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Search: Posts Made By: Andy Hill
Forum: RV General Discussion/News 08-17-2015, 01:48 PM
Replies: 4
Views: 1,121
Posted By Andy Hill
If you want to calibrate them, it will not be the...

If you want to calibrate them, it will not be the probes you calibrate, but the instrument / EFIS end.. in turn depending on what type you have, and if calibration is possible.

If you want to check...
Forum: RV General Discussion/News 08-15-2015, 04:22 PM
Replies: 27
Views: 5,329
Posted By Andy Hill
My advice would be neither :eek: But in...

My advice would be neither :eek: But in between
Up is conducive to Flap Damage / difficulty in getting in and out.

Down is vulnerable to a "knock" to the flap dislodging the LE from the wing skin. ...
Forum: Safety 08-13-2015, 07:07 AM
Replies: 19
Views: 5,797
Posted By Andy Hill
End of the day, any Helmet is going to be safer...

End of the day, any Helmet is going to be safer than none.

The priorities I would consider are listed by others and yourself. For a good fit, you will either need to be lucky, or buy a brand from...
Forum: RV-8/8A 08-08-2015, 03:05 PM
Replies: 7
Views: 2,048
Posted By Andy Hill
Hi...

Hi Sam

http://www.g-hilz.co.uk/images/LH_Cover.jpg http://www.g-hilz.co.uk/images/RH_Cover.jpg http://www.g-hilz.co.uk/images/RH_Cover_Open.jpg
I must stress I read your post after Beer O'clock...
Forum: RV-8/8A 08-08-2015, 02:56 AM
Replies: 7
Views: 2,048
Posted By Andy Hill
Suggestion - put the Andair valve further...

Suggestion - put the Andair valve further forward, almost as far as you can and still easily fit pipes etc. You do not alter it often, so if you have to lean, so be it.

Now make yourself a...
Forum: My RV Build Project 08-05-2015, 01:34 AM
Replies: 389
Views: 182,895
Posted By Andy Hill
Dave has commented above re our RV-3B: IO-320, VP...

Dave has commented above re our RV-3B: IO-320, VP Prop, Full Inverted, Basic Weight (unpainted) 733lbs.

In the basic parts from Vans there are weight savings to be made, but not dramatic. For...
Forum: My RV Build Project 07-31-2015, 04:58 PM
Replies: 7
Views: 6,311
Posted By Andy Hill
Engine / Prop

Engine
Lycoming IO-320-B3B which strictly does not exist :eek:

It is a "Narrow Deck" engine (I am led to believe is 10-15lbs lighter than a more modern Wide Deck?) from a 1960 :confused: Piper...
Forum: My RV Build Project 07-31-2015, 04:30 PM
Replies: 7
Views: 6,311
Posted By Andy Hill
W&B Limits

As above:
•Basic Weight / Index: 733lbs / 57.59"

After some minor adjustments (add 1lb VHF, removed 3lb blue plastic, add 2lbs Inverted Oil pipes) now:
•Basic Weight / Index: 733lbs / 57.46"

RV-3B...
Forum: My RV Build Project 07-31-2015, 02:57 PM
Replies: 7
Views: 6,311
Posted By Andy Hill
Electrical System

G-HILI is a lightweight "Day VFR" fun machine. The electrical system comprises:
Low Capacity (14AH) battery
B&C SD-8 Alternator & Regulator (on Vacuum Pad)
No relays - Batt Master directly...
Forum: RV-3 07-24-2015, 03:00 PM
Replies: 8
Views: 2,162
Posted By Andy Hill
Hi Mark As well as Mike's point, your attitude...

Hi Mark

As well as Mike's point, your attitude to cost / weight / simple v complex etc. is important.

Our priority was weight, and for "moving map GPS" have a Samsung Note 3 Neo "Phablet"...
Forum: RV-3 07-21-2015, 03:00 PM
Replies: 3
Views: 978
Posted By Andy Hill
Given the "vague" definition of the Wheel Spats...

Given the "vague" definition of the Wheel Spats (Pants), Gear Leg fairings etc. in the RV-3 plans, I doubt anybody could produce a reliable set of RV-3 fairings?

I also hate glasswork, but made the...
Forum: RV-3 07-13-2015, 03:04 PM
Replies: 5
Views: 1,786
Posted By Andy Hill
I am testing G-HILI RV-3B with an IO-320 and VP...

I am testing G-HILI RV-3B with an IO-320 and VP (MT) Prop. Empty Weight 733lbs. I cannot see any need for more HP! 2500'/min+ and through VNE S&L no issue...
Forum: RV-8/8A 06-30-2015, 02:25 AM
Replies: 14
Views: 7,188
Posted By Andy Hill
Hi Rob Might be worth checking the RV-8 you sat...

Hi Rob

Might be worth checking the RV-8 you sat in had a "standard" panel... some add so many insts / gadgets they make a taller panel.

In reverse, if the panel is the sole issue (and not the...
Forum: RV-3 06-30-2015, 01:29 AM
Replies: 9
Views: 2,904
Posted By Andy Hill
In addition to Paul's sound advice, even if you...

In addition to Paul's sound advice, even if you do find someone with positive experience, it might not translate to your RV-3. The Slider canopy is not part of the kit, so suspect there is a large...
Forum: RV General Discussion/News 06-24-2015, 01:36 AM
Replies: 11
Views: 3,064
Posted By Andy Hill
A strip of adhesive backed foil ('Speedtape')...

A strip of adhesive backed foil ('Speedtape') works well as a temporary dam whilst you are working out how high to make the dams. In fact so well, some years later, it is still there, just punctured...
Forum: My RV Build Project 06-23-2015, 02:49 PM
Replies: 7
Views: 6,311
Posted By Andy Hill
Seems similar Tony, and as you say, needs a...

Seems similar Tony, and as you say, needs a softer top layer ;)

Glad to persuade you Rob :) There is lots of potential...
Forum: My RV Build Project 06-20-2015, 03:01 PM
Replies: 7
Views: 6,311
Posted By Andy Hill
Seat / Harnesses

http://www.g-hilz.co.uk/images/RV3Seat.jpg

The seat 'cushions' are made from 'Minicel' foam - a lightweight closed cell foam used in Kayak seats apparently ;) 2lbs / ft3 :D Comes in various shapes...
Forum: My RV Build Project 06-20-2015, 02:29 PM
Replies: 7
Views: 6,311
Posted By Andy Hill
RV-3B G-HILI (Andy & Ellie Hill)

Whilst this thread specifies "Build Project", and G-HILI has flown - the other section is for "finished RVs". At this point, G-HILI might fly but is far from finished :eek:

I shall try to make...
Forum: RV-3 06-15-2015, 11:58 AM
Replies: 13
Views: 3,765
Posted By Andy Hill
RV-3B G-HILI Flies

3 flights, and ~1hr on G-HILI today :D

IO-320 [160HP], VP MT Prop, Basic Wt/CG 733lbs 57.59". It took the 3rd takeoff before I got full power on it :eek:

No major snags, albeit naturally some more...
Forum: RV-8/8A 06-13-2015, 05:15 AM
Replies: 2
Views: 1,871
Posted By Andy Hill
The RV-8 went to "matched hole" from...

The RV-8 went to "matched hole" from "pre-punched" with the -1 fuselage in ~2007. However, I doubt that it is to the level of the 14?
Forum: RV-3 06-12-2015, 01:20 PM
Replies: 176
Views: 137,772
Posted By Andy Hill
The answer is just over 3lbs :D So now below...

The answer is just over 3lbs :D So now below 730lbs and could shed another 1lb 4oz by changing Bell Fork + std Vans TW for Vans Fork + Vans Lightweight TW - but that is more CG control to me ;)
Forum: RV General Discussion/News 06-10-2015, 12:33 AM
Replies: 5
Views: 1,392
Posted By Andy Hill
As posted in an RV-3 thread:

As posted in an RV-3 thread:
Forum: RV-3 06-10-2015, 12:20 AM
Replies: 8
Views: 2,399
Posted By Andy Hill
It means the maximum weight the structure was...

It means the maximum weight the structure was designed for to fly at +6/-3g.

If weight is >1050lbs, the 'g' limits revert to Normal or Utility )cannot remember which - somebody will).

The debate...
Forum: RV-3 06-10-2015, 12:09 AM
Replies: 176
Views: 137,772
Posted By Andy Hill
Thanks Paul - it's been a long time, but lots...

Thanks Paul - it's been a long time, but lots else on ;) Probably a day's solid work to prep for flight, but no spare diary time for some days.

Yes - all interior primed with Zinc Chromate Etch. I...
Forum: RV-3 06-09-2015, 04:06 PM
Replies: 176
Views: 137,772
Posted By Andy Hill
If all goes well, flying within a week or...

If all goes well, flying within a week or 2?

http://www.g-hilz.co.uk/images/RV3Weigh.jpg

Spec: IO-320, VP Prop, Full Inverted Oil/Fuel, Day VFR, priority lightweight...
Forum: RV-4 05-30-2015, 02:58 AM
Replies: 11
Views: 3,052
Posted By Andy Hill
What size are the 2 remaining bolts? Should...

What size are the 2 remaining bolts? Should AN4H-4A

What type / how many washers under them? Should be 3 AN960-416.

Vans do not tend to supply the AN4H-3A type bolts, but maybe you could use...
Forum: Propellers 05-29-2015, 03:09 AM
Replies: 13
Views: 2,950
Posted By Andy Hill
As above, there is a balance between power, new...

As above, there is a balance between power, new engine, and checking Prop works.

I would suggest these things usually work fine, or not at all. If you follow that school of thought, then now try...
Forum: RV-7/7A 05-25-2015, 02:11 AM
Replies: 24
Views: 7,056
Posted By Andy Hill
I would not 100% agree with this - for short...

I would not 100% agree with this - for short strip work max drag is desired and every degree of flap helps. RV-4 drivers point out how much better the 3/4 is in this regard to the 7/8...

The key,...
Forum: RV-3 05-25-2015, 12:18 AM
Replies: 12
Views: 3,228
Posted By Andy Hill
You may need those techniques as a last resort. ...

You may need those techniques as a last resort. But both RV-8 and RV-3, some oil on the bolts, and a light tap with a soft hammer and they go in/out fine ;)
Forum: RV-3 05-24-2015, 07:09 AM
Replies: 12
Views: 3,228
Posted By Andy Hill
Hi Peter There is no rule book here... nobody...

Hi Peter

There is no rule book here... nobody can tell you how best to do it, you have to make the judgement ;) Vans have not got a clue about building an RV-3, and each builder on here will, I...
Forum: RV-3 05-23-2015, 12:50 AM
Replies: 12
Views: 3,228
Posted By Andy Hill
Hi Larry Suggest good advice, and example shown...

Hi Larry

Suggest good advice, and example shown below (from http://www.vansairforce.com/community/showpost.php?p=422389&postcount=55 ):

http://www.g-hilz.co.uk/images/rv3_F-303.jpg
Forum: RV-3 05-21-2015, 02:06 PM
Replies: 176
Views: 137,772
Posted By Andy Hill
Panel: [ there's no "show us your Panel" thread...

Panel: [ there's no "show us your Panel" thread for the RV-3 ;) ]
http://www.g-hilz.co.uk/images/RV3_Panel_May15.jpg
(will be a mini-tablet/smartphone GPS to right of...
Forum: Traditional Aircraft Engines 05-21-2015, 03:21 AM
Replies: 6
Views: 1,767
Posted By Andy Hill
Hi Andy Heater Muff no issue on #4... ATB Andy

Hi Andy

Heater Muff no issue on #4...

ATB
Andy
Forum: RV General Discussion/News 05-20-2015, 01:57 PM
Replies: 6
Views: 1,283
Posted By Andy Hill
Sounds like Skytec starter, and they have had...

Sounds like Skytec starter, and they have had some bad batches of solenoids.

The Vans start relay draws ~3A, so would hardly pull down the voltage. The starter solenoid draws 20A-40A so will pull...
Forum: Traditional Aircraft Engines 05-19-2015, 03:47 AM
Replies: 6
Views: 1,767
Posted By Andy Hill
Hi Andy Fitted an IO-320 to an RV-3 with a (SD)...

Hi Andy

Fitted an IO-320 to an RV-3 with a (SD) 4-1, and in fact ran engine / exhaust installed for the first time on Friday :D

Not identical to an RV-4, but as near as you get?

It is a tight fit,...
Forum: RV General Discussion/News 05-16-2015, 01:19 AM
Replies: 3
Views: 1,593
Posted By Andy Hill
Hi Chris The answer as ever will be complex......

Hi Chris

The answer as ever will be complex... but if the limiting factor is wing / 'g' then they would require a decrease in Max GW - the reason being that the wing now has a longer average 'arm'...
Forum: RV-3 05-16-2015, 12:08 AM
Replies: 12
Views: 3,228
Posted By Andy Hill
Hi Larry I seem to recall a similar issue, or...

Hi Larry

I seem to recall a similar issue, or that the bulkhead pieces were not pre-drilled contrary to the plans / manual (DWGs 6&11, 7-10/11).

It was the first time I had to make "noises" at...
Forum: RV-3 05-15-2015, 02:27 PM
Replies: 176
Views: 137,772
Posted By Andy Hill
Engine Start...

http://www.g-hilz.co.uk/images/RV3_First_Engine_Start_15May15.jpg

1st Engine run today: YouTube (http://youtu.be/SV1pjp5B07g)

An induction leak is suspected (which I know cause of) hence the "not...
Forum: Propellers 05-13-2015, 12:53 AM
Replies: 55
Views: 12,376
Posted By Andy Hill
I think the key is in his "keep up" - he has set...

I think the key is in his "keep up" - he has set the cruise parameters, and if they are beyond where the FP Prop works well, then yes, they will use more fuel.

We can cruise the RV-8 4.2GPH quite...
Forum: Propellers 05-12-2015, 04:32 PM
Replies: 55
Views: 12,376
Posted By Andy Hill
Hi Frank IMO, not really. You will spend 90% of...

Hi Frank

IMO, not really. You will spend 90% of your time cruising at a specific altitude band and power setting. Buy a FP Prop optimised for that regime, and the VP Prop will have no better...
Forum: RV General Discussion/News 05-12-2015, 09:22 AM
Replies: 8
Views: 1,933
Posted By Andy Hill
Hi Sam Here is a suggested layout. Not saying...

Hi Sam

Here is a suggested layout. Not saying there are not easier /cheaper / better ways of doing it.

Tanks to Andair Fuel Valve (rather than Vans) as per plans.

Then Andair Gascolator. In an...
Forum: RV-8/8A 05-09-2015, 04:27 PM
Replies: 3
Views: 1,128
Posted By Andy Hill
Hi Blain Hate to say it, but my suggestion is...

Hi Blain

Hate to say it, but my suggestion is consider going back to the Vans switch as supplied :eek:

It is a relatively high force switch, and needs to be held for some time to alter flaps...
Forum: RV-8/8A 05-07-2015, 08:57 PM
Replies: 19
Views: 3,868
Posted By Andy Hill
Hi Tom Quick thoughts... take as you wish ;) ...

Hi Tom

Quick thoughts... take as you wish ;)


- fuel flop tubes x2 : Suggest just one for simplicity, lightness, has some gauging benefits and fuel useage at low levels
- stall warning vane :...
Forum: RV-6/6A 05-03-2015, 05:28 AM
Replies: 10
Views: 2,138
Posted By Andy Hill
and this is where we differ ;) I spend my day...

and this is where we differ ;) I spend my day job flying boring stable S&L machines. The delight of the RV for me (and I think many) is the light handling given by reduced stability:[Vans] and with...
Forum: RV General Discussion/News 05-03-2015, 01:51 AM
Replies: 4
Views: 1,227
Posted By Andy Hill
Eddie I'm interested in why a P-Mag requires the...

Eddie

I'm interested in why a P-Mag requires the P-Lead ground to a "common earth" rather than just the airframe? If only because ours are just locally grounded near the panel.

The P-Mag ground...
Forum: RV-6/6A 05-02-2015, 04:20 PM
Replies: 10
Views: 2,138
Posted By Andy Hill
Why? An aft CG gives you a more pleasant...

Why?

An aft CG gives you a more pleasant handling experience, lighter control forces, less trim required. Agree, as the CG moves further aft, these characteristics eventually become undesirable and...
Forum: RV-3 05-02-2015, 04:13 PM
Replies: 9
Views: 1,974
Posted By Andy Hill
Nor would I, but the plans call for a 1 1/4"...

Nor would I, but the plans call for a 1 1/4" spacer, and the part is 1 1/4" - so there is no compromise?
Forum: RV-3 05-02-2015, 02:43 PM
Replies: 9
Views: 1,974
Posted By Andy Hill
I would agree in many circumstances ED is...

I would agree in many circumstances ED is important. However, in this case, the part is just a spacer, and the Vans plan clearly show ED not being met.

It's rather like a washer in a Bolt/Nut...
Forum: RV-8/8A 04-29-2015, 07:33 AM
Replies: 17
Views: 4,114
Posted By Andy Hill
I would counter Pierre's (sorry!):For some people...

I would counter Pierre's (sorry!):For some people / "missions" C/S is needed, and for others not. The CG is not an issue - there are plenty of RV-8 build decisions that can influence the CG far more...
Forum: RV-8/8A 04-29-2015, 05:05 AM
Replies: 17
Views: 4,114
Posted By Andy Hill
Hi Nathan I'll kick off ;) Given your weight,...

Hi Nathan

I'll kick off ;)

Given your weight, and the need to do 2 up aeros, and what is good practice anyway for a "fun" RV, build it light. Whilst there are options (usually costly) to change...
Forum: RV General Discussion/News 04-28-2015, 10:07 AM
Replies: 49
Views: 20,165
Posted By Andy Hill
Hi John Well done on dealing with that...

Hi John

Well done on dealing with that one!

Just completing an RV-3 so interested in what might have lead to it?

In the video, do you know what the black objects were going down the RHS, prior the...
Forum: RV General Discussion/News 04-21-2015, 04:46 PM
Replies: 7
Views: 1,658
Posted By Andy Hill
We have used an Andair GAS375 as a Fuel Filter. ...

We have used an Andair GAS375 as a Fuel Filter. Some people say you need a gascolator, so we call it one for them ;) It is positioned after the fuel valve and before the electric pump.

As a...
Forum: RV-7/7A 04-21-2015, 04:35 PM
Replies: 15
Views: 4,170
Posted By Andy Hill
Just adding some info here... Prior the 'G' hub,...

Just adding some info here... Prior the 'G' hub, Hartzell learned to limit the coarse pitch stop on the composite prop to avoid standard RV cowls. "Standard" being difficult to define, since each RV...
Forum: RV-8/8A 04-20-2015, 03:14 AM
Replies: 11
Views: 5,001
Posted By Andy Hill
Hi Tim If there was a "clear" best, then...

Hi Tim

If there was a "clear" best, then everyone would use one!

As ever a compromise between:
Weight
Cost
Looks
High Speed Performance
Low Speed Performance
Forum: RV-7/7A 04-19-2015, 04:29 PM
Replies: 15
Views: 4,170
Posted By Andy Hill
Hi Sylvain As Kahuna says, the composite...

Hi Sylvain

As Kahuna says, the composite Hartzell gives a significant increase in static / low speed thrust - yet with little performance loss at the high speed end (unlike the 3 blade MT).

I would...
Forum: Safety 04-17-2015, 12:52 PM
Replies: 24
Views: 9,467
Posted By Andy Hill
There must be thousands of NTSB (and foreign...

There must be thousands of NTSB (and foreign equivalent) GA accident reports covering various causes.

If engine fires are a significant safety hazard (especially to life), I would think one would...
Forum: RV-3 04-16-2015, 03:47 PM
Replies: 10
Views: 2,687
Posted By Andy Hill
As Rob says, a light RV-3B is possible - Randy's...

As Rob says, a light RV-3B is possible - Randy's collated table shows some.

Our RV-3B is being built with IO-320, CS Prop and full inverted systems. The target was a max 800lb Basic Weight, and I...
Forum: RV-3 04-11-2015, 09:54 AM
Replies: 6
Views: 3,150
Posted By Andy Hill
Rear Spar Attach Bolts

Unless I am blind, I cannot actually find in the RV-3 plans the Rear Spar Attach Bolt specification's.

The hole is detailed as 1/4" hence AN-4. On the assumption the spec is as for the RV-8, I...
Forum: RV General Discussion/News 04-09-2015, 01:23 PM
Replies: 4
Views: 1,730
Posted By Andy Hill
Potential alternative is check Edge Distance for...

Potential alternative is check Edge Distance for an AN4 bolt - might be OK?
Forum: RV-3 04-06-2015, 10:33 AM
Replies: 60
Views: 52,075
Posted By Andy Hill
Control Bearings

To save some confusion later on, suggest write on your plans the 'Bearing Types'. The plans sometimes omit this, or use an outdated part type - the packing lists do make it clear. The male bearings...
Forum: RV-8/8A 04-06-2015, 06:16 AM
Replies: 7
Views: 1,727
Posted By Andy Hill
Aspects to consider re the Mixture Cable lengths...

Aspects to consider re the Mixture Cable lengths (62" v 60"):
Are you driving the mixture arm directly i.e. cable to arm?
Or via an intermediate lever system [Vans IO-360 THROTTLE/MIX kit]
Which...
Forum: RV-8/8A 04-05-2015, 02:23 PM
Replies: 7
Views: 1,727
Posted By Andy Hill
Hi Don Prop: 55" as per Vans (unaffected by...

Hi Don

Prop: 55" as per Vans (unaffected by Superior etc.)
Throttle: 60" as per Vans works fine with XP-IO-360
Mixture: 52"

We were advised to get these by someone who had built RV-8 XP-IO-360 and...
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