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AP hornet 09 conversion - 9/26/2012 2:54 AM   
AMB


 

Posts: 6495
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From: winter park, FL, USA
Status: offline 		will try a run on this one tomorrow 9x4 wood zinger martin
has not been run in 4 years
yes the mount could use a cleanup

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RE: AP hornet 09 conversion - 9/26/2012 3:26 AM   
ffkiwi


 

Posts: 1189
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From: Upper HuttWellington, NEW ZEALAND
Status: offline 		One of Andy's conversions, Martin?

ChrisM
'ffkiwi'

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RE: AP hornet 09 conversion - 9/26/2012 3:39 AM   
AMB


 

Posts: 6495
Joined: 6/10/2003
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From: winter park, FL, USA
Status: offline 		yes, there are engines Bob Davis did not make heads for he is set up for production runs of the more popular engines not one offs
most of mine are Davis and just a few of Andys, a guess the rarest is the UK made Irvine 36, all my other Irvines 40s and 53s Davis (lots) martin

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RE: AP hornet 09 conversion - 9/26/2012 3:47 AM   
ffkiwi


 

Posts: 1189
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From: Upper HuttWellington, NEW ZEALAND
Status: offline 		I don't have any conversions other than the original Davis 020 and 049Cox, and the MECOA Cox 09 one-all my diesels are purpose built as it were........

CJM
ffk

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RE: AP hornet 09 conversion - 9/26/2012 6:12 PM   
AMB


 

Posts: 6495
Joined: 6/10/2003
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From: winter park, FL, USA
Status: offline 		WELL after its 4 yr hibernation a spin with the sullivan 1/2A starter Davis 1/2A fuel took a few seconds to run right, hand flipping just resulted in a few pops
starter a couple of seconds nice idle 3200 3300 instant response to WOT 10200=10300 with the zinger wood 9x4 repeatable 3 times
It is BB ABC " the first one suffered China syndrome terrible compression, sent it back and this one ok martin

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RE: AP hornet 09 conversion - 9/26/2012 11:09 PM   
greggles47


 

Posts: 328
Joined: 7/5/2006
Last Login: 5/18/2013
From: Sydney, AUSTRALIA
Status: offline 		Here's mine. The conversion was done by Lance Smith. I added the brass comp screw, to stop comp unwinding in running.

Beautiful little motor. Runs Olly brew& spins a Taipan 7X4 at about 13K (Guesstimate as I haven't put a tach on it).

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RE: AP hornet 09 conversion - 9/26/2012 11:23 PM   
AMB


 

Posts: 6495
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From: winter park, FL, USA
Status: offline 		See you put on c/l carb martin

The factory carb does not allow any prop with rear overhang no clearance

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RE: AP hornet 09 conversion - 9/26/2012 11:42 PM   
greggles47


 

Posts: 328
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From: Sydney, AUSTRALIA
Status: offline 		Yes Martin, It's very tight in there. If I had any problems starting it and needed to choke it I'd need to rethink the venturi. But it really is a sweet handling motor. Rarely needing much flicking to get going.

The needle on that one (I also have a glow version) is underneath and a bit susceptible to landing damage. I could very easily turn a much shorter venturi and use the cinch pin as the location for the needle. This would allow a peripherally jetted venturi.

Another idea would be to use a prop with a narrower cuff, but the Taipan is pretty crash resistant - an important factor on a combat model.

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RE: AP hornet 09 conversion - 9/27/2012 12:06 AM   
AMB


 

Posts: 6495
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Status: offline 		Greg with rear exhaust and factory carb I would guess this the original design was a car engine martin

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RE: AP hornet 09 conversion - 9/27/2012 12:21 AM   
qazimoto


 

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From: Infront NSW, AUSTRALIA
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quote:

ORIGINAL: AMB

Greg with rear exhaust and factory carb I would guess this the original design was a car engine martin


The original design was an SY 09 size Chinese c/l speed engine. I understand that there's one on ebay right now.

The layout of most of these FIRE engines was inspired AFAIK by the Rossi 15 back in the 1970's.

Even the car and buggy motors.




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RE: AP hornet 09 conversion - 9/27/2012 12:25 AM   
AMB


 

Posts: 6495
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From: winter park, FL, USA
Status: offline 		Gazimoto thx for the info clears up that mystery for me martin

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RE: AP hornet 09 conversion - 9/27/2012 12:39 AM   
qazimoto


 

Posts: 797
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quote:

ORIGINAL: AMB

Gazimoto thx for the info clears up that mystery for me martin


The AP09 also has a big brother in the same case. I believe that while they call it a .15 that ir's more like a 2.3cc.

Anyway Hobbyking has them for sale at $32 each.

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RE: AP hornet 09 conversion - 9/27/2012 12:57 AM   
AMB


 

Posts: 6495
Joined: 6/10/2003
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From: winter park, FL, USA
Status: offline 		Well I am in good shape on 15s 3 MVVS a Sharma, a PAW, an Irvine 15 which you know was a car engine you can see where they just milled off the high head fins blue head and bright and shiney fins where milled down to aircraft size and extended prop nut on shaft to take a prop, rear exhaust the Irvine has an AJC head
martin
whoops forget one ASP 15

I am a Dodo on heli engines could the irvine `15 been one? seems small though



< Message edited by AMB -- 9/27/2012 1:21 AM >

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RE: AP hornet 09 conversion - 9/27/2012 1:04 AM   
fiery


 

Posts: 2279
Joined: 2/2/2002
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From: Hervey Bay Queensland, AUSTRALIA
Status: offline 		From an old promotional brochure - the range of Irvine Buggy engines.

Your "milled head" example is probably one of the .15's Martin

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RE: AP hornet 09 conversion - 9/27/2012 1:42 AM   
AMB


 

Posts: 6495
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From: winter park, FL, USA
Status: offline 		Fiery YUP blue head blue carb 15 buggy thx martin

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RE: AP hornet 09 conversion - 10/1/2012 1:04 AM   
greggles47


 

Posts: 328
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From: Sydney, AUSTRALIA
Status: offline 		Here's the venturi with a bit more clearance to the prop.

2.8mm throat. peripheral jetting.

Glow version of the AP Hornet, revs like mad on Taipan 7X4

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RE: AP hornet 09 conversion - 10/1/2012 1:13 AM   
ffkiwi


 

Posts: 1189
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From: Upper HuttWellington, NEW ZEALAND
Status: offline 		And that looks suspiciously like the much loved OS Max 10-FSR NVA installed, Greggles........peripheral jetting? how many holes and what size?

ChrisM
'ffkiwi'

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RE: AP hornet 09 conversion - 10/1/2012 2:30 AM   
greggles47


 

Posts: 328
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From: Sydney, AUSTRALIA
Status: offline 		Chris,

6 holes about .8mm

Quick & dirty job, but it works well.

G

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RE: AP hornet 09 conversion - 10/1/2012 2:47 AM   
ffkiwi


 

Posts: 1189
Joined: 7/25/2005
Last Login: 5/18/2013
From: Upper HuttWellington, NEW ZEALAND
Status: offline 		And the circumferential groove would be 4mm or thereabouts?

ChrisM
'ffkiwi'

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RE: AP hornet 09 conversion - 10/1/2012 5:00 AM   
greggles47


 

Posts: 328
Joined: 7/5/2006
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From: Sydney, AUSTRALIA
Status: offline 		The groove is the same size as the NVA, in this case 4mm.

The NVA hold the venturi in place, as it replaces the cinch pin.

G

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RE: AP hornet 09 conversion - 10/1/2012 6:18 AM   
ffkiwi


 

Posts: 1189
Joined: 7/25/2005
Last Login: 5/18/2013
From: Upper HuttWellington, NEW ZEALAND
Status: offline 		I though that'd be the case..........

ChrisM
'ffkiwi'

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