New Speed 400 racer, Whisper.

rogwinger · May 05, 2003, 10:01 PM

After talking about racing some speed 400 in the Vancouver area, I decided to have a go at designing my own. Here's what I came up with. I call it the Whisper just because it's so quiet in the air. Construction is all wood and great fun to fly. You can check out the details at my website. Anyone wanna race

davidfee · May 05, 2003, 10:15 PM

That's a beautiful piece of work! I bet she flies really well, too!

GAANDAHL · May 05, 2003, 10:45 PM

Hats off to a real craftsman!
George

rogwinger · May 06, 2003, 12:11 AM

Thanks for the comments guys! It's always great fun sharing my work with everyone.

mattg · May 06, 2003, 12:37 AM

That looks Hot, nice planform and good proportions. Is there room inside for 9-10 2/3A cells despite the higher wingloading?

rogwinger · May 06, 2003, 12:53 AM

If by 2/3a cells you mean 600 ae's or he1100's yes it would be easy to get 10 in there. I have 8 in the fuse now and you can see the room left over. Heck you could probabably get 12 in there if you tried. The speed 400 wouldn't last long though.

DaveSawers · May 06, 2003, 09:10 AM

Couldn't find many details on your site Roger. What's the wing span, area, weight, etc.

rogwinger · May 06, 2003, 09:04 PM

Hi Dave

The Whisper weighed 4 ounces framed without paint or components. When it was all done with 8 600 ae's and a 10 amp speed control the model weighed 16.2 ounces. I did get a little carried away with the paint and finishing however. Now the Whisper has a 30 amp Great planes speed control and 8 KAN 1100's. I had to change the speed control because the wires were melting. It gained 2 ounces! Yikes! I do like the longer flight times though. I'm going to get a 15 amp speed control soon for it and that should save some weight. Wingarea is 150 squares on the nose so in case I get back to Calgary this summer I can come racing with you guys. I used to fly at the Airdrie club. Wingspan is 33 inch's

rogwinger · May 06, 2003, 11:13 PM

I seem to be having troubles uploading the new files to my website. There should be a new heading on the left called "Whisper". When you click on it the page should open to a single picture of the Whisper and a description below that. It looks like it is working now for me. Could someone check it out and let me know. Thanks

davidfee · May 06, 2003, 11:20 PM

Quote:

Could someone check it out and let me know.

It's working for me also.

What are the KAN 1100's you mention? I'm using KAN 950's... are your cells something different?

-David

rogwinger · May 06, 2003, 11:34 PM

The local hobby shop just got them in. I was the first person to buy them from him so they must be a pretty new product. They are the same size as the 950's just more capacity. He said they were good for 25 amp discharge rates.

davidfee · May 07, 2003, 12:18 AM

Hmm... I've seen some "new and improved" KAN 950's that Steve Neu has been testing... but I haven't heard of any 1100's. Interesting.

rogwinger · May 19, 2003, 11:12 PM

I had a great weekend with the Whisper. My new Hyper 400 showed up from Aircraft World in the unbelievably quick time of 5 days. Simply amazing, thank you David! This motor brought the speed up and was an improvement. However the real fun began today when the Hyper 400 was taken out and a Speed 480 was installed. Now this model really goes! Holy smokes, what a difference!

After Draken's wing failure on Saturday I was a little nervous about the strength in my wing. I did several dives from altitude with no problems, not even a hint of flutter. The allup weight is now 18.6 ounces but it handles just fine. Hope the weather is good tomorrow, I can get some more flights in before work.

kushal_22 · May 20, 2003, 12:10 AM

What About using a Castle creations Pixie 20AMP ESC? . You should lose some weight there. It will be nice to see the Whisper in Chilliwack this weekend....you ARE going to be there right?

Mal

rogwinger · May 20, 2003, 01:07 AM

Hey Kush!

Yes, I could use some smaller equipment like a Pixie 20 and the Hitec 555 could be replaced also. As for the event in Chilliwack, yes I'll be there with the Whisper and the Aggressor and perhaps a GWS Zero. Just checked the weather forecast and Sunday is looking like the better day. 80% chance of light rain on Saturday. Hopefully it comes around for us. See you there.

May 05, 2003, 10:01 PM	#1
rogwinger How fast can balsa go? Join Date: Jan 2002 Location: Chilliwack B.C. Posts: 674	New Speed 400 racer, Whisper. After talking about racing some speed 400 in the Vancouver area, I decided to have a go at designing my own. Here's what I came up with. I call it the Whisper just because it's so quiet in the air. Construction is all wood and great fun to fly. You can check out the details at my website. Anyone wanna race Attached Thumbnails 59.2 KB · Views: 4605 Last edited by rogwinger; May 05, 2003 at 10:25 PM.

May 06, 2003, 12:11 AM	#4
rogwinger How fast can balsa go? Join Date: Jan 2002 Location: Chilliwack B.C. Posts: 674	Thanks for the comments guys! It's always great fun sharing my work with everyone. Last edited by rogwinger; May 06, 2003 at 12:55 AM.

May 06, 2003, 12:53 AM	#6
rogwinger How fast can balsa go? Join Date: Jan 2002 Location: Chilliwack B.C. Posts: 674	If by 2/3a cells you mean 600 ae's or he1100's yes it would be easy to get 10 in there. I have 8 in the fuse now and you can see the room left over. Heck you could probabably get 12 in there if you tried. The speed 400 wouldn't last long though. Attached Thumbnails 44.1 KB · Views: 4342

May 06, 2003, 09:04 PM	#8
rogwinger How fast can balsa go? Join Date: Jan 2002 Location: Chilliwack B.C. Posts: 674	Hi Dave The Whisper weighed 4 ounces framed without paint or components. When it was all done with 8 600 ae's and a 10 amp speed control the model weighed 16.2 ounces. I did get a little carried away with the paint and finishing however. Now the Whisper has a 30 amp Great planes speed control and 8 KAN 1100's. I had to change the speed control because the wires were melting. It gained 2 ounces! Yikes! I do like the longer flight times though. I'm going to get a 15 amp speed control soon for it and that should save some weight. Wingarea is 150 squares on the nose so in case I get back to Calgary this summer I can come racing with you guys. I used to fly at the Airdrie club. Wingspan is 33 inch's Last edited by rogwinger; May 06, 2003 at 09:06 PM.

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May 05, 2003, 10:15 PM	#2
davidfee Registered User Join Date: Mar 2001 Location: San Diego, CA, USA Posts: 3,066	That's a beautiful piece of work! I bet she flies really well, too!

May 05, 2003, 10:45 PM	#3
GAANDAHL Registered User Join Date: Aug 2000 Location: Red Wing, MN Posts: 285	Hats off to a real craftsman! George

May 06, 2003, 12:37 AM	#5
mattg Registered User Join Date: Feb 2003 Location: Sydney, Australia Posts: 486	That looks Hot, nice planform and good proportions. Is there room inside for 9-10 2/3A cells despite the higher wingloading?

May 06, 2003, 09:10 AM	#7
DaveSawers Registered User Join Date: Oct 1999 Location: Bragg Creek, AB, Canada Posts: 3,547	Couldn't find many details on your site Roger. What's the wing span, area, weight, etc.

May 06, 2003, 11:13 PM	#9
rogwinger How fast can balsa go? Join Date: Jan 2002 Location: Chilliwack B.C. Posts: 674	I seem to be having troubles uploading the new files to my website. There should be a new heading on the left called "Whisper". When you click on it the page should open to a single picture of the Whisper and a description below that. It looks like it is working now for me. Could someone check it out and let me know. Thanks

May 06, 2003, 11:34 PM	#11
rogwinger How fast can balsa go? Join Date: Jan 2002 Location: Chilliwack B.C. Posts: 674	The local hobby shop just got them in. I was the first person to buy them from him so they must be a pretty new product. They are the same size as the 950's just more capacity. He said they were good for 25 amp discharge rates.

May 07, 2003, 12:18 AM	#12
davidfee Registered User Join Date: Mar 2001 Location: San Diego, CA, USA Posts: 3,066	Hmm... I've seen some "new and improved" KAN 950's that Steve Neu has been testing... but I haven't heard of any 1100's. Interesting.

May 19, 2003, 11:12 PM	#13
rogwinger How fast can balsa go? Join Date: Jan 2002 Location: Chilliwack B.C. Posts: 674	I had a great weekend with the Whisper. My new Hyper 400 showed up from Aircraft World in the unbelievably quick time of 5 days. Simply amazing, thank you David! This motor brought the speed up and was an improvement. However the real fun began today when the Hyper 400 was taken out and a Speed 480 was installed. Now this model really goes! Holy smokes, what a difference! After Draken's wing failure on Saturday I was a little nervous about the strength in my wing. I did several dives from altitude with no problems, not even a hint of flutter. The allup weight is now 18.6 ounces but it handles just fine. Hope the weather is good tomorrow, I can get some more flights in before work.

May 20, 2003, 12:10 AM	#14
kushal_22 Registered User Join Date: Dec 2001 Location: Kamloops Posts: 6,263	What About using a Castle creations Pixie 20AMP ESC? . You should lose some weight there. It will be nice to see the Whisper in Chilliwack this weekend....you ARE going to be there right? Mal

May 20, 2003, 01:07 AM	#15
rogwinger How fast can balsa go? Join Date: Jan 2002 Location: Chilliwack B.C. Posts: 674	Hey Kush! Yes, I could use some smaller equipment like a Pixie 20 and the Hitec 555 could be replaced also. As for the event in Chilliwack, yes I'll be there with the Whisper and the Aggressor and perhaps a GWS Zero. Just checked the weather forecast and Sunday is looking like the better day. 80% chance of light rain on Saturday. Hopefully it comes around for us. See you there.