RV-9A Firewall Forward/Engine

Wednesday, January 26, 2005

EGT/CHT Probes

Here's a tip for those of you who suffer through my builders log. GRT Avionics sells EGT/CHT probes for less than what Van's and others sell them for. Here is the pricing Sandy sent me:

EGT-HCS (small hose clamp) $36 each
EGT-HC (large hose clamp - 2 inch and larger) $36 each (Van's = $55)
EGT-CF (compression fitting like Rotax) $36 each

CHT-BAY (bayonette style) $38 each (Van's = $60)
CHT-ADPT (adapter for above) $5 each
CHT-x (various sizes that go under spark plugs ... 10-12-14-18) $14 and $18 each

Friday, January 21, 2005

Mark Landoll Pricing

Overhauled 35 amp alternator w/reg. attached & external cooling fan $70.00
Overhauled 55 & 60 amp alternators w/internal voltage reg. and fan $90.00
Voltage reg. only $20.00
Mount bracket, pad mount $10.00
Case split bolt mount bracket $15.00
Adjusting arm $10.00
4" aluminum pulley - extra pulley-larger $25.00
Shippping $10.00

Starters:

Remfd. Datsun Starter $125.00
Mount bracket $75.00
total wide tooth starter $200.00
Narrow 149 tooth pinion gear $10.00
total narrow tooth starter $210.00

UPS (approx.) $10.00 -- $15.00

Thursday, January 20, 2005

Starter / Alternator

It was recommended to me to contact Mark Landoll for an alternator and it also seems like he sells starters as well. I'm going to email him and get the scoop and prices. The starter price is $170 (vs $355 from Van's for a Skytec). I think the alternator kit is $140.

Mark Landoll's Electrical Service
1205 Redbud Lane
Newcastle, OK 73065
405-392-3847

Speaking of alternators.... there is major debate on internally regulated vs. externally regulated. It seems the internally regulated can self-destruct easily if they aren't always connected to a battery or something like that. Sounds like there is also the possibility of the internal regulator going bad as well. Who knows... I believe Marks' alternators are externally regulated.


Wednesday, January 19, 2005

Going Catto

Decided on the Catto prop... have invoice, will be mailing deposit this week.

Catto Propellers
15301 Jesus Maria Rd.
Mokelumne Hill, CA 95245
209-754-3553

Specs:
3-Bladed Wood/Glass Composite
Propeller for RV-9A
66" Diameter x 70" Pitch
0-320 160HP@2700PRM
Top Speed at Target RPM - 190mph@2800rpm
4.375" Finished Propeller Thickness
7" Diameter Prop Flange
SAE-2 Pattern, 7/16" Bolts and 5/8" Lugs



Cowl ordered

I've committed..

"You've been added to the list for a cowling and your e-mail has been forwarded to the south shop for the plenum order. Should they fail to contact you, please let us know (older generation computer skills marginal). -- Thank you, Will."


James Aircraft - Makers of the "Holy Cowl".

Monday, January 17, 2005

Engine Update and Prop Decision

My tech counselor has a borescope and is going to come out and look inside the cylinders and possibly the case to see what shape the engine is in. That will determine the route I'll be taking.

PROP... YADD (Yet another d@#% decision)

I was about to order the Sensenich prop from Van's since it has a 4 month lead time. Then I get an email from Mel Asberry saying I should consider the Catto since it is cheaper, performed better, was lighter, etc.

Ok... I thought about Catto props previously but didn't dig deep enough on the performance side. So I emailed a Scott about his decision and Craig at Catto about some things.

PROS:
-- Only 17 lbs.
-- 3-Bladed which results in smoother operation
-- No RPM restriction like the Sensenich.
-- Supposedly better performance.

NOTES:
-- Cost is essentially the same. Prop itself ($1,650) is cheaper but you have to buy then extension and bolts which brings the cost right back up to be the same as Sensenich.
-- Possible CG/WB issues with lighter prop? May just mean not so much luggage.

CONS: (for me)
-- Non-certified prop.. means a 40-hour Phase I test period vs. 25 hr.
-- If I use the SJ cowl as I'd like, that requires a 4" prop extension ($355). Add in the crush plate ($55), and bolts ($90) and I'm actually at more than a Sensenich prop. ($2150 for Catto, $1935 for Sensenich)
-- Oh yea, he is on a 4-month lead time right now as well.

So for $215 extra dollars I get a better performing, smoother operation, lighter prop. I think it might be worth it.