The worlds fastest 4 cylinder aircraft

[gofastclint]

http://www.polenspecial.com/

 

What a top looking aircraft, 500kmph on 180hp and its all metal!

 

I wish it came as a kit.

 

What are your thoughts gentlemen?

 

 

[Guest Cloudsuck]

Sex on wings :thumb_up:

 

 

[gofastclint]

Sex on wings :thumb_up:

I know, hot

 

The people on the website love to talk crap, but the plane is cool. single seaters may not be popular, but get 10 of your mates together with one each and a trip down the coast would be a blast.

 

 

[skydog]

Wow

 

WOW WHAT AN AIRCRAFT!!!!

 

Dont know if it will glide very far?

 

 

[jcamp]

Dont know if it will glide very far?

Drag is low so probably pretty good angle

 

One way of looking at it is

 

320 mph=469 fps

 

180hp, 90% prop efficiency @ 469fps drag=190lb=86kg wt

 

C1b is 500 to 1,000 kg so ~ 6:1 at 320mph (278 kts) if only 500kg more if heavier

 

@ say 120 mph square relation gives 12 kg say 20 to allow for increased a of a and induced drag, so more than 25:1

 

 

[skydog]

Xlnt work

 

Great work jcamp, thanks.

 

What about glide on a RV6A?

 

 

[gofastclint]

Great work jcamp, thanks.What about glide on a RV6A?

Speaking of hot, your RV-6 looks great, did you build it yourself? what motor are you running?

 

 

[eastmeg2]

Hate to rain on your party, but there's a 250kt speed limit up to 10,000ft and RAA aren't allowed above 10,000ft.

 

Do you think you can put up with slowing it down that much. ;-)

 

 

[gofastclint]

Hate to rain on your party, but there's a 250kt speed limit up to 10,000ft and RAA aren't allowed above 10,000ft.Do you think you can put up with slowing it down that much. ;-)

If I owned a plane like that, I'd either stick to those limits or go GA.

 

 

[skydog]

Speaking of hot, your RV-6 looks great, did you build it yourself? what motor are you running?

Thanks GFC,

I did not build it as I am not a builders a---hole and have the attention span of a rabbit. I bought it with a partner from a builder in Kingston SA. The plane gets lots of attention for the build and paint quality.

 

It has a standard lycoming 160hp so a TAS of about 145 Kts one up.

 

At height it can go faster and with a strong tailwind can be very exciting.

 

Ground speeds of 180 kts or faster are not uncommon.

 

Standard 6 pack steam gauges, no gizmos, just nice , simple and fast.

 

 

[Guest Cloudsuck]

Yeah nice RV Dog, are you going to register it RAA when the 760kg comes in? Is it VH-LDC?

 

 

[gofastclint]

Yeah nice RV Dog, are you going to register it RAA when the 760kg comes in? Is it VH-LDC?

Too bad the RV8 just misses out on the new change.

 

 

[skydog]

Dear Cloudsuck

 

MTOW 749

 

Not sure about changing over to the 760kg class.

 

May do the maintenance course and keep it VH.

 

run costs have been rather low fortunately.

 

Thanks

 

 

[Guest Cloudsuck]

MTOW 749Not sure about changing over to the 760kg class.

 

May do the maintenance course and keep it VH.

 

run costs have been rather low fortunately.

 

Thanks

Which maintenance course? Am I missing something?

 

 

[skydog]

maintenance

 

Dear Cloudsuck,

 

Good name by the way, you must have done some gliding.

 

No I dont think you have missed anything. CASA will soon allow builder pilots to do maintenance to their aircraft a bit beyond what is already allowed.

 

You will have to attend and pass a course run by your org, like RAA or SAAA. This will then be extended to non-builder owners like me.

 

The SAAA has a good article on it on the front page of their website.SAAA - We are the Builders of AUSTRALIAN EXPERIMENTAL AIRCRAFT

 

This will reduce maintenance costs in general for me.

 

RAA are discussing the same thing right now for ultralight builders and owners.I think there was discussion about it in the last magazine .

 

Rgds.

 

 

[Guest Cloudsuck]

Wow, that is good news if it gets up for non-builders.