Today's Message Index:
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1. 08:24 AM - Re: KIS landings ()
2. 11:40 PM - SV: Re: KIS landings (Hans Christian Erstad)
Message 1
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| Subject: | Re: KIS landings |
2/25/2011
Hello Bob, Yesterday I wrote: "I plan to fly this morning and I'll try to
confirm some static RPM and max throttle numbers for my TCM IO-240 B9B
powered KIS TR-1 and get back to you."
Here are the results of my flight yesterday:
1) STATIC RPM: 2,000 AT FIELD ELEVATION OF 190 FEET MSL
2) WOT (Wide Open Throttle) RPM at 3,000 FT MSL: 2,750
3) INDICATED AIRSPEED: 140 KNOTS
4) FUEL FLOW: 11.1 GALLONS PER HOUR
It would appear that my 68 inch diameter by 69 inch pitch Prince propeller
is a fairly decent trade off between climb / go around and cruise
performance. Yesterday was fairly cool so this performance is better than I
would see on a hot summer day. Also at a nominal cruise altitude of 8,000
feet MSL on a standard day I would expect that the engine could probably
exceed the limit of 2,800 RPM at WOT by a little bit.
OC
================================================================
From: <bakerocb@cox.net>
Sent: Thursday, February 24, 2011 7:41 AM
Subject: Re: KIS landings
> 2/24/2011
>
> Hello Bob, You wrote: "....he complained about the KIS's poor performance
> when executing a "go around"."
>
> A) Your memory is phenomenal. Below is copied one of the early, if not the
> very first, postings by Alfred in which he stated: "...would just like a
> little extra ooomph when I push in the throttle for the odd bump or
> go-round". I think that he had something like 13 landings in his recently
> bought KIS at that time. Maybe he was expecting the KIS to jump around
> like the microlights that he talked about in some detail in his subsequent
> postings.
>
> B) Alfred also wrote: " My current prop is a Chris Lodge 66.5" dia x 68"
> pitch. Static rpm is 2200 and
> max rpm in level flight is 2500 at low altitude. However, with that 2500
> rpm I see 140 knots IAS - not yet quite sure how accurate that airspeed
> indicator is."
>
> I guess he feels that he wants to change his prop so that he reaches the
> full 2,800 RPM limit of the engine at max throttle in level flight at low
> altitude thereby giving him more of a climb / take off oriented prop than
> a cruise prop.
>
> My prop is a Prince 68 inch diameter by 69 inch pitch. I plan to fly this
> morning and I'll try to confirm some static RPM and max throttle numbers
> for my KIS and get back to you.
>
> OC
>
> PS: This Matronics list is fabulous in that one can go to the archives to
> search and extract info like this.
>
> ================================================================
>
> Match: #45
> Message: #22269
> Subject: Re: SV: Prince P-tip Propeller Users?
> From: "BlueSkyFlier" <bleuskyfly(at)teledynamix.com>
> Date: Feb 01, 2011
>
> Thank you for the information about your prop performance Hans
> Christian.
>
> My current prop is a Chris Lodge 66.5" dia x 68" pitch. Static rpm is
> 2200 and
> max rpm in level flight is 2500 at low altitude. However, with that 2500
> rpm
> I see 140 knots IAS - not yet quite sure how accurate that airspeed
> indicator
> is.
>
> Let me use this opprtunity to also thank you in person for the excellent
> POH you
> compiled for the KIS2. It was an invaluable source of information when I
> was
> evaluating the KIS2 type as a potential buyer.
>
> I agree with your comment regarding maintaining a fairly flat/level
> attitude until
> touchdown. With the laminar flow wing the KIS2 does not like to have its
> nose
> pointed too far skyward and tends to bite back with a forward rotating
> moment
> if you do pull it up too steeply, especially with full flaps down.
>
> With one stage flaps she seems quite well behaved and has no trouble
> keeping the
> nose up after touch-down. I am quite happy with her handling, but would
> just
> like a little extra ooomph when I push in the throttle for the odd bump
> or go-round
> :o)
>
> Seems that my Chris Lodge propeller will do for long range high level
> cruising.
> So perhaps I'll keep that for the odd long trip and optimise the Prince
> P-tip
> for more performance at the lower end of the range.
>
> Regards,
> Alfred
> ==============================================================
> From: <rhshumaker@cox.net>
> To: "Baker" <bakerocb@cox.net>
> Sent: Wednesday, February 23, 2011 6:12 PM
> Subject: KIS landings
>
>
>> OC:
>> There was another posting from this guy in which he complained about the
>> KIS's poor performance when executing a "go around". I can't find that
>> email now.
>> Best,
>> Bob
>> END
>
>
Message 2
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| Subject: | Re: KIS landings |
Hello OC
As I reported earler I usually get 2200 RPM static and 2800 WOT (and maybe
exceeding 2800 after a minute or so, but I never run wide open and 2800 for
longer times) at 2-3000' altitude
This is with IO-240A and Prince P-TIP with 62 dia and 68 pich.
(manufactured around 1997-1998)
Is yours a P-TIP too OC ?
When I bought mine, Prince claimed that a P-Tip versjon would "act" like a
normal version with 4inch or so larger diameter and same pitch. (I cannot
remember exatly what he said) So the only reason to have a P-Tip would be to
increase ground clerance and decrease tip speed. Less tip speed could in
theory result in less noise (one of the reasons I went for Prince and
P-Tip). In case someone is not familiar with the Prince term "P-Tip", it is
sort of a winglet, and I am sure Prince web site explain it all. (but have
not checked)
Regads
Hans Christian, TR-1 #032
-----Opprinnelig melding-----
Fra: owner-kis-list-server@matronics.com
[mailto:owner-kis-list-server@matronics.com] P vegne av bakerocb@cox.net
Sendt: 25. februar 2011 17:17
Til: SHUMAKER, BOB
Emne: KIS-List: Re: KIS landings
2/25/2011
Hello Bob, Yesterday I wrote: "I plan to fly this morning and I'll try to
confirm some static RPM and max throttle numbers for my TCM IO-240 B9B
powered KIS TR-1 and get back to you."
Here are the results of my flight yesterday:
1) STATIC RPM: 2,000 AT FIELD ELEVATION OF 190 FEET MSL
2) WOT (Wide Open Throttle) RPM at 3,000 FT MSL: 2,750
3) INDICATED AIRSPEED: 140 KNOTS
4) FUEL FLOW: 11.1 GALLONS PER HOUR
It would appear that my 68 inch diameter by 69 inch pitch Prince propeller
is a fairly decent trade off between climb / go around and cruise
performance. Yesterday was fairly cool so this performance is better than I
would see on a hot summer day. Also at a nominal cruise altitude of 8,000
feet MSL on a standard day I would expect that the engine could probably
exceed the limit of 2,800 RPM at WOT by a little bit.
OC
================================================================
From: <bakerocb@cox.net>
Sent: Thursday, February 24, 2011 7:41 AM
Subject: Re: KIS landings
> 2/24/2011
>
> Hello Bob, You wrote: "....he complained about the KIS's poor
> performance when executing a "go around"."
>
> A) Your memory is phenomenal. Below is copied one of the early, if not
> the very first, postings by Alfred in which he stated: "...would just
> like a little extra ooomph when I push in the throttle for the odd
> bump or go-round". I think that he had something like 13 landings in
> his recently bought KIS at that time. Maybe he was expecting the KIS
> to jump around like the microlights that he talked about in some
> detail in his subsequent postings.
>
> B) Alfred also wrote: " My current prop is a Chris Lodge 66.5" dia x 68"
> pitch. Static rpm is 2200 and
> max rpm in level flight is 2500 at low altitude. However, with that
> 2500 rpm I see 140 knots IAS - not yet quite sure how accurate that
> airspeed indicator is."
>
> I guess he feels that he wants to change his prop so that he reaches
> the full 2,800 RPM limit of the engine at max throttle in level flight
> at low altitude thereby giving him more of a climb / take off oriented
> prop than a cruise prop.
>
> My prop is a Prince 68 inch diameter by 69 inch pitch. I plan to fly
> this morning and I'll try to confirm some static RPM and max throttle
> numbers for my KIS and get back to you.
>
> OC
>
> PS: This Matronics list is fabulous in that one can go to the archives
> to search and extract info like this.
>
> ================================================================
>
> Match: #45
> Message: #22269
> Subject: Re: SV: Prince P-tip Propeller Users?
> From: "BlueSkyFlier" <bleuskyfly(at)teledynamix.com>
> Date: Feb 01, 2011
>
> Thank you for the information about your prop performance Hans
> Christian.
>
> My current prop is a Chris Lodge 66.5" dia x 68" pitch. Static rpm
> is 2200 and max rpm in level flight is 2500 at low altitude. However,
> with that 2500 rpm I see 140 knots IAS - not yet quite sure how
> accurate that airspeed indicator is.
>
> Let me use this opprtunity to also thank you in person for the
> excellent POH you compiled for the KIS2. It was an invaluable source
> of information when I was evaluating the KIS2 type as a potential
> buyer.
>
> I agree with your comment regarding maintaining a fairly flat/level
> attitude until touchdown. With the laminar flow wing the KIS2 does
> not like to have its nose pointed too far skyward and tends to bite
> back with a forward rotating moment if you do pull it up too steeply,
> especially with full flaps down.
>
> With one stage flaps she seems quite well behaved and has no trouble
> keeping the nose up after touch-down. I am quite happy with her
> handling, but would just like a little extra ooomph when I push in
> the throttle for the odd bump or go-round
> :o)
>
> Seems that my Chris Lodge propeller will do for long range high level
> cruising.
> So perhaps I'll keep that for the odd long trip and optimise the
> Prince P-tip for more performance at the lower end of the range.
>
> Regards,
> Alfred
> ==============================================================
> From: <rhshumaker@cox.net>
> To: "Baker" <bakerocb@cox.net>
> Sent: Wednesday, February 23, 2011 6:12 PM
> Subject: KIS landings
>
>
>> OC:
>> There was another posting from this guy in which he complained about
>> the KIS's poor performance when executing a "go around". I can't
>> find that email now.
>> Best,
>> Bob
>> END
>
>
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