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View Poll Results: RV4 or RV8 or RV7
VANS RV4 7 11.29%
VANS RV8 49 79.03%
VANS RV7 6 9.68%
Voters: 62. You may not vote on this poll

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Old 04-14-2017, 02:50 AM
giles1206 giles1206 is offline
Join Date: Apr 2017
Location: UK
Posts: 12
Question RV8 or RV4...want to buy an RV8

Gentlemen! Experience is key & knowledge is king, & some of you may have both so please help me make this decision as I have neither!

We are looking for a fun, fast, aerobatic with 2 up with half an hour fuel at least. We are not the smallest animals weighing in at 100kg each!

So I put it to you, what is it I need to buy? An RV4 or RV8? Prefer the tandem arrangement over side by side however not adverse to being told otherwise. Can you please all help me make a decision to which model path I should go down.

If anyone hears or knows of any good strong well built VANS RV4 or RV8 around for sale with 180 - 200+ hp IO-360+ engine with full inverted fuel & oil system & CS prop & preferable with full dual controls with instruments in the rear cockpit as well. That would be greatly appreciated. I want to buy an RV as soon as possible. Please help me & please help me find a good one.

Thank you for your help on this one! It's who you know not what you know!

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Old 04-14-2017, 05:31 AM
N661DJ N661DJ is offline
Join Date: Feb 2006
Location: Winter Haven
Posts: 303
Default RV8

Check your PM's
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Old 04-14-2017, 07:13 AM
Saville's Avatar
Saville Saville is offline
Join Date: May 2014
Location: KBVY Massachusetts
Posts: 846

If you want two-up acro then go with the -8.

An RV-4 with a -360, constant speed prop and inverted oil is going to be heavy. I've seen it done but it takes the -4 far away from its design point.

Go to the Van's pages and record the gross weights and acro weights of the planes. Then figure in your additional weights of two up, the CS prop, the inverted oil, parachutes and gas.

See what you get.
Flying RV-8 N880BC
2019 Dues - happily paid.

Last edited by Saville : 04-14-2017 at 07:15 AM.
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Old 04-14-2017, 08:47 AM
acam37's Avatar
acam37 acam37 is offline
Join Date: Aug 2012
Location: Lufkin Tx
Posts: 644

I've owned both. What you need is the RV-8. The -4 is much better for aerobatics but with 2 heavy people it's not recommended.
Arlie Conner
RV-4 (N124TT) Sold
RV-8 (N269CP) Sold
RV-4 (N684ML) under construction
KOCH Nacogdoches
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Old 04-14-2017, 10:56 AM
Mark Albery's Avatar
Mark Albery Mark Albery is offline
Join Date: Jul 2007
Location: Fremont CA
Posts: 654

You would be well advised to stick to Van's weight and CG recommendations for aerobatics especially.

Aero gross is 1350lb for the -4 and 1600lb for the -8. Even accounting for the -8 being typically 100lb heavier than a -4, that still gives it an extra 150lb of aerobatic payload. The largest passenger that I've rotated about all axes in the -4 was a 10 year old as a birthday treat. With the -8 it stayed in limits with a 180 lb passenger.

A typical passenger will also put the -4 behind the aft CG acro limit and make it very light in pitch and easy to over stress in a pull-up, especially in less experienced hands.
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Old 04-14-2017, 11:41 AM
KatieB's Avatar
KatieB KatieB is offline
Join Date: Jun 2010
Location: Lawrence, KS
Posts: 1,058

I'm far from a gentleman, but voted anyhow. We owned an -8 and it's quite roomy in the back. A 220 pounder (100 kilogrammer?) won't fit in the back of the -4, especially for acro.
Katie Bosman Krotje
Sold my RV-3B project...
But RV8 3301 is in the works.
Jabiru J200 flying after restoration and new panel!
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