Re: [bolger] Re: Diablo Motor Support
You should wish for a 25hp 2 stroke as my Diablo (Sabre) will do 25 kts GPS tested with 2 people on board on an open flat sea, and is a great deal of fun at this speed. There is a small crack in the horizontal strength member that has been there for almost three years the age of the boat. The timber used was celery top pine and built to spec but it may have been a bit green. The transom knee was beefed up to twice spec thickness so I have no concerns about transom failure as the boat has had some toture in the past with no ill effects. It is currently having a sanding ready for some new paint. I believe that my brother has posted some photos in on of the bolger groups.
dnjost <davidjost@...> wrote: Jon -
We tried this same experiment with my Diablo. I can get my Diablo to
plane with it's 9.9 hp Johnson, two cycle. We tried a 4 cycle 10 HP
Honda and the boat would not get up on plane. The difference in
weight is considerable, and I think the prop and thrust are way
different. The Honda is still much quieter.
I think you are right in beefing up the support and moving to a 15
hp. I wish I had a 15 hp, it would fly. I will be installing a dry
well to cut down on the possibility of taking too much water over the
transom by accident (suggested by Harbormaster).
I currently can do 15 mph. Timed run.
Happy Building
David JOst
---------------------------------
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[Non-text portions of this message have been removed]
dnjost <davidjost@...> wrote: Jon -
We tried this same experiment with my Diablo. I can get my Diablo to
plane with it's 9.9 hp Johnson, two cycle. We tried a 4 cycle 10 HP
Honda and the boat would not get up on plane. The difference in
weight is considerable, and I think the prop and thrust are way
different. The Honda is still much quieter.
I think you are right in beefing up the support and moving to a 15
hp. I wish I had a 15 hp, it would fly. I will be installing a dry
well to cut down on the possibility of taking too much water over the
transom by accident (suggested by Harbormaster).
I currently can do 15 mph. Timed run.
Happy Building
David JOst
---------------------------------
Do you Yahoo!?
Get on board. You're invited to try the new Yahoo! Mail Beta.
[Non-text portions of this message have been removed]
Jon -
We tried this same experiment with my Diablo. I can get my Diablo to
plane with it's 9.9 hp Johnson, two cycle. We tried a 4 cycle 10 HP
Honda and the boat would not get up on plane. The difference in
weight is considerable, and I think the prop and thrust are way
different. The Honda is still much quieter.
I think you are right in beefing up the support and moving to a 15
hp. I wish I had a 15 hp, it would fly. I will be installing a dry
well to cut down on the possibility of taking too much water over the
transom by accident (suggested by Harbormaster).
I currently can do 15 mph. Timed run.
Happy Building
David JOst
We tried this same experiment with my Diablo. I can get my Diablo to
plane with it's 9.9 hp Johnson, two cycle. We tried a 4 cycle 10 HP
Honda and the boat would not get up on plane. The difference in
weight is considerable, and I think the prop and thrust are way
different. The Honda is still much quieter.
I think you are right in beefing up the support and moving to a 15
hp. I wish I had a 15 hp, it would fly. I will be installing a dry
well to cut down on the possibility of taking too much water over the
transom by accident (suggested by Harbormaster).
I currently can do 15 mph. Timed run.
Happy Building
David JOst
I used to have a 12' runabout with a 15 hp motor (Montgomery Ward
branded OMC). If I set the trim setting bar too close to the transom,
it held the bow down and prevented planing.
V/R
Chris
stuart crawford wrote:
branded OMC). If I set the trim setting bar too close to the transom,
it held the bow down and prevented planing.
V/R
Chris
stuart crawford wrote:
> My father settled on a 15 hp outboard for his Diablo, though I'm surprised
> that you can't get yours to plan, as my fathers one did when he started out
> with a 10 hp Honda. That was with no weight in the vow though.
>
> Stuart.
>
>
>> From: adventures_in_astrophotography <jon@...>
>> Reply-To:bolger@yahoogroups.com
>> Date: Tue, 15 Aug 2006 13:40:52 +0000
>> To:bolger@yahoogroups.com
>> Subject: [bolger] Diablo Motor Support
>>
>> My Diablo rendition was launched in June, but I don't have any photos
>> of her posted on my website yet. Everything seems to work well, but
>> she definitely could use more power, as the 9.9 Honda is not enough
>> to get her up on a plane. Since she never gets up, the trim is bow-
>> high, although notching the motor forward one slot improved things.
>> Top speed wide open is about 10 mph according to GPS, plenty to get
>> across the lake and fish the weed beds for pike.
>>
>> That's the good news. The bad news is that the factory-built
>> trailer, with it's fairly stiff springs (1200 lb trailer capacity)
>> and two miles of dirt road I have to traverse every time I use the
>> boat are beating it up. I've got strapping her down sorted out, but
>> the motor jerks around while on the washboards and it's having a bad
>> effect on the transom, even though the motor can be trailered in
>> the "run" position. Before it gets any worse I'd like to do
>> something about it.
>>
>> The question then, is whether anyone in the group can share their
>> experience with motor lower unit support brackets. Do these work?
>> Is there a brand to look for (or stay away from)? Does anyone think
>> taking a leaf out of the trailer springs will help soften the ride?
>> How about bolting some weight onto the trailer frame? Any other
>> suggestions would be greatly appreciated.
>>
>> Jon Kolb
>> www.kolbsadventures.com/boatbuilding_index.htm
>>
>>
>>
>>
>>
>> Bolger rules!!!
>> - NO "GO AWAY SPAMMER!" posts!!! Please!
>> - no cursing, flaming, trolling, spamming, respamming, or flogging dead horses
>> - stay on topic, stay on thread, punctuate, no 'Ed, thanks, Fred' posts
>> - Pls add your comments at the TOP, SIGN your posts, and snip away
>> - Plans: Mr. Philip C. Bolger, P.O. Box 1209, Gloucester, MA, 01930, Fax:
>> (978) 282-1349
>> - Unsubscribe:bolger-unsubscribe@yahoogroups.com
>> - Open discussion:bolger_coffee_lounge-subscribe@yahoogroups.com
>> Yahoo! Groups Links
>>
>>
>>
>>
>>
>>
>>
>>
>
>
>
> Bolger rules!!!
> - NO "GO AWAY SPAMMER!" posts!!! Please!
> - no cursing, flaming, trolling, spamming, respamming, or flogging dead horses
> - stay on topic, stay on thread, punctuate, no 'Ed, thanks, Fred' posts
> - Pls add your comments at the TOP, SIGN your posts, and snip away
> - Plans: Mr. Philip C. Bolger, P.O. Box 1209, Gloucester, MA, 01930, Fax: (978) 282-1349
> - Unsubscribe:bolger-unsubscribe@yahoogroups.com
> - Open discussion:bolger_coffee_lounge-subscribe@yahoogroups.com
> Yahoo! Groups Links
>
>
>
>
>
>
>
>
>
I also tried my Diablo with an old 10 Hp Honda, and it seems to me it was
not sufficient to plan, but looking at the photos, I few fellow bolgerist
tell me the oposite. My Diablo is a little heavier than it should be,
because I build the bottom and the frames with 18mm plywood instead of 9 or
10 mm. With one person on board I can achieve 10 knots on calm waters.
http://www.promax.com.ar/diablo/diablo08.htm
Máximo.
not sufficient to plan, but looking at the photos, I few fellow bolgerist
tell me the oposite. My Diablo is a little heavier than it should be,
because I build the bottom and the frames with 18mm plywood instead of 9 or
10 mm. With one person on board I can achieve 10 knots on calm waters.
http://www.promax.com.ar/diablo/diablo08.htm
Máximo.
My father settled on a 15 hp outboard for his Diablo, though I'm surprised
that you can't get yours to plan, as my fathers one did when he started out
with a 10 hp Honda. That was with no weight in the vow though.
Stuart.
that you can't get yours to plan, as my fathers one did when he started out
with a 10 hp Honda. That was with no weight in the vow though.
Stuart.
> From: adventures_in_astrophotography <jon@...>
> Reply-To:bolger@yahoogroups.com
> Date: Tue, 15 Aug 2006 13:40:52 +0000
> To:bolger@yahoogroups.com
> Subject: [bolger] Diablo Motor Support
>
> My Diablo rendition was launched in June, but I don't have any photos
> of her posted on my website yet. Everything seems to work well, but
> she definitely could use more power, as the 9.9 Honda is not enough
> to get her up on a plane. Since she never gets up, the trim is bow-
> high, although notching the motor forward one slot improved things.
> Top speed wide open is about 10 mph according to GPS, plenty to get
> across the lake and fish the weed beds for pike.
>
> That's the good news. The bad news is that the factory-built
> trailer, with it's fairly stiff springs (1200 lb trailer capacity)
> and two miles of dirt road I have to traverse every time I use the
> boat are beating it up. I've got strapping her down sorted out, but
> the motor jerks around while on the washboards and it's having a bad
> effect on the transom, even though the motor can be trailered in
> the "run" position. Before it gets any worse I'd like to do
> something about it.
>
> The question then, is whether anyone in the group can share their
> experience with motor lower unit support brackets. Do these work?
> Is there a brand to look for (or stay away from)? Does anyone think
> taking a leaf out of the trailer springs will help soften the ride?
> How about bolting some weight onto the trailer frame? Any other
> suggestions would be greatly appreciated.
>
> Jon Kolb
> www.kolbsadventures.com/boatbuilding_index.htm
>
>
>
>
>
> Bolger rules!!!
> - NO "GO AWAY SPAMMER!" posts!!! Please!
> - no cursing, flaming, trolling, spamming, respamming, or flogging dead horses
> - stay on topic, stay on thread, punctuate, no 'Ed, thanks, Fred' posts
> - Pls add your comments at the TOP, SIGN your posts, and snip away
> - Plans: Mr. Philip C. Bolger, P.O. Box 1209, Gloucester, MA, 01930, Fax:
> (978) 282-1349
> - Unsubscribe:bolger-unsubscribe@yahoogroups.com
> - Open discussion:bolger_coffee_lounge-subscribe@yahoogroups.com
> Yahoo! Groups Links
>
>
>
>
>
>
>
Taking a leaf out of the trailer springs would be where I would start. If you need something in between, they make inflatable helper gadgets that would cushion the bottoming and also be adjustable. Shock absorbers don't seem popular, but they'd make a huge difference after you softened the springs.
Roger
derbyrm@...
http://home.insightbb.com/~derbyrm
Roger
derbyrm@...
http://home.insightbb.com/~derbyrm
----- Original Message -----
From: adventures_in_astrophotography
To:bolger@yahoogroups.com
Sent: Tuesday, August 15, 2006 9:40 AM
Subject: [bolger] Diablo Motor Support
My Diablo rendition was launched in June, but I don't have any photos
of her posted on my website yet. Everything seems to work well, but
she definitely could use more power, as the 9.9 Honda is not enough
to get her up on a plane. Since she never gets up, the trim is bow-
high, although notching the motor forward one slot improved things.
Top speed wide open is about 10 mph according to GPS, plenty to get
across the lake and fish the weed beds for pike.
That's the good news. The bad news is that the factory-built
trailer, with it's fairly stiff springs (1200 lb trailer capacity)
and two miles of dirt road I have to traverse every time I use the
boat are beating it up. I've got strapping her down sorted out, but
the motor jerks around while on the washboards and it's having a bad
effect on the transom, even though the motor can be trailered in
the "run" position. Before it gets any worse I'd like to do
something about it.
The question then, is whether anyone in the group can share their
experience with motor lower unit support brackets. Do these work?
Is there a brand to look for (or stay away from)? Does anyone think
taking a leaf out of the trailer springs will help soften the ride?
How about bolting some weight onto the trailer frame? Any other
suggestions would be greatly appreciated.
Jon Kolb
www.kolbsadventures.com/boatbuilding_index.htm
[Non-text portions of this message have been removed]
My Diablo rendition was launched in June, but I don't have any photos
of her posted on my website yet. Everything seems to work well, but
she definitely could use more power, as the 9.9 Honda is not enough
to get her up on a plane. Since she never gets up, the trim is bow-
high, although notching the motor forward one slot improved things.
Top speed wide open is about 10 mph according to GPS, plenty to get
across the lake and fish the weed beds for pike.
That's the good news. The bad news is that the factory-built
trailer, with it's fairly stiff springs (1200 lb trailer capacity)
and two miles of dirt road I have to traverse every time I use the
boat are beating it up. I've got strapping her down sorted out, but
the motor jerks around while on the washboards and it's having a bad
effect on the transom, even though the motor can be trailered in
the "run" position. Before it gets any worse I'd like to do
something about it.
The question then, is whether anyone in the group can share their
experience with motor lower unit support brackets. Do these work?
Is there a brand to look for (or stay away from)? Does anyone think
taking a leaf out of the trailer springs will help soften the ride?
How about bolting some weight onto the trailer frame? Any other
suggestions would be greatly appreciated.
Jon Kolb
www.kolbsadventures.com/boatbuilding_index.htm
of her posted on my website yet. Everything seems to work well, but
she definitely could use more power, as the 9.9 Honda is not enough
to get her up on a plane. Since she never gets up, the trim is bow-
high, although notching the motor forward one slot improved things.
Top speed wide open is about 10 mph according to GPS, plenty to get
across the lake and fish the weed beds for pike.
That's the good news. The bad news is that the factory-built
trailer, with it's fairly stiff springs (1200 lb trailer capacity)
and two miles of dirt road I have to traverse every time I use the
boat are beating it up. I've got strapping her down sorted out, but
the motor jerks around while on the washboards and it's having a bad
effect on the transom, even though the motor can be trailered in
the "run" position. Before it gets any worse I'd like to do
something about it.
The question then, is whether anyone in the group can share their
experience with motor lower unit support brackets. Do these work?
Is there a brand to look for (or stay away from)? Does anyone think
taking a leaf out of the trailer springs will help soften the ride?
How about bolting some weight onto the trailer frame? Any other
suggestions would be greatly appreciated.
Jon Kolb
www.kolbsadventures.com/boatbuilding_index.htm