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tc1917(at)bellsouth.net
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 Posted: Tue Jan 20, 2009 4:10 am Post subject: HKS - Slingshot |
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To answer Kevin about his slingshot with an HKS engine is a tuff one. I
have over four hundred hours on my slingshot. Started with a 582 which
pushed it quite well. Worried a bunch about it being 'tail heavy'. Got
news for you, the slingshot seems tail heavy all the time. Pick up the boom
once and you will see. It wants to plant its butt down first unless you
really come in hot. Three point is what it really likes. Faster if there
is a cross wind although I find that putting its feet down quickly and
slowly is best on asphalt. I put a 912UL on my baby a couple of years ago
and really worried about aft CG but the engine actually moved it forward a
tad. It added about thirty five pounds to my mount but it actually lands
better now. I think the 912 shifts some of the weight forward vs the 582.
Dont know what an HKS will do. I suppose it is a lot lighter than a 912 or
582. Anyway, I know the 912 is heavier and I have not had any problem so
far and as I stated, it actually lands better -- and slower for some reason.
One thing I will mention is I believe, and this is only me, that 60 little
ponies might be a little shy for this good ole slingshot. This aircraft is
built for zoom zoom and it really likes the extra doggies back there. I
have heard of a 503 powered one and that was really a dog and the guy did
not like it. Cannot imagine such low power. Little wings need big horsies
back there pushing. This is only my opinion of course. You may be one that
likes a more mild ride but I would caution you with passengers. It takes a
lot more doggies pushing when you have a passenger or a heavy load back
there in the seat. My 582 had to push real hard if I were to give a ride.
Still handled it well but took a lot more to do it. Even the 912 doubles
the take-off distance with 150 lbs back in the seat. You also have to add
about 10 more mph on landing and full flapperons. Now, these are all just
my opinion. By the way, with the 582 I got about 5 to 5 and a half gph burn
at 75 and with the 912 I get 3 gph burn at 85 mph. THAT is savings AND fun.
Hope this helped. It is worth what you paid for it. Be mindful of your
airspeed on turns, keep the power on. This little baby like to bank real
tight. Have fun and let us know how it flys. Ted Cowan, Alabama, Slingshot
912UL.
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Dana
Joined: 13 Dec 2007
Posts: 1047
Location: Connecticut, USA
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| Posted: Tue Jan 20, 2009 4:24 am Post subject: HKS - Slingshot |
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At 07:09 AM 1/20/2009, Ted Cowan wrote:
| Quote: |
...the slingshot seems tail heavy all the time. Pick up the boom once and
you will see...
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That doesn't mean it's tail heavy in an aerodynamic sense (relative to the
wing), just that the CG is well aft of the main landing gear.
-Dana
--
People will accept your ideas much more readily if you tell them that
Benjamin Franklin said it first.
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