Possible new Whisper model

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Re: Possible new Whisper model

Postby whisper » Thu Aug 30, 2012 11:39 am

The design evolved a bit. The 120-140kt market segment already has a number of offerings. I decided to focus on the 150 plus market which is a bit thin apart from one major contender. Hopefully it was a good decision :D
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Re: Possible new Whisper model

Postby whisper » Mon Sep 03, 2012 10:01 am

Yesterday I expanded the speed envelope a bit more and got to 200MPH indicated. Small fixed tabs on the elevator and rudder now allow the aircraft to fly hands off at speed. Previously I had erratic rpm readings above 2400. Rainier told me to increase the size of the resistor and now all is well. I now know that the prop is too fine. I cannot go anyweher near WOT in level flight as the revs quickly hit 2700+. Throttled back to 2600 the EFIS is giving a TAS of 192MPH :D :D . Lots of throttle travel remains. I will soon try the Whirlwind ground adjustable prop and then should be able to go to WOT. I have no idea what the speed will go to yet.
The aircraft has a benign stall with a clean break at 63MPH indicated (clean). Handling is very very sweet and I am starting to make friends with this machine..... :)
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Re: Possible new Whisper model

Postby Johan Nortje » Thu Oct 11, 2012 10:48 am

Hi Russell,
It seems sins 3 September you are busy with exams at the university and no flying.
Do the students give you ahard time???? :( :(
What did you do during the holidays and weekends.
Please give us a update on the X.
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Re: Possible new Whisper model

Postby whisper » Thu Oct 11, 2012 11:49 am

lost 3 weekends of flying with an overseas trip and another local trip....

this weekend I'm home and the weather looks like it might even play along :D
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Re: Possible new Whisper model

Postby whisper » Thu Oct 11, 2012 11:50 am

also busy preparing the new propeller (spinner etc).....might put that on on sunday....
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Re: Possible new Whisper model

Postby whisper » Mon Oct 15, 2012 9:33 am

2.5hrs this weekend - all good :D
Joined teh Algoa Flying Club on part of their poker run which included landings at Uitenhage and AJ's.
Pics taken by Rego Burger using his cellphone (from Brett Routly's RV)
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Re: Possible new Whisper model

Postby whisper » Wed Oct 24, 2012 11:41 am

The X will be on static display at the PE airshow this weekend. Cannot display it as proving flights not yet completed :(
Hoping to also have a basic kit on display...so if you're in the area come and take a look!
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Re: Possible new Whisper model

Postby whisper » Sun Oct 28, 2012 5:08 pm

survived PE airshow....kids performed structural tests on wings, spats etc.... :evil:

short flight today..IPAD screenshots into and with the wind....guessing 70% power :D
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Re: Possible new Whisper model

Postby whisper » Mon Oct 29, 2012 9:12 am

another pic taken at the PE Airshow.......notice the new rudder balance....works well and now also looks more like a Whisper :)

The original large unshielded rudder balance caused some fishtailing (particularly in turbulence). New shape has solved all of that :D
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Re: Possible new Whisper model

Postby whisper » Tue Nov 20, 2012 12:45 pm

back in action after waiting a week for a new alternator regulator.... :D
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