WM Mustang& YS91 mounting and cowl
11-29-2003, 02:11 AM
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WM Mustang& YS91 mounting and cowl
OK I've searched and found nothing on this so it's time to ask...
WM Dago red with a YS 91..I'm trying to get the recomended 4.65 inches from the drive washer to the firewall but it ain't makin it. Is there a differant mount to use or do I need to modify the stock one? The other option is to just mount it and cheat the cowl out.
I know many have this same set-up so let me know what you have done and how the CG came out. Any Pics would really be appreciated.
WM Dago red with a YS 91..I'm trying to get the recomended 4.65 inches from the drive washer to the firewall but it ain't makin it. Is there a differant mount to use or do I need to modify the stock one? The other option is to just mount it and cheat the cowl out.
I know many have this same set-up so let me know what you have done and how the CG came out. Any Pics would really be appreciated.
11-29-2003, 06:38 AM
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RE: WM Mustang& YS91 mounting and cowl
how much are we talkin about basin? if its 1/4 inch or so you could probly just move your cowl forward a bit and save hackin your firewall. are ya mounting inverted? sure would look nice...post some pics when yur done ok? [8D]
11-29-2003, 08:46 AM
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RE: WM Mustang& YS91 mounting and cowl
It's almost an inch and yes it's inverted, being a YS inverted is no problem. I'll talk to one of the guys at the field today and see what they did. I think the stock mount won't work without modification and I don' really want to have to hack the firewall.
11-29-2003, 05:40 PM
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RE: WM Mustang& YS91 mounting and cowl
I flew the WM P51 for a couple years with a ST90 in it which got me 105mph. There was alot of whining about the flimsy retracts. I never had a problem but i also slopped a bunch of epoxy with milled fiberglass on the back side of the mounting blocks.
When i had that battery failure, that plane went in full speed and scattered over 50 ft but those retracts were still in them blocks! I also used Kavan wheels. This plane can land real hot and these wheels will helpt you slide the plane without that bad wheel hopping.
When i had that battery failure, that plane went in full speed and scattered over 50 ft but those retracts were still in them blocks! I also used Kavan wheels. This plane can land real hot and these wheels will helpt you slide the plane without that bad wheel hopping.
12-10-2003, 11:53 PM
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RE: WM Mustang& YS91 mounting and cowl
Have you solved your troubles yet? If not I will send you the tricks that we use to cleanly install YS 91's to 140's in WM P-51's without changing the firewalls. Very easy to do.
12-11-2003, 10:29 AM
#6
RE: WM Mustang& YS91 mounting and cowl
mahmc1,
I am having the same problems as well (ys 110). I have heard about some guys in California racing these planes. Please send me any info you have. I am trying to get people interested in some warbird racing going at my club.
I am having the same problems as well (ys 110). I have heard about some guys in California racing these planes. Please send me any info you have. I am trying to get people interested in some warbird racing going at my club.
12-11-2003, 08:58 PM
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RE: WM Mustang& YS91 mounting and cowl
How about sending the tricks to me. I flew mine for a couple years with a G90. I am building another and will go fourstroke. Thanks, Mike
ORIGINAL: mahmc1
Have you solved your troubles yet? If not I will send you the tricks that we use to cleanly install YS 91's to 140's in WM P-51's without changing the firewalls. Very easy to do.
Have you solved your troubles yet? If not I will send you the tricks that we use to cleanly install YS 91's to 140's in WM P-51's without changing the firewalls. Very easy to do.
12-11-2003, 09:10 PM
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RE: WM Mustang& YS91 mounting and cowl
mahmc1
I'm still working on it but a friend who has the same set-up told me to mount it as per plans and the cowl has enough in back so I can cheat it forward. Why not post what you know about it so I can compare and as Cyclic mentioned I'm sure more folks will want the info in the future.
I'm still working on it but a friend who has the same set-up told me to mount it as per plans and the cowl has enough in back so I can cheat it forward. Why not post what you know about it so I can compare and as Cyclic mentioned I'm sure more folks will want the info in the future.
