Primitive Archer

Main Discussion Area => Bows => Topic started by: simk on June 03, 2024, 06:31:56 pm

Title: Turbo! Longbow
Post by: simk on June 03, 2024, 06:31:56 pm
I know its on the edge of being primitive but showing you my new bow. Made a few of them over the past 6 months and let them test and shoot by friends. Now hope people will like it when I present it at our local bow fair. Hope to bring a few fg guys back to natural material. Basically my ASL Hill-Style template with plenty reflex. It's my actual bowyers-dream come true. I just call it Turbo! Good thing is, I can make these now fairly quick and easy, almost flawless and hit drawweight. Really happy and proud of that. This one is bog-ash, iPE, maple, black locust and horn. Light version. Its not the first time using Bog-Ash in a laminate - still find it very astonishing that the wood, after so long time, still preserved the mechanical properties to keep a bow together!
cheers
Simon
Title: Re: My new bow
Post by: simk on June 03, 2024, 06:32:58 pm
..
Title: Re: My new bow
Post by: simk on June 03, 2024, 06:33:50 pm
...
Title: Re: My new bow
Post by: simk on June 03, 2024, 06:37:11 pm
thanks for critics  :)
Title: Re: Turbo! Longbow
Post by: superdav95 on June 03, 2024, 07:17:19 pm
Wow. Just wow!   I’m salivating over here those are beautiful Simon.   
Title: Re: Turbo! Longbow
Post by: willie on June 03, 2024, 07:55:25 pm
quite nice!

the black belly lam is horn? details please....thickness? taper?   fauxhorn?
Title: Re: Turbo! Longbow
Post by: simk on June 03, 2024, 08:01:11 pm
no thickness taper apart of the boo willie! You want to see it hinge fade to midlimb after glueup. rest is being tillered by hand.  8) buffalo horn. most of the tillering is mainly done by the sides and fine tillering by bevelling the belly edges some. With horn even a mediocre tiller is good enough. Critical part is the boo, if you do not sinew. horn is more kryptonite than wood. But sinew would slow it down and create handshock at that length. I have a thickness sander and can get my lams pretty precise. that helps a lot. By changing woods in the grip area I can vary physical mass from 430-600 gramms. Made them up to 45# drawweight. 50# should be possible safe. Wouldn't bet for much more (without sinew) - its maxed out. But my goal is to make lower drawweights shoot well.
thanks dave!
Title: Re: Turbo! Longbow
Post by: willie on June 03, 2024, 08:47:08 pm
thanks Simk

hoping for a full draw pic to see how much outer half bends
Title: Re: Turbo! Longbow
Post by: simk on June 03, 2024, 09:00:12 pm
willie: well, latlely didn't come round often for a fulldraw pic...cought a tennis elbow hauling yew  (R just to get an idea...random pic from tillering process...and its not taking set...hahaahaha....
Title: Re: Turbo! Longbow
Post by: willie on June 03, 2024, 09:18:37 pm
thats quite a bit of bend on the inner half, thanks for adding the pics

bog ash .... so long time

has the timber been underwater long?   from a northern country?
Title: Re: Turbo! Longbow
Post by: simk on June 03, 2024, 09:25:49 pm
as said. maxed out.
dunno exactly under what circumstrances and how long that timber has been stored and seasoned. maybe 400 years, maybe 1000? comes from serbia.
cheers
Title: Re: Turbo! Longbow
Post by: Will B on June 03, 2024, 09:53:09 pm
Wow!!  Beautiful bows and impressive numbers. Nice work Simon
Title: Re: Turbo! Longbow
Post by: Selfbowman on June 03, 2024, 10:16:03 pm
Simon beautiful bows as usual. I haven’t tried putting that much reflex in the center of the limbs. I bet it is maxed out. With reflex in the middle like that how is the hand shock. What are the reports from the shooters? Again very nice work on the bows.
Title: Re: Turbo! Longbow
Post by: Muskyman on June 03, 2024, 11:34:05 pm
Pretty bows sir.
Title: Re: Turbo! Longbow
Post by: razorbak on June 04, 2024, 12:28:18 am
Hot damn that’s very impressive sir
Title: Re: Turbo! Longbow
Post by: simk on June 04, 2024, 04:23:49 am
thanks guys!
Arvin: The first one I made one with a full horn belly and conventional tiller. It shot horrible - ugly handshock.
These now shoot close to perfect. The trad-recurve boys and girls at the club just take their own carbon arrows and shoot as if it were their usual bow. they say its almost no diffference to their bows. Handshock is not noticable until 8gpp and 8gpp is he recommended arrowweight for best fun. You have some at 7gpp but its still great fun. With wood you cannot put that reflex in there - it woiuld always pull out. If I would shift the reflex towards the outers it would be hard to tiller the bow into the classic longbow shape. bowmaking became a childs play for me now. when wood is collapsing under the strain horn not even has a tired smile on the face. I'm extremly happy with how everything works. Once I find the time the next experiment will be making one of these with little recurves.
cheers   
Title: Re: Turbo! Longbow
Post by: GlisGlis on June 04, 2024, 05:32:14 am
mighty fine bows
I know nothing about bow business but they look winners
Great attention to details. Very well done !
Title: Re: Turbo! Longbow
Post by: Zugul on June 04, 2024, 08:52:44 am
absolutely stunning work right there!
Title: Re: Turbo! Longbow
Post by: mmattockx on June 04, 2024, 12:18:03 pm
Simon, those are simply spectacular bows. What is the back profile and how wide are they?


Mark
Title: Re: Turbo! Longbow
Post by: Selfbowman on June 04, 2024, 03:36:44 pm
Simon do you think gemsbok horn would be comparable. I built this boo backed boo core gemsbok horn belly bow .it took some set.
Title: Re: Turbo! Longbow
Post by: Selfbowman on June 04, 2024, 03:39:45 pm
This bow broke a broadhead record in the ladies 50# class. Can’t remember the distance. Probably around 230 yds.
Title: Re: Turbo! Longbow
Post by: simk on June 04, 2024, 05:23:10 pm
Mark, the profile starts paralell basically, then pyramid. But its all blurred and rounded some by handtools. I make these 32-34mm wide.

Arvin, I have not worked gemsbock. People say it is a little less dense than buffalo horn but basically similar properties. Very strange for your bow to take set! I could imagine if the Horn is very very thin, the wood beyond getting out of shape and taking set. But that is really strange. Maybe its not enough horn so the wooden aspects overrules the little horn. But they say 1mm of horn over maple is enough to make a 50# hornbow! I cannot help really. 
Title: Re: Turbo! Longbow
Post by: superdav95 on June 04, 2024, 10:51:48 pm
Simon. I think it’s wonderful stuff Buffalo horn when used on belly of bows.  I’ve messed around with various glues, natural and non natural including 2 part epoxy’s.   So far I’ve noticed best adhesion with sinew or fish glues on a bow bellied with horn and backed also with sinew. this combination is very well established.  I love the way you have incorporated the horn lam on a more modern type bow build.  Very cool.  I think I will have to put this one one my list of bow builds in future.  I love the idea of the boo backed buff horn combo.  Appears to be a winning combination.  Thanks for posting.  I
Title: Re: Turbo! Longbow
Post by: bassman211 on June 04, 2024, 11:11:35 pm
Nice clean work.