 02, 2006, 09:12 AM	#10
SteveR Registered User Join Date: Feb 2002 Location: New York Posts: 1,870	Thanks for the info John, greatly appreciated. Please let me know what do you mean by "each servo is individually adjustable"? Also, does this system include signal filtering e.g. what the round ferrites ususally do? TIA, Steve

Oct 17, 2006, 03:34 PM	#11
scalebldr scalebldr Join Date: Nov 2005 Location: Long Beach, Ca Posts: 160	Getting Started 10/17/06 Received my 28 two weeks ago, photos attached. I was very happy to see the quality of this ship; the photos don't do it justice, many thanks John! At HKM USA. http://www.hkm-models.com/ It was great that HKM was willing to make the model with my own graphics, I chose to go with a Swiss version, with my letter font and numbers. The kit comes with all the bits you need to assemble with bags of goodies. less RC equipment and Cockpit detailing. Over the past few months I have been collecting Hitec servos, Jr 10 ch Syn RX. Got Axel pilot 1.2.5 scale, and instruments for the cockpit. http://www.axels-scale-pilots.de/ Photos of a full size ASW 28 and 29 that I took at a recent event at Warner Springs CA. A 7 ch Competition Power Box system that comes with two 3300 nm batteries and a digital switch from Aircraft Int. http://www.aircraftinternational.com/powerbox_index.htm Landing gear install up next. Attached Thumbnails 79.2 KB · Views: 571 49.9 KB · Views: 550 64.5 KB · Views: 501 76.8 KB · Views: 324 50.7 KB · Views: 541 Last edited by scalebldr; Dec 19, 2006 at 12:52 PM.

Oct 17, 2006, 11:30 PM	#12
scalebldr scalebldr Join Date: Nov 2005 Location: Long Beach, Ca Posts: 160	Landing Gear Install 10/17/06 Before I sound to nuts, just understand all the stuff I show you on this building loge is meant to express ideas and not to make the building of your 28 an exact science, this is meant to aid and exchange ideas with all. I will assume that all of us by now know now how to build at this level. I will try to show all the details in photos. When in doubt, ask a question, your humble servant. The Kit comes with a retract installed. You have to mount the servo. In this case I used a Hitec 5945 digital servo. I also fabricated a brake system using a second 5945 digital. I used some left over servo mounts from Hock, you could use any aluminum right angel extrusion that’s light weight from the hardware store, the same as in John's photo. The linkage is a carbon aero shaft with 4 /40 all thread inside with 4/40 ball links at each end. The brake system is made with a brake kit from Fema Modelltechnik that fits a 127 MM wheel. The rest is made from 1/8" aluminum plate and 1/2" round rod. After mounting the servo and linkage I used braded fishing wire to connect the bell crank to the brake arm. This is done so the retract can rotate up and down and still have a positive connection to the brake. http://www.fema-modelltechnik.de/ One thing I would recommend, the aluminum collet on the main shaft that has a recessed 4mm alien screw that needs to be replaced with a 4mm external socket screw. Also make a flat spot on the shaft so the screw will seat and prevent it from rotating, this is done after you find the proper movement of the retract. BFN Rick Attached Thumbnails 45.2 KB · Views: 445 47.7 KB · Views: 553 46.6 KB · Views: 460 47.2 KB · Views: 443 47.6 KB · Views: 437 39.7 KB · Views: 417

Oct 24, 2006, 02:43 AM	#13
Big Nuts 181 Registered User Join Date: Jul 2004 Posts: 981	hi there scale builder I have a question, how are the hinges done on the gear doors of your 28??

Oct 25, 2006, 03:29 PM	#14
scalebldr scalebldr Join Date: Nov 2005 Location: Long Beach, Ca Posts: 160	Here is a drawing of a way to install gear doors on a 1/4 scale ship and its the same way its done on the 28 with a minor change. You use tubing and piano wire to make the hinge. Also you can use one length instead of two seperate pieces, its easyer to keep the alignment for the center line of the hinge. Rick Attached Thumbnails 95.5 KB · Views: 513

Oct 26, 2006, 04:46 AM	#15
Big Nuts 181 Registered User Join Date: Jul 2004 Posts: 981	how easy is that! hey thanks for the reply, hows the model coming along is she in the air yet?

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