Moth Tuning

General chat about boats
Rupert
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Joined: Thu Sep 16, 2004 8:40 pm
Location: Cotswold Water Park

Re: Moth Tuning

Post by Rupert »

Pat will have a fair few in the system, and we can figure the others out from the old books.
Rupert
Nessa
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Joined: Sat Sep 27, 2008 3:16 pm
Location: East Angular

Re: Moth Tuning

Post by Nessa »

thanks Rupert. There will also be two 'classic' phantoms, planning to look them up in Blandford and Burrett etc.
The Peril
Agamemnon
Lovely little Cadet
OK 1954
Xena Warrior Princess
Finn 469
Laser 2
Wayfarer World
Pat
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Joined: Mon Sep 27, 2004 1:42 pm
Location: West Wiltshire (Wessex)

Re: Moth Tuning

Post by Pat »

Nessa no panic - I've a set of figures ready. The handicap committee can have a final say anyway.
Phantom isn't in my Burrett but I'd guess we could rate it similar to an unmodernised Merlin of that era. Can't tell until we see it on the water.
(Half Cut and What a Lark Removals Ltd)
Nessa
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Joined: Sat Sep 27, 2008 3:16 pm
Location: East Angular

Re: Moth Tuning

Post by Nessa »

in one of mine - can't remember which - it gives 92. Both boats are old and patched, but they are very pleased to be able to take part.,
The Peril
Agamemnon
Lovely little Cadet
OK 1954
Xena Warrior Princess
Finn 469
Laser 2
Wayfarer World
Pat
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Joined: Mon Sep 27, 2004 1:42 pm
Location: West Wiltshire (Wessex)

Re: Moth Tuning

Post by Pat »

That's about what I was thinking - Merlins go at 91 for classic.
(Half Cut and What a Lark Removals Ltd)
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PeterV
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Joined: Thu Sep 16, 2004 8:47 pm
Location: Locks Heath, Hampshire

Re: Moth Tuning

Post by PeterV »

My 1974 Boat World gives 92. In theory it should be faster than a Finn (same sail area and length, more beam, half the weight) but on the water I'd expect to give them a close race.
PeterV
Finn K197 & GBR564
Warsash
Nessa
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Location: East Angular

Re: Moth Tuning

Post by Nessa »

Yes, I got the number from Boat World. really useful little book.
The Peril
Agamemnon
Lovely little Cadet
OK 1954
Xena Warrior Princess
Finn 469
Laser 2
Wayfarer World
JimC
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Joined: Sun Oct 03, 2004 10:24 pm
Location: Surrey
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Re: Moth Tuning

Post by JimC »

Here are some modern equivalents of Moth and Phantom PYs I have recorded.

Int Moth Phantom
1973 1147 1052
1974 1136 1052
1975 1136 1052
1976 1136 1052

1980 1136 1052

1985 1107 1052
1986 1107
1987 1107 1061
1988 1069
1989 1069 1061
1995 1022 1052

1997 1022 1052
1998 1001 1051
1999 1001 1051
2000 1001 1051
simonmw
Posts: 49
Joined: Tue Sep 25, 2012 8:17 pm

Re: Moth Tuning

Post by simonmw »

I've just become the new owner of Int Moth 3936, which started this forum thread- having seen the daggerboard, I'm not at all surprised Alex couldn't get the boat to point!

Taking the boat out for a sail later today.

Simon.
Current custodian of-
Micro 18
Tiger Moth
'Gentleman Jim' Moth GBR3936
'Dragon' Moth GBR3848
Merlin Rocket 3521
Buell XB12R Firebolt
Landrover 110 Defender
And a big shed to keep them in...
Nessa
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Location: East Angular

Re: Moth Tuning

Post by Nessa »

it's a real shame you couldn't make it to Hunts this weeeknd Simon - many of the boats mentioned in this thread are there. Mind you, there is still time....
The Peril
Agamemnon
Lovely little Cadet
OK 1954
Xena Warrior Princess
Finn 469
Laser 2
Wayfarer World
simonmw
Posts: 49
Joined: Tue Sep 25, 2012 8:17 pm

Re: Moth Tuning

Post by simonmw »

Sadly this weekend I am mostly whoring myself out to the obscure branch of the Civil Service concerned with search and rescue co-ordination. I have to pay for all the toys somehow...

Seriously though, a lowrider Moth meet sounds like an excellent idea, I did see a forum post a little while ago talking about organising something, has one yet happened?
Current custodian of-
Micro 18
Tiger Moth
'Gentleman Jim' Moth GBR3936
'Dragon' Moth GBR3848
Merlin Rocket 3521
Buell XB12R Firebolt
Landrover 110 Defender
And a big shed to keep them in...
simonmw
Posts: 49
Joined: Tue Sep 25, 2012 8:17 pm

Re: Moth Tuning

Post by simonmw »

On the original topic- why doesn't the boat go upwind?

1. The daggerboard is (or was before it became a two piece) a very roughly hand shaped piece of 1" plywood, not the same cross section both sides, and with a sort of undulating finish. It weighs about as much as the rest of the boat put together, yet is slightly shallower than the rudder when fully down!

2. By far the most significant issue is that the mainsheet bridle is too long, meaning that the system goes 'block to block' well before the sail is sheeted in as far as it needs to be.

3. Somebody said something about downhaul tension, correct! although this would be far less of an issue if it wasn't for the other two problems.
Current custodian of-
Micro 18
Tiger Moth
'Gentleman Jim' Moth GBR3936
'Dragon' Moth GBR3848
Merlin Rocket 3521
Buell XB12R Firebolt
Landrover 110 Defender
And a big shed to keep them in...
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