Search found 53 matches

by Don Case
17 Oct 2008, 16:45
Forum: General IOM
Topic: Web sites
Replies: 4
Views: 7520

Web sites

I have run out of IOM stuff to read. I have been through Ander's and Lester's sites many times. Is there any more web sites of that quality and content hiding out there?
Thanks
Don
by Don Case
17 Oct 2008, 03:20
Forum: Class Rules
Topic: 60mm
Replies: 6
Views: 9035

Thanks Barry Why I am wondering is because the average guy is supposed to be able to design and build an IOM at his kitchen table(or so the story goes). It is tough enough to get the displacement right without the constraint of the 60mm depth. Because of this I thought there must be some advantage t...
by Don Case
16 Oct 2008, 02:32
Forum: Class Rules
Topic: 60mm
Replies: 6
Views: 9035

60mm

Can someone explain the necessity of the 60mm draft rule? What advantage is there in having a boat with a deeper hull draft? The keel depth is limited by the 420 rule.
Thanks
Don
by Don Case
11 Oct 2008, 15:54
Forum: General IOM
Topic: Rudders
Replies: 11
Views: 11647

Bruce Andersen wrote:I've used the JR mini servos in a heavy boat to make minimum weight, but in a boat that needs corrector weights anyhow, what's the point?
Room, I'm using a 4.5in jar lid for a hatch and I want to get at everything through it. If I could find a 5in lid it would be golden.
Thanks
Don
by Don Case
10 Oct 2008, 17:04
Forum: General IOM
Topic: Rudders
Replies: 11
Views: 11647

Thanks for the thoughts I have a phobia about deck patches. On one of my first trips to watch some model boats I watched a brand new IOM disappear in about a second when a deck patch peeled off. I can still hear the skipper swearing. I have not trusted them since. Maybe a second, smaller lid for eit...
by Don Case
09 Oct 2008, 20:37
Forum: General IOM
Topic: Rudders
Replies: 11
Views: 11647

Would a Hitec HS85mg mini servo be suitable for a rudder servo? It has metal gears and roughly the same torque as a standard servo. I would have to check the return to center. I am trying to crowd everything into a 4.5 in jar lid and any room would be welcome. I have heard that metal gears have some...
by Don Case
08 Oct 2008, 20:46
Forum: General IOM
Topic: Servo Voltage
Replies: 10
Views: 10441

You know, I thought of this before, but I was thinking that if I had a 5 cell holder I could use it for alkalines by putting in a dummy. It never crossed my mind to use a 6 cell with a dummy for 5. I guess thats why you're a professor and I'm just an old telephone guy. Come to think of it there is p...
by Don Case
08 Oct 2008, 17:47
Forum: General IOM
Topic: Servo Voltage
Replies: 10
Views: 10441

John I haven't read good things about rechargable alkalines so I'll shy away from them for a while. Barry 37 years with the telephone company,I hope I can solder. :wink: My reason for using individual cells is that I have seen too many battery packs thrown away because of one duff cell(remember, I'm...
by Don Case
07 Oct 2008, 00:39
Forum: General IOM
Topic: Servo Voltage
Replies: 10
Views: 10441

Good point. I was just surfing, looking for a 5 cell AA battery holder and there ain't no such thing. I was thinking that maybe I could use a 6 cell holder. Never thought about the receiver. :oops: :oops: :oops: I might have eventually. Like when I saw the factory smoke rising from the boat. Thanks ...
by Don Case
06 Oct 2008, 20:47
Forum: General IOM
Topic: Servo Voltage
Replies: 10
Views: 10441

Servo Voltage

Has anyone ever tried 7.2v on an HS-805 or 815? How long did it last?
Thanks
Don
by Don Case
04 Oct 2008, 18:03
Forum: General IOM
Topic: IOM Plans
Replies: 4
Views: 9095

Hi Don, There are others out there. Those that spring to mind immediately: Vanquish http://www.dans-hobbies.com/2007/11/15/vanquish-iom-plans/ Laerke http://www.anderswallin.net/2004/11/laerke-iom-by-s%C3%B8ren-andresen/ Noux http://www.anderswallin.net/2005/10/noux-lines-plan/ Sliver http://www.an...
by Don Case
04 Oct 2008, 17:58
Forum: General IOM
Topic: Rudders
Replies: 11
Views: 11647

most all of the available servos produce enough torque - the important points are how well they return to dead center and weight (if your boat's heavy). The digital servos are more expensive but claim more accurate return to dead center. It never occurred to me that this might be an issue. I guess ...
by Don Case
03 Oct 2008, 19:35
Forum: General IOM
Topic: Rudders
Replies: 11
Views: 11647

Rudders

I have been surfing old posts and notice a few that seem to indicate that maybe rudders and rudder servos should stronger than I thought. Are CF rudders and high torgue servos really necessary or is it just a bigger is better thing? What kind of torque would be about right?
Thanks
Don
by Don Case
03 Oct 2008, 19:22
Forum: General IOM
Topic: IOM Plans
Replies: 4
Views: 9095

IOM Plans

I have been searching the forum for IOM plans and most that I found have dead links. Are there any free downloadable plans out there? I have the Arrow and Triple Crown. I would purchase plans( I'm not totally cheap) but most of the commercial sights don't show the lines so you really don't know what...
by Don Case
02 Oct 2008, 17:29
Forum: Class Rules
Topic: Voltage indicator / battery indicator legal?
Replies: 39
Views: 35084

Can someone point me at the rule that says we can't use anything that gives us an advantage?
Don
by Don Case
01 Oct 2008, 04:47
Forum: General IOM
Topic: Water Free Measurement
Replies: 4
Views: 6127

Unfortunately I am not a member of the CRYA yet but I will ask around. Maybe someone that is coming to Robinson Lake this weekend has a copy.
Thanks Barry
Don
by Don Case
30 Sep 2008, 20:52
Forum: General IOM
Topic: Water Free Measurement
Replies: 4
Views: 6127

Oh well
Thanks Barry
Don
by Don Case
30 Sep 2008, 20:23
Forum: General IOM
Topic: Water Free Measurement
Replies: 4
Views: 6127

Water Free Measurement

I found this while looking around here.
http://www.iomclass.org/measurement/Wat ... eIOMv3.pdf

Has this been accepted? Can I build and use these gauges and expect to pass measurement?
Thanks
Don
by Don Case
26 Sep 2008, 19:57
Forum: General IOM
Topic: Mast sources
Replies: 1
Views: 4187

Mast sources

Hi all
I'm looking for some masts. Does anyone know of a source in Arizona? My bro-in-law spends the winter at Havasu and I thought he could pick up some and save us the shipping/customs hassle.
Thanks
Don
by Don Case
25 Sep 2008, 22:19
Forum: General IOM
Topic: New Member
Replies: 6
Views: 7557

Thanks John
by Don Case
25 Sep 2008, 21:19
Forum: General IOM
Topic: New Member
Replies: 6
Views: 7557

Hi Barry
While you're here who is our measuerer
Thanks
Don
by Don Case
25 Sep 2008, 19:32
Forum: General IOM
Topic: New Member
Replies: 6
Views: 7557

Hi Don That’s an interesting observation. Could you expand a little? What did you struggle to find? Cheers I was trying to see how long the mast was(I was thinking about using a US1M CF mast until I could get an aluminum one) and I had to go to C.7.4(a) to get the deck to lower point and then to ...
by Don Case
25 Sep 2008, 18:00
Forum: General IOM
Topic: New Member
Replies: 6
Views: 7557

New Member

Hi everyone My name is Don Case and I sail model yachts. :wink: Up til now I sailed a US1M Mistral but the trend on the Island is towards IOM so here I go. Since I had a bare Mistral hull kicking around I thought I would take a shot at converting it. I widened the transom and pushed the beam out to ...