http://rgl.faa.gov/Regulatory_and_Guida ... enDocument
Timing Chain replacement/inspection due to windmilling restarts
New DA-62 AD
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- rdrobson
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- First Name: Ron
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Re: New DA-62 AD
I hope it's not standard procedure to do a windmilling restart during factory release testing.
--Ron
--Ron
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Re: New DA-62 AD
I was wondering the same thing! Since accepting plane, we haven't done any windmill restarts.rdrobson wrote:I hope it's not standard procedure to do a windmilling restart during factory release testing.
--Ron
Good question for DAI Canada!
Looking!
1980 414A - N2691Y (sold)
DA62 - N100DA 62.078 (sold)
DA42TDi - N742SA 42.AC112 (sold)
1980 414A - N2691Y (sold)
DA62 - N100DA 62.078 (sold)
DA42TDi - N742SA 42.AC112 (sold)
- CFIDave
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Re: New DA-62 AD
Windmilling engine restarts *used* to be my preferred way to restart a shut-down engine in my DA42-VI. It's easier than using the starter and doesn't run the risk of stripping starter gears if the prop is moving when engaging the starter. Of course I did this long before Diamond published documents stating that this might stretch the engine's timing chain (requiring early replacement).
With my DA62, I've been careful to only ever use the starter for engine restart in flight. My plane is used extensively for demos -- where it's fun to show potential customers a feathered prop and the plane's climb rate on one engine. (Many are Cirrus owners who of course have never flown with an engine purposely shut-down in flight.) The key is to pitch up to around 90 knots IAS before turning the Engine Master back ON to unfeather the prop, and to only push the START button with the blades completely stopped.
With my DA62, I've been careful to only ever use the starter for engine restart in flight. My plane is used extensively for demos -- where it's fun to show potential customers a feathered prop and the plane's climb rate on one engine. (Many are Cirrus owners who of course have never flown with an engine purposely shut-down in flight.) The key is to pitch up to around 90 knots IAS before turning the Engine Master back ON to unfeather the prop, and to only push the START button with the blades completely stopped.
Epic Aircraft E1000 GX
Former DA40XLS, DA42-VI, and DA62 owner
ATP, CFI, CFI-I, MEI
Former DA40XLS, DA42-VI, and DA62 owner
ATP, CFI, CFI-I, MEI
-
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- First Name: John
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Re: New DA-62 AD
Hi Dave -
Do you know if the DAI test pilots do "windmilling" or "starter" starts when they are checking the feathering accumulator during their pre-delivery checks? I'm planning to call London Monday to find out - it would be a bummer if the timing chain needs to be replaced because of a "pre-delivery" check??!!
Thanks
Do you know if the DAI test pilots do "windmilling" or "starter" starts when they are checking the feathering accumulator during their pre-delivery checks? I'm planning to call London Monday to find out - it would be a bummer if the timing chain needs to be replaced because of a "pre-delivery" check??!!
Thanks
Looking!
1980 414A - N2691Y (sold)
DA62 - N100DA 62.078 (sold)
DA42TDi - N742SA 42.AC112 (sold)
1980 414A - N2691Y (sold)
DA62 - N100DA 62.078 (sold)
DA42TDi - N742SA 42.AC112 (sold)
-
- 4 Diamonds Member
- Posts: 313
- Joined: Thu Feb 16, 2017 5:16 pm
- First Name: John
- Aircraft Type: OTHER
- Aircraft Registration: N2691Y
- Airports: KPTK KDTW
- Has thanked: 51 times
- Been thanked: 143 times
Re: New DA-62 AD
OOPS!!!!......I meant UNfeathering accumulator!jb642DA wrote:Hi Dave -
Do you know if the DAI test pilots do "windmilling" or "starter" starts when they are checking the feathering accumulator during their pre-delivery checks? I'm planning to call London Monday to find out - it would be a bummer if the timing chain needs to be replaced because of a "pre-delivery" check??!!
Thanks
Looking!
1980 414A - N2691Y (sold)
DA62 - N100DA 62.078 (sold)
DA42TDi - N742SA 42.AC112 (sold)
1980 414A - N2691Y (sold)
DA62 - N100DA 62.078 (sold)
DA42TDi - N742SA 42.AC112 (sold)
- CFIDave
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- First Name: Dave
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Re: New DA-62 AD
Diamond's test pilots obviously read SBs and ADs, and thus are fully aware of the prohibition against engine starts using windmilling. So I'm sure that when they test prop operation after in-flight engine shutdown that they use the starter for engine restart.jb642DA wrote:Do you know if the DAI test pilots do "windmilling" or "starter" starts when they are checking the feathering accumulator during their pre-delivery checks? I'm planning to call London Monday to find out - it would be a bummer if the timing chain needs to be replaced because of a "pre-delivery" check??!!
Epic Aircraft E1000 GX
Former DA40XLS, DA42-VI, and DA62 owner
ATP, CFI, CFI-I, MEI
Former DA40XLS, DA42-VI, and DA62 owner
ATP, CFI, CFI-I, MEI